Merge branch 'master' of https://github.com/shautvast/autounit

README.md

@@ -1,4 +1,6 @@
-autounit
+Autounit
 ========
 
-autounit
+Autounit is an attempt to make my life easier when writing code. It should provide me with unit tests for any given type.
+This attempt is destined to fail, as it would require strong AI to understand the intent of a piece of code. Even for humans this is often a daunting task.
+Nevertheless, let's see where this goes...

build.gradle

@@ -5,8 +5,8 @@ repositories{
    mavenCentral()
 }
 
-sourceCompatibility = "1.6"
-targetCompatibility = "1.6"
+sourceCompatibility = "1.8"
+targetCompatibility = "1.8"
 
 sourceSets {
     test {
@@ -23,7 +23,7 @@ dependencies{
    compile 'javassist:javassist:3.12.1.GA'
    compile 'com.thoughtworks.xstream:xstream:1.4.7'
    compile 'org.mockito:mockito-all:1.9.5'
-   testCompile 'junit:junit:4.11'
-   testCompile 'org.jacoco:org.jacoco.core:0.7.1.201405082137'
+   compile 'org.jacoco:org.jacoco.core:0.7.1.201405082137'
    
+   testCompile 'junit:junit:4.11'
 }

src/main/java/nl/jssl/autounit/AutoTester.java

@@ -1,33 +0,0 @@
-package nl.jssl.autounit;
-
-import java.io.FileInputStream;
-import java.io.ObjectInputStream;
-import java.util.Map;
-
-/**
- * record: records in and outputs
- * 
- * assertUnchangedBehaviour: raises an error when recorded inputs do no lead to
- * recorded outputs
- */
-public class AutoTester {
-	ResultsWriter resultsWriter = new ResultsWriter();
-
-	public Map<String, MethodCallResults> record(Class<?> instance) {
-		Map<String, MethodCallResults> results = new Recorder(instance).record();
-		resultsWriter.write(instance.getName(), results);
-		return results;
-	}
-
-	private Map<String, MethodCallResults> load(String classname) {
-		try {
-			ObjectInputStream objectInputStream = new ObjectInputStream(new FileInputStream(classname + ".dat"));
-			Map<String, MethodCallResults> results = (Map<String, MethodCallResults>) objectInputStream.readObject();
-			objectInputStream.close();
-			return results;
-		} catch (Exception e) {
-			throw new RuntimeException(e);
-		}
-	}
-
-}

src/main/java/nl/jssl/autounit/Configuration.java

@@ -4,17 +4,20 @@ import javassist.ClassPool;
 import javassist.NotFoundException;
 
 /**
- * TODO make configurable
  * 
  */
 public class Configuration {
 	public static ClassPool getClassPool() {
 		ClassPool classPool = new ClassPool();
 		try {
-			classPool.appendClassPath("c:\\workspaces\\autounit\\autounit\\bin");
+			classPool.appendClassPath(getClasspathSettingOrEclipseDefault());
 		} catch (NotFoundException e) {
 			throw new RuntimeException(e);
 		}
 		return classPool;
 	}
+
+	private static String getClasspathSettingOrEclipseDefault() {
+		return System.getProperty("autounit.cp", "bin");
+	}
 }

src/main/java/nl/jssl/autounit/CoverageAnalyser.java

@@ -1,103 +0,0 @@
-package nl.jssl.autounit;
-
-import java.io.InputStream;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-
-import nl.jssl.autounit.utils.MemoryClassloader;
-import nl.jssl.autounit.utils.SilentObjectCreator;
-
-import org.jacoco.core.analysis.Analyzer;
-import org.jacoco.core.analysis.CoverageBuilder;
-import org.jacoco.core.analysis.IClassCoverage;
-import org.jacoco.core.data.ExecutionDataStore;
-import org.jacoco.core.data.SessionInfoStore;
-import org.jacoco.core.instr.Instrumenter;
-import org.jacoco.core.runtime.IRuntime;
-import org.jacoco.core.runtime.LoggerRuntime;
-import org.jacoco.core.runtime.RuntimeData;
-
-public class CoverageAnalyser {
-	private IRuntime runtime;
-	private RuntimeData data = new RuntimeData();
-
-	@SuppressWarnings("unchecked")
-	public <T> T instrument(Class<T> testTarget) {
-		try {
-			String targetName = testTarget.getName();
-
-			runtime = new LoggerRuntime();
-
-			Instrumenter instr = new Instrumenter(runtime);
-			byte[] instrumented = instr.instrument(getTargetClass(targetName), targetName);
-
-			data = new RuntimeData();
-			runtime.startup(data);
-
-			MemoryClassloader memoryClassLoader = new MemoryClassloader();
-			memoryClassLoader.addDefinition(targetName, instrumented);
-			Class<T> targetClass = (Class<T>) memoryClassLoader.loadClass(targetName);
-
-			return SilentObjectCreator.create(targetClass);
-		} catch (Exception e) {
-			throw new RuntimeException(e);
-		}
-	}
-
-	public <T> InvocationResult analyse(T instrumentedTestTarget, Method method, Object[] inputs) {
-		try {
-			Method instanceMethod = getInstrumentedMethod(instrumentedTestTarget, method);
-			Object output = invoke(instrumentedTestTarget, inputs, instanceMethod);
-
-			// jacoco stuff
-			ExecutionDataStore executionData = new ExecutionDataStore();
-			SessionInfoStore sessionInfos = new SessionInfoStore();
-			data.collect(executionData, sessionInfos, false);
-			runtime.shutdown();
-
-			CoverageBuilder coverageBuilder = new CoverageBuilder();
-			Analyzer analyzer = new Analyzer(executionData, coverageBuilder);
-			String targetName = instrumentedTestTarget.getClass().getName();
-			analyzer.analyzeClass(getTargetClass(targetName), targetName);
-
-			return new InvocationResult(coverageBuilder.getClasses().iterator().next(), output);
-		} catch (Exception e) {
-			throw new ExecutionException(e);
-		}
-	}
-
-	private <T> Method getInstrumentedMethod(T testTarget, Method method) throws NoSuchMethodException {
-		return testTarget.getClass().getDeclaredMethod(method.getName(), method.getParameterTypes());
-	}
-
-	private <T> Object invoke(T testTarget, Object[] inputs, Method newInstanceMethod) throws IllegalAccessException {
-		Object output;
-		try {
-			output = newInstanceMethod.invoke(testTarget, inputs);
-		} catch (InvocationTargetException i) {
-			StackTraceElement stacktraceElement = i.getTargetException().getStackTrace()[0];
-			String info = stacktraceElement.getClassName() + ":" + stacktraceElement.getLineNumber();
-			output = i.getTargetException().getClass().getName() + "(" + i.getTargetException().getMessage() + ") at "
-					+ info;
-		}
-		return output;
-	}
-
-	private InputStream getTargetClass(String name) {
-		String resource = '/' + name.replace('.', '/') + ".class";
-		return getClass().getResourceAsStream(resource);
-	}
-
-}
-
-class InvocationResult {
-	public final IClassCoverage coverage;
-	public final Object output;
-
-	public InvocationResult(IClassCoverage coverage, Object output) {
-		super();
-		this.coverage = coverage;
-		this.output = output;
-	}
-
-}

src/main/java/nl/jssl/autounit/ExecutionException.java

@@ -1,25 +0,0 @@
-package nl.jssl.autounit;
-@SuppressWarnings("serial")
-public class ExecutionException extends RuntimeException {
-
-    public ExecutionException() {
-        super();
-    }
-
-    public ExecutionException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
-        super(message, cause, enableSuppression, writableStackTrace);
-    }
-
-    public ExecutionException(String message, Throwable cause) {
-        super(message, cause);
-    }
-
-    public ExecutionException(String message) {
-        super(message);
-    }
-
-    public ExecutionException(Throwable cause) {
-        super(cause);
-    }
-
-}

src/main/java/nl/jssl/autounit/InAndOutput.java

@@ -1,19 +0,0 @@
-package nl.jssl.autounit;
-
-public class InAndOutput {
-	private final Object input;
-	private final Object output;
-
-	public InAndOutput(Object input, Object output) {
-		this.input = input;
-		this.output = output;
-	}
-
-	public Object getInput() {
-		return input;
-	}
-
-	public Object getOutput() {
-		return output;
-	}
-}

