1 files changed, 59 insertions, 0 deletions
diff --git a/rt/t/mail/mime_decoding.t b/rt/t/mail/mime_decoding.t
new file mode 100644
index 000000000..8257aee80
--- /dev/null
+++ b/rt/t/mail/mime_decoding.t
@@ -0,0 +1,59 @@
+#!/usr/bin/perl
+use strict;
+use warnings;
+use RT::Test nodata => 1, tests => 6;
+
+use_ok('RT::I18N');
+
+diag q{'=' char in a leading part before an encoded part} if $ENV{TEST_VERBOSE};
+{
+    my $str = 'key="plain"; key="=?UTF-8?B?0LzQvtC5X9GE0LDQudC7LmJpbg==?="';
+    is(
+        RT::I18N::DecodeMIMEWordsToUTF8($str),
+        'key="plain"; key="мой_файл.bin"',
+        "right decoding"
+    );
+}
+
+diag q{not compliant with standards, but MUAs send such field when attachment has non-ascii in name}
+    if $ENV{TEST_VERBOSE};
+{
+    my $str = 'attachment; filename="=?UTF-8?B?0LzQvtC5X9GE0LDQudC7LmJpbg==?="';
+    is(
+        RT::I18N::DecodeMIMEWordsToUTF8($str),
+        'attachment; filename="мой_файл.bin"',
+        "right decoding"
+    );
+}
+
+diag q{'=' char in a trailing part after an encoded part} if $ENV{TEST_VERBOSE};
+{
+    my $str = 'attachment; filename="=?UTF-8?B?0LzQvtC5X9GE0LDQudC7LmJpbg==?="; some_prop="value"';
+    is(
+        RT::I18N::DecodeMIMEWordsToUTF8($str),
+        'attachment; filename="мой_файл.bin"; some_prop="value"',
+        "right decoding"
+    );
+}
+
+diag q{regression test for #5248 from rt3.fsck.com} if $ENV{TEST_VERBOSE};
+{
+    my $str = qq{Subject: =?ISO-8859-1?Q?Re=3A_=5BXXXXXX=23269=5D_=5BComment=5D_Frag?=}
+        . qq{\n =?ISO-8859-1?Q?e_zu_XXXXXX--xxxxxx_/_Xxxxx=FCxxxxxxxxxx?=};
+    is(
+        RT::I18N::DecodeMIMEWordsToUTF8($str),
+        qq{Subject: Re: [XXXXXX#269] [Comment] Frage zu XXXXXX--xxxxxx / Xxxxxüxxxxxxxxxx},
+        "right decoding"
+    );
+}
+
+diag q{newline and encoded file name} if $ENV{TEST_VERBOSE};
+{
+    my $str = qq{application/vnd.ms-powerpoint;\n\tname="=?ISO-8859-1?Q?Main_presentation.ppt?="};
+    is(
+        RT::I18N::DecodeMIMEWordsToUTF8($str),
+        qq{application/vnd.ms-powerpoint;\tname="Main presentation.ppt"},
+        "right decoding"
+    );
+}
+