To run a test twice in pytest, you can use the @pytest.mark.parametrize decorator along with a list containing the number of times you want to run the test. For example, if you want to run a test twice, you can decorate the test with @pytest.mark.parametrize('run', [1, 2]) and then use the run parameter in the test function to distinguish between the two runs. This allows you to run the test multiple times with different inputs or conditions.
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How to run the same test multiple times in pytest?
In pytest, you can run the same test multiple times by using the pytest.mark.parametrize decorator. This decorator allows you to parametrize a test and specify multiple sets of input values that will be used to run the test multiple times.
Here's an example of how you can run the same test multiple times using pytest.mark.parametrize:
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import pytest @pytest.mark.parametrize("input_value", [1, 2, 3]) def test_my_test(input_value): assert input_value > 0 |
In this example, the test_my_test function will be run three times with input values of 1, 2, and 3. If any of the assertions fail during any of the runs, pytest will report it as a separate test case.
You can also specify multiple parameters to @pytest.mark.parametrize to run multiple tests with different combinations of input values. For example:
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import pytest @pytest.mark.parametrize("input_value1, input_value2", [(1, 2), (3, 4)]) def test_my_test(input_value1, input_value2): assert input_value1 + input_value2 == 3 |
In this example, the test_my_test function will be run two times with input values of (1, 2) and (3, 4).
By using @pytest.mark.parametrize, you can easily run the same test multiple times with different input values in pytest.
How to run a test case twice in pytest?
To run a test case twice in pytest, you can use a loop within your test function to execute the test multiple times. Here is an example of how you can achieve this:
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import pytest def test_my_test_case(): for _ in range(2): # Run the test case twice # Your test case code here assert 1 + 1 == 2 |
In this example, the test case function test_my_test_case will be executed twice due to the loop that runs the test code twice. You can adjust the loop to run the test case as many times as needed.
How to force a test to run again in pytest?
You can force a test to run again in pytest by using the -k option followed by the name of the test or by using the --lf option to run only the tests that failed in the previous run.
For example, to run a specific test again, you can use the following command:
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pytest -k test_name
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To run only the failed tests again, you can use the following command:
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pytest --lf
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This will rerun only the tests that failed in the previous run.
How to rerun a failed test in pytest?
To rerun a failed test in pytest, you can use the --lf (short for --last-failed) flag followed by the directory or file path where the failed test is located. This flag tells pytest to only run the tests that failed in the last test run.
Here's an example command to rerun a failed test in pytest:
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pytest --lf path/to/test_file.py
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This command will only run the failed test from the specified test file. You can also use the --ff (short for --failed-first) flag to run the failed tests first before running the rest of the tests:
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pytest --ff path/to/test_file.py
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Using these flags can help you quickly identify and fix any issues in your tests without rerunning the entire test suite.
