Is there a way to specify which pytest tests to run from a file

Question

Is there a way to select pytest tests to run from a file  For example  a file foo txt containing a list of tests to be executed  tests directory foo py  test 001 tests directory bar py  test some other test  Or  is there a way to select multiple tests  having no common pattern in test name  from different directories with pytest  pytest -k  lt pattern gt  allows a single pattern  One option is to have a pytest mark against each test  but my requirement is to run different combination of tests from different files  Is there a way to specify multiple patterns and a test file name for each pattern  Or Is there a way to specify the exact test paths in a file and feed that file as an input to pytest  Or Is there a hook function that can be utilized for this purpose

User · Answer

You can use -k option to run test cases with different patterns   py test tests directory foo py tests directory bar py -k  test 001 or test some other test    This will run test cases with name test 001 and test some other test deselecting the rest of the test cases      Note  This will select any test case starting with test 001 or test some other test  For example  if you have test case test 0012 it will also be selected

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Method 1  Randomly selected tests  Long and ugly   python -m pytest test stress test performance py  TestPerformance  test continuous trigger test integration test config py  TestConfig  test valid config   Method 2  Use Keyword Expressions    Note  I am searching by testcase names  Same is applicable to TestClass names   Case 1  The below will run whichever is found  Since we have used  OR     python -m pytest -k  test password valid or test no configuration    Lets say the two above are actually correct  2 tests will be run   Case 2  Now an incorrect name and another correct name   python -m pytest -k  test password validzzzzzz or test no configuration     Only one is found and run   Case 3  If you want all tests to run or no one  then use AND  python -m pytest -k  test password valid and test no configuration    Both will be run if correct or none   Case 4  Run test only in one folder   python -m pytest test project1 integration -k  test password valid or test no configuration    Case 5  Run test from only one file   python -m pytest test integration test authentication py -k  test password expiry or test incorrect password    Case 6  Run all tests except the match   python -m pytest test integration test authentication py -k  not  test incorrect password

User · Answer

According to the doc about Run tests by node ids  since you have all node ids in foo txt  just run   pytest  cat foo txt   tr   n         this is same with below command  with file content in the question   pytest tests directory foo py  test 001 tests directory bar py  test some other test

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My answer provides a ways to run a subset of test in different scenarios  Run all tests in a project pytest  Run tests in a Single Directory To run all the tests from one directory  use the directory as a parameter to pytest  pytest tests my-directory  Run tests in a Single Test File Module To run a file full of tests  list the file with the relative path as a parameter to pytest  pytest tests my-directory test demo py  Run a Single Test Function To run a single test function  add    and the test function name  pytest -v tests my-directory test demo py  test specific function  -v is used so you can see which function was run  Run a Single Test Class To run just a class  do like we did with functions and add     then the class name to the file parameter  pytest -v tests my-directory test demo py  TestClassName  Run a Single Test Method of a Test Class If you don t want to run all of a test class  just one method  just add another    and the method name  pytest -v tests my-directory test demo py  TestClassName  test specific method  Run a Set of Tests Based on Test Name The -k option enables you to pass in an expression to run tests that have certain names specified by the expression as a substring of the test name  It is possible to use and  or  and not to create complex expressions  For example  to run all of the functions that have  raises in their name  pytest -v -k  raises

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Specifying tests   selecting tests  Pytest supports several ways to run and select tests from the command-line   Run tests in a module  pytest test mod py  Run tests in a directory  pytest testing   Run tests by keyword expressions  pytest -k  MyClass and not method   This will run tests which contain names that match the given string expression  which can include Python operators that use filenames  class names and function names as variables  The example above will run TestMyClass test something but not TestMyClass test method simple   Run tests by node ids  Each collected test is assigned a unique nodeid which consist of the module filename followed by specifiers like class names  function names and parameters from parametrization  separated by    characters   To run a specific test within a module   pytest test mod py  test func  Another example specifying a test method in the command line   pytest test mod py  TestClass  test method  Run tests by marker expressions  pytest -m slow  Will run all tests which are decorated with the  pytest mark slow decorator   For more information see marks   Run tests from packages  pytest --pyargs pkg testing  This will import pkg testing and use its filesystem location to find and run tests from   Source  https   docs pytest org en latest usage html specifying-tests-selecting-tests

User · Answer

Maybe using pytest collect file   hook you can parse the content of a  txt o  yaml file where the tests are specify as you want  and return them to the pytest core   A nice example is shown in the pytest documentation  I think what you are looking for

User · Answer

If you have the same method name in two different classes and you just want to run one of them  this works   pytest tests py -k  TestClassName and test method name

User · Answer

Here s a possible partial answer  because it only allows selecting the test scripts  not individual tests within those scripts   And it also limited by my using legacy compatibility mode vs unittest scripts  so not guaranteeing it would work with native pytest   Here goes    create a new dictory  say subset tests directory  ln -s tests directory foo py ln -s tests directory bar py be careful about imports which implicitly assume files are in test directory   I had to fix several of those by running python foo py  from within subset tests directory and correcting as needed  Once the test scripts execute correctly  just cd subset tests directory and pytest there   Pytest will only pick up the scripts it sees    Another possibility is symlinking within your current test directory  say as ln -s foo py subset foo py then pytest subset  py   That would avoid needing to adjust your imports  but it would clutter things up until you removed the symlinks   Worked for me as well

[python] Is there a way to specify which pytest tests to run from a file?

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