Clean up specs to make failures more obvious

spec/unit/installer/analyzer_spec.rb

@@ -713,7 +713,7 @@ module Pod
       it 'does not include pod target if its used by tests only' do
         spec1 = Resolver::ResolverSpecification.new(stub, true, nil)
         spec2 = Resolver::ResolverSpecification.new(stub, true, nil)
-        target_definition = stub
+        target_definition = stub('TargetDefinition')
         pod_target = stub(:name => 'Pod1', :target_definitions => [target_definition], :specs => [spec1.spec, spec2.spec])
         resolver_specs_by_target = { target_definition => [spec1, spec2] }
         @analyzer.send(:filter_pod_targets_for_target_definition, target_definition, [pod_target], resolver_specs_by_target).should.be.empty

spec/unit/resolver_spec.rb

@@ -470,9 +470,9 @@ module Pod
         spec_names.should == %w(
           Expecta MainSpec MainSpec/Tests
         )
-        resolved_specs.find { |rs| rs.name == 'Expecta' }.used_by_tests_only?.should.be.false
-        resolved_specs.find { |rs| rs.name == 'MainSpec' }.used_by_tests_only?.should.be.false
-        resolved_specs.find { |rs| rs.name == 'MainSpec/Tests' }.used_by_tests_only?.should.be.true
+        resolved_specs.find { |rs| rs.name == 'Expecta' }.should.not.be.used_by_tests_only
+        resolved_specs.find { |rs| rs.name == 'MainSpec' }.should.not.be.used_by_tests_only
+        resolved_specs.find { |rs| rs.name == 'MainSpec/Tests' }.should.be.used_by_tests_only
       end
 
       it 'allows pre-release spec versions when a requirement has an ' \