public async Task UnpinFromStart_Changes_IsAppBarSticky()
{
var tileService = new MockTileService() { SecondaryTileExistsDelegate = (a) => false };
var target = new ItemDetailPageViewModel(null, new MockNavigationService(), null, null, null, tileService, null);
target.SelectedProduct = new ProductViewModel(new Product() { ImageUri = new Uri("http://dummy-image-uri.com") });
// The AppBar should be sticky when the item is being unpinned
tileService.UnpinTileDelegate = (a) =>
{
Assert.IsTrue(target.IsAppBarSticky);
return Task.FromResult(true);
};
// Check if the AppBar is Sticky before unpinning
Assert.IsFalse(target.IsAppBarSticky);
await target.UnpinProductCommand.Execute();
// Check if the AppBar is Sticky after unpinning
Assert.IsFalse(target.IsAppBarSticky);
}
public async Task UnpinFromStart_FiresOnly_IfProductIsSelected_And_SecondaryTileDoesNotExist()
{
bool fired = false;
var tileService = new MockTileService();
var target = new ItemDetailPageViewModel(null, new MockNavigationService(), null, null, null, tileService, null);
// Case 1: Item not selected --> should not be fired
tileService.SecondaryTileExistsDelegate = (a) => true;
tileService.UnpinTileDelegate = (a) =>
{
fired = true;
return Task.FromResult(true);
};
await target.UnpinProductCommand.Execute();
Assert.IsFalse(fired);
// Case 2: Item selected but SecondaryTile does not exist --> should not be fired
tileService.SecondaryTileExistsDelegate = (a) => false;
target.SelectedProduct = new ProductViewModel(new Product() { ImageUri = new Uri("http://dummy-image-uri.com") });
await target.UnpinProductCommand.Execute();
Assert.IsFalse(fired);
// Case 3: Item selected and SecondaryTile exists --> should be fired
tileService.SecondaryTileExistsDelegate = (a) => true;
await target.UnpinProductCommand.Execute();
Assert.IsTrue(fired);
}
