[aws|storage|test] Added versioning test for Files collection.

tests/aws/models/storage/files_test.rb

@@ -0,0 +1,44 @@
+Fog.mock!
+
+Shindo.tests("Storage[:aws] | files", [:aws]) do
+
+  file_attributes = {
+      :key => 'fog_file_tests',
+      :body => lorem_file,
+      :public => true
+  }
+
+  directory_attributes = {
+      :key => 'fogfilestests'
+  }
+
+  @directory = Fog::Storage[:aws].directories.create(directory_attributes)
+  @directory.versioning = true
+
+  model_tests(@directory.files, file_attributes, Fog.mocking?) do
+
+    v1 = @instance.version
+    v2 = @directory.connection.put_object(@directory.key, @instance.key, 'version 2 content').headers['x-amz-version-id']
+    v3 = @directory.connection.delete_object(@directory.key, @instance.key).headers['x-amz-version-id']
+    v4 = @directory.connection.put_object(@directory.key, @instance.key, 'version 3 content').headers['x-amz-version-id']
+
+    tests("#get") do
+      tests("#get without version fetches the latest version").returns(v4) do
+        @directory.files.get(@instance.key).version
+      end
+
+      tests("#get with version fetches that exact version").returns(v2) do
+        @directory.files.get(@instance.key, 'versionId' => v2).version
+      end
+
+      tests("#get with a deleted version returns nil").returns(nil) do
+        @directory.files.get(@instance.key, 'versionId' => v3)
+      end
+    end
+
+  end
+
+  @directory.versions.each(&:destroy)
+  @directory.destroy
+
+end