Call the methods for testing

src/test/java/Gui/GameGuiTest.java

@@ -0,0 +1,27 @@
+package Gui;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import java.awt.GridBagConstraints;
+import java.awt.Insets;
+
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestInstance;
+import org.junit.jupiter.api.TestInstance.Lifecycle;
+
+@TestInstance(Lifecycle.PER_CLASS)
+class GameGuiTest {
+    GameGui gameGui = new GameGui();
+    gui Gui = new gui();
+
+	@BeforeAll
+	void setUp(){
+	    Gui.StartMainMenu();
+	    gameGui.createGui();
+	}
+
+
+
+}

target/maven-status/maven-compiler-plugin/testCompile/default-testCompile/inputFiles.lst

@@ -1,2 +1,3 @@
 C:\Users\Leon\MiniGameProject\src\test\java\Gui\guiTest.java
+C:\Users\Leon\MiniGameProject\src\test\java\Gui\GameGuiTest.java
 C:\Users\Leon\MiniGameProject\src\test\java\game\runGameTest.java