[Installer] Fix specs for uniqing the list of vendored frameworks

spec/unit/installer_spec.rb

@@ -250,7 +250,10 @@ module Pod
 
     describe '#verify_no_duplicate_framework_names' do
       it 'detects duplicate framework names' do
-        Sandbox::FileAccessor.any_instance.stubs(:vendored_frameworks).returns([Pathname('monkey.framework')])
+        Sandbox::FileAccessor.any_instance.stubs(:vendored_frameworks).
+          returns([Pathname('a/monkey.framework')]).then.
+          returns([Pathname('b/monkey.framework')]).then.
+          returns([Pathname('c/monkey.framework')])
         fixture_path = ROOT + 'spec/fixtures'
         config.repos_dir = fixture_path + 'spec-repos'
         podfile = Pod::Podfile.new do
@@ -266,6 +269,25 @@ module Pod
         @installer = Installer.new(config.sandbox, podfile, lockfile)
         should.raise(Informative) { @installer.install! }.message.should.match /conflict.*monkey/
       end
+
+      it 'allows duplicate references to the same expanded framework path' do
+        Sandbox::FileAccessor.any_instance.stubs(:vendored_frameworks).returns([fixture('monkey/dynamic-monkey.framework')])
+        Sandbox::FileAccessor.any_instance.stubs(:dynamic_binary?).returns(true)
+        fixture_path = ROOT + 'spec/fixtures'
+        config.repos_dir = fixture_path + 'spec-repos'
+        podfile = Pod::Podfile.new do
+          platform :ios, '8.0'
+          xcodeproj 'SampleProject/SampleProject'
+          use_frameworks!
+          pod 'BananaLib',       :path => (fixture_path + 'banana-lib').to_s
+          pod 'monkey',          :path => (fixture_path + 'monkey').to_s
+        end
+        lockfile = generate_lockfile
+        config.integrate_targets = false
+
+        @installer = Installer.new(config.sandbox, podfile, lockfile)
+        should.not.raise(Informative) { @installer.install! }
+      end
     end
 
     #-------------------------------------------------------------------------#