tests: Added IMAP login authentication test

tests/data/Makefile.am

@@ -65,7 +65,7 @@ test709 test710 test711 test712 \
 \
 test800 test801 test802 test803 test804 test805 test806 test807 test808 \
 test809 test810 test811 test812 test813 test814 test815 test816 test817 \
-test818 test819 \
+test818 test819 test820 \
 \
 test850 test851 test852 test853 test854 test855 test856 test857 test858 \
 test859 test860 test861 test862 test863 test864 test865 test866 test867 \

tests/data/test820

@@ -0,0 +1,56 @@
+<testcase>
+<info>
+<keywords>
+IMAP
+IMAP AUTH LOGIN
+</keywords>
+</info>
+
+#
+# Server-side
+<reply>
+<servercmd>
+AUTH LOGIN
+REPLY AUTHENTICATE +
+REPLY dXNlcg== + UGFzc3dvcmQ6
+REPLY c2VjcmV0 A002 OK AUTHENTICATE completed
+</servercmd>
+<data>
+From: me@somewhere
+To: fake@nowhere
+
+body
+
+--
+  yours sincerely
+</data>
+</reply>
+
+#
+# Client-side
+<client>
+<server>
+imap
+</server>
+ <name>
+IMAP login authentication
+ </name>
+ <command>
+'imap://%HOSTIP:%IMAPPORT/820/;UID=1' -u user:secret
+</command>
+</client>
+
+#
+# Verify data after the test has been "shot"
+<verify>
+<protocol>
+A001 CAPABILITY
+A002 AUTHENTICATE LOGIN
+dXNlcg==
+c2VjcmV0
+A003 SELECT 820
+A004 FETCH 1 BODY[]
+A005 LOGOUT
+</protocol>
+</verify>
+</testcase>