def test_11():
assert countAbc("aaa") == 0
def test_9():
assert countAbc("aba") == 1
def test_10():
assert countAbc("aca") == 0
def test_7():
assert countAbc("") == 0
def test_8():
assert countAbc("ab") == 0
def test_5():
assert countAbc("aaabc") == 1
def test_6():
assert countAbc("hello") == 0
def test_4():
assert countAbc("abxbc") == 0
def test_3():
assert countAbc("ababc") == 2
def test_2():
assert countAbc("abaxxaba") == 2
def test_1():
assert countAbc("abcxxabc") == 2
def test_0():
assert countAbc("abc") == 1
