def test_is_valid_interval():
"""
Check that is_valid_interval works correctly for legal interval values
"""
assert getter.is_valid_interval(1)
assert getter.is_valid_interval(2)
assert getter.is_valid_interval(12)
def test_invalid_index():
"""
Check that is_valid_index works correctly for negative integers and
floats
"""
assert not getter.is_valid_interval(-4)
assert not getter.is_valid_interval(5.0)
def test_is_valid_interval():
"""
Check that is_valid_interval works correctly for legal interval values
"""
assert getter.is_valid_interval(1)
assert getter.is_valid_interval(2)
assert getter.is_valid_interval(12)
def test_invalid_index():
"""
Check that is_valid_index works correctly for negative integers and
floats
"""
assert not getter.is_valid_interval(-4)
assert not getter.is_valid_interval(5.0)
def test_invalid_interval():
"""
Check that is_valid_interval works correctly for illegal interval values
"""
assert not getter.is_valid_interval(0)
assert not getter.is_valid_interval(13)
assert not getter.is_valid_interval(5.0)
assert not getter.is_valid_interval(-4)
def test_invalid_interval():
"""
Check that is_valid_interval works correctly for illegal interval values
"""
assert not getter.is_valid_interval(0)
assert not getter.is_valid_interval(13)
assert not getter.is_valid_interval(5.0)
assert not getter.is_valid_interval(-4)