+testfailure aptget build-dep --simulate foo-1.0
+cd downloaded
+testsuccess aptget build-dep --simulate ../foo-1.0
+testsuccess aptget build-dep --simulate "$(readlink -f ../foo-1.0)"
+cd ..
+
+testfailureequal 'Reading package lists...
+Building dependency tree...
+E: Must specify at least one package to check builddeps for' aptget build-dep
+testfailureequal 'Reading package lists...
+Building dependency tree...
+E: No architecture information available for armel. See apt.conf(5) APT::Architectures for setup' aptget build-dep --simulate ./foo-1.0 -a armel
+testfailureequal 'Reading package lists...
+Building dependency tree...
+E: Unable to find a source package for foo' aptget build-dep --simulate foo