src/main/java/nl/jssl/autounit/JUnitTestCreator.java

@@ -0,0 +1,55 @@
+package nl.jssl.autounit;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.PrintStream;
+
+import nl.jssl.autounit.classanalyser.ClassAnalyser;
+import nl.jssl.autounit.classanalyser.ClassResults;
+import nl.jssl.autounit.results.JUnitSourceWriter;
+
+/**
+ * Creates a Junit source file
+ *
+ */
+public class JUnitTestCreator<T> {
+
+	private static final String SOURCEDIRECTORY = "src/outcome/java/";
+	private final Class<T> classUnderTest;
+	private final File packageDirectory;
+
+	public JUnitTestCreator(Class<T> type) {
+		this.classUnderTest = type;
+		packageDirectory = createPackageDirectory();
+	}
+
+	public void create() {
+		try {
+			writeSourceFile();
+		} catch (FileNotFoundException e) {
+			throw new RuntimeException(e);
+		}
+	}
+
+	private void writeSourceFile() throws FileNotFoundException {
+		ClassResults results = new ClassAnalyser<>(classUnderTest).analyseAndGetResults();
+		getSourceWriter(packageDirectory).write(results);
+	}
+
+	private JUnitSourceWriter getSourceWriter(File packageDirectory) throws FileNotFoundException {
+		return new JUnitSourceWriter(new PrintStream(new FileOutputStream(getSourceFile())));
+	}
+
+	private File createPackageDirectory() {
+		File packageDirectory = new File(
+				SOURCEDIRECTORY + classUnderTest.getPackage().getName().replaceAll("\\.", "/"));
+		packageDirectory.mkdirs();
+		return packageDirectory;
+	}
+
+	private File getSourceFile() {
+		return new File(packageDirectory, classUnderTest.getSimpleName() + "Tests.java");
+	}
+
+}

src/main/java/nl/jssl/autounit/MethodCallResults.java

@@ -1,57 +0,0 @@
-package nl.jssl.autounit;
-
-import java.lang.reflect.Method;
-import java.util.ArrayList;
-import java.util.List;
-
-import org.jacoco.core.analysis.IClassCoverage;
-
-public class MethodCallResults {
-	private transient Object testinstance;
-	private transient Method executedMethod;
-	private List<InAndOutput> contents = new ArrayList<InAndOutput>();
-	private transient IClassCoverage coverageResult;
-
-	public MethodCallResults(Object testClass, Method m) {
-		super();
-		this.testinstance = testClass;
-		this.executedMethod = m;
-	}
-
-	public void addResult(Object input, Object output) {
-		contents.add(new InAndOutput(input, output));
-	}
-
-	public List<InAndOutput> getContents() {
-		return contents;
-	}
-
-	public Object getTestinstance() {
-		return testinstance;
-	}
-
-	public Method getExecutedMethod() {
-		return executedMethod;
-	}
-
-	@Override
-	public String toString() {
-		return getReport();
-	}
-
-	public void setCoverageResult(IClassCoverage coverageResult) {
-		this.coverageResult = coverageResult;
-	}
-
-	public IClassCoverage getCoverageResult() {
-		return coverageResult;
-	}
-
-	public String getReport() {
-		StringBuilder s = new StringBuilder();
-		for (InAndOutput inAndOutput : contents) {
-			s.append(inAndOutput.getInput() + " => " + inAndOutput.getOutput() + "\n");
-		}
-		return s.toString();
-	}
-}

src/main/java/nl/jssl/autounit/MethodcallExecutor.java

@@ -1,64 +0,0 @@
-package nl.jssl.autounit;
-
-import java.lang.reflect.Method;
-import java.util.List;
-
-import nl.jssl.autounit.utils.Permuter.Tuple;
-
-/**
- * voert 1 methode uit met wisselende input parameters en bewaart het resultaat.
- * 
- */
-public class MethodcallExecutor {
-	private Object instrumentedTestTarget;
-	private Method m;
-	CoverageAnalyser coverageAnalyser = new CoverageAnalyser();
-	private MethodCallResults result;
-
-	public MethodcallExecutor(Class<?> testClass, Method m) {
-		super();
-		this.instrumentedTestTarget = coverageAnalyser.instrument(testClass);
-		this.m = m;
-		this.result = new MethodCallResults(instrumentedTestTarget, m);
-	}
-
-	public MethodCallResults execute(List<Tuple> inputs) {
-		int missedLines = Integer.MAX_VALUE;
-		InvocationResult lastInvocationResult = null, previous = null;
-		for (Tuple input : inputs) {
-			previous = lastInvocationResult;
-			lastInvocationResult = analyseMethodCall(m, input);
-			int missedCount = lastInvocationResult.coverage.getLineCounter().getMissedCount();
-			if (missedCount < missedLines) { // coverage increases, this is an
-												// interesting input
-				missedLines = missedCount;
-				result.addResult(input, lastInvocationResult.output);
-			}
-			if (missedCount == 0) { // coverage = 100%: done
-				break;
-			}
-		}
-		if (lastInvocationResult != null) {
-			if (previous == null) {
-				result.setCoverageResult(lastInvocationResult.coverage);
-			} else {
-				result.setCoverageResult(previous.coverage);
-			}
-		}
-		return result;
-	}
-
-	private InvocationResult analyseMethodCall(Method m, Tuple input) {
-		Object[] argumentarray = input.toArray();
-		for (int i = 0; i < argumentarray.length; i++) {
-			if (argumentarray[i].toString().equals("autounit:[NULL]")) {
-				argumentarray[i] = null;
-			}
-		}
-		return coverageAnalyser.analyse(instrumentedTestTarget, m, argumentarray);
-	}
-
-	public MethodCallResults getResult() {
-		return result;
-	}
-}

src/main/java/nl/jssl/autounit/Player.java

@@ -1,27 +0,0 @@
-package nl.jssl.autounit;
-import java.util.List;
-import java.util.Map;
-import java.util.Map.Entry;
-
-public class Player {
-    final private Object testinstance;
-
-    private Player(Object testinstance) {
-        super();
-        this.testinstance = testinstance;
-    }
-
-    public void playback(Map<String, List<MethodCallResults>> recordedResults) {
-        for (Entry<String, List<MethodCallResults>> entry: recordedResults.entrySet()) {
-            getInputs(entry.getValue());
-            // new Executor(testinstance,getMethod(entry.getKey()))
-        }
-
-    }
-
-    private void getInputs(List<MethodCallResults> value) {
-        // TODO Auto-generated method stub
-
-    }
-
-}

src/main/java/nl/jssl/autounit/Recorder.java

@@ -1,61 +0,0 @@
-package nl.jssl.autounit;
-
-import java.lang.reflect.Method;
-import java.lang.reflect.Modifier;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-import nl.jssl.autounit.inputs.MethodcallArgumentsFactory;
-import nl.jssl.autounit.utils.Permuter.Tuple;
-
-public class Recorder {
-	private Class<?> testTarget;
-
-	public Recorder(Class<?> testTarget) {
-		this.testTarget = testTarget;
-	}
-
-	public Map<String, MethodCallResults> record() {
-		Map<String, MethodCallResults> classresults = new HashMap<String, MethodCallResults>();
-		for (Method m : getPublicMethods()) {
-			MethodCallResults methodresults = recordMethod(m);
-			classresults.put(getMethodSignature(m), methodresults);
-		}
-		return classresults;
-	}
-
-	private String getMethodSignature(Method m) {
-		String signature = Modifier.toString(m.getModifiers()) + " " + m.getReturnType().getName() + " " + m.getName()
-				+ "(";
-		int index = 1;
-		Class<?>[] parameterTypes = m.getParameterTypes();
-		for (Class<?> type : parameterTypes) {
-			signature += type.getName() + " arg" + (index++);
-			if (index <= parameterTypes.length) {
-				signature += ",";
-			}
-		}
-		signature += ")";
-		return signature;
-	}
-
-	private MethodCallResults recordMethod(Method m) {
-		List<Tuple> inputSet = new MethodcallArgumentsFactory().getInputs(testTarget, m);
-		MethodcallExecutor methodcallExecutor = new MethodcallExecutor(testTarget, m);
-		methodcallExecutor.execute(inputSet);
-		return methodcallExecutor.getResult();
-	}
-
-	List<Method> getPublicMethods() {
-		List<Method> publicMethods = new ArrayList<Method>();
-		for (Method m : testTarget.getDeclaredMethods()) {
-			if (Modifier.isPublic(m.getModifiers())) {
-				publicMethods.add(m);
-			}
-		}
-		return publicMethods;
-	}
-
-}

src/main/java/nl/jssl/autounit/ResultsWriter.java

@@ -1,35 +0,0 @@
-package nl.jssl.autounit;
-
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.util.Map;
-
-import nl.jssl.autounit.utils.Permuter.Tuple;
-import nl.jssl.autounit.utils.XStreamArgumentsConverter;
-
-import com.thoughtworks.xstream.XStream;
-
-public class ResultsWriter {
-	XStream xstream = new XStream();
-
-	public ResultsWriter() {
-		setup();
-	}
-
-	private void setup() {
-		xstream.alias("case", InAndOutput.class);
-		xstream.alias("results", MethodCallResults.class);
-		xstream.alias("args", Tuple.class);
-
-		xstream.registerConverter(new XStreamArgumentsConverter());
-	}
-
-	public void write(String classname, Map<String, MethodCallResults> results) {
-		try {
-			xstream.toXML(results, new FileOutputStream(classname + ".xml"));
-		} catch (FileNotFoundException e) {
-			throw new RuntimeException(e);
-		}
-
-	}
-}

src/main/java/nl/jssl/autounit/classanalyser/AnalysisFailed.java

@@ -0,0 +1,25 @@
+package nl.jssl.autounit.classanalyser;
+@SuppressWarnings("serial")
+public class AnalysisFailed extends RuntimeException {
+
+    public AnalysisFailed() {
+        super();
+    }
+
+    public AnalysisFailed(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
+        super(message, cause, enableSuppression, writableStackTrace);
+    }
+
+    public AnalysisFailed(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public AnalysisFailed(String message) {
+        super(message);
+    }
+
+    public AnalysisFailed(Throwable cause) {
+        super(cause);
+    }
+
+}

