diff options
| -rw-r--r-- | coverage/data.py | 3 | ||||
| -rw-r--r-- | tests/test_data.py | 4 |
2 files changed, 6 insertions, 1 deletions
diff --git a/coverage/data.py b/coverage/data.py index 68b02127..3eb51bf3 100644 --- a/coverage/data.py +++ b/coverage/data.py @@ -301,7 +301,8 @@ class CoverageData(object): else: file_data['lines'] = self._lines - file_data['plugins'] = self._plugins + if self._plugins: + file_data['plugins'] = self._plugins # Write the data to the file. json.dump(file_data, file_obj) diff --git a/tests/test_data.py b/tests/test_data.py index ea33a587..ef058e51 100644 --- a/tests/test_data.py +++ b/tests/test_data.py @@ -498,6 +498,8 @@ class CoverageDataFilesTest(DataTestHelpers, CoverageTest): self.assertCountEqual(lines['b.py'], B_PY_LINES_1) # If not measuring branches, there's no arcs entry. self.assertNotIn('arcs', data) + # If no plugins were involved, there's no plugins entry. + self.assertNotIn('plugins', data) def test_file_format_with_arcs(self): # Write with CoverageData, then read the JSON explicitly. @@ -513,6 +515,8 @@ class CoverageDataFilesTest(DataTestHelpers, CoverageTest): self.assertCountEqual(arcs.keys(), MEASURED_FILES_3) self.assertCountEqual(arcs['x.py'], map(list, X_PY_ARCS_3)) self.assertCountEqual(arcs['y.py'], map(list, Y_PY_ARCS_3)) + # If no plugins were involved, there's no plugins entry. + self.assertNotIn('plugins', data) def test_writing_to_other_file(self): data_files = CoverageDataFiles(".otherfile") |