PM-1235 Modify pytest command to,  1. generate unit test report, 2. generate coverage report, 3. not run coverage if tests fail, and 4. fail tests if coverage is not at least 20%.
PM-1235 Modify pytest command to,  1. generate unit test report, 2. generate coverage report, 3. not run coverage if tests fail, and 4. fail tests if coverage is not at least 20%.

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