src/main/java/nl/jssl/autounit/classanalyser/ClassAnalyser.java

@@ -0,0 +1,50 @@
+package nl.jssl.autounit.classanalyser;
+
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.util.ArrayList;
+import java.util.List;
+
+import nl.jssl.autounit.inputs.MethodcallArgumentsFactory;
+import nl.jssl.autounit.util.LinkedList;
+
+/**
+ * Analyses the class you want to create tests for.
+ */
+public class ClassAnalyser<T> {
+	private Class<T> testTarget;
+
+	public ClassAnalyser(Class<T> testTarget) {
+		this.testTarget = testTarget;
+	}
+
+	public ClassResults analyseAndGetResults() {
+		List<MethodExecutionResults> classresults = new ArrayList<>();
+
+		for (Method m : getPublicMethods()) {
+			classresults.add(analyseMethod(m));
+		}
+
+		return new ClassResults(testTarget, classresults);
+	}
+
+	private MethodExecutionResults analyseMethod(Method method) {
+		List<LinkedList> inputSet = new MethodcallArgumentsFactory(testTarget).getInputs(method);
+
+		MethodcallExecutor<T> methodcallExecutor = new MethodcallExecutor<>(testTarget, method);
+
+		return methodcallExecutor.executeAndGetResults(inputSet);
+	}
+
+	List<Method> getPublicMethods() {
+		List<Method> publicMethods = new ArrayList<Method>();
+
+		for (Method m : testTarget.getDeclaredMethods()) {
+			if (Modifier.isPublic(m.getModifiers())) {
+				publicMethods.add(m);
+			}
+		}
+		return publicMethods;
+	}
+
+}

src/main/java/nl/jssl/autounit/classanalyser/ClassResults.java

@@ -0,0 +1,22 @@
+package nl.jssl.autounit.classanalyser;
+
+import java.util.List;
+
+public class ClassResults {
+	private final Class<?> type;
+	private final List<MethodExecutionResults> methodCallResults;
+
+	public ClassResults(Class<?> type, List<MethodExecutionResults> methodCallResults) {
+		super();
+		this.type = type;
+		this.methodCallResults = methodCallResults;
+	}
+
+	public List<MethodExecutionResults> getMethodCallResults() {
+		return methodCallResults;
+	}
+
+	public Class<?> getType() {
+		return type;
+	}
+}

src/main/java/nl/jssl/autounit/classanalyser/CoverageAnalyser.java

@@ -0,0 +1,126 @@
+package nl.jssl.autounit.classanalyser;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+import org.jacoco.core.analysis.Analyzer;
+import org.jacoco.core.analysis.CoverageBuilder;
+import org.jacoco.core.data.ExecutionDataStore;
+import org.jacoco.core.data.SessionInfoStore;
+import org.jacoco.core.instr.Instrumenter;
+import org.jacoco.core.runtime.IRuntime;
+import org.jacoco.core.runtime.LoggerRuntime;
+import org.jacoco.core.runtime.RuntimeData;
+
+import nl.jssl.autounit.util.MemoryClassloader;
+import nl.jssl.autounit.util.SilentObjectCreator;
+
+/**
+ * When creating tests, increasing coverage indicates a good test. Hence a
+ * CoverageAnalyser. It uses Jacoco (http://eclemma.org/jacoco/), the java
+ * interface for eclemma.
+ */
+public class CoverageAnalyser<T> {
+	private final IRuntime runtime;
+	private final RuntimeData data;
+	private final Class<T> testTarget;
+
+	public CoverageAnalyser(Class<T> testTarget) {
+		this.testTarget = testTarget;
+		data = new RuntimeData();
+		runtime = new LoggerRuntime();
+	}
+
+	public T instrument() {
+		try {
+			runtime.startup(data);
+
+			return getInstrumentedObjectInstance();
+		} catch (Exception e) {
+			throw new AnalysisFailed(e);
+		}
+	}
+
+	public InvocationResult analyse(T instrumentedTestTarget, Method method, Object[] inputs) {
+		try {
+			Object output = invokeMethod(instrumentedTestTarget, inputs,
+					getInstrumentedMethod(instrumentedTestTarget, method));
+
+			// jacoco stuff
+			ExecutionDataStore executionData = executionData();
+
+			runtime.shutdown();
+
+			CoverageBuilder coverageBuilder = coverageBuilder(instrumentedTestTarget, executionData);
+
+			return new InvocationResult(coverageBuilder.getClasses().iterator().next(), output);
+		} catch (Exception e) {
+			throw new AnalysisFailed(e);
+		}
+	}
+
+	@SuppressWarnings("unchecked")
+	private T getInstrumentedObjectInstance() throws IOException, ClassNotFoundException {
+		MemoryClassloader memoryClassLoader = getMemoryClassLoaderForClass(getInstrumentedByteCode());
+		Class<T> targetClass = (Class<T>) memoryClassLoader.loadClass(testTarget.getName());
+
+		return SilentObjectCreator.create(targetClass);
+	}
+
+	private byte[] getInstrumentedByteCode() throws IOException {
+		return new Instrumenter(runtime).instrument(getTargetClass(), testTarget.getName());
+	}
+
+	private MemoryClassloader getMemoryClassLoaderForClass(byte[] instrumentedByteCode) {
+		MemoryClassloader memoryClassLoader = new MemoryClassloader();
+		memoryClassLoader.addDefinition(testTarget.getName(), instrumentedByteCode);
+		return memoryClassLoader;
+	}
+
+	private ExecutionDataStore executionData() {
+		ExecutionDataStore executionData = new ExecutionDataStore();
+		SessionInfoStore sessionInfos = new SessionInfoStore();
+		data.collect(executionData, sessionInfos, false);
+		return executionData;
+	}
+
+	private CoverageBuilder coverageBuilder(T instrumentedTestTarget, ExecutionDataStore executionData)
+			throws IOException {
+		CoverageBuilder coverageBuilder = new CoverageBuilder();
+		Analyzer analyzer = new Analyzer(executionData, coverageBuilder);
+		String targetName = instrumentedTestTarget.getClass().getName();
+		analyzer.analyzeClass(getTargetClass(), targetName);
+		return coverageBuilder;
+	}
+
+	private Method getInstrumentedMethod(T testTarget, Method method) throws NoSuchMethodException {
+		return testTarget.getClass().getDeclaredMethod(method.getName(), method.getParameterTypes());
+	}
+
+	private Object invokeMethod(T testTarget, Object[] inputs, Method newInstanceMethod) throws IllegalAccessException {
+		Object output;
+		try {
+			output = newInstanceMethod.invoke(testTarget, inputs);
+		} catch (InvocationTargetException i) {
+			output = createOutputFromException(i);
+		}
+		return output;
+	}
+
+	private Object createOutputFromException(InvocationTargetException i) {
+		Object output;
+		StackTraceElement stacktraceElement = i.getTargetException().getStackTrace()[0];
+		String info = stacktraceElement.getClassName() + ":" + stacktraceElement.getLineNumber();
+		output = i.getTargetException().getClass().getName() + "(" + i.getTargetException().getMessage() + ") at "
+				+ info;
+		return output;
+	}
+
+	private InputStream getTargetClass() {
+		String resource = '/' + testTarget.getName().replace('.', '/') + ".class";
+		return getClass().getResourceAsStream(resource);
+	}
+
+}

src/main/java/nl/jssl/autounit/classanalyser/InAndOutput.java

@@ -0,0 +1,21 @@
+package nl.jssl.autounit.classanalyser;
+
+import nl.jssl.autounit.util.LinkedList;
+
+public class InAndOutput {
+	private final LinkedList input;
+	private final Object output;
+
+	public InAndOutput(LinkedList input, Object output) {
+		this.input = input;
+		this.output = output;
+	}
+
+	public LinkedList getInput() {
+		return input;
+	}
+
+	public Object getOutput() {
+		return output;
+	}
+}

src/main/java/nl/jssl/autounit/classanalyser/InvocationResult.java

@@ -0,0 +1,23 @@
+package nl.jssl.autounit.classanalyser;
+
+import org.jacoco.core.analysis.IClassCoverage;
+
+class InvocationResult {
+	private final IClassCoverage coverage;
+	private final Object output;
+
+	public InvocationResult(IClassCoverage coverage, Object output) {
+		super();
+		this.coverage = coverage;
+		this.output = output;
+	}
+
+	public IClassCoverage getCoverage() {
+		return coverage;
+	}
+
+	public Object getOutput() {
+		return output;
+	}
+
+}

