Merge pull request #7982 from bluetech/symlink-collect

pathlib: fix symlinked directories not followed during collection
(cherry picked from commit a14a229d1b)

Changed pytester -> testdir.

changelog/7981.bugfix.rst

@@ -0,0 +1 @@
+Fixed symlinked directories not being followed during collection. Regressed in pytest 6.1.0.

src/_pytest/pathlib.py

@@ -566,7 +566,7 @@ def visit(
     entries = sorted(os.scandir(path), key=lambda entry: entry.name)
     yield from entries
     for entry in entries:
-        if entry.is_dir(follow_symlinks=False) and recurse(entry):
+        if entry.is_dir() and recurse(entry):
             yield from visit(entry.path, recurse)
 
 

testing/test_collection.py

@@ -1178,6 +1178,15 @@ def test_collect_symlink_out_of_tree(testdir):
     assert result.ret == 0
 
 
+def test_collect_symlink_dir(testdir: Testdir) -> None:
+    """A symlinked directory is collected."""
+    dir = testdir.mkdir("dir")
+    dir.join("test_it.py").write("def test_it(): pass")
+    symlink_or_skip(dir, testdir.tmpdir.join("symlink_dir"))
+    result = testdir.runpytest()
+    result.assert_outcomes(passed=2)
+
+
 def test_collectignore_via_conftest(testdir):
     """collect_ignore in parent conftest skips importing child (issue #4592)."""
     tests = testdir.mkpydir("tests")