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diff --git a/webglFramework/Thirdparty/three.js-master/test/unit/editor/TestNegativeCases.js b/webglFramework/Thirdparty/three.js-master/test/unit/editor/TestNegativeCases.js
new file mode 100644
index 0000000..157ab8d
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+++ b/webglFramework/Thirdparty/three.js-master/test/unit/editor/TestNegativeCases.js
@@ -0,0 +1,55 @@
+/**
+ * @author lxxxvi / https://github.com/lxxxvi
+ * Developed as part of a project at University of Applied Sciences and Arts Northwestern Switzerland (www.fhnw.ch)
+ */
+
+QUnit.module( "NegativeCases" );
+
+QUnit.test( "Test unwanted situations ", function( assert ) {
+
+	var editor = new Editor();
+
+	// illegal
+	editor.undo();
+	assert.ok( editor.history.undos.length == 0, "OK, (illegal) undo did not affect the undo history" );
+	assert.ok( editor.history.redos.length == 0, "OK, (illegal) undo did not affect the redo history" );
+
+	// illegal
+	editor.redo();
+	assert.ok( editor.history.undos.length == 0, "OK, (illegal) redo did not affect the undo history" );
+	assert.ok( editor.history.redos.length == 0, "OK, (illegal) redo did not affect the redo history" );
+
+
+	var box = aBox();
+	var cmd = new AddObjectCommand( box );
+	cmd.updatable = false;
+	editor.execute( cmd );
+
+	assert.ok( editor.history.undos.length == 1, "OK, execute changed undo history" );
+	assert.ok( editor.history.redos.length == 0, "OK, execute did not change redo history" );
+
+	// illegal
+	editor.redo();
+	assert.ok( editor.history.undos.length == 1, "OK, (illegal) redo did not affect the undo history" );
+	assert.ok( editor.history.redos.length == 0, "OK, (illegal) redo did not affect the redo history" );
+
+
+	editor.undo();
+	assert.ok( editor.history.undos.length == 0, "OK, undo changed the undo history" );
+	assert.ok( editor.history.redos.length == 1, "OK, undo changed the redo history" );
+
+	// illegal
+	editor.undo();
+	assert.ok( editor.history.undos.length == 0, "OK, (illegal) undo did not affect the undo history" );
+	assert.ok( editor.history.redos.length == 1, "OK, (illegal) undo did not affect the redo history" );
+
+	editor.redo();
+	assert.ok( editor.history.undos.length == 1, "OK, redo changed the undo history" );
+	assert.ok( editor.history.redos.length == 0, "OK, undo changed the redo history" );
+
+	// illegal
+	editor.redo();
+	assert.ok( editor.history.undos.length == 1, "OK, (illegal) did not affect the undo history" );
+	assert.ok( editor.history.redos.length == 0, "OK, (illegal) did not affect the redo history" );
+
+} );