src/main/java/nl/jssl/autounit/classanalyser/MethodExecutionResults.java

@@ -0,0 +1,92 @@
+package nl.jssl.autounit.classanalyser;
+
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.jacoco.core.analysis.IClassCoverage;
+
+import nl.jssl.autounit.util.LinkedList;
+
+public class MethodExecutionResults implements Comparable<MethodExecutionResults> {
+	private transient Object testinstance;
+	private transient Method executedMethod;
+	private List<InAndOutput> contents = new ArrayList<InAndOutput>();
+	private transient IClassCoverage coverageResult;
+
+	public MethodExecutionResults(Object testClass, Method m) {
+		super();
+		this.testinstance = testClass;
+		this.executedMethod = m;
+	}
+
+	public void addResult(LinkedList input, Object output) {
+		contents.add(new InAndOutput(input, output));
+	}
+
+	public List<InAndOutput> getContents() {
+		return contents;
+	}
+
+	public Object getTestinstance() {
+		return testinstance;
+	}
+
+	public Method getExecutedMethod() {
+		return executedMethod;
+	}
+
+	@Override
+	public String toString() {
+		return getReport();
+	}
+
+	public void setCoverageResult(IClassCoverage coverageResult) {
+		this.coverageResult = coverageResult;
+	}
+
+	public IClassCoverage getCoverageResult() {
+		return coverageResult;
+	}
+
+	public String getReport() {
+		StringBuilder s = new StringBuilder();
+		for (InAndOutput inAndOutput : contents) {
+			s.append(inAndOutput.getInput() + " => " + inAndOutput.getOutput() + "\n");
+		}
+		return s.toString();
+	}
+
+	public String getMethodSignature() {
+		return getMethodSignature(executedMethod);
+	}
+
+	public String getMethodName() {
+		return executedMethod.getName();
+	}
+
+	private String getMethodSignature(Method m) {
+		String signature = Modifier.toString(m.getModifiers()) + " " + m.getReturnType().getName() + " " + m.getName()
+				+ "(";
+		int index = 1;
+		Class<?>[] parameterTypes = m.getParameterTypes();
+		for (Class<?> type : parameterTypes) {
+			signature += type.getName() + " arg" + (index++);
+			if (index <= parameterTypes.length) {
+				signature += ",";
+			}
+		}
+		signature += ")";
+		return signature;
+	}
+
+	public Class<?> getMethodReturnType() {
+		return executedMethod.getReturnType();
+	}
+
+	@Override
+	public int compareTo(MethodExecutionResults o) {
+		return getMethodName().compareTo(o.getMethodName());
+	}
+}

src/main/java/nl/jssl/autounit/classanalyser/MethodcallExecutor.java

@@ -0,0 +1,90 @@
+package nl.jssl.autounit.classanalyser;
+
+import java.lang.reflect.Method;
+import java.util.List;
+
+import nl.jssl.autounit.util.LinkedList;
+
+/**
+ * Executes 1 method using alternating input parameters and yields execution
+ * results.
+ */
+public class MethodcallExecutor<T> {
+	private T instrumentedTestTarget;
+	private Method methodUnderTest;
+	private MethodExecutionResults result;
+	private final CoverageAnalyser<T> coverageAnalyser;
+
+	public MethodcallExecutor(Class<T> testClass, Method methodUnderTest) {
+		coverageAnalyser = new CoverageAnalyser<T>(testClass);
+		this.instrumentedTestTarget = coverageAnalyser.instrument();
+
+		this.methodUnderTest = methodUnderTest;
+		this.result = new MethodExecutionResults(instrumentedTestTarget, methodUnderTest);
+	}
+
+	public MethodExecutionResults executeAndGetResults(List<LinkedList> inputs) {
+		InvocationResult lastInvocationResult = null, previous = null;
+
+		int missedLines = Integer.MAX_VALUE;
+		for (LinkedList input : inputs) {
+			previous = lastInvocationResult;
+
+			lastInvocationResult = analyseMethodCall(methodUnderTest, input);
+
+			int missedCount = lastInvocationResult.getCoverage().getLineCounter().getMissedCount();
+
+			missedLines = addInOutputCombinationWhenCoverageIncreases(missedLines, lastInvocationResult, input,
+					missedCount);
+
+			if (fullyCoveraged(missedCount)) {
+				break;
+			}
+		}
+		if (lastInvocationResult != null) {
+			if (previous == null) {
+				result.setCoverageResult(lastInvocationResult.getCoverage());
+			} else {
+				result.setCoverageResult(previous.getCoverage());
+			}
+		}
+		return result;
+	}
+
+	private int addInOutputCombinationWhenCoverageIncreases(int missedLines, InvocationResult lastInvocationResult,
+			LinkedList input, int missedCount) {
+		if (coverageHasIncreased(missedLines, missedCount)) {
+			missedLines = missedCount;
+			addInterestingInAndOutput(input, lastInvocationResult);
+		}
+		return missedLines;
+	}
+
+	private void addInterestingInAndOutput(LinkedList input, InvocationResult lastInvocationResult) {
+		result.addResult(input, lastInvocationResult.getOutput());
+	}
+
+	private boolean fullyCoveraged(int missedCount) {
+		return missedCount == 0;
+	}
+
+	private boolean coverageHasIncreased(int missedLines, int missedCount) {
+		return missedCount < missedLines;
+	}
+
+	private InvocationResult analyseMethodCall(Method methodUnderTest, LinkedList input) {
+		Object[] inputs = replaceNullIndicatorWithNull(input.toArray());
+
+		return coverageAnalyser.analyse(instrumentedTestTarget, methodUnderTest, inputs);
+	}
+
+	private Object[] replaceNullIndicatorWithNull(Object[] argumentarray) {
+		for (int i = 0; i < argumentarray.length; i++) {
+			if (argumentarray[i].toString().equals("autounit:[NULL]")) {
+				argumentarray[i] = null;
+			}
+		}
+		return argumentarray;
+	}
+
+}

src/main/java/nl/jssl/autounit/inputs/MethodcallArgumentsFactory.java

@@ -9,28 +9,30 @@ import java.util.Map;
 
 import nl.jssl.autounit.inputs.objects.ObjectArgumentFactory;
 import nl.jssl.autounit.inputs.objects.StringArgumentFactory;
-import nl.jssl.autounit.inputs.primtives.ArgumentFactory;
-import nl.jssl.autounit.inputs.primtives.BooleanArgumentFactory;
-import nl.jssl.autounit.inputs.primtives.ByteArgumentFactory;
-import nl.jssl.autounit.inputs.primtives.DoubleArgumentFactory;
-import nl.jssl.autounit.inputs.primtives.FloatArgumentFactory;
-import nl.jssl.autounit.inputs.primtives.IntegerArgumentFactory;
-import nl.jssl.autounit.utils.Permuter;
-import nl.jssl.autounit.utils.Permuter.Tuple;
+import nl.jssl.autounit.inputs.primitives.ArgumentFactory;
+import nl.jssl.autounit.inputs.primitives.BooleanArgumentFactory;
+import nl.jssl.autounit.inputs.primitives.ByteArgumentFactory;
+import nl.jssl.autounit.inputs.primitives.DoubleArgumentFactory;
+import nl.jssl.autounit.inputs.primitives.FloatArgumentFactory;
+import nl.jssl.autounit.inputs.primitives.IntegerArgumentFactory;
+import nl.jssl.autounit.util.LinkedList;
+import nl.jssl.autounit.util.Permuter;
 
 public class MethodcallArgumentsFactory {
 	private final Map<Class<?>, ArgumentFactory<?>> primitivesFactories;
+	private final Class<?> testTarget;
 
-	public MethodcallArgumentsFactory() {
+	public MethodcallArgumentsFactory(Class<?> testTarget) {
+		this.testTarget = testTarget;
 		primitivesFactories = new HashMap<Class<?>, ArgumentFactory<?>>();
 		populateFactories();
 	}
 
-	public List<Tuple> getInputs(Class<?> testTarget, Method m) {
-		return combine(getArgumentsForAllParameters(testTarget, m));
+	public List<LinkedList> getInputs(Method method) {
+		return combine(getArgumentsForAllParameters(method));
 	}
 
-	private List<Tuple> combine(List<List<?>> inputSetsForAllArguments) {
+	private List<LinkedList> combine(List<List<?>> inputSetsForAllArguments) {
 		int nrOfParameters = inputSetsForAllArguments.size();
 		if (nrOfParameters == 0) {
 			return Collections.emptyList();
@@ -42,25 +44,25 @@ public class MethodcallArgumentsFactory {
 		}
 	}
 
-	private List<Tuple> makeArgumentsForSingleParameterCall(List<List<?>> generatedInputSetsForAllArguments) {
-		List<Tuple> allPossibleArguments = new ArrayList<Tuple>();
+	private List<LinkedList> makeArgumentsForSingleParameterCall(List<List<?>> generatedInputSetsForAllArguments) {
+		List<LinkedList> allPossibleArguments = new ArrayList<>();
 
 		List<?> generatedInputs = generatedInputSetsForAllArguments.iterator().next();
 
 		for (Object variable : generatedInputs) {
-			Tuple argument = new Tuple(variable);
+			LinkedList argument = new LinkedList(variable);
 			allPossibleArguments.add(argument);
 		}
 		return allPossibleArguments;
 	}
 
