Settings for dependent targets should include the parent target for test xcconfigs

CHANGELOG.md

@@ -42,6 +42,10 @@ To install release candidates run `[sudo] gem install cocoapods --pre`
   [Dimitris Koutsogiorgas](https://github.com/dnkoutso)
   [#6756](https://github.com/CocoaPods/CocoaPods/pull/6756)
 
+* Settings for dependent targets should include the parent target for test xcconfigs  
+  [Dimitris Koutsogiorgas](https://github.com/dnkoutso)
+  [#6755](https://github.com/CocoaPods/CocoaPods/pull/6755)
+
 * Only check for valid Swift version for pod targets that use Swift  
   [Dimitris Koutsogiorgas](https://github.com/dnkoutso)
   [#6733](https://github.com/CocoaPods/CocoaPods/pull/6733) 

lib/cocoapods/generator/xcconfig/pod_xcconfig.rb

@@ -71,7 +71,7 @@ module Pod
           XCConfigHelper.add_target_specific_settings(target, @xcconfig)
           @xcconfig.merge! XCConfigHelper.settings_for_dependent_targets(target, target.recursive_dependent_targets)
           if @test_xcconfig
-            @xcconfig.merge! XCConfigHelper.settings_for_dependent_targets(target, target.test_dependent_targets)
+            @xcconfig.merge! XCConfigHelper.settings_for_dependent_targets(target, [target, *target.test_dependent_targets])
             XCConfigHelper.generate_vendored_build_settings(nil, [target, *target.test_dependent_targets], @xcconfig)
             XCConfigHelper.generate_other_ld_flags(nil, [target, *target.test_dependent_targets], @xcconfig)
             XCConfigHelper.generate_ld_runpath_search_paths(target, false, true, @xcconfig)

spec/unit/generator/xcconfig/pod_xcconfig_spec.rb

@@ -159,7 +159,7 @@ module Pod
             @coconut_pod_target.test_dependent_targets = [@banana_pod_target]
             generator = PodXCConfig.new(@coconut_pod_target, true)
             xcconfig = generator.generate
-            xcconfig.to_hash['LIBRARY_SEARCH_PATHS'].should == '$(inherited) "$PODS_CONFIGURATION_BUILD_DIR/BananaLib" "${PODS_ROOT}/../../spec/fixtures/banana-lib"'
+            xcconfig.to_hash['LIBRARY_SEARCH_PATHS'].should == '$(inherited) "$PODS_CONFIGURATION_BUILD_DIR/BananaLib" "$PODS_CONFIGURATION_BUILD_DIR/CoconutLib" "${PODS_ROOT}/../../spec/fixtures/banana-lib"'
           end
 
           it 'does not include other ld flags for test dependent targets if its not a test xcconfig' do