#load_test | Explore Tumblr posts and blogs

trakloading262 · 4 years ago

Text

Unittest Runner

Dotnet Core Run Unit Tests

Visual Studio Run Unit Test

Wd passport for mac not working. pytest supports running Python unittest-based tests out of the box.It’s meant for leveraging existing unittest-based test suitesto use pytest as a test runner and also allow to incrementally adaptthe test suite to take full advantage of pytest’s features.

To run an existing unittest-style test suite using pytest, type:

The following are 30 code examples for showing how to use unittest.TextTestRunner.These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. Basic example¶ The unittest module provides a rich set of tools for constructing and running tests.

pytest will automatically collect unittest.TestCase subclasses andtheir test methods in test_*.py or *_test.py files.

Almost all unittest features are supported:

@unittest.skip style decorators;

setUp/tearDown;

setUpClass/tearDownClass;

setUpModule/tearDownModule;

Up to this point pytest does not have support for the following features:

load_tests protocol;

subtests;

Benefits out of the box¶

By running your test suite with pytest you can make use of several features,in most cases without having to modify existing code:

Obtain more informative tracebacks;

stdout and stderr capturing;

Test selection options using -k and -m flags;

Stopping after the first (or N) failures;

–pdb command-line option for debugging on test failures(see note below);

Distribute tests to multiple CPUs using the pytest-xdist plugin;

Use plain assert-statements instead of self.assert* functions (unittest2pytest is immensely helpful in this);

pytest features in unittest.TestCase subclasses¶

The following pytest features work in unittest.TestCase subclasses:

Marks: skip, skipif, xfail;

Auto-use fixtures;

The following pytest features do not work, and probablynever will due to different design philosophies:

Fixtures (except for autouse fixtures, see below);

Parametrization;

Custom hooks;

Third party plugins may or may not work well, depending on the plugin and the test suite.

Mixing pytest fixtures into unittest.TestCase subclasses using marks¶

Running your unittest with pytest allows you to use itsfixture mechanism with unittest.TestCase styletests. Assuming you have at least skimmed the pytest fixture features,let’s jump-start into an example that integrates a pytest db_classfixture, setting up a class-cached database object, and then referenceit from a unittest-style test:

This defines a fixture function db_class which - if used - iscalled once for each test class and which sets the class-leveldb attribute to a DummyDB instance. The fixture functionachieves this by receiving a special request object which givesaccess to the requesting test context suchas the cls attribute, denoting the class from which the fixtureis used. This architecture de-couples fixture writing from actual testcode and allows re-use of the fixture by a minimal reference, the fixturename. So let’s write an actual unittest.TestCase class using ourfixture definition:

The @pytest.mark.usefixtures('db_class') class-decorator makes sure thatthe pytest fixture function db_class is called once per class.Due to the deliberately failing assert statements, we can take a look atthe self.db values in the traceback:

This default pytest traceback shows that the two test methodsshare the same self.db instance which was our intentionwhen writing the class-scoped fixture function above.

Using autouse fixtures and accessing other fixtures¶

Although it’s usually better to explicitly declare use of fixtures you needfor a given test, you may sometimes want to have fixtures that areautomatically used in a given context. After all, the traditionalstyle of unittest-setup mandates the use of this implicit fixture writingand chances are, you are used to it or like it.

You can flag fixture functions with @pytest.fixture(autouse=True)and define the fixture function in the context where you want it used.Let’s look at an initdir fixture which makes all test methods of aTestCase class execute in a temporary directory with apre-initialized samplefile.ini. Our initdir fixture itself usesthe pytest builtin tmpdir fixture to delegate thecreation of a per-test temporary directory:

Due to the autouse flag the initdir fixture function will beused for all methods of the class where it is defined. This is ashortcut for using a @pytest.mark.usefixtures('initdir') markeron the class like in the previous example.

Running this test module …:

… gives us one passed test because the initdir fixture functionwas executed ahead of the test_method. Microstation software free. download full version with crack.

Note

unittest.TestCase methods cannot directly receive fixturearguments as implementing that is likely to inflicton the ability to run general unittest.TestCase test suites.

The above usefixtures and autouse examples should help to mix inpytest fixtures into unittest suites.

You can also gradually move away from subclassing from unittest.TestCase to plain assertsand then start to benefit from the full pytest feature set step by step.

Dotnet Core Run Unit Tests

Note

Visual Studio Run Unit Test

Due to architectural differences between the two frameworks, setup andteardown for unittest-based tests is performed during the call phaseof testing instead of in pytest’s standard setup and teardownstages. This can be important to understand in some situations, particularlywhen reasoning about errors. For example, if a unittest-based suiteexhibits errors during setup, pytest will report no errors during itssetup phase and will instead raise the error during call.

0 notes