-	List<List<?>> getArgumentsForAllParameters(Class<?> testTarget, Method m) {
+	List<List<?>> getArgumentsForAllParameters(Method method) {
 		List<List<?>> singleInputSets = new ArrayList<List<?>>();
-		for (Class<?> parametertype : m.getParameterTypes()) {
-			List<?> inputs = tryPrimitives(testTarget, parametertype);
+		for (Class<?> parametertype : method.getParameterTypes()) {
+			List<?> inputs = tryPrimitives(parametertype);
 
 			if (inputs == null) {
-				inputs = new ObjectArgumentFactory().getObjectArgument(testTarget, parametertype);
+				inputs = new ObjectArgumentFactory().getObjectArgument(parametertype);
 			}
 			if (inputs != null) {
 				singleInputSets.add(inputs);
@@ -69,7 +71,7 @@ public class MethodcallArgumentsFactory {
 		return singleInputSets;
 	}
 
-	private ArgumentsForSingleParameter<?> tryPrimitives(Class<?> testTarget, Class<?> parametertype) {
+	private ArgumentsForSingleParameter<?> tryPrimitives(Class<?> parametertype) {
 		ArgumentFactory<?> inputsFactory = primitivesFactories.get(parametertype);
 		if (inputsFactory != null) {
 			return inputsFactory.getInputs(testTarget);

src/main/java/nl/jssl/autounit/inputs/objects/ObjectArgumentFactory.java

@@ -2,21 +2,20 @@ package nl.jssl.autounit.inputs.objects;
 
 import java.lang.reflect.Method;
 
-import nl.jssl.autounit.inputs.ArgumentsForSingleParameter;
-import nl.jssl.autounit.inputs.MethodcallArgumentsFactory;
-
 import org.mockito.Mockito;
 import org.mockito.invocation.InvocationOnMock;
 import org.mockito.stubbing.Answer;
 
+import nl.jssl.autounit.inputs.ArgumentsForSingleParameter;
+
 /**
- * Creates arguments if they are objects. Methods that return values are populated like in regular mocking.
+ * Creates arguments if they are objects. Methods that return values are
+ * populated like in regular mocking.
  * 
  */
 public class ObjectArgumentFactory {
-	private MethodcallArgumentsFactory argumentsFactory;
 
-	public ArgumentsForSingleParameter<?> getObjectArgument(Class<?> testTarget, Class<?> parametertype) {
+	public ArgumentsForSingleParameter<?> getObjectArgument(Class<?> parametertype) {
 		ArgumentsForSingleParameter<Object> inputs = new ArgumentsForSingleParameter<Object>();
 		Object mock = createMock(parametertype);
 		inputs.add(mock);
@@ -44,12 +43,9 @@ public class ObjectArgumentFactory {
 
 	}
 
-	static boolean returnsVoid(Method m) {
-		Class<?> returnType = m.getReturnType();
+	static boolean returnsVoid(Method method) {
+		Class<?> returnType = method.getReturnType();
 		return returnType != Void.TYPE;
 	}
 
-	public void setArgumentsFactory(MethodcallArgumentsFactory argumentsFactory) {
-		this.argumentsFactory = argumentsFactory;
-	}
 }

src/main/java/nl/jssl/autounit/inputs/objects/StringArgumentFactory.java

@@ -1,25 +1,24 @@
 package nl.jssl.autounit.inputs.objects;
 
-import javassist.ClassPool;
 import nl.jssl.autounit.inputs.ArgumentsForSingleParameter;
-import nl.jssl.autounit.inputs.primtives.ArgumentFactory;
-import nl.jssl.autounit.utils.ConstantpoolReader;
+import nl.jssl.autounit.inputs.primitives.ArgumentFactory;
+import nl.jssl.autounit.util.ConstantpoolReader;
 
 /**
- * Creates Strings as arguments for a method call. Uses bytecode analysis to scan the class-under-test for "interesting"
- * strings and adds them to the argument set.
+ * Creates Strings as arguments for a method call. Uses bytecode analysis to
+ * scan the class-under-test for "interesting" strings and adds them to the
+ * argument set.
  * 
  * Also adds null to check for NPE. //is this feasible?
  */
 public class StringArgumentFactory implements ArgumentFactory<String> {
-	private static ConstantpoolReader constantpoolReader = new ConstantpoolReader(ClassPool.getDefault());
 
 	@Override
 	public ArgumentsForSingleParameter<String> getInputs(Class<?> testTarget) {
 		ArgumentsForSingleParameter<String> inputs = new ArgumentsForSingleParameter<String>();
 		inputs.add(null);
 		inputs.add("some");
-		inputs.addAll(constantpoolReader.scanStrings(testTarget));
+		inputs.addAll(new ConstantpoolReader(testTarget).scanStrings());
 		return inputs;
 	}
 

src/main/java/nl/jssl/autounit/inputs/primitives/ArgumentFactory.java

@@ -1,4 +1,4 @@
-package nl.jssl.autounit.inputs.primtives;
+package nl.jssl.autounit.inputs.primitives;
 
 import nl.jssl.autounit.inputs.ArgumentsForSingleParameter;
 

src/main/java/nl/jssl/autounit/inputs/primitives/BooleanArgumentFactory.java

@@ -1,4 +1,4 @@
-package nl.jssl.autounit.inputs.primtives;
+package nl.jssl.autounit.inputs.primitives;
 
 import nl.jssl.autounit.inputs.ArgumentsForSingleParameter;
 

src/main/java/nl/jssl/autounit/inputs/primitives/ByteArgumentFactory.java

@@ -1,4 +1,4 @@
-package nl.jssl.autounit.inputs.primtives;
+package nl.jssl.autounit.inputs.primitives;
 
 import nl.jssl.autounit.inputs.ArgumentsForSingleParameter;
 

src/main/java/nl/jssl/autounit/inputs/primitives/DoubleArgumentFactory.java

@@ -1,4 +1,4 @@
-package nl.jssl.autounit.inputs.primtives;
+package nl.jssl.autounit.inputs.primitives;
 
 import nl.jssl.autounit.inputs.ArgumentsForSingleParameter;
 

src/main/java/nl/jssl/autounit/inputs/primitives/FloatArgumentFactory.java

@@ -1,4 +1,4 @@
-package nl.jssl.autounit.inputs.primtives;
+package nl.jssl.autounit.inputs.primitives;
 
 import nl.jssl.autounit.inputs.ArgumentsForSingleParameter;
 

src/main/java/nl/jssl/autounit/inputs/primitives/IntegerArgumentFactory.java

@@ -1,4 +1,4 @@
-package nl.jssl.autounit.inputs.primtives;
+package nl.jssl.autounit.inputs.primitives;
 
 import nl.jssl.autounit.inputs.ArgumentsForSingleParameter;
 

src/main/java/nl/jssl/autounit/inputs/primitives/LongArgumentFactory.java

@@ -1,4 +1,4 @@
-package nl.jssl.autounit.inputs.primtives;
+package nl.jssl.autounit.inputs.primitives;
 
 import nl.jssl.autounit.inputs.ArgumentsForSingleParameter;
 

src/main/java/nl/jssl/autounit/results/JUnitSourceWriter.java

@@ -0,0 +1,92 @@
+package nl.jssl.autounit.results;
+
+import java.io.PrintStream;
+
+import nl.jssl.autounit.classanalyser.ClassResults;
+import nl.jssl.autounit.classanalyser.InAndOutput;
+import nl.jssl.autounit.classanalyser.MethodExecutionResults;
+
+public class JUnitSourceWriter extends ResultsWriter {
+
+	public JUnitSourceWriter(PrintStream out) {
+		super(out);
+	}
+
+	@Override
+	public void write(ClassResults results) {
+		writeTestClass(results);
+	}
+
+	private void writeTestClass(ClassResults results) {
+		out.println("package " + results.getType().getPackage().getName() + ";");
+		out.println();
+		out.println("import static org.junit.Assert.assertEquals;");
+		out.println("import org.junit.Test;");
+		out.println();
+		out.println("public class " + results.getType().getSimpleName() + "Tests {");
+		Count index = new Count(1);
+		for (MethodExecutionResults mcr : results.getMethodCallResults()) {
+			for (InAndOutput inout : mcr.getContents()) {
+				writeMethod(index, results, mcr, inout);
+			}
+		}
+
+		out.println("}");
+	}
+
+	private void writeMethod(Count index, ClassResults results, MethodExecutionResults mcr, InAndOutput inout) {
+		out.println("\t@Test");
+		out.println("\tpublic void " + mcr.getMethodName() + index.getValue() + "(){");
+		index.increment();
+		out.print("\t\tassertEquals(new " + results.getType().getSimpleName() + "()." + mcr.getMethodName() + "(");
+		int nrArguments = inout.getInput().depth();
+		int argumentCount = 1;
+		for (Object o : inout.getInput()) {
+			out.print(toString(o.getClass(), o));
+			if ((argumentCount++) < nrArguments) {
+				out.print(",");
+			}
+		}
+		out.print("), ");
+		out.print(toString(mcr.getMethodReturnType(), inout.getOutput()));
+		out.println(");");
+		out.println("\t}");
+	}
+
+	private String toString(Class<?> type, Object object) {
+		if (type.toString().equals("void")) {
+			return "void";
+		} else if (type == String.class) {
+			return "\"" + object + "\"";
+		} else if (type == Double.class || type == double.class) {
+			return object.toString() + "D";
+		} else if (type == Byte.class || type == byte.class) {
+			return "(byte)" + object.toString();
+		} else if (type == Integer.class || type == int.class) {
+			return object.toString();
+		} else if (type == Float.class || type == float.class) {
+			return object.toString() + "F";
+		} else if (type == Short.class || type == short.class) {
+			return "(short)" + object.toString();
+		} else if (type == Character.class || type == char.class) {
+			return "'" + object.toString() + "'";
+		} else
+			return object.toString();
+	}
+
+	static class Count {
+		private int value;
+
+		public Count(int value) {
+			this.value = value;
+		}
+
+		public void increment() {
+			value++;
+		}
+
+		public int getValue() {
+			return value;
+		}
+	}
+}

