public async Task When_NoItemTemplate()
{
var SUT = new ItemsControl()
{
ItemTemplate = null,
ItemTemplateSelector = null,
};
WindowHelper.WindowContent = SUT;
await WindowHelper.WaitForIdle();
var source = new[] {
"Item 1"
};
SUT.ItemsSource = source;
ContentPresenter cp = null;
await WindowHelper.WaitFor(() => (cp = SUT.ContainerFromItem(source[0]) as ContentPresenter) != null);
Assert.AreEqual("Item 1", cp.Content);
var tb = cp.FindFirstChild <TextBlock>();
Assert.IsNotNull(tb);
Assert.AreEqual("Item 1", tb.Text);
}
public async Task When_ContainerSet_Then_ContentShouldBeSet()
{
var resources = new TestsResources();
var SUT = new ItemsControl
{
ItemTemplate = TextBlockItemTemplate
};
WindowHelper.WindowContent = SUT;
await WindowHelper.WaitForIdle();
var source = new[] {
"item 0",
};
SUT.ItemsSource = source;
ContentPresenter cp = null;
await WindowHelper.WaitFor(() => (cp = SUT.ContainerFromItem(source[0]) as ContentPresenter) != null);
Assert.AreEqual("item 0", cp.Content);
var tb = cp.FindFirstChild <TextBlock>();
Assert.IsNotNull(tb);
Assert.AreEqual("item 0", tb.Text);
}
public async Task When_SpecifyingDisplayMemberPath_Then_ContentShouldBeSet()
{
var resources = new TestsResources();
var SUT = new ItemsControl
{
ItemTemplate = TextBlockItemTemplate,
DisplayMemberPath = "DisplayName"
};
WindowHelper.WindowContent = SUT;
await WindowHelper.WaitForIdle();
var source = new[]
{
new ItemForDisplayMemberPath {
DisplayName = "item 0"
},
new ItemForDisplayMemberPath {
DisplayName = "item 1"
},
new ItemForDisplayMemberPath {
DisplayName = "item 2"
}
};
SUT.ItemsSource = source;
async Task Assert(int index, string s)
{
ContentPresenter cp = null;
await WindowHelper.WaitFor(() => (cp = SUT.ContainerFromItem(source[index]) as ContentPresenter) != null);
cp.Content.Should().Be(s, $"ContainerFromItem() at index {index}");
var tb = cp.FindFirstChild <TextBlock>();
tb.Should().NotBeNull($"Item at index {index}");
tb.Text.Should().Be(s, $"TextBlock.Text at index {index}");
}
using var _ = new AssertionScope();
await Assert(0, "item 0");
await Assert(1, "item 1");
await Assert(2, "item 2");
}
