Testing

Assertion Utils

class CommonAssertionUtils

Bases: object

Utilities for used to assert within tests. They can be used outside tests if need be.

static are_equal(value_one, value_two, message='')

Assert two values are equal to each other.

If the values are both collections, then the values contained within will be asserted to be equal.

Note

The order of the values in each collection is asserted.

Parameters:
  • value_one (Any) – The first value.
  • value_two (Any) – The second value.
  • message (str, optional) – A custom message to include when the assertion fails. Default is Empty String.
Returns:

True, if the assertion succeeds.

Return type:

bool

Raises:

AssertionError – when the assertion fails.

static are_similar(value_one, value_two, message='')

Assert two values are similar.

If the values are both collections, then the values contained within will be asserted to be similar.

Note

The order of the values in each collection is ignored.

Parameters:
  • value_one (Any) – The first value.
  • value_two (Any) – The second value.
  • message (str, optional) – A custom message to include when the assertion fails. Default is Empty String.
Returns:

True, if the assertion succeeds.

Return type:

bool

Raises:

AssertionError – when the assertion fails.

static contains(collection, value, message='')

Assert a value is contained within a collection

Parameters:
  • collection (Union[Tuple[Any], List[Any]]) – The collection being checked (Any collection that works with len() can be used)
  • value (Any) – The value being located.
  • message (str, optional) – A custom message to include when the assertion fails. Default is Empty String.
Returns:

True if the value is contained within the collection.

Return type:

bool

Raises:

AssertionError – when the assertion fails.

static has_length(value, expected_length, message='')

Assert a collection has the specified length.

Parameters:
  • value (Union[Tuple[Any], List[Any]]) – The collection being asserted. (Any collection that works with len() can be used)
  • expected_length (int) – The length expected of the collection.
  • message (str, optional) – A custom message to include when the assertion fails. Default is Empty String.
Returns:

True if the length matches.

Return type:

bool

Raises:

AssertionError – when the assertion fails.

static is_false(value, message='')

Assert value is False.

Parameters:
  • value (bool) – The value being asserted.
  • message (str, optional) – A custom message to include when the assertion fails.
Returns:

True if the value is False.

Return type:

bool

Raises:

AssertionError – when the assertion fails.

static is_true(value, message='')

Assert a value is True.

Parameters:
  • value (bool) – The value being asserted.
  • message (str, optional) – A custom message to include when the assertion fails. Default is Empty String.
Returns:

True if the value is True.

Return type:

bool

Raises:

AssertionError – when the assertion fails.

static list_contents_are_same(list_one, list_two, message='')

Assert the values contained within two collections are the same.

Note

The order of the values in each collection is ignored.

Parameters:
  • list_one (Union[Tuple[Any], List[Any]]) – The first value. (Can be any collection type)
  • list_two (Union[Tuple[Any], List[Any]]) – The second value. (Can be any collection type)
  • message (str, optional) – A custom message to include when the assertion fails. Default is Empty String.
Returns:

True, if the assertion succeeds.

Return type:

bool

Raises:

AssertionError – when the assertion fails.

static lists_are_equal(list_one, list_two, message='')

Assert two collections contain tbe exact same values.

Note

The order of the values in each collection will be asserted.

Parameters:
  • list_one (Union[Tuple[Any], List[Any]]) – The first value. (Can be any collection type)
  • list_two (Union[Tuple[Any], List[Any]]) – The second value. (Can be any collection type)
  • message (str, optional) – A custom message to include when the assertion fails. Default is Empty String.
Returns:

True, if the assertion succeeds.

Return type:

bool

Raises:

AssertionError – when the assertion fails.

static not_throws(callback, message='')

Assert calling a function will not raise an Exception.

Parameters:
  • callback (Callable[.., Any]) – The function to invoke.
  • message (str, optional) – A custom message to include when the assertion fails. Default is Empty String.
Returns:

True, if the assertion was successful.

Return type:

bool

Raises:

AssertionError – when the assertion fails.

static throws(callback, message='')

Assert calling a function will raise an Exception.

Parameters:
  • callback (Callable[.., Any]) – The function to invoke.
  • message (str, optional) – A custom message to include when the assertion fails. Default is Empty String.
Returns:

The exception that was thrown.

Return type:

Exception

Raises:

AssertionError – when the assertion fails.

Test Service

class CommonTestService

Bases: sims4communitylib.services.common_service.CommonService

Use to register and run python tests.

Example Test Registration:
 
@CommonTestService.test_class('mod_name')
class TestClass:
    # Important that it is a static method, you won't get a cls or self value passed in, so don't expect one!
    @staticmethod
    @CommonTestService.test(1, 1, expected_value=2)
    @CommonTestService.test(2, 1, expected_value=3)
    def example_add_test(one: int, two: int, expected_value: int=24):
        result = one + two
        CommonAssertionUtils.are_equal(result, expected_value, message='{} plus {} did not equal {}!'.format(one, two, expected_value))
run_tests(*class_names, callback=print, **__)

Run all tests for the specified classes names.

Parameters:
  • class_names (str) – A collection of classes to run tests for.
  • callback (Callable[str, Any]) – Any time a message needs to be printed or logged, it will be sent to this callback. Default is print.
static test(args, kwargs)

Decorate a function with this to register that function as a test. When the test is run, it will be sent the specified arguments and keyword arguments.

Warning

The function being registered MUST be a staticmethod.

Parameters:
  • args (Any) – The arguments that will be sent to the function upon run.
  • kwargs (Any) – The keyword arguments that will be sent to the function upon run.
Returns:

A function wrapped to run a test upon invocation.

Return type:

Callable[.., Any]

static test_class(mod_identifier)

Decorate a class with this to register a class as containing tests.

Parameters:
  • mod_identifier – The name or identity of the mod that owns the tests within the class.
  • mod_identifier – Union[str, CommonModIdentity]
Returns:

A class wrapped to run tests.

Return type:

Any