src/main/java/nl/jssl/autounit/results/ResultsWriter.java

@@ -0,0 +1,16 @@
+package nl.jssl.autounit.results;
+
+import java.io.PrintStream;
+
+import nl.jssl.autounit.classanalyser.ClassResults;
+
+public abstract class ResultsWriter {
+	protected PrintStream out;
+
+	public ResultsWriter(PrintStream out) {
+		super();
+		this.out = out;
+	}
+
+	public abstract void write(ClassResults classResults);
+}

src/main/java/nl/jssl/autounit/util/ConstantpoolReader.java

@@ -0,0 +1,56 @@
+package nl.jssl.autounit.util;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javassist.ClassPool;
+import javassist.CtClass;
+import javassist.NotFoundException;
+import javassist.bytecode.ConstPool;
+
+/**
+ * Reads the constantpool of a class (see jvm spec)
+ */
+public class ConstantpoolReader {
+
+	private final static ClassPool pool;
+	private final Class<?> classToRead;
+	private final List<String> strings = new ArrayList<String>();
+
+	static {
+		pool = ClassPool.getDefault();
+	}
+
+	public ConstantpoolReader(Class<?> classToRead) {
+		this.classToRead = classToRead;
+	}
+
+	public List<String> scanStrings() {
+		CtClass ctClass;
+		try {
+			ctClass = pool.get(classToRead.getName());
+			if (isScannable(ctClass)) {
+				ConstPool constPool = ctClass.getClassFile().getConstPool();
+				doScanStrings(constPool);
+			}
+			return strings;
+		} catch (NotFoundException e) {
+			throw new RuntimeException(e);
+		}
+	}
+
+	private void doScanStrings(ConstPool constPool) {
+		for (int i = 1; i < constPool.getSize(); i++) {
+			int tag = constPool.getTag(i);
+
+			if (tag == ConstPool.CONST_String) {
+				strings.add(constPool.getStringInfo(i));
+			}
+		}
+	}
+
+	private boolean isScannable(CtClass ctClass) {
+		return !ctClass.isFrozen();
+	}
+
+}

src/main/java/nl/jssl/autounit/util/LinkedList.java

@@ -0,0 +1,81 @@
+package nl.jssl.autounit.util;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+public class LinkedList implements Iterable<Object> {
+	public final Object element1;
+	public final Object element2;
+
+	public LinkedList(Object element1) {
+		this.element1 = element1;
+		this.element2 = null;
+	}
+
+	public LinkedList(Object element1, Object element2) {
+		super();
+		this.element1 = element1;
+		this.element2 = element2;
+	}
+
+	public int depth() {
+		int d = 0;
+		if (element2 != null) {
+			if (element2 instanceof LinkedList) {
+				d += 1 + ((LinkedList) element2).depth();
+			} else {
+				d += 1;
+			}
+		}
+		if (element1 != null) {
+			if (element1 instanceof LinkedList) {
+				d += 1 + ((LinkedList) element1).depth();
+			} else {
+				d += 1;
+			}
+		}
+		return d;
+	}
+
+	@Override
+	public Iterator<Object> iterator() {
+		return asList().iterator();
+	}
+
+	private List<Object> asList() {
+		List<Object> list = new ArrayList<Object>();
+		if (element1 != null) {
+			add(element1, list);
+		} else {
+			add("autounit:[NULL]", list);
+		}
+		if (element2 != null) {
+			add(element2, list);
+		}
+		return list;
+	}
+
+	private void add(Object element, List<Object> list) {
+		if (element instanceof LinkedList) {
+			LinkedList pair = (LinkedList) element;
+			add(pair.element1, list);
+			add(pair.element2, list);
+		} else {
+			list.add(element);
+		}
+	}
+
+	@Override
+	public String toString() {
+		String string = "";
+		for (Object o : this) {
+			string += o.toString() + "-";
+		}
+		return string;
+	}
+
+	public Object[] toArray() {
+		return asList().toArray();
+	}
+}

src/main/java/nl/jssl/autounit/util/MemoryClassloader.java

@@ -1,4 +1,4 @@
-package nl.jssl.autounit.utils;
+package nl.jssl.autounit.util;
 
 import java.util.HashMap;
 import java.util.Map;

src/main/java/nl/jssl/autounit/util/Permuter.java

@@ -0,0 +1,42 @@
+package nl.jssl.autounit.util;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Makes permutations of n lists of m elements, ie:
+ * 
+ * [A,B], [1,2] => [A,1], [A,2], [B,1], [B,2]
+ */
+public class Permuter {
+
+	public static List<LinkedList> permute(List<List<?>> elements) {
+		if (elements.size() >= 2) {
+			List<LinkedList> result = permutePairs(elements.remove(0), elements.remove(0));
+
+			result = permuteRest(elements, result);
+
+			return result;
+		} else {
+			throw new IllegalArgumentException("need at least 2");
+		}
+	}
+
+	private static List<LinkedList> permuteRest(List<List<?>> elements, List<LinkedList> result) {
+		for (List<?> element : elements) {
+			result = permutePairs(element, result);
+		}
+		return result;
+	}
+
+	private static List<LinkedList> permutePairs(List<?> list1, List<?> list2) {
+		List<LinkedList> pairs = new ArrayList<LinkedList>();
+		for (Object element1 : list1) {
+			for (Object element2 : list2) {
+				pairs.add(new LinkedList(element1, element2));
+			}
+		}
+		return pairs;
+	}
+
+}

src/main/java/nl/jssl/autounit/util/SilentObjectCreator.java

@@ -0,0 +1,37 @@
+package nl.jssl.autounit.util;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+
+import nl.jssl.autounit.classanalyser.AnalysisFailed;
+import sun.reflect.ReflectionFactory;
+
+/**
+ * Creates Objects from any class.
+ * 
+ * Kindly copied from http://www.javaspecialists.eu/archive/Issue175.html
+ */
+public class SilentObjectCreator {
+	public static <T> T create(Class<T> clazz) {
+		return create(clazz, Object.class);
+	}
+
+	public static <T> T create(Class<T> clazz, Class<? super T> parent) {
+		try {
+			return tryCreateInstance(clazz, parent);
+		} catch (NoSuchMethodException | InstantiationException | IllegalAccessException
+				| InvocationTargetException e) {
+			throw new AnalysisFailed("Cannot create object", e);
+		}
+	}
+
+	@SuppressWarnings("unchecked")
+	private static <T> T tryCreateInstance(Class<T> clazz, Class<? super T> parent)
+			throws NoSuchMethodException, InstantiationException, IllegalAccessException, InvocationTargetException {
+
+		ReflectionFactory reflectionFactory = ReflectionFactory.getReflectionFactory();
+		Constructor<?> objDef = parent.getDeclaredConstructor();
+		Constructor<T> intConstr = (Constructor<T>) reflectionFactory.newConstructorForSerialization(clazz, objDef);
+		return clazz.cast(intConstr.newInstance());
+	}
+}

src/main/java/nl/jssl/autounit/utils/ConstantpoolReader.java

@@ -1,46 +0,0 @@
-package nl.jssl.autounit.utils;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import javassist.ClassPool;
-import javassist.CtClass;
-import javassist.NotFoundException;
-import javassist.bytecode.ConstPool;
-
-/**
- */
-public class ConstantpoolReader {
-
-	private ClassPool pool;
-
-	public ConstantpoolReader(ClassPool pool) {
-		this.pool = pool;
-	}
-
-	public List<String> scanStrings(Class<?> target) {
-		CtClass ctClass;
-		try {
-			ctClass = pool.get(target.getName());
-			List<String> strings = new ArrayList<String>();
-			if (isScannable(ctClass)) {
-				ConstPool constPool = ctClass.getClassFile().getConstPool();
-				int size = constPool.getSize();
-				for (int i = 1; i < size; i++) {
-					int tag = constPool.getTag(i);
-					if (tag == ConstPool.CONST_String) {
-						strings.add(constPool.getStringInfo(i));
-					}
-				}
-			}
-			return strings;
-		} catch (NotFoundException e) {
-			throw new RuntimeException(e);
-		}
-	}
-
-	private boolean isScannable(CtClass ctClass) {
-		return !ctClass.isFrozen();
-	}
-
-}

