public void AttachShouldNotThrowWhenHostControlNull()
{
MockPresentationRegion region = new MockPresentationRegion();
SyncRegionContextWithHostBehavior behavior = new SyncRegionContextWithHostBehavior();
behavior.Region = region;
behavior.Attach();
}
public void ShouldGetInitialValueFromHostAndSetOnRegion()
{
MockPresentationRegion region = new MockPresentationRegion();
SyncRegionContextWithHostBehavior behavior = new SyncRegionContextWithHostBehavior();
behavior.Region = region;
DependencyObject mockDependencyObject = new MockDependencyObject();
behavior.HostControl = mockDependencyObject;
RegionContext.GetObservableContext(mockDependencyObject).Value = "NewValue";
Assert.IsNull(region.Context);
behavior.Attach();
Assert.AreEqual("NewValue", region.Context);
}
public async Task ShouldForwardRegionContextValueToHostControl()
{
await ExecuteOnUIThread(() =>
{
MockPresentationRegion region = new MockPresentationRegion();
SyncRegionContextWithHostBehavior behavior = new SyncRegionContextWithHostBehavior() { Region = region };
DependencyObject mockDependencyObject = new MockDependencyObject();
behavior.HostControl = mockDependencyObject;
behavior.Attach();
Assert.IsNull(region.Context);
RegionContext.GetObservableContext(mockDependencyObject).Value = "NewValue";
Assert.AreEqual("NewValue", region.Context);
});
}
public void ShouldUpdateHostControlRegionContextValueWhenContextOfRegionChanges()
{
MockPresentationRegion region = new MockPresentationRegion();
SyncRegionContextWithHostBehavior behavior = new SyncRegionContextWithHostBehavior();
behavior.Region = region;
DependencyObject mockDependencyObject = new MockDependencyObject();
behavior.HostControl = mockDependencyObject;
ObservableObject<object> observableRegionContext = RegionContext.GetObservableContext(mockDependencyObject);
behavior.Attach();
Assert.IsNull(observableRegionContext.Value);
region.Context = "NewValue";
Assert.AreEqual("NewValue", observableRegionContext.Value);
}
public void ChangingRegionContextObservableObjectValueShouldAlsoChangeRegionContextDependencyProperty()
{
MockPresentationRegion region = new MockPresentationRegion();
SyncRegionContextWithHostBehavior behavior = new SyncRegionContextWithHostBehavior();
behavior.Region = region;
DependencyObject hostControl = new MockDependencyObject();
behavior.HostControl = hostControl;
behavior.Attach();
Assert.IsNull(RegionManager.GetRegionContext(hostControl));
RegionContext.GetObservableContext(hostControl).Value = "NewValue";
Assert.AreEqual("NewValue", RegionManager.GetRegionContext(hostControl));
}
public void SettingHostControlAfterAttachThrows()
{
SyncRegionContextWithHostBehavior behavior = new SyncRegionContextWithHostBehavior();
DependencyObject hostControl1 = new MockDependencyObject();
behavior.HostControl = hostControl1;
behavior.Attach();
DependencyObject hostControl2 = new MockDependencyObject();
behavior.HostControl = hostControl2;
}
public async Task SettingHostControlAfterAttachThrows()
{
await ExecuteOnUIThread(() =>
{
SyncRegionContextWithHostBehavior behavior = new SyncRegionContextWithHostBehavior();
DependencyObject hostControl1 = new MockDependencyObject();
behavior.HostControl = hostControl1;
behavior.Attach();
DependencyObject hostControl2 = new MockDependencyObject();
Assert.ThrowsException<InvalidOperationException>(() => behavior.HostControl = hostControl2);
});
}
public async Task AttachShouldChangeRegionContextDependencyProperty()
{
await ExecuteOnUIThread(() =>
{
MockPresentationRegion region = new MockPresentationRegion();
SyncRegionContextWithHostBehavior behavior = new SyncRegionContextWithHostBehavior() { Region = region };
DependencyObject hostControl = new MockDependencyObject();
behavior.HostControl = hostControl;
RegionContext.GetObservableContext(hostControl).Value = "NewValue";
Assert.IsNull(RegionManager.GetRegionContext(hostControl));
behavior.Attach();
Assert.AreEqual("NewValue", RegionManager.GetRegionContext(hostControl));
});
}
public void AttachShouldNotThrowWhenHostControlNullAndRegionContextSet()
{
MockPresentationRegion region = new MockPresentationRegion();
SyncRegionContextWithHostBehavior behavior = new SyncRegionContextWithHostBehavior() { Region = region };
behavior.Attach();
region.Context = "Changed";
}