def assert_arcs3_data(covdata: CoverageData) -> None:
    """Check that `covdata` has the data from ARCS3."""
    assert_line_counts(covdata, SUMMARY_3)
    assert_measured_files(covdata, MEASURED_FILES_3)
    assert_count_equal(covdata.lines("x.py"), X_PY_LINES_3)
    assert_count_equal(covdata.arcs("x.py"), X_PY_ARCS_3)
    assert_count_equal(covdata.lines("y.py"), Y_PY_LINES_3)
    assert_count_equal(covdata.arcs("y.py"), Y_PY_ARCS_3)
    assert covdata.has_arcs()
Check that `covdata` has the data from ARCS3.
tests/test_data.py