Fix test data, improve Makefile.

Previous test data was insufficient for proper testing.
Test compose runs and depsolving tests require precisely
set NVRs, dependencies, sub-packages, etc.
Using rpmfluff for these would be an overkill, it's better
to create RPMs directly from specs.

tests/data/specs/dummy-kernel.spec

@@ -0,0 +1,48 @@
+Name:           dummy-kernel
+Version:        3.1.0
+Release:        1
+License:        LGPLv2
+Summary:        A dummy kernel package
+
+%description
+A dummy kernel package
+
+%package headers
+Summary:        A dummy kernel-headers package
+
+%description headers
+A dummy kernel-headers package
+
+%package doc
+Summary:        A dummy kernel-doc package
+BuildArch:      noarch
+
+%description doc
+A dummy kernel-doc package
+
+
+#%prep
+#%setup -q
+
+
+%build
+echo OK
+
+
+%install
+rm -rf $RPM_BUILD_ROOT
+mkdir $RPM_BUILD_ROOT
+
+
+%clean
+rm -rf $RPM_BUILD_ROOT
+
+
+%files
+%files headers
+%files doc
+
+
+%changelog
+* Tue Oct 18 2011 Daniel Mach <dmach@redhat.com> - 3.1.0-1
+- First release