feat(deps): add support for coverage v6.x (TheKevJames#330)

No major issues in adding support, the bulpk of the work here is providing a smoke test for verification.

Also updated tox and classifiers with new compatible ranges.

Fixes TheKevJames#326

coveralls/reporter.py

@@ -2,9 +2,13 @@
 import os
 
 from coverage import __version__
-from coverage.misc import NoSource
-from coverage.misc import NotPython
 
+try:
+    from coverage.exceptions import NoSource
+    from coverage.exceptions import NotPython
+except ImportError:
+    from coverage.misc import NoSource
+    from coverage.misc import NotPython
 
 log = logging.getLogger('coveralls.reporter')
 

setup.py

@@ -34,7 +34,7 @@
     },
     python_requires='>= 3.5',
     install_requires=[
-        'coverage>=4.1,<6.0',
+        'coverage>=4.1,<7.0',
         'docopt>=0.6.1',
         'requests>=1.0.0',
     ],
@@ -53,6 +53,8 @@
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: Implementation :: CPython',
         'Programming Language :: Python :: Implementation :: PyPy',
     ],

tests/coverage_templates/bar.py

@@ -0,0 +1,12 @@
+def test_func(max_val):
+    for idx in range(0, max_val):
+        if idx == -1:
+            print("Miss 1", idx)
+        elif idx == 4:
+            print("Hit 1", idx)
+        elif idx == 6:
+            print("Hit 2", idx)
+        elif idx == 12:
+            print("Miss 2", idx)
+        else:
+            print("Other", idx)

tests/coverage_templates/bar_310.py

@@ -0,0 +1,13 @@
+def test_func(max_val):
+    for idx in range(0, max_val):
+        match idx:
+            case -1:
+                print("Miss 1", idx)
+            case 4:
+                print("Hit 1", idx)
+            case 6:
+                print("Hit 2", idx)
+            case 12:
+                print("Miss 2", idx)
+            case _:
+                print("Other", idx)

tests/coverage_templates/foo.py

@@ -0,0 +1,8 @@
+import sys
+
+__all__ = ["test_func"]
+
+if sys.version_info[:2] >= (3, 10):
+    from bar_310 import test_func
+else:
+    from bar import test_func

tests/integration_test.py

@@ -0,0 +1,91 @@
+import os
+import tempfile
+import unittest
+from os.path import join as jp, dirname
+from pprint import pprint
+from subprocess import check_call
+
+from coveralls import Coveralls
+
+COVERAGE_CONFIG = """
+[run]
+branch = True
+data_file = %s
+
+[paths]
+source = %s 
+ %s
+"""
+
+COVERAGE_CODE_STANZA = """
+import sys
+
+sys.path.append(%r)
+
+exec('''
+import foo
+
+foo.test_func(%r)
+''')
+"""
+
+COVERAGE_TEMPLATE_PATH = jp(dirname(__file__), "coverage_templates")
+
+
+class IntegrationTest(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        try:
+            cls.old_cwd = os.getcwd()
+        except FileNotFoundError:
+            cls.old_cwd = None
+
+    @classmethod
+    def tearDownClass(cls):
+        if cls.old_cwd:
+            os.chdir(cls.old_cwd)
+
+    def setUp(self):
+        self.temp_dir = tempfile.TemporaryDirectory()
+        os.chdir(self.temp_dir.name)
+        self.covrc = jp(self.temp_dir.name, ".coveragerc")
+        self.cov = jp(self.temp_dir.name, ".coverage")
+        self.test_file = jp(self.temp_dir.name, "test.py")
+
+    def tearDown(self):
+        self.temp_dir.cleanup()
+
+    def _test_harness(self, code):
+        with open(self.covrc, "wt") as f:
+            f.write(COVERAGE_CONFIG % (self.cov, COVERAGE_TEMPLATE_PATH, self.temp_dir))
+        with open(self.test_file, "wt") as f:
+            f.write(code)
+
+        check_call(["coverage", "run", "test.py"])
+
+        os.unlink(self.test_file)
+
+        coverallz = Coveralls(repo_token="xxx",
+                              config_file=self.covrc)
+        report = coverallz.create_data()
+        coverallz.create_report()  # This is purely for coverage
+
+        source_files = set(f["name"] for f in report["source_files"])
+        self.assertNotIn(self.test_file, source_files)
+        self.assertIn(jp(COVERAGE_TEMPLATE_PATH, "foo.py"), source_files)
+        self.assertTrue(jp(COVERAGE_TEMPLATE_PATH, "bar.py") in source_files or
+                        jp(COVERAGE_TEMPLATE_PATH, "bar_310.py") in source_files)
+        self.assertFalse(jp(COVERAGE_TEMPLATE_PATH, "bar.py") in source_files and
+                         jp(COVERAGE_TEMPLATE_PATH, "bar_310.py") in source_files)
+
+    def _test_number(self, num):
+        self._test_harness(COVERAGE_CODE_STANZA % (COVERAGE_TEMPLATE_PATH, num))
+
+    def test_5(self):
+        self._test_number(5)
+
+    def test_7(self):
+        self._test_number(7)
+
+    def test_11(self):
+        self._test_number(11)

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py35-cov41-{default,pyyaml},py{36,37,38,39,310,py3}-cov{41,5}-{default,pyyaml}
+envlist = py35-cov41-{default,pyyaml},py{36,37,38,39,310,py3}-cov{41,5,6}-{default,pyyaml}
 
 [gh-actions]
 python =
@@ -20,6 +20,7 @@ deps =
     pyyaml: PyYAML>=3.10,<5.3
     cov41: coverage>=4.1,<5.0
     cov5: coverage>=5.0,<6.0
+    cov6: coverage>=6.0,<7.0
 commands =
     coverage run --branch --source=coveralls -m pytest tests/
     coverage report -m
@@ -35,3 +36,9 @@ deps =
     coverage>=5.0,<6.0
 commands =
     coveralls --verbose
+
+[testenv:coveralls6]
+deps =
+    coverage>=6.0,<7.0
+commands =
+    coveralls --verbose