aspnetcore/src/Components/test/E2ETest/Tests/EventTest.cs

313 lines
12 KiB
C#

// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using BasicTestApp;
using Microsoft.AspNetCore.Components.E2ETest.Infrastructure;
using Microsoft.AspNetCore.Components.E2ETest.Infrastructure.ServerFixtures;
using Microsoft.AspNetCore.E2ETesting;
using Microsoft.AspNetCore.Testing;
using OpenQA.Selenium;
using OpenQA.Selenium.Interactions;
using Xunit;
using Xunit.Abstractions;
namespace Microsoft.AspNetCore.Components.E2ETest.Tests
{
public class EventTest : ServerTestBase<ToggleExecutionModeServerFixture<Program>>
{
public EventTest(
BrowserFixture browserFixture,
ToggleExecutionModeServerFixture<Program> serverFixture,
ITestOutputHelper output)
: base(browserFixture, serverFixture, output)
{
}
protected override void InitializeAsyncCore()
{
Navigate(ServerPathBase, noReload: true);
Browser.MountTestComponent<EventBubblingComponent>();
}
[Fact]
public void FocusEvents_CanTrigger()
{
Browser.MountTestComponent<FocusEventComponent>();
var input = Browser.FindElement(By.Id("input"));
var output = Browser.FindElement(By.Id("output"));
Assert.Equal(string.Empty, output.Text);
// Focus the target, verify onfocusin is fired
input.Click();
Browser.Equal("onfocus,onfocusin,", () => output.Text);
// Focus something else, verify onfocusout is also fired
var other = Browser.FindElement(By.Id("other"));
other.Click();
Browser.Equal("onfocus,onfocusin,onblur,onfocusout,", () => output.Text);
}
[Fact]
public void MouseOverAndMouseOut_CanTrigger()
{
Browser.MountTestComponent<MouseEventComponent>();
var input = Browser.FindElement(By.Id("mouseover_input"));
var output = Browser.FindElement(By.Id("output"));
Assert.Equal(string.Empty, output.Text);
var other = Browser.FindElement(By.Id("other"));
// Mouse over the button and then back off
var actions = new Actions(Browser)
.MoveToElement(input)
.MoveToElement(other);
actions.Perform();
Browser.Equal("onmouseover,onmouseout,", () => output.Text);
}
[Fact]
public void MouseMove_CanTrigger()
{
Browser.MountTestComponent<MouseEventComponent>();
var input = Browser.FindElement(By.Id("mousemove_input"));
var output = Browser.FindElement(By.Id("output"));
Assert.Equal(string.Empty, output.Text);
// Move a little bit
var actions = new Actions(Browser)
.MoveToElement(input)
.MoveToElement(input, 10, 10);
actions.Perform();
Browser.Contains("onmousemove,", () => output.Text);
}
[Fact]
public void MouseDownAndMouseUp_CanTrigger()
{
Browser.MountTestComponent<MouseEventComponent>();
var input = Browser.FindElement(By.Id("mousedown_input"));
var output = Browser.FindElement(By.Id("output"));
Assert.Equal(string.Empty, output.Text);
var other = Browser.FindElement(By.Id("other"));
// Mousedown
var actions = new Actions(Browser).ClickAndHold(input);
actions.Perform();
Browser.Equal("onmousedown,", () => output.Text);
actions = new Actions(Browser).Release(input);
actions.Perform();
Browser.Equal("onmousedown,onmouseup,", () => output.Text);
}
[Fact]
public void Toggle_CanTrigger()
{
Browser.MountTestComponent<ToggleEventComponent>();
var detailsToggle = Browser.FindElement(By.Id("details-toggle"));
var output = Browser.FindElement(By.Id("output"));
Assert.Equal(string.Empty, output.Text);
// Click
var actions = new Actions(Browser).Click(detailsToggle);
actions.Perform();
Browser.Equal("ontoggle,", () => output.Text);
}
[Fact]
public void PointerDown_CanTrigger()
{
Browser.MountTestComponent<MouseEventComponent>();
var input = Browser.FindElement(By.Id("pointerdown_input"));
var output = Browser.FindElement(By.Id("output"));
Assert.Equal(string.Empty, output.Text);
var actions = new Actions(Browser).ClickAndHold(input);
actions.Perform();
Browser.Equal("onpointerdown", () => output.Text);
}
[Fact]
public void DragDrop_CanTrigger()
{
Browser.MountTestComponent<MouseEventComponent>();
var input = Browser.FindElement(By.Id("drag_input"));
var target = Browser.FindElement(By.Id("drop"));
var output = Browser.FindElement(By.Id("output"));
Assert.Equal(string.Empty, output.Text);
var actions = new Actions(Browser).DragAndDrop(input, target);
actions.Perform();
// drop doesn't seem to trigger in Selenium. But it's sufficient to determine "any" drag event works
Browser.Equal("ondragstart,", () => output.Text);
}
[Fact]
public void PreventDefault_AppliesToFormOnSubmitHandlers()
{
var appElement = Browser.MountTestComponent<EventPreventDefaultComponent>();
appElement.FindElement(By.Id("form-1-button")).Click();
Browser.Equal("Event was handled", () => appElement.FindElement(By.Id("event-handled")).Text);
}
[Fact]
public void PreventDefault_DotNotApplyByDefault()
{
