patchTarget.Data = patchedData
	}

	return nil
}

// parseFilename validates a file name and retrieves the encoded target name and patch type.
// - On unknown extension or target name it returns a warning
// - On unknown patch type it returns an error
// - On success it returns a target name and patch type
func parseFilename(fileName string, knownTargets []string) (string, types.PatchType, error, error) {

			fileName:      "etcd+.json",
			expectedError: true,
		},
	}

	for _, tc := range tests {
		t.Run(tc.name, func(t *testing.T) {
			targetName, patchType, warn, err := parseFilename(tc.fileName, testKnownTargets)
			if (err != nil) != tc.expectedError {
				t.Errorf("expected error: %v, got: %v, error: %v", tc.expectedError, err != nil, err)
			}
			if (warn != nil) != tc.expectedWarning {