assertThat("Thu, 01 Jan 1970 00:00:00 GMT-01:00".toHttpDateOrNull()!!.time).isEqualTo(3600000L)
    assertThat("Thu, 01 Jan 1970 00:00:00 PST".toHttpDateOrNull()!!.time).isEqualTo(28800000L)
    // Ignore trailing junk
    assertThat("Thu, 01 Jan 1970 00:00:00 GMT JUNK".toHttpDateOrNull()!!.time).isEqualTo(0L)
    // Missing timezones treated as bad.
    assertThat("Thu, 01 Jan 1970 00:00:00".toHttpDateOrNull()).isNull()

    assertThat(headers["testDate"]).isEqualTo("Thu, 01 Jan 1970 00:00:00 GMT")
    assertThat(headers.getDate("testDate")).isEqualTo(Date(0L))
  }

  @Test fun addInstant() {
    val expected = Instant.ofEpochMilli(0L)
    val headers =
      Headers.Builder()
        .add("Test-Instant", expected)
        .build()
    assertThat(headers["Test-Instant"]).isEqualTo("Thu, 01 Jan 1970 00:00:00 GMT")

    builder["g"] = Instant.EPOCH
    assertThat(builder["a"]).isEqualTo("b")
    assertThat(builder["c"]).isEqualTo("d")
    assertThat(builder["e"]).isEqualTo("Thu, 01 Jan 1970 00:00:00 GMT")
    assertThat(builder["g"]).isEqualTo("Thu, 01 Jan 1970 00:00:00 GMT")
  }

Using binary mode to transfer files.
ftp> ls runner/
229 Entering Extended Passive Mode (|||39155|)
150 Opening ASCII mode data connection for file list
drwxrwxrwx 1 nobody nobody            0 Jan  1 00:00 chunkdocs/
drwxrwxrwx 1 nobody nobody            0 Jan  1 00:00 testdir/
...
```

Following example shows how to list an object and download it locally via `ftp` client:

```
ftp> ls runner/chunkdocs/metadata

	// Do not change this order, http time format dates
	// are usually in http.TimeFormat however there are
	// situations where for example aws-sdk-java doesn't
	// send the correct format.
	http.TimeFormat,
	"Mon, 2 Jan 2006 15:04:05 GMT",
}

// ParseHeader parses http.TimeFormat with an acceptable
// extension for http.TimeFormat - return time might be zero
// if the timeStr is invalid.

------------|----------|------------|--------|--------------|--------------|------------------|------------------|------------------
OldPictures |   old/   |    ✓       |  ✓     |  1 Jan 2020  |     ✗        |                  |                  |
------------|----------|------------|--------|--------------|--------------|------------------|------------------|------------------