
// 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/shell/platform/darwin/macos/framework/Source/FlutterEngineTestUtils.h"
#import "flutter/shell/platform/darwin/macos/framework/Source/FlutterDartProject_Internal.h"
#import "flutter/shell/platform/darwin/macos/framework/Source/FlutterEngine_Internal.h"

#include "flutter/testing/testing.h"

namespace flutter::testing {

FlutterEngineTest::FlutterEngineTest() = default;

void FlutterEngineTest::SetUp() {
  native_resolver_ = std::make_shared<TestDartNativeResolver>();
  NSString* fixtures = @(testing::GetFixturesPath());
  project_ = [[FlutterDartProject alloc]
      initWithAssetsPath:fixtures
             ICUDataPath:[fixtures stringByAppendingString:@"/icudtl.dat"]];
  project_.rootIsolateCreateCallback = FlutterEngineTest::IsolateCreateCallback;
  engine_ = [[FlutterEngine alloc] initWithName:@"test"
                                        project:project_
                         allowHeadlessExecution:true];
}

void FlutterEngineTest::TearDown() {
  [engine_ shutDownEngine];
  engine_ = nil;
  native_resolver_.reset();
}

void FlutterEngineTest::IsolateCreateCallback(void* user_data) {
  native_resolver_->SetNativeResolverForIsolate();
}

void FlutterEngineTest::AddNativeCallback(const char* name, Dart_NativeFunction function) {
  native_resolver_->AddNativeCallback({name}, function);
}

id CreateMockFlutterEngine(NSString* pasteboardString) {
  {
    NSString* fixtures = @(testing::GetFixturesPath());
    FlutterDartProject* project = [[FlutterDartProject alloc]
        initWithAssetsPath:fixtures
               ICUDataPath:[fixtures stringByAppendingString:@"/icudtl.dat"]];
    FlutterEngine* engine = [[FlutterEngine alloc] initWithName:@"test"
                                                        project:project
                                         allowHeadlessExecution:true];

    // Mock pasteboard so that this test will work in environments without a
    // real pasteboard.
    id pasteboardMock = OCMClassMock([NSPasteboard class]);
    OCMExpect([pasteboardMock stringForType:[OCMArg any]]).andDo(^(NSInvocation* invocation) {
      NSString* returnValue = pasteboardString.length > 0 ? pasteboardString : nil;
      [invocation setReturnValue:&returnValue];
    });
    id engineMock = OCMPartialMock(engine);
    OCMStub([engineMock pasteboard]).andReturn(pasteboardMock);
    return engineMock;
  }
}

}  // namespace flutter::testing