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extension XCTestCase {
enum FixtureError: Error {
case resourceNotFound
case invalidFormat
}
/// Loads the json fixture with the given name from disk and returns a json object.
/// - Parameter fileName: The anme of the fixture on disk (without the type suffix).
/// - Throws: Any errors encountered during the process.
func jsonFixture(named fileName: String) throws -> [String: Any] {
let bundle = Bundle(for: type(of: self))
let path = bundle.path(forResource: fileName, ofType: "json")
guard let url = path.flatMap(URL.init(fileURLWithPath:)) else { throw FixtureError.resourceNotFound }
let data = try Data(contentsOf: url)
guard let json = try JSONSerialization.jsonObject(with: data, options: []) as? [String: Any] else { throw FixtureError.invalidFormat }
return json
}
}
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