src/main/java/nl/jssl/autounit/utils/Permuter.java

@@ -1,93 +0,0 @@
-package nl.jssl.autounit.utils;
-
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.List;
-
-/**
- * Makes permutations of n lists of m elements, ie:
- * 
- * [A,B], [1,2] => [A,1], [A,2], [B,1], [B,2]
- */
-public class Permuter {
-
-	public static List<Tuple> permute(List<List<?>> elements) {
-		if (elements.size() >= 2) {
-			List<Tuple> result = permutePairs(elements.remove(0), elements.remove(0));
-
-			for (List<?> element : elements) {
-				result = permutePairs(element, result);
-			}
-			return result;
-		} else {
-			throw new IllegalArgumentException("need at least 2");
-		}
-	}
-
-	private static List<Tuple> permutePairs(List<?> list1, List<?> list2) {
-		List<Tuple> pairs = new ArrayList<Tuple>();
-		for (Object element1 : list1) {
-			for (Object element2 : list2) {
-				pairs.add(new Tuple(element1, element2));
-			}
-		}
-		return pairs;
-	}
-
-	public static class Tuple implements Iterable<Object> {
-		public final Object element1;
-		public final Object element2;
-
-		public Tuple(Object element1) {
-			this.element1 = element1;
-			this.element2 = null;
-		}
-
-		public Tuple(Object element1, Object element2) {
-			super();
-			this.element1 = element1;
-			this.element2 = element2;
-		}
-
-		@Override
-		public Iterator<Object> iterator() {
-			return asList().iterator();
-		}
-
-		private List<Object> asList() {
-			List<Object> list = new ArrayList<Object>();
-			if (element1 != null) {
-				add(element1, list);
-			} else {
-				add("autounit:[NULL]", list);
-			}
-			if (element2 != null) {
-				add(element2, list);
-			}
-			return list;
-		}
-
-		private void add(Object element, List<Object> list) {
-			if (!(element instanceof Tuple)) {
-				list.add(element);
-			} else {
-				Tuple pair = (Tuple) element;
-				add(pair.element1, list);
-				add(pair.element2, list);
-			}
-		}
-
-		@Override
-		public String toString() {
-			String string = "";
-			for (Object o : this) {
-				string += o.toString() + "-";
-			}
-			return string;
-		}
-
-		public Object[] toArray() {
-			return asList().toArray();
-		}
-	}
-}

src/main/java/nl/jssl/autounit/utils/SilentObjectCreator.java

@@ -1,29 +0,0 @@
-package nl.jssl.autounit.utils;
-
-import java.lang.reflect.Constructor;
-
-import sun.reflect.ReflectionFactory;
-
-/**
- * Creates Objects from any class.
- * 
- * Kindly copied from http://www.javaspecialists.eu/archive/Issue175.html
- */
-public class SilentObjectCreator {
-	public static <T> T create(Class<T> clazz) {
-		return create(clazz, Object.class);
-	}
-
-	public static <T> T create(Class<T> clazz, Class<? super T> parent) {
-		try {
-			ReflectionFactory rf = ReflectionFactory.getReflectionFactory();
-			Constructor<?> objDef = parent.getDeclaredConstructor();
-			Constructor<T> intConstr = (Constructor<T>) rf.newConstructorForSerialization(clazz, objDef);
-			return clazz.cast(intConstr.newInstance());
-		} catch (RuntimeException e) {
-			throw e;
-		} catch (Exception e) {
-			throw new IllegalStateException("Cannot create object", e);
-		}
-	}
-}

src/main/java/nl/jssl/autounit/utils/XStreamArgumentsConverter.java

@@ -1,33 +0,0 @@
-package nl.jssl.autounit.utils;
-
-import nl.jssl.autounit.utils.Permuter.Tuple;
-
-import com.thoughtworks.xstream.converters.Converter;
-import com.thoughtworks.xstream.converters.MarshallingContext;
-import com.thoughtworks.xstream.converters.UnmarshallingContext;
-import com.thoughtworks.xstream.io.HierarchicalStreamReader;
-import com.thoughtworks.xstream.io.HierarchicalStreamWriter;
-
-public class XStreamArgumentsConverter implements Converter {
-
-	@SuppressWarnings("rawtypes")
-	public boolean canConvert(Class clazz) {
-		return (clazz == Tuple.class);
-	}
-
-	public void marshal(Object value, HierarchicalStreamWriter writer, MarshallingContext context) {
-		Tuple arguments = (Tuple) value;
-		int index = 1;
-		for (Object arg : arguments) {
-			writer.startNode("arg" + index);
-			writer.setValue(arg.toString());
-			writer.endNode();
-		}
-
-	}
-
-	public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {
-		return null;
-	}
-
-}

src/test/java/nl/jssl/autounit/PrimtiveTypeTests.java

@@ -1,66 +0,0 @@
-package nl.jssl.autounit;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
-import java.lang.reflect.Method;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-
-import nl.jssl.autounit.testclasses.BooleanArguments;
-import nl.jssl.autounit.testclasses.ByteArguments;
-import nl.jssl.autounit.testclasses.FloatArguments;
-import nl.jssl.autounit.testclasses.IntArguments;
-
-import org.junit.Test;
-
-public class PrimtiveTypeTests {
-	@Test
-	public void testGetPublicMethods() throws NoSuchMethodException, SecurityException {
-		List<Method> publicMethods = new Recorder(IntArguments.class).getPublicMethods();
-
-		assertEquals(2, publicMethods.size());
-	}
-
-	@Test
-	public void testIntegerArgument() {
-		Map<String, MethodCallResults> results = new AutoTester().record(IntArguments.class);
-		Set<String> keys = results.keySet();
-		assertTrue(keys.contains("public java.lang.String evenOrUneven(int arg1,int arg2)"));
-		MethodCallResults mcr = results.values().iterator().next();
-		System.out.println(mcr.getCoverageResult().getLineCounter().getMissedCount() + " missed lines");
-		System.out.println(mcr.getReport());
-	}
-
-	@Test
-	public void testBooleanArgument() {
-		Map<String, MethodCallResults> results = new AutoTester().record(BooleanArguments.class);
-		Set<String> keys = results.keySet();
-		assertTrue(keys.contains("public java.lang.String getText(boolean arg1,boolean arg2)"));
-		MethodCallResults mcr = results.values().iterator().next();
-		System.out.println(mcr.getCoverageResult().getLineCounter().getMissedCount() + " missed lines");
-		System.out.println(mcr.getReport());
-	}
-
-	@Test
-	public void testByteArgument() {
-		Map<String, MethodCallResults> results = new AutoTester().record(ByteArguments.class);
-		Set<String> keys = results.keySet();
-		assertTrue(keys.contains("public int getDouble(byte arg1)"));
-		MethodCallResults mcr = results.values().iterator().next();
-		System.out.println(mcr.getCoverageResult().getLineCounter().getMissedCount() + " missed lines");
-		System.out.println(mcr.getReport());
-	}
-
-	@Test
-	public void testFloatArgument() {
-		Map<String, MethodCallResults> results = new AutoTester().record(FloatArguments.class);
-		Set<String> keys = results.keySet();
-		assertTrue(keys.contains("public int round(float arg1)"));
-		MethodCallResults mcr = results.values().iterator().next();
-		System.out.println(mcr.getCoverageResult().getLineCounter().getMissedCount() + " missed lines");
-		System.out.println(mcr.getReport());
-	}
-
-}

src/test/java/nl/jssl/autounit/classanalyser/PrimtiveTypeTests.java

@@ -0,0 +1,56 @@
+package nl.jssl.autounit.classanalyser;
+
+import static org.junit.Assert.assertEquals;
+
+import java.lang.reflect.Method;
+import java.util.Iterator;
+import java.util.List;
+import java.util.TreeSet;
+
+import org.junit.Test;
+
+import nl.jssl.autounit.testclasses.BooleanArguments;
+import nl.jssl.autounit.testclasses.ByteArguments;
+import nl.jssl.autounit.testclasses.FloatArguments;
+import nl.jssl.autounit.testclasses.IntArguments;
+
+public class PrimtiveTypeTests {
+	@Test
+	public void testGetPublicMethods() throws NoSuchMethodException, SecurityException {
+		List<Method> publicMethods = new ClassAnalyser<>(IntArguments.class).getPublicMethods();
+
+		assertEquals(2, publicMethods.size());
+	}
+
+	@Test
+	public void testIntegerArgument() {
+		Iterator<MethodExecutionResults> methodCallResults = new TreeSet<>(
+				new ClassAnalyser<>(IntArguments.class).analyseAndGetResults().getMethodCallResults()).iterator();
+
+		assertEquals("public java.lang.String evenOrUneven(int arg1,int arg2)",
+				methodCallResults.next().getMethodSignature());
+		assertEquals("public int randomOther(int arg1)", methodCallResults.next().getMethodSignature());
+	}
+
+	@Test
+	public void testBooleanArgument() {
+		MethodExecutionResults mcr = new ClassAnalyser<>(BooleanArguments.class).analyseAndGetResults()
+				.getMethodCallResults().get(0);
+		assertEquals(mcr.getMethodSignature(), "public java.lang.String getText(boolean arg1,boolean arg2)");
+	}
+
+	@Test
+	public void testByteArgument() {
+		MethodExecutionResults mcr = new ClassAnalyser<>(ByteArguments.class).analyseAndGetResults().getMethodCallResults()
+				.get(0);
+		assertEquals(mcr.getMethodSignature(), "public int getDouble(byte arg1)");
+	}
+
+	@Test
+	public void testFloatArgument() {
+		MethodExecutionResults mcr = new ClassAnalyser<>(FloatArguments.class).analyseAndGetResults().getMethodCallResults()
+				.get(0);
+		assertEquals(mcr.getMethodSignature(), "public int round(float arg1)");
+	}
+
+}

src/test/java/nl/jssl/autounit/classanalyser/StringTypeTests.java

@@ -1,23 +1,22 @@
-package nl.jssl.autounit;
+package nl.jssl.autounit.classanalyser;
 
 import static org.junit.Assert.assertEquals;
 
