public async Task RenderRootComponentAsync_ReportsErrorDuringOnParameterSetAsync()
{
// Arrange
var expected = new TimeZoneNotFoundException();
var renderer = new TestRenderer();
var component = new TestComponent {
OnParametersSetAsyncLogic = _ => Task.FromException(expected)
};
// Act & Assert
var componentId = renderer.AssignRootComponentId(component);
var actual = await Assert.ThrowsAsync <TimeZoneNotFoundException>(() => renderer.RenderRootComponentAsync(componentId));
// Assert
Assert.Same(expected, actual);
}
public async Task Virtualize_ThrowsWhenGivenMultipleItemSources()
{
var rootComponent = new VirtualizeTestHostcomponent
{
InnerContent = BuildVirtualize(10f, EmptyItemsProvider <int>, new List <int>())
};
var serviceProvider = new ServiceCollection()
.AddTransient((sp) => Mock.Of <IJSRuntime>())
.BuildServiceProvider();
var testRenderer = new TestRenderer(serviceProvider);
var componentId = testRenderer.AssignRootComponentId(rootComponent);
var ex = await Assert.ThrowsAsync <InvalidOperationException>(async() => await testRenderer.RenderRootComponentAsync(componentId));
Assert.Contains("can only accept one item source from its parameters", ex.Message);
}
public async Task Virtualize_ThrowsWhenGivenNoItemSources()
{
var rootComponent = new VirtualizeTestHostcomponent
{
InnerContent = BuildVirtualize <int>(10f, null, null)
};
var serviceProvider = new ServiceCollection()
.AddTransient((sp) => Mock.Of <IJSRuntime>())
.BuildServiceProvider();
var testRenderer = new TestRenderer(serviceProvider);
var componentId = testRenderer.AssignRootComponentId(rootComponent);
var ex = await Assert.ThrowsAsync <InvalidOperationException>(async() => await testRenderer.RenderRootComponentAsync(componentId));
Assert.Contains("parameters to be specified and non-null", ex.Message);
}
public async Task Virtualize_ThrowsWhenGivenNonPositiveItemSize()
{
var rootComponent = new VirtualizeTestHostcomponent
{
InnerContent = BuildVirtualize(0f, EmptyItemsProvider <int>, null)
};
var serviceProvider = new ServiceCollection()
.AddTransient((sp) => Mock.Of <IJSRuntime>())
.BuildServiceProvider();
var testRenderer = new TestRenderer(serviceProvider);
var componentId = testRenderer.AssignRootComponentId(rootComponent);
var ex = await Assert.ThrowsAsync <InvalidOperationException>(async() => await testRenderer.RenderRootComponentAsync(componentId));
Assert.Contains("requires a positive value for parameter", ex.Message);
}