Update the resource selector when editors change

1 files changed, 43 insertions, 0 deletions

diff --git a/Xamarin.PropertyEditing.Tests/BrushPropertyViewModelTests.cs b/Xamarin.PropertyEditing.Tests/BrushPropertyViewModelTests.cs
index 6a53102..952266b 100644
--- a/Xamarin.PropertyEditing.Tests/BrushPropertyViewModelTests.cs
+++ b/Xamarin.PropertyEditing.Tests/BrushPropertyViewModelTests.cs
@@ -30,5 +30,48 @@ namespace Xamarin.PropertyEditing.Tests
 			vm.Value = GetRandomTestValue();
 			Assert.IsTrue (changed);
 		}
+
+		[Test]
+		public void ChangingEditorsUpdatesResources ()
+		{
+			var mockProperty = new Mock<IPropertyInfo> ();
+			mockProperty.SetupGet (pi => pi.Type).Returns (typeof (CommonBrush));
+			var mockEditor = new MockObjectEditor (mockProperty.Object);
+			var vm = new BrushPropertyViewModel (TargetPlatform.Default, mockProperty.Object, new [] { mockEditor });
+			vm.ResourceProvider = new MockResourceProvider ();
+			var changed = false;
+			vm.PropertyChanged += (s, e) => {
+				if (e.PropertyName == nameof (BrushPropertyViewModel.ResourceSelector)) {
+					changed = true;
+				}
+			};
+			var rs1 = vm.ResourceSelector;
+			vm.Editors.Add (new MockObjectEditor ());
+			var rs2 = vm.ResourceSelector;
+			Assert.IsTrue (changed);
+			Assert.AreNotEqual (rs1, rs2);
+		}
+
+		[Test]
+		public void ChangingResourceProviderUpdatesResources ()
+		{
+			var mockProperty = new Mock<IPropertyInfo> ();
+			mockProperty.SetupGet (pi => pi.Type).Returns (typeof (CommonBrush));
+			var mockEditor = new MockObjectEditor (mockProperty.Object);
+			var vm = new BrushPropertyViewModel (TargetPlatform.Default, mockProperty.Object, new [] { mockEditor });
+			
+			var changed = false;
+			vm.PropertyChanged += (s, e) => {
+				if (e.PropertyName == nameof (BrushPropertyViewModel.ResourceSelector)) {
+					changed = true;
+				}
+			};
+			var rs1 = vm.ResourceSelector;
+			vm.ResourceProvider = new MockResourceProvider ();
+			var rs2 = vm.ResourceSelector;
+			Assert.IsTrue (changed);
+			Assert.IsNull (rs1);
+			Assert.AreNotEqual (rs1, rs2);
+		}
 	}
 }