public async Task When_Binding_xLoad_Nested_With_ElementStub_LoadCount()
{
//
// This test is the same as When_Binding_xLoad_Nested, but with explicit querying
// of ElementStub instances. This prevents the GC from collecting instances, but allows
// for counting Load/Unload counts properly.
//
var SUT = new Binding_xLoad_Nested();
Assert.IsNull(SUT.tb01);
Assert.IsNull(SUT.tb02);
Assert.IsNull(SUT.tb03);
Assert.IsNull(SUT.tb04);
Assert.IsNull(SUT.tb05);
Assert.IsNull(SUT.tb06);
Assert.AreEqual(0, SUT.TopLevelVisiblity1GetCount);
Assert.AreEqual(0, SUT.TopLevelVisiblity1SetCount);
Assert.AreEqual(0, SUT.TopLevelVisiblity2GetCount);
Assert.AreEqual(0, SUT.TopLevelVisiblity2SetCount);
Assert.AreEqual(0, SUT.TopLevelVisiblity3GetCount);
Assert.AreEqual(0, SUT.TopLevelVisiblity3SetCount);
var grid = new Grid();
TestServices.WindowHelper.WindowContent = grid;
grid.Children.Add(SUT);
Assert.IsNull(SUT.tb01);
Assert.IsNull(SUT.tb02);
Assert.IsNull(SUT.tb03);
Assert.IsNull(SUT.tb04);
Assert.IsNull(SUT.tb05);
Assert.IsNull(SUT.tb06);
Assert.AreEqual(2, SUT.TopLevelVisiblity1GetCount);
Assert.AreEqual(0, SUT.TopLevelVisiblity1SetCount);
var tb01Stub = SUT.FindFirstChild <ElementStub>(e => e.Name == "tb01") !;
var tb02Stub = SUT.FindFirstChild <ElementStub>(e => e.Name == "tb02") !;
var panel01Stub = SUT.FindFirstChild <ElementStub>(e => e.Name == "panel01") !;
var panel03Stub = SUT.FindFirstChild <ElementStub>(e => e.Name == "panel03") !;
var tb01StubChangedCount = 0;
tb01Stub.MaterializationChanged += _ => tb01StubChangedCount++;
var tb02StubChangedCount = 0;
tb02Stub.MaterializationChanged += _ => tb02StubChangedCount++;
var panel01StubChangedCount = 0;
panel01Stub.MaterializationChanged += _ => panel01StubChangedCount++;
var panel03StubChangedCount = 0;
panel03Stub.MaterializationChanged += _ => panel03StubChangedCount++;
SUT.TopLevelVisiblity1 = true;
await Task.Yield();
Assert.IsNotNull(SUT.tb01);
Assert.IsNotNull(SUT.tb02);
Assert.IsNull(SUT.tb03);
Assert.IsNull(SUT.tb04);
Assert.IsNull(SUT.tb05);
Assert.IsNull(SUT.tb06);
Assert.IsFalse(panel03Stub.Load);
Assert.AreEqual(1, tb01StubChangedCount);
Assert.AreEqual(1, tb02StubChangedCount);
Assert.AreEqual(0, panel01StubChangedCount);
SUT.TopLevelVisiblity2 = true;
await Task.Yield();
Assert.IsNotNull(SUT.tb01);
Assert.IsNotNull(SUT.tb02);
Assert.IsNotNull(SUT.tb03);
Assert.IsNull(SUT.tb04);
Assert.IsNotNull(SUT.tb05);
Assert.IsNull(SUT.tb06);
Assert.IsTrue(panel03Stub.Load);
Assert.AreEqual(1, tb01StubChangedCount);
Assert.AreEqual(1, tb02StubChangedCount);
Assert.AreEqual(1, panel01StubChangedCount);
var panel02Stub = SUT.FindFirstChild <ElementStub>(e => e.Name == "panel02") !;
var panel02StubChangedCount = 0;
panel02Stub.MaterializationChanged += _ => panel02StubChangedCount++;
SUT.TopLevelVisiblity3 = true;
await Task.Yield();
Assert.IsNotNull(SUT.tb01);
Assert.IsNotNull(SUT.tb02);
Assert.IsNotNull(SUT.tb03);
Assert.IsNotNull(SUT.panel02);
Assert.IsNotNull(SUT.tb04);
Assert.IsNotNull(SUT.tb05);
Assert.IsNotNull(SUT.tb06);
Assert.IsTrue(panel03Stub.Load);
Assert.AreEqual(1, tb01StubChangedCount);
Assert.AreEqual(1, tb02StubChangedCount);
Assert.AreEqual(1, panel01StubChangedCount);
Assert.AreEqual(1, panel02StubChangedCount);
SUT.TopLevelVisiblity3 = false;
await Task.Yield();
Assert.IsNotNull(SUT.tb01);
Assert.IsNotNull(SUT.tb02);
Assert.IsNotNull(SUT.tb03);
Assert.IsNotNull(SUT.panel01);
await AssertIsNullAsync(() => SUT.panel02);
await AssertIsNullAsync(() => SUT.tb04);
Assert.IsNotNull(SUT.tb05);
await AssertIsNullAsync(() => SUT.tb06);
Assert.IsTrue(panel03Stub.Load);
Assert.AreEqual(1, tb01StubChangedCount);
Assert.AreEqual(1, tb02StubChangedCount);
Assert.AreEqual(1, panel01StubChangedCount);
Assert.AreEqual(2, panel02StubChangedCount);
SUT.TopLevelVisiblity2 = false;
await Task.Yield();
Assert.IsNotNull(SUT.tb01);
