},

	{
		"13c",
		8, 8, 1, '\t', FilterHTML,
		"4444\t333\t22\t1\t333\n" +
			"999999999\t22\n" +
			"7\t22\n" +
			"\t\t\t88888888\n" +
			"\n" +
			"666666\t666666\t666666\t4444\n" +
			"1\t1\t<font color=red attr=日本語>999999999</font>\t0000000000\n",

		"4444\t\t333\t22\t1\t333\n" +
			"999999999\t22\n" +
			"7\t\t22\n" +
			"\t\t\t\t88888888\n" +
			"\n" +

-- overlayfiles/subdir7_asubsubdir_file.txt --
-- overlayfiles/subdir7_zsubsubdir_file.txt --
-- overlayfiles/parentoverwritten_subdir1 --
x
-- overlayfiles/subdir9_this_file_is_overlaid.txt --
99999999
-- overlayfiles/subdir11 --
-- overlayfiles/this_is_a_directory/file.txt --
-- overlayfiles/textfile_txt_file.go --
x
`

func TestReadDir(t *testing.T) {
	initOverlay(t, readDirOverlay)

		{"99", time.Date(1989, time.February, 1, 1, 1, 1, 99000, time.UTC), "99"},
		{"999", time.Date(2017, time.January, 1, 1, 1, 1, 999000, time.UTC), "999"},
		{"9999", time.Date(2083, time.March, 1, 1, 1, 1, 9999000, time.UTC), "9999"},
		{"99999", time.Date(2083, time.March, 1, 1, 1, 1, 99999000, time.UTC), "99999"},
		{"999999", time.Date(2083, time.March, 1, 1, 1, 1, 999999000, time.UTC), "999999"},
	}

	for _, v := range cases {

	// 9 digits
	{"2021-09-29T16:04:33.000000000Z", 0},
	{"2021-09-29T16:04:33.000000001Z", 1},
	{"2021-09-29T16:04:33.100000000Z", 100_000_000},
	{"2021-09-29T16:04:33.100000001Z", 100_000_001},
	{"2021-09-29T16:04:33.999999999Z", 999_999_999},
	{"2021-09-29T16:04:33.012345678Z", 12_345_678},
	// 10 digits, truncates
	{"2021-09-29T16:04:33.0000000000Z", 0},
	{"2021-09-29T16:04:33.0000000001Z", 0},

		{
			duration: &durationpb.Duration{Seconds: 1},
			isValid:  true,
		},
		{
			duration: &durationpb.Duration{Seconds: 31},
			isValid:  true,
		},
		{
			duration: &durationpb.Duration{Seconds: 999999999},
			isValid:  false,
		},
	}

	for _, check := range checks {
		if got := ValidateConnectTimeout(check.duration); (got == nil) != check.isValid {