XCTAssert to easy assert heterogenous dictionaries are equal

XCTAssert+Dictionaries.swift

/// Makes testings dictionaries berable in Swift. It correctly tests heterogenous dictionaries
///
/// E.g.:
///     let expected: [String: Any] = ["p": true]
///     let actual = doSomething() // returns [String: Any]
///     XCTAssertEqual(actual, expected)
///
public func XCTAssertEqual<K, V>(_ expression1: @autoclosure () throws -> [K: V], _ expression2: @autoclosure () throws -> [K: V], _ message: @autoclosure () -> String? = nil, file: StaticString = #file, line: UInt = #line) {
    do {
        let lhs = try expression1() as NSDictionary
        let rhs = try expression2() as NSDictionary
        if let msg = message() {
            XCTAssertEqual(lhs, rhs, msg, file: file, line: line)
        } else {
            XCTAssertEqual(lhs, rhs, file: file, line: line)
        }
    } catch let error {
        XCTFail("\(error)", file: file, line: line)
    }
}