modified the command functions for testing purpose

src/main/c/Georg/tictactoe.c

@@ -63,12 +63,18 @@ commandFunction getCommandById( struct command* commands, int id ){
     return result;
 }
 
-int startMenu(){
+int startMenu( int code ){
+    if( code == 1 ){ // command test
+        return 1;
+    }
 
-    return 1;
+    return 0;
 }
 
-int startGame(){
+int startGame( int code ){
+    if( code == 1 ){ // command test
+        return 1;
+    }
 
-    return 1;
+    return 0;
 }

src/main/c/Georg/tictactoe.h

@@ -22,7 +22,7 @@ struct command* createCommands();
 
 /* commands */
 commandFunction getCommandById(struct command* commands, int id);
-int startMenu();
-int startGame();
+int startMenu( int code );
+int startGame( int code );
 
 #endif //TICTACTOE_H

src/test/c/Georg/test_tictactoe.c

@@ -84,7 +84,7 @@ void test_createCommandlist(void){
 
     size_t arraySize = sizeof(*commands) / sizeof(commands[0]);
     for (size_t i = 0; i < arraySize; i++) {
-        TEST_ASSERT_EQUAL_INT( 1, commands[i].fun() );
+        TEST_ASSERT_EQUAL_INT( 1, commands[i].fun(1) );
     }
 }