diff --git a/bin/.gitignore b/bin/.gitignore
new file mode 100644
index 0000000..998e0dd
--- /dev/null
+++ b/bin/.gitignore
@@ -0,0 +1 @@
+/nl
diff --git a/nl.jssl.autounit.testclasses.BooleanArguments.xml b/nl.jssl.autounit.testclasses.BooleanArguments.xml
new file mode 100644
index 0000000..0b71359
--- /dev/null
+++ b/nl.jssl.autounit.testclasses.BooleanArguments.xml
@@ -0,0 +1,16 @@
+<map>
+  <entry>
+    <string>public java.lang.String getText(boolean arg1,boolean arg2)</string>
+    <results>
+      <contents>
+        <case>
+          <input class="args">
+            <arg1>false</arg1>
+            <arg1>false</arg1>
+          </input>
+          <output class="string">falsefalse</output>
+        </case>
+      </contents>
+    </results>
+  </entry>
+</map>
\ No newline at end of file
diff --git a/nl.jssl.autounit.testclasses.ByteArguments.xml b/nl.jssl.autounit.testclasses.ByteArguments.xml
new file mode 100644
index 0000000..8d8158b
--- /dev/null
+++ b/nl.jssl.autounit.testclasses.ByteArguments.xml
@@ -0,0 +1,21 @@
+<map>
+  <entry>
+    <string>public int getDouble(byte arg1)</string>
+    <results>
+      <contents>
+        <case>
+          <input class="args">
+            <arg1>-128</arg1>
+          </input>
+          <output class="int">-256</output>
+        </case>
+        <case>
+          <input class="args">
+            <arg1>0</arg1>
+          </input>
+          <output class="int">11</output>
+        </case>
+      </contents>
+    </results>
+  </entry>
+</map>
\ No newline at end of file
diff --git a/nl.jssl.autounit.testclasses.FloatArguments.xml b/nl.jssl.autounit.testclasses.FloatArguments.xml
new file mode 100644
index 0000000..7cd0e0b
--- /dev/null
+++ b/nl.jssl.autounit.testclasses.FloatArguments.xml
@@ -0,0 +1,15 @@
+<map>
+  <entry>
+    <string>public int round(float arg1)</string>
+    <results>
+      <contents>
+        <case>
+          <input class="args">
+            <arg1>-7.5912475E37</arg1>
+          </input>
+          <output class="int">-2147483648</output>
+        </case>
+      </contents>
+    </results>
+  </entry>
+</map>
\ No newline at end of file
diff --git a/nl.jssl.autounit.testclasses.IntArguments.xml b/nl.jssl.autounit.testclasses.IntArguments.xml
new file mode 100644
index 0000000..35f1a54
--- /dev/null
+++ b/nl.jssl.autounit.testclasses.IntArguments.xml
@@ -0,0 +1,34 @@
+<map>
+  <entry>
+    <string>public java.lang.String evenOrUneven(int arg1)</string>
+    <results>
+      <contents>
+        <case>
+          <input class="args">
+            <arg1>-819817314</arg1>
+          </input>
+          <output class="string">even</output>
+        </case>
+        <case>
+          <input class="args">
+            <arg1>-916902647</arg1>
+          </input>
+          <output class="string">uneven</output>
+        </case>
+      </contents>
+    </results>
+  </entry>
+  <entry>
+    <string>public int randomOther(int arg1)</string>
+    <results>
+      <contents>
+        <case>
+          <input class="args">
+            <arg1>-1762850486</arg1>
+          </input>
+          <output class="int">0</output>
+        </case>
+      </contents>
+    </results>
+  </entry>
+</map>
\ No newline at end of file
diff --git a/src/nl/jssl/autounit/utils/MemoryClassloader.java b/src/nl/jssl/autounit/utils/MemoryClassloader.java
new file mode 100644
index 0000000..08d9f06
--- /dev/null
+++ b/src/nl/jssl/autounit/utils/MemoryClassloader.java
@@ -0,0 +1,32 @@
+package nl.jssl.autounit.utils;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class MemoryClassloader extends ClassLoader {
+
+	private final Map<String, byte[]> definitions = new HashMap<String, byte[]>();
+
+	/**
+	 * Add a in-memory representation of a class.
+	 * 
+	 * @param name
+	 *            name of the class
+	 * @param bytes
+	 *            class definition
+	 */
+	public void addDefinition(final String name, final byte[] bytes) {
+		definitions.put(name, bytes);
+	}
+
+	@Override
+	protected Class<?> loadClass(final String name, final boolean resolve)
+			throws ClassNotFoundException {
+		final byte[] bytes = definitions.get(name);
+		if (bytes != null) {
+			return defineClass(name, bytes, 0, bytes.length);
+		}
+		return super.loadClass(name, resolve);
+	}
+
+}
\ No newline at end of file