diff options
| -rw-r--r-- | tests/test_data.py | 54 |
1 files changed, 50 insertions, 4 deletions
diff --git a/tests/test_data.py b/tests/test_data.py index 9d909705..3cae55bd 100644 --- a/tests/test_data.py +++ b/tests/test_data.py @@ -6,6 +6,7 @@ import os.path from coverage.backward import pickle from coverage.data import CoverageData, CoverageDataFiles from coverage.files import PathAliases, canonical_filename +from coverage.misc import CoverageException from tests.coveragetest import CoverageTest, DebugControlString @@ -58,7 +59,7 @@ class DataTestHelpers(CoverageTest): self.assertCountEqual(covdata.measured_files(), measured) -class DataTest(DataTestHelpers, CoverageTest): +class CoverageDataTest(DataTestHelpers, CoverageTest): """Test cases for CoverageData.""" run_in_temp_dir = False @@ -105,16 +106,61 @@ class DataTest(DataTestHelpers, CoverageTest): self.assertIsNone(covdata.plugin_name("p3.not_here")) -class DataFilesTest(DataTestHelpers, CoverageTest): +class CoverageDataTestInTempDir(DataTestHelpers, CoverageTest): + """Tests of CoverageData that need a temp dir to make files.""" + + def test_read_write_lines(self): + covdata1 = CoverageData(collector="coverage tests") + covdata1.add_lines(DATA_1) + covdata1.write_file("lines.dat") + + covdata2 = CoverageData() + covdata2.read_file("lines.dat") + self.assert_line_counts(covdata2, SUMMARY_1) + self.assert_measured_files(covdata2, MEASURED_FILES_1) + self.assertCountEqual(covdata2.lines("a.py"), A_PY_LINES_1) + + def test_read_write_arcs(self): + covdata1 = CoverageData(collector="coverage tests") + covdata1.add_arcs(ARC_DATA_3) + covdata1.write_file("arcs.dat") + + covdata2 = CoverageData() + covdata2.read_file("arcs.dat") + self.assert_line_counts(covdata2, SUMMARY_3) + self.assert_measured_files(covdata2, MEASURED_FILES_3) + self.assertCountEqual(covdata2.lines("x.py"), X_PY_LINES_3) + self.assertCountEqual(covdata2.arcs("x.py"), X_PY_ARCS_3) + + def test_read_errors(self): + covdata = CoverageData() + + self.make_file("xyzzy.dat", "xyzzy") + with self.assertRaises(CoverageException): + covdata.read_file("xyzzy.dat") + + self.make_file("empty.dat", "") + with self.assertRaises(CoverageException): + covdata.read_file("empty.dat") + + with self.assertRaises(CoverageException): + covdata.read_file("nonexistent.dat") + + # and after all that, no data should be in our CoverageData. + self.assertFalse(covdata) + + +class CoverageDataFilesTest(DataTestHelpers, CoverageTest): """Tests of CoverageDataFiles.""" no_files_in_temp_dir = True def setUp(self): - super(DataFilesTest, self).setUp() + super(CoverageDataFilesTest, self).setUp() self.data_files = CoverageDataFiles() - def test_reading_empty(self): + def test_reading_missing(self): + self.assert_doesnt_exist(".coverage") covdata = CoverageData() self.data_files.read(covdata) self.assert_line_counts(covdata, {}) |