fix: give a default value to the name argument for Matchers. #1273

CHANGES.rst

@@ -28,7 +28,13 @@ Unreleased
 - Fix: Removed another vestige of jQuery from the source tarball
   (`issue 840`_).
 
+- Fix: Added a default value for a new-to-6.x argument of an internal class.
+  This unsupported class is being used by coveralls (`issue 1273`_). Although
+  I'd rather not "fix" unsupported interfaces, it's actually nicer with a
+  default value.
+
 .. _issue 1271: https://github.com/nedbat/coveragepy/issues/1271
+.. _issue 1273: https://github.com/nedbat/coveragepy/issues/1273
 
 
 .. _changes_611:

coverage/files.py

@@ -198,7 +198,7 @@ class TreeMatcher:
     somewhere in a subtree rooted at one of the directories.
 
     """
-    def __init__(self, paths, name):
+    def __init__(self, paths, name="unknown"):
         self.original_paths = human_sorted(paths)
         self.paths = list(map(os.path.normcase, paths))
         self.name = name
@@ -226,7 +226,7 @@ def match(self, fpath):
 
 class ModuleMatcher:
     """A matcher for modules in a tree."""
-    def __init__(self, module_names, name):
+    def __init__(self, module_names, name="unknown"):
         self.modules = list(module_names)
         self.name = name
 
@@ -255,7 +255,7 @@ def match(self, module_name):
 
 class FnmatchMatcher:
     """A matcher for files by file name pattern."""
-    def __init__(self, pats, name):
+    def __init__(self, pats, name="unknown"):
         self.pats = list(pats)
         self.re = fnmatches_to_regex(self.pats, case_insensitive=env.WINDOWS)
         self.name = name

tests/test_files.py

@@ -171,7 +171,7 @@ def test_tree_matcher(self):
             files.canonical_filename("sub4/file5.py"),
             files.canonical_filename("SUB5/file6.py"),
             ]
-        tm = TreeMatcher(trees, "test")
+        tm = TreeMatcher(trees)
         assert tm.info() == sorted(trees)
         for filepath, matches in matches_to_try:
             self.assertMatches(tm, filepath, matches)
@@ -194,7 +194,7 @@ def test_module_matcher(self):
             ('yourmain', False),
         ]
         modules = ['test', 'py.test', 'mymain']
-        mm = ModuleMatcher(modules, "test")
+        mm = ModuleMatcher(modules)
         assert mm.info() == modules
         for modulename, matches in matches_to_try:
             assert mm.match(modulename) == matches, modulename
@@ -207,23 +207,23 @@ def test_fnmatch_matcher(self):
             (self.make_file("sub3/file4.py"), True),
             (self.make_file("sub3/file5.c"), False),
         ]
-        fnm = FnmatchMatcher(["*.py", "*/sub2/*"], "test")
+        fnm = FnmatchMatcher(["*.py", "*/sub2/*"])
         assert fnm.info() == ["*.py", "*/sub2/*"]
         for filepath, matches in matches_to_try:
             self.assertMatches(fnm, filepath, matches)
 
     def test_fnmatch_matcher_overload(self):
-        fnm = FnmatchMatcher(["*x%03d*.txt" % i for i in range(500)], "test")
+        fnm = FnmatchMatcher(["*x%03d*.txt" % i for i in range(500)])
         self.assertMatches(fnm, "x007foo.txt", True)
         self.assertMatches(fnm, "x123foo.txt", True)
         self.assertMatches(fnm, "x798bar.txt", False)
 
     def test_fnmatch_windows_paths(self):
         # We should be able to match Windows paths even if we are running on
         # a non-Windows OS.
-        fnm = FnmatchMatcher(["*/foo.py"], "test")
+        fnm = FnmatchMatcher(["*/foo.py"])
         self.assertMatches(fnm, r"dir\foo.py", True)
-        fnm = FnmatchMatcher([r"*\foo.py"], "test")
+        fnm = FnmatchMatcher([r"*\foo.py"])
         self.assertMatches(fnm, r"dir\foo.py", True)