// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#import <Flutter/Flutter.h>
#import <XCTest/XCTest.h>
#import "HandlerBinaryMessenger.h"
#import "multiple_arity.gen.h"

///////////////////////////////////////////////////////////////////////////////////////////
@interface MultipleAritytest : XCTestCase
@end

///////////////////////////////////////////////////////////////////////////////////////////
@implementation MultipleAritytest

- (void)testSimple {
  HandlerBinaryMessenger *binaryMessenger =
      [[HandlerBinaryMessenger alloc] initWithCodec:MultipleArityHostApiGetCodec()
                                            handler:^id _Nullable(NSArray *_Nonnull args) {
                                              return @([args[0] intValue] - [args[1] intValue]);
                                            }];
  MultipleArityFlutterApi *api =
      [[MultipleArityFlutterApi alloc] initWithBinaryMessenger:binaryMessenger];
  XCTestExpectation *expectation = [self expectationWithDescription:@"subtraction"];
  [api subtractX:@(30)
               y:@(10)
      completion:^(NSNumber *_Nonnull result, NSError *_Nullable error) {
        XCTAssertNil(error);
        XCTAssertEqual(20, result.intValue);
        [expectation fulfill];
      }];
  [self waitForExpectations:@[ expectation ] timeout:30.0];
}

@end