{"golang.org/x/tools/godoc", "golang.org/x/tools/godoc"},
		{"foo.bar/baz.quux", "foo.bar/baz%2equux"},
		{"", ""},
		{"%foo%bar", "%25foo%25bar"},
		{"\x01\x00\x7F☺", "%01%00%7f%e2%98%ba"},
	}

func TestPathToPrefix(t *testing.T) {
	for _, tc := range escapeTests {
		if got := PathToPrefix(tc.Path); got != tc.Escaped {
			t.Errorf("expected PathToPrefix(%s) = %s, got %s", tc.Path, tc.Escaped, got)
		}
	}
}