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PlaywrightAssertions

Playwright 为你提供了 Web 优先断言以及创建断言的便捷方法，这些断言将等待并重试，直到满足预期条件。

¥Playwright gives you Web-First Assertions with convenience methods for creating assertions that will wait and retry until the expected condition is met.

考虑以下示例：

¥Consider the following example:

using Microsoft.Playwright;
using Microsoft.Playwright.MSTest;

namespace PlaywrightTests;

[TestClass]
public class ExampleTests : PageTest
{
    [TestMethod]
    public async Task StatusBecomesSubmitted()
    {
        await Page.GetByRole(AriaRole.Button, new() { Name = "Submit" }).ClickAsync();
        await Expect(Page.Locator(".status")).ToHaveTextAsync("Submitted");
    }
}

Playwright 将使用选择器 .status 重新测试节点，直到获取的节点具有 "Submitted" 文本。它将重新获取节点并一遍又一遍地检查它，直到满足条件或达到超时。你可以将此超时作为一个选项传递。

¥Playwright will be re-testing the node with the selector .status until fetched Node has the "Submitted" text. It will be re-fetching the node and checking it over and over, until the condition is met or until the timeout is reached. You can pass this timeout as an option.

默认情况下，断言超时设置为 5 秒。

¥By default, the timeout for assertions is set to 5 seconds.

方法​

¥Methods

Expect(response)​

Added in: v1.18 playwrightAssertions.Expect(response)

为给定的 APIResponse 创建一个 APIResponseAssertions 对象。

¥Creates a APIResponseAssertions object for the given APIResponse.

用法

¥Usage

参数

¥Arguments

用于断言的 APIResponse 对象。

¥APIResponse object to use for assertions.

返回

¥Returns

Expect(locator)​

Added in: v1.18 playwrightAssertions.Expect(locator)

为给定的 Locator 创建一个 LocatorAssertions 对象。

¥Creates a LocatorAssertions object for the given Locator.

用法

¥Usage

await Expect(locator).ToBeVisibleAsync();

参数

¥Arguments

用于断言的 Locator 对象。

¥Locator object to use for assertions.

返回

¥Returns

Expect(page)​

Added in: v1.18 playwrightAssertions.Expect(page)

为给定的 Page 创建一个 PageAssertions 对象。

¥Creates a PageAssertions object for the given Page.

用法

¥Usage

await Expect(Page).ToHaveTitleAsync("News");

参数

¥Arguments

用于断言的 Page 对象。

¥Page object to use for assertions.

返回

¥Returns