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Create unit tests and run tests in CI/CD pipeline

You can create a tests folder in your project folder and put unit tests in this folder. In your CI/CD pipeline, you can cd into the project’s folder and run the following command to run unit tests. 
python3 -m unittest discover -s tests --failfast

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Example unit tests

End-to-end test for a pipeline: 
from mage_ai.data_preparation.models.pipeline import Pipeline
from mage_ai.tests.base_test import TestCase


class ExamplePipelineTest(TestCase):
    def test_pipeline_execution(self):
        pipeline = Pipeline.get('example_pipeline')
        pipeline.execute_sync()

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Test environment

When running unit tests, the env variable’s value in the method’s kwargs is test. You can leverage this variable to change the code logic or config used in the unit tests.