want: time.Unix(1, 123456789),
			ok:   true,
		},
		{
			name: "TrailingError",
			in:   "1.123abc",
			want: time.Time{},
			ok:   false,
		},
		{
			name: "LeadingError",
			in:   "1.abc123",
			want: time.Time{},
			ok:   false,
		},
	}
	for _, tt := range tests {
		b.Run(tt.name, func(b *testing.B) {
			b.ReportAllocs()
			for b.Loop() {
				ts, err := parsePAXTime(tt.in)

type StringTest struct {
	in  string
	out []byte
}

var upperTests = []StringTest{
	{"", []byte("")},
	{"ONLYUPPER", []byte("ONLYUPPER")},
	{"abc", []byte("ABC")},
	{"AbC123", []byte("ABC123")},
	{"azAZ09_", []byte("AZAZ09_")},
	{"longStrinGwitHmixofsmaLLandcAps", []byte("LONGSTRINGWITHMIXOFSMALLANDCAPS")},

        body = "Please authenticate.",
      ),
    )
    server.enqueue(
      MockResponse(body = "A"),
    )
    val authenticator = RecordingOkAuthenticator("oauthed abc123", "Bearer")
    client =
      client
        .newBuilder()
        .authenticator(authenticator)
        .build()
    assertContent("A", getResponse(newRequest("/private")))