def test_raise_value_error():
"""Test for negative time value (raises a ValueError)."""
utils.write_time(-1)
def test_convert_3659():
"""Convert 3659."""
assert utils.write_time(3659) == '01h:00m:59s'
def test_convert_3661():
"""Convert 3661."""
assert utils.write_time(3661) == '01h:01m:01s'
def test_convert_3600():
"""Convert 3600."""
assert utils.write_time(3600) == '01h:00m:00s'
def test_convert_2100():
"""Convert 2100."""
assert utils.write_time(2100) == '35m:00s'
def test_convert_0():
"""Convert 0."""
assert utils.write_time(0) == '00s'
def test_convert_wrong_data_type():
"""Convert None."""
assert utils.write_time('string')
assert utils.write_time((1, 2))
assert utils.write_time([1, 2])
assert utils.write_time({'time': 25})
def test_convert_none():
"""Convert None."""
assert utils.write_time(None)
