add a test for the initialization of the game info structure

src/main/c/Georg/tictactoe.c

@@ -16,3 +16,9 @@ char* getRulesMessage(){
            "Mit dem Befehl \"start\" startest du das Spiel"
            "Mit dem Befehl \"rules\" kannst du diese Nachricht erneut aufrufen.";
 }
+
+struct ticTacToe createTicTacToe() {
+    struct ticTacToe newGame;
+    newGame.currentState = 0;
+    return newGame;
+}

src/main/c/Georg/tictactoe.h

@@ -7,5 +7,6 @@ struct ticTacToe{
 
 char* getWelcomeMessage();
 char* getRulesMessage();
+struct ticTacToe createTicTacToe();
 
 #endif //TICTACTOE_H

src/test/c/Georg/test_tictactoe.c

@@ -37,4 +37,16 @@ void test_rules_message(void){
 
     // assert
     TEST_ASSERT_EQUAL_STRING(expectedMessage, message);
+}
+
+void test_initial_state(void){
+    // arrange
+    struct ticTacToe newGame;
+    int expectedState = 0;
+
+    // act
+    newGame = createTicTacToe();
+
+    // assert
+    TEST_ASSERT_EQUAL_INT( expectedState, newGame.currentState );
 }