Assert.IsNotNull(SUT.tb02);
await AssertIsNullAsync(() => SUT.panel01);
await AssertIsNullAsync(() => SUT.tb03);
await AssertIsNullAsync(() => SUT.panel02);
await AssertIsNullAsync(() => SUT.tb04);
await AssertIsNullAsync(() => SUT.tb06);
Assert.IsFalse(panel03Stub.Load);
await AssertIsNullAsync(() => SUT.panel03);
await AssertIsNullAsync(() => SUT.tb05);
Assert.AreEqual(1, tb01StubChangedCount);
Assert.AreEqual(1, tb02StubChangedCount);
Assert.AreEqual(2, panel01StubChangedCount);
Assert.AreEqual(2, panel02StubChangedCount);
SUT.TopLevelVisiblity1 = false;
await Task.Yield();
await AssertIsNullAsync(() => SUT.tb01);
await AssertIsNullAsync(() => SUT.tb02);
await AssertIsNullAsync(() => SUT.panel01);
await AssertIsNullAsync(() => SUT.tb03);
await AssertIsNullAsync(() => SUT.panel02);
await AssertIsNullAsync(() => SUT.tb04);
Assert.IsFalse(panel03Stub.Load);
await AssertIsNullAsync(() => SUT.panel03);
await AssertIsNullAsync(() => SUT.tb05);
await AssertIsNullAsync(() => SUT.tb06);
Assert.AreEqual(2, tb01StubChangedCount);
Assert.AreEqual(2, tb02StubChangedCount);
Assert.AreEqual(2, panel01StubChangedCount);
Assert.AreEqual(2, panel02StubChangedCount);
}
public async Task When_Binding_xLoad_Nested()
{
var SUT = new Binding_xLoad_Nested();
Assert.IsNull(SUT.tb01);
Assert.IsNull(SUT.tb02);
Assert.IsNull(SUT.tb03);
Assert.IsNull(SUT.tb04);
Assert.IsNull(SUT.tb05);
Assert.IsNull(SUT.tb06);
Assert.AreEqual(0, SUT.TopLevelVisiblity1GetCount);
Assert.AreEqual(0, SUT.TopLevelVisiblity1SetCount);
Assert.AreEqual(0, SUT.TopLevelVisiblity2GetCount);
Assert.AreEqual(0, SUT.TopLevelVisiblity2SetCount);
Assert.AreEqual(0, SUT.TopLevelVisiblity3GetCount);
Assert.AreEqual(0, SUT.TopLevelVisiblity3SetCount);
var grid = new Grid();
TestServices.WindowHelper.WindowContent = grid;
grid.Children.Add(SUT);
Assert.IsNull(SUT.tb01);
Assert.IsNull(SUT.tb02);
Assert.IsNull(SUT.tb03);
Assert.IsNull(SUT.tb04);
Assert.IsNull(SUT.tb05);
Assert.IsNull(SUT.tb06);
Assert.AreEqual(2, SUT.TopLevelVisiblity1GetCount);
Assert.AreEqual(0, SUT.TopLevelVisiblity1SetCount);
SUT.TopLevelVisiblity1 = true;
await Task.Yield();
Assert.IsNotNull(SUT.tb01);
Assert.IsNotNull(SUT.tb02);
Assert.IsNull(SUT.tb03);
Assert.IsNull(SUT.tb04);
Assert.IsNull(SUT.tb05);
Assert.IsNull(SUT.tb06);
SUT.TopLevelVisiblity2 = true;
await Task.Yield();
Assert.IsNotNull(SUT.tb01);
Assert.IsNotNull(SUT.tb02);
Assert.IsNotNull(SUT.tb03);
Assert.IsNull(SUT.tb04);
Assert.IsNotNull(SUT.tb05);
Assert.IsNull(SUT.tb06);
SUT.TopLevelVisiblity3 = true;
Assert.IsNotNull(SUT.tb01);
Assert.IsNotNull(SUT.tb02);
Assert.IsNotNull(SUT.tb03);
Assert.IsNotNull(SUT.panel02);
Assert.IsNotNull(SUT.tb04);
Assert.IsNotNull(SUT.tb05);
Assert.IsNotNull(SUT.tb06);
SUT.TopLevelVisiblity3 = false;
await Task.Yield();
Assert.IsNotNull(SUT.tb01);
Assert.IsNotNull(SUT.tb02);
Assert.IsNotNull(SUT.tb03);
Assert.IsNotNull(SUT.panel01);
await AssertIsNullAsync(() => SUT.panel02);
await AssertIsNullAsync(() => SUT.tb04);
Assert.IsNotNull(SUT.tb05);
await AssertIsNullAsync(() => SUT.tb06);
SUT.TopLevelVisiblity2 = false;
await Task.Yield();
Assert.IsNotNull(SUT.tb01);
Assert.IsNotNull(SUT.tb02);
await AssertIsNullAsync(() => SUT.panel01);
await AssertIsNullAsync(() => SUT.tb03);
await AssertIsNullAsync(() => SUT.panel02);
await AssertIsNullAsync(() => SUT.tb04);
await AssertIsNullAsync(() => SUT.tb06);
await AssertIsNullAsync(() => SUT.panel03);
await AssertIsNullAsync(() => SUT.tb05);
SUT.TopLevelVisiblity1 = false;
await AssertIsNullAsync(() => SUT.tb01);
await AssertIsNullAsync(() => SUT.tb02);
await AssertIsNullAsync(() => SUT.panel01);
await AssertIsNullAsync(() => SUT.tb03);
await AssertIsNullAsync(() => SUT.panel02);
await AssertIsNullAsync(() => SUT.tb04);
await AssertIsNullAsync(() => SUT.panel03);
await AssertIsNullAsync(() => SUT.tb05);
await AssertIsNullAsync(() => SUT.tb06);
}