var appElement = Browser.MountTestComponent<EventPreventDefaultComponent>();
appElement.FindElement(By.Id("form-2-button")).Click();
Assert.Contains("about:blank", Browser.Url);
}
[Fact]
[QuarantinedTest("https://github.com/dotnet/aspnetcore-internal/issues/1987")]
public void InputEvent_RespondsOnKeystrokes()
{
Browser.MountTestComponent<InputEventComponent>();
var input = Browser.FindElement(By.TagName("input"));
var output = Browser.FindElement(By.Id("test-result"));
Browser.Equal(string.Empty, () => output.Text);
SendKeysSequentially(input, "abcdefghijklmnopqrstuvwxyz");
Browser.Equal("abcdefghijklmnopqrstuvwxyz", () => output.Text);
input.SendKeys(Keys.Backspace);
Browser.Equal("abcdefghijklmnopqrstuvwxy", () => output.Text);
}
[Fact]
[QuarantinedTest("https://github.com/dotnet/aspnetcore/issues/23757")]
public void InputEvent_RespondsOnKeystrokes_EvenIfUpdatesAreLaggy()
{
// This test doesn't mean much on WebAssembly - it just shows that even if the CPU is locked
// up for a bit it doesn't cause typing to lose keystrokes. But when running server-side, this
// shows that network latency doesn't cause keystrokes to be lost even if:
// [1] By the time a keystroke event arrives, the event handler ID has since changed
// [2] We have the situation described under "the problem" at https://github.com/dotnet/aspnetcore/issues/8204#issuecomment-493986702
Browser.MountTestComponent<LaggyTypingComponent>();
var input = Browser.FindElement(By.TagName("input"));
var output = Browser.FindElement(By.Id("test-result"));
Browser.Equal(string.Empty, () => output.Text);
SendKeysSequentially(input, "abcdefg");
Browser.Equal("abcdefg", () => output.Text);
SendKeysSequentially(input, "hijklmn");
Browser.Equal("abcdefghijklmn", () => output.Text);
}
[Fact]
public void NonInteractiveElementWithDisabledAttributeDoesRespondToMouseEvents()
{
Browser.MountTestComponent<EventDisablingComponent>();
var element = Browser.FindElement(By.Id("disabled-div"));
var eventLog = Browser.FindElement(By.Id("event-log"));
Browser.Equal(string.Empty, () => eventLog.GetAttribute("value"));
element.Click();
Browser.Equal("Got event on div", () => eventLog.GetAttribute("value"));
}
[Theory]
[InlineData("#disabled-button")]
[InlineData("#disabled-button span")]
[InlineData("#disabled-textarea")]
public void InteractiveElementWithDisabledAttributeDoesNotRespondToMouseEvents(string elementSelector)
{
Browser.MountTestComponent<EventDisablingComponent>();
var element = Browser.FindElement(By.CssSelector(elementSelector));
var eventLog = Browser.FindElement(By.Id("event-log"));
Browser.Equal(string.Empty, () => eventLog.GetAttribute("value"));
element.Click();
// It's no use observing that the log is still empty, since maybe the UI just hasn't updated yet
// To be sure that the preceding action has no effect, we need to trigger a different action that does have an effect
Browser.FindElement(By.Id("enabled-button")).Click();
Browser.Equal("Got event on enabled button", () => eventLog.GetAttribute("value"));
}
[Fact]
public void EventDuringBatchRendering_CanTriggerDOMEvents()
{
Browser.MountTestComponent<EventDuringBatchRendering>();
var input = Browser.FindElements(By.CssSelector("#reversible-list input"))[0];
var eventLog = Browser.FindElement(By.Id("event-log"));
SendKeysSequentially(input, "abc");
Browser.Equal("abc", () => input.GetAttribute("value"));
Browser.Equal(
"Change event on item First with value a\n" +
"Change event on item First with value ab\n" +
"Change event on item First with value abc",
() => eventLog.Text.Trim().Replace("\r\n", "\n"));
}
[Fact]
public void EventDuringBatchRendering_CannotTriggerJSInterop()
{
Browser.MountTestComponent<EventDuringBatchRendering>();
var errorLog = Browser.FindElement(By.Id("web-component-error-log"));
Browser.FindElement(By.Id("add-web-component")).Click();
var expectedMessage = _serverFixture.ExecutionMode == ExecutionMode.Client
? "Assertion failed - heap is currently locked"
: "There was an exception invoking 'SomeMethodThatDoesntNeedToExistForThisTest' on assembly 'SomeAssembly'";
Browser.Contains(expectedMessage, () => errorLog.Text);
}
[Fact]
public void RenderAttributesBeforeConnectedCallBack()
{
Browser.MountTestComponent<RenderAttributesBeforeConnectedCallback>();
var element = Browser.FindElement(By.TagName("custom-web-component-data-from-attribute"));
var expectedContent = "success";
Browser.Contains(expectedContent, () => element.Text);
}
void SendKeysSequentially(IWebElement target, string text)
{
// Calling it for each character works around some chars being skipped
// https://stackoverflow.com/a/40986041
foreach (var c in text)
{
target.SendKeys(c.ToString());
}
}
}
}