FlutterViewTest.mm

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// 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/FlutterView.h"
 
#import <Metal/Metal.h>
 
#import "flutter/testing/testing.h"
 
constexpr int64_t kImplicitViewId = 0ll;
 
@interface TestFlutterViewDelegate : NSObject <FlutterViewDelegate>
 
@end
 
@implementation TestFlutterViewDelegate
 
- (void)viewDidReshape:(nonnull NSView*)view {
}
 
- (BOOL)viewShouldAcceptFirstResponder:(NSView*)view {
  return YES;
}
 
@end
 
TEST(FlutterView, ShouldInheritContentsScaleReturnsYes) {
  id<MTLDevice> device = MTLCreateSystemDefaultDevice();
  id<MTLCommandQueue> queue = [device newCommandQueue];
  TestFlutterViewDelegate* delegate = [[TestFlutterViewDelegate alloc] init];
  FlutterThreadSynchronizer* threadSynchronizer = [[FlutterThreadSynchronizer alloc] init];
  FlutterView* view = [[FlutterView alloc] initWithMTLDevice:device
                                                commandQueue:queue
                                                    delegate:delegate
                                          threadSynchronizer:threadSynchronizer
                                                      viewId:kImplicitViewId];
  EXPECT_EQ([view layer:view.layer shouldInheritContentsScale:3.0 fromWindow:view.window], YES);
}