diff --git a/test/plugindevelopment/TypeInsertTests/LambdaTest23.jav b/test/plugindevelopment/TypeInsertTests/LambdaTest23.jav
new file mode 100644
index 00000000..1d4b28d8
--- /dev/null
+++ b/test/plugindevelopment/TypeInsertTests/LambdaTest23.jav
@@ -0,0 +1,14 @@
+import java.util.Vector;
+
+class Matrix extends Vector<Vector<Integer>> {
+
+	Matrix mul(m){
+		ret;
+		ret = new Matrix();
+		i;
+		i = this.size();
+		
+		return ret;
+	}
+	
+}
\ No newline at end of file
diff --git a/test/plugindevelopment/TypeInsertTests/LambdaTest23.java b/test/plugindevelopment/TypeInsertTests/LambdaTest23.java
new file mode 100644
index 00000000..e406551f
--- /dev/null
+++ b/test/plugindevelopment/TypeInsertTests/LambdaTest23.java
@@ -0,0 +1,16 @@
+package plugindevelopment.TypeInsertTests;
+
+import java.util.Vector;
+
+import org.junit.Test;
+
+public class LambdaTest23 {
+	private static final String TEST_FILE = "LambdaTest23.jav";
+	
+	@Test
+	public void run(){
+		Vector<String> mustContain = new Vector<String>();
+		mustContain.add("Matrix ret");
+		MultipleTypesInsertTester.testSingleInsert(this.TEST_FILE, mustContain);
+	}
+}