Alexander Hess
7e3e67c300
- extend `pytest` with an option to run only the minimum number
of (unit) test cases to just keep the coverage at 100%
- rationale:
+ many of the unit test cases partly overlap with
respect to the lines of source code executed
+ also, integration tests, by definition, do not
contribute to a higher test coverage
- implementation: mark "redundant" test cases as one of:
+ `pytest.mark.integration_test`
=> code usage from the perspective of the end user
+ `pytest.mark.overlapping_test`
=> tests not contributing to the 100% coverage
+ `pytest.mark.sanity_test`
=> tests providing confidence in the test data
- add `tests.conftest` module
=> programatically convert the above markers into
`@pytest.mark.no_cover` and collect the non-"redundant" tests
- add nox session "test-fast" to run only the minimum
number of (unit) test while holding coverage at 100%
- refactor some test modules
+ wrap some test cases in a class
+ move sanity tests to the end of the files
33 lines
808 B
Python
33 lines
808 B
Python
"""Tests for the `lalib.fields.rational.RationalField` only."""
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import fractions
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import pytest
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from lalib import fields
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# None of the test cases below contributes towards higher coverage
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pytestmark = pytest.mark.overlapping_test
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Q = fields.Q
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class TestCastAndValidateFieldElements:
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"""Test specifics for `Q.cast()` and `Q.validate()`."""
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@pytest.mark.parametrize(
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"value",
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["1", "0", "1/1", "0/1", "+42", "-42", "+42/1", "-42/1"],
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)
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def test_str_is_field_element(self, value):
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"""`fractions.Fraction()` also accepts `str`ings.
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Source: https://docs.python.org/3/library/fractions.html#fractions.Fraction
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"""
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left = Q.cast(value)
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right = fractions.Fraction(value)
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assert left == right
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assert Q.validate(value)
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