Issue #71: MainFrameTest.java update

...ic_test/GUI/GuiTest/src/main/java/gui/test/main/Main.java

...UI/GuiTest/src/test/java/gui/test/main/MainFrameTest.java

..._test/GUI/GuiTest/target/classes/gui/test/main/Main.class

...est/target/test-classes/gui/test/main/MainFrameTest.class