def test_with_one_comma():
actual = convert_to_int("2,081")
# Complete the assert statement
assert actual == 2081, "Expected: 2081, Actual: {0}".format(actual)
def test_with_no_comma():
actual = convert_to_int("756")
# Complete the assert statement
assert actual == 756, "Expected: 756, Actual: {0}".format(actual)
def test_on_float_valued_string():
actual = convert_to_int("23,816.92")
# Complete the assert statement
assert actual is None, "Expected: None, Actual: {0}".format(actual)
def test_on_string_with_incorrectly_placed_comma():
# Assign to the actual return value for the argument "12,72,891"
actual = convert_to_int("12,72,891")
assert actual is None, "Expected: None, Actual: {0}".format(actual)
def test_on_string_with_missing_comma():
actual = convert_to_int("178100,301")
assert actual is None, "Expected: None, Actual: {0}".format(actual)
def test_with_two_commas():
actual = convert_to_int("1,034,891")
# Complete the assert statement
assert actual == 1034891, "Expected: 1034891, Actual: {0}".format(actual)