}

    public void test_getDecodeText() throws Exception {
        assertEquals("", emlExtractor.getDecodeText(null));
        assertEquals("", emlExtractor.getDecodeText(""));
        assertEquals("abc123", emlExtractor.getDecodeText("abc123"));
        assertEquals("テスト", emlExtractor.getDecodeText("=?UTF-8?B?44OG44K544OI?="));
    }

    public void test_getTextWithAttachment() throws IOException {

			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")},

ps%3A%2F%2Ftwitter.com%2Ftokyo_bousai%3Ft%3D1%26cn%3DZmxleGlibGVfcmVjc18y%26sig%3D469e0de8684fdb4a9be152419cb6a5c173720fed%26al%3D1%26refsrc%3Demail%26iid%3D7c2e8db7f2e0464eb1fb51f268eeba54%26autoactions%3D1438260718%26uid%3D131239501%26nid%3D244%2B123&amp;t=1&amp;cn=ZmxleGlibGVfcmVjc18y&amp;sig=faadb60a4f6304814f721157367df3076b5a98a2&amp;iid=7c2e8db7f2e0464eb1fb51f268eeba54&amp;uid=131239501&amp;nid=244+123" target="blank" style="text-decoration:none;border-style:none;border:0;padding:0;margin:0;"><img...

		tw.check(t, "abc12345", "6789012345") // use Write and then WriteString since the remaining part is still longer than BufSize
	}
	{
		tw := &teststringwriter{}
		b := NewWriterSize(tw, BufSize)
		b.Write([]byte("abc")) // same as above, but use Write instead of WriteString
		tw.check(t, "", "")
		b.WriteString("123456789012345")
		tw.check(t, "abc12345", "6789012345") // same as above
	}
}