Added negative self-test on warnings

t/Slave.t

@@ -12,7 +12,15 @@ ok($m1,             "multiple_parameters: master is true");
 my $s1 = $m1->generate_slave({ proto => "imap", os => "w7a" });
 ok($s1,            "multiple_parameters: slave is true");
 
-&helper::dmup(s1=>\$s1);
+my $m2 = $repo->load_stm(stm=>'/selftest/negative/multiple_warnings.stm');
+ok($m2,             "multiple_warnings: master is true");
+
+my $s2 = $m2->generate_slave({ os => "w7a", arch => "amd64" });
+ok($s2,            "multiple_warnings: slave is true");
+
 &helper::dmup(m1=>\$m1);
+&helper::dmup(s1=>\$s1);
+&helper::dmup(m2=>\$m2);
+&helper::dmup(s2=>\$s2);
 
 done_testing();

t/data/strepo/selftest/negative/multiple_warnings.stm

@@ -0,0 +1,16 @@
+Name: Multple warnings
+Component: ~
+Description: SugarTrail negative self-test on multiple condition warnings
+Owner: some.guy@example.com
+Various ISTQB BS: this; that...
+Cartesian: proto=imap; proto=pop3; os=w7a; os=wxx; os=wva; os=w8x; arch=amd64; arch=x86
+
+Only os and arch will be provided
+
+# Troubling things: #
+*   Nothing interesting
+*   Missing params      {bless==1; sorrow==72}
+*   Bad op              {os===1; arch===72}
+*   Altogether          {bless==1; sorrow==72;bless===1; sorrow===72}
+
+So how did it end?