diff options
Diffstat (limited to 'tests/test_process.py')
| -rw-r--r-- | tests/test_process.py | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/tests/test_process.py b/tests/test_process.py index 2447cffe..9b451228 100644 --- a/tests/test_process.py +++ b/tests/test_process.py @@ -1673,12 +1673,21 @@ def venv_world_fixture(tmp_path_factory): # Create a virtualenv. run_command("python -m virtualenv venv") - # A third-party package that installs two different packages. + # A third-party package that installs a few different packages. make_file("third_pkg/third/__init__.py", """\ import fourth def third(x): return 3 * x """) + # Use plugin2.py as third.plugin + with open(os.path.join(os.path.dirname(__file__), "plugin2.py")) as f: + make_file("third_pkg/third/plugin.py", f.read()) + # A render function for plugin2 to use for dynamic file names. + make_file("third_pkg/third/render.py", """\ + def render(filename, linenum): + return "HTML: {}@{}".format(filename, linenum) + """) + # Another package that third can use. make_file("third_pkg/fourth/__init__.py", """\ def fourth(x): return 4 * x @@ -1805,3 +1814,20 @@ class VirtualenvTest(CoverageTest): assert "third" not in out assert "coverage" not in out assert "colorsys" not in out + + @pytest.mark.skipif(not env.C_TRACER, reason="Plugins are only supported with the C tracer.") + def test_venv_with_dynamic_plugin(self, coverage_command): + # https://github.com/nedbat/coveragepy/issues/1150 + # Django coverage plugin was incorrectly getting warnings: + # "Already imported: ... django/template/blah.py" + # It happened because coverage imported the plugin, which imported + # Django, and then the Django files were reported as traceable. + self.make_file(".coveragerc", "[run]\nplugins=third.plugin\n") + self.make_file("myrender.py", """\ + import third.render + print(third.render.render("hello.html", 1723)) + """) + out = run_in_venv(coverage_command + " run --source=. myrender.py") + # The output should not have this warning: + # Already imported a file that will be measured: ...third/render.py (already-imported) + assert out == "HTML: hello.html@1723\n" |