+buildsimplenativepackage 'foo' 'i386,amd64' '1.0'
+
+testfailureequal "Reading package lists...
+Building dependency tree...
+Note, selecting 'foo:i386' instead of './incoming/foo_1.0_i386.deb'
+Note, selecting 'foo' instead of './incoming/foo_1.0_amd64.deb'
+Some packages could not be installed. This may mean that you have
+requested an impossible situation or if you are using the unstable
+distribution that some required packages have not yet been created
+or been moved out of Incoming.
+The following information may help to resolve the situation:
+
+The following packages have unmet dependencies:
+ foo:i386 : Conflicts: foo but 1.0 is to be installed
+ foo : Conflicts: foo:i386 but 1.0 is to be installed
+E: Unable to correct problems, you have held broken packages." aptget install ./incoming/foo_1.0_i386.deb ./incoming/foo_1.0_amd64.deb -s -q=0
+