-import java.util.Map;
-import java.util.Set;
-
-import nl.jssl.autounit.testclasses.StringArguments;
+import java.util.List;
 
 import org.junit.Test;
 
+import nl.jssl.autounit.testclasses.StringArguments;
+
 public class StringTypeTests {
 
 	@Test
 	public void testStringArgumentShouldBeTjeempie() {
-		Map<String, MethodCallResults> results = new AutoTester().record(StringArguments.class);
-		Set<String> keys = results.keySet();
-		String methodSignature = keys.iterator().next();
+		List<MethodExecutionResults> results = new ClassAnalyser<>(StringArguments.class).analyseAndGetResults()
+				.getMethodCallResults();
+		MethodExecutionResults mcr = results.get(0);
+		String methodSignature = mcr.getMethodSignature();
 		assertEquals("public boolean getBar(java.lang.String arg1)", methodSignature);
-		MethodCallResults mcr = results.values().iterator().next();
 		System.out.println(mcr.getCoverageResult().getLineCounter().getMissedCount() + " missed lines");
 		System.out.println(mcr.getReport());
 	}
@@ -28,7 +27,8 @@ public class StringTypeTests {
 	// Map<String, MethodCallResults> results = new
 	// AutoTester().record(MethodSignatureMaker.class);
 	// Set<String> keys = results.keySet();
-	// assertTrue(keys.contains("public java.lang.String getMethodSignature(java.lang.reflect.Method arg1)"));
+	// assertTrue(keys.contains("public java.lang.String
+	// getMethodSignature(java.lang.reflect.Method arg1)"));
 	// MethodCallResults mcr = results.values().iterator().next();
 	// System.out.println(mcr.getCoverageResult().getLineCounter().getMissedCount()
 	// + " missed lines");

src/test/java/nl/jssl/autounit/inputs/objects/JavaBeanTests.java

@@ -1,23 +1,34 @@
 package nl.jssl.autounit.inputs.objects;
 
-import java.util.Map;
-import java.util.Set;
+import static org.junit.Assert.assertEquals;
 
-import nl.jssl.autounit.AutoTester;
-import nl.jssl.autounit.MethodCallResults;
-import nl.jssl.autounit.testclasses.SomeBean;
+import java.util.Iterator;
+import java.util.TreeSet;
 
-import org.junit.Assert;
 import org.junit.Test;
 
+import nl.jssl.autounit.JUnitTestCreator;
+import nl.jssl.autounit.classanalyser.ClassAnalyser;
+import nl.jssl.autounit.classanalyser.MethodExecutionResults;
+import nl.jssl.autounit.testclasses.SomeBean;
+
 public class JavaBeanTests {
 	@Test
 	public void testJavaBeanArgument() {
-		Map<String, MethodCallResults> results = new AutoTester().record(SomeBean.class);
-		Set<String> keys = results.keySet();
-		Assert.assertTrue(keys.contains("public void setFoo(java.lang.String arg1)"));
-		MethodCallResults mcr = results.values().iterator().next();
-		System.out.println(mcr.getCoverageResult().getLineCounter().getMissedCount() + " missed lines");
-		System.out.println(mcr.getReport());
+		Iterator<MethodExecutionResults> results = getSortedAnalysisResults().iterator();
+
+		assertEquals("public int getBar()", results.next().getMethodSignature());
+		assertEquals("public java.lang.String getFoo()", results.next().getMethodSignature());
+		assertEquals("public void setBar(int arg1)", results.next().getMethodSignature());
+		assertEquals("public void setFoo(java.lang.String arg1)", results.next().getMethodSignature());
+	}
+
+	private TreeSet<MethodExecutionResults> getSortedAnalysisResults() {
+		return new TreeSet<>(new ClassAnalyser<>(SomeBean.class).analyseAndGetResults().getMethodCallResults());
+	}
+
+	@Test
+	public void getUnittest() {
+		new JUnitTestCreator<>(SomeBean.class).create();
 	}
 }

src/test/java/nl/jssl/autounit/inputs/objects/ObjectArgumentFactoryTests.java

@@ -1,5 +1,6 @@
 package nl.jssl.autounit.inputs.objects;
 
+import static nl.jssl.autounit.inputs.objects.ObjectArgumentFactory.returnsVoid;
 import static org.junit.Assert.assertEquals;
 
 import java.lang.reflect.Method;
@@ -9,12 +10,11 @@ import org.junit.Test;
 public class ObjectArgumentFactoryTests {
 	@Test
 	public void testVoidReturn() throws NoSuchMethodException, SecurityException {
-		ObjectArgumentFactory o = new ObjectArgumentFactory();
 		Method testVoidReturnMethod = ObjectArgumentFactoryTests.class.getMethod("testVoidReturn", new Class<?>[] {});
-		assertEquals(false, o.returnsVoid(testVoidReturnMethod));
+		assertEquals(false, returnsVoid(testVoidReturnMethod));
 
 		Method getBarMethod = ObjectArgumentFactoryTests.class.getMethod("getBar", new Class<?>[] {});
-		assertEquals(true, o.returnsVoid(getBarMethod));
+		assertEquals(true, returnsVoid(getBarMethod));
 	}
 
 	public String getBar() {

src/test/java/nl/jssl/autounit/inspect/ConstantpoolReaderTest.java

@@ -2,20 +2,17 @@ package nl.jssl.autounit.inspect;
 
 import java.util.List;
 
-import javassist.ClassPool;
+import org.junit.Test;
+
 import javassist.NotFoundException;
 import nl.jssl.autounit.testclasses.IntArguments;
-import nl.jssl.autounit.utils.ConstantpoolReader;
-
-import org.junit.Test;
+import nl.jssl.autounit.util.ConstantpoolReader;
 
 public class ConstantpoolReaderTest {
 	@Test
 	public void test() throws NotFoundException {
-		ClassPool classPool = new ClassPool();
-		classPool.appendClassPath("c:\\workspaces\\autounit\\autounit\\bin");
-		ConstantpoolReader reader = new ConstantpoolReader(classPool);
-		List<String> strings = reader.scanStrings(IntArguments.class);
+		ConstantpoolReader reader = new ConstantpoolReader(IntArguments.class);
+		List<String> strings = reader.scanStrings();
 		for (String string : strings) {
 			System.out.println(string);
 		}

src/test/java/nl/jssl/autounit/util/PairTests.java

@@ -0,0 +1,25 @@
+package nl.jssl.autounit.util;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+public class PairTests {
+	@Test
+	public void testDepth1() {
+		LinkedList p = new LinkedList("1");
+		assertEquals(1, p.depth());
+	}
+
+	@Test
+	public void testDepth2() {
+		LinkedList p = new LinkedList(new LinkedList("1"));
+		assertEquals(2, p.depth());
+	}
+
+	@Test
+	public void testDepth3() {
+		LinkedList p = new LinkedList(new LinkedList(new LinkedList("1")));
+		assertEquals(3, p.depth());
+	}
+}

src/test/java/nl/jssl/autounit/util/PermuterTests.java

@@ -5,9 +5,6 @@ import static org.junit.Assert.assertEquals;
 import java.util.ArrayList;
 import java.util.List;
 
-import nl.jssl.autounit.utils.Permuter;
-import nl.jssl.autounit.utils.Permuter.Tuple;
-
 import org.junit.Test;
 
 public class PermuterTests {
@@ -16,13 +13,16 @@ public class PermuterTests {
 		List<Integer> integers = new ArrayList<Integer>();
 		integers.add(1);
 		integers.add(2);
+
 		List<String> strings = new ArrayList<String>();
 		strings.add("A");
 		strings.add("B");
+
 		List<List<?>> outer = new ArrayList<List<?>>();
 		outer.add(integers);
 		outer.add(strings);
-		List<Tuple> permuted = Permuter.permute(outer);
+		List<LinkedList> permuted = Permuter.permute(outer);
+
 		assertEquals("1-A-", permuted.get(0).toString());
 		assertEquals("1-B-", permuted.get(1).toString());
 		assertEquals("2-A-", permuted.get(2).toString());
@@ -46,7 +46,7 @@ public class PermuterTests {
 		outer.add(strings);
 		outer.add(vogons);
 
-		List<Tuple> permuted = Permuter.permute(outer);
+		List<LinkedList> permuted = Permuter.permute(outer);
 		assertEquals("Vogon Jeltz-1-A-", permuted.get(0).toString());
 		assertEquals("Vogon Jeltz-1-B-", permuted.get(1).toString());
 		assertEquals("Vogon Jeltz-2-A-", permuted.get(2).toString());

src/test/testclasses/nl/jssl/autounit/testclasses/MyMethod.java

@@ -6,7 +6,7 @@ public class MyMethod {
 		return 0;
 	}
 
-	public Class getReturnType() {
+	public Class<?> getReturnType() {
 		return Void.class;
 	}