pytest-regex-dependency

Management of Pytest dependencies via regex patterns

Installation

pip install pytest-regex-dependency

Use

The following examples are possible use cases for this plugin

• Test depends on tests with node Ids matching a specified pattern:

  test_foo.py

  import pytest
          
  
  def test_a():
      pass
  
  @pytest.mark.regex_dependency('test_foo\.py::test_a')
  def test_b():
      pass
  

• Test depends on all tests within module:

  test_dependency.py

  def test_a():
      pass
  
  def test_b():
      pass
  

  test_bar.py

  import pytest
          
  @pytest.mark.regex_dependency('test_dependency\.py', target='module')
  def test_a():
      pass
  

• Test depends on all tests within class:

  import pytest
          
  
  class TestClass:
      def test_a(self):
          pass
  
  @pytest.mark.regex_dependency('TestClass', target="class")
  def test_b():
      pass
  

• Test depends on all tests functions matching a specified pattern:

  import pytest
          
  
  def test_1():
      pass
  
  def test_2():
      pass
  
  def test_3():
      pass
  
  @pytest.mark.regex_dependency('test_[0-9]+$', target='function')
  def test_a():
      pass
  

Considerations

• If a test's pattern is not met, the test function will run

  In the following example test_b will run:

  import pytest
          
  
  def test_a():
      pass
  
  @pytest.mark.regex_dependency('test_1')
  def test_b():
      pass
  

• The outcome of all phases of a dependency test is consider when determining if the calling test should be skipped. This includes the dependency test's setup, call, and teardown phases. If any of the phases do not match the calling test's allowed_outcomes requirement, the test will be skipped. This comes into light when a dependency test's fixture teardown logic fails but the dependency test succeeds.

  The following is an example of this scenario:

  import pytest
          
  
  @pytest.fixture
  def foo():
      yield None
      pytest.fail()
  
  def test_a(foo):
      pass
  
  @pytest.mark.regex_dependency('test_a', target="function", allowed_outcomes=["passed"])
  def test_b():
      pass