void cardImplementationTests(void) {
    char letter='a';
    int value=1;
    Card card = initCard(letter,value);
    printf("Test #1: initCard\n");
    assert(card != NULL);
    printf(" Passed!\n");
    card = initCard('a',1);
    printf("Test #2: initCard\n");
    assert(card->letter = letter);
    printf(" Passed!\n");
    printf("Test #3: initCard\n");
    assert(card->value = value);
    printf(" Passed!\n");
    printf("Test #4: setLetter\n");
    setLetter(card,'a');
    assert(card->letter = letter);
    printf(" Passed!\n");
    printf("Test #5: setValue\n");
    setValue(card,1);
    assert(card->value = value);
    printf(" Passed!\n");
    printf("Test #6: getLetter\n");
    getLetter(card);
    assert(card->letter);
    printf(" Passed!\n");
    printf("Test #7: getValue\n");
    getValue(card);
    assert(card->value);
    printf(" Passed!\n");
    printf("Test #8: initCard\n");
    printf(" Passed!\n");
    printf("Test #9: initCard\n");
    printf(" Passed!\n");
    printf("Test #10: initCard\n");
    printf(" Passed!\n");
}