Function testWalkInfiniteRecursion

lib/fs/walkfs_test.go:89–134

(t *testing.T, fsType FilesystemType, uri string)

}

func testWalkInfiniteRecursion(t *testing.T, fsType FilesystemType, uri string) {
	if !build.IsWindows {
		t.Skip("Infinite recursion detection is tested on windows only")
	}

	fs := NewFilesystem(fsType, uri, new(OptionJunctionsAsDirs))

	if err := fs.MkdirAll("target/foo", 0); err != nil {
		t.Fatal(err)
	}
	if err := fs.Mkdir("towalk", 0); err != nil {
		t.Fatal(err)
	}
	if err := createDirJunct(filepath.Join(uri, "target"), filepath.Join(uri, "towalk/dirjunct")); err != nil {
		t.Fatal(err)
	}
	if err := createDirJunct(filepath.Join(uri, "towalk"), filepath.Join(uri, "target/foo/recurse")); err != nil {
		t.Fatal(err)
	}
	dirjunctCnt := 0
	fooCnt := 0
	found := false
	if err := fs.Walk("towalk", func(path string, info FileInfo, err error) error {
		if err != nil {
			if errors.Is(err, ErrInfiniteRecursion) {
				if found {
					t.Fatal("second infinite recursion detected at", path)
				}
				found = true
				return nil
			}
			t.Fatal(err)
		}
		if info.Name() == "dirjunct" {
			dirjunctCnt++
		} else if info.Name() == "foo" {
			fooCnt++
		}
		return nil
	}); err != nil {
		t.Fatal(err)
	}
	if dirjunctCnt != 2 || fooCnt != 1 || !found {
		t.Fatal("Infinite recursion not detected correctly")
	}
}