How to use ElementHandleXPathTests method of PuppeteerSharp.Tests.ElementHandleTests.ElementHandleXPathTests class

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ElementHandleXPathTests.cs

Source: ElementHandleXPathTests.cs Github

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1using System.Threading.Tasks;
2using PuppeteerSharp.Tests.Attributes;
3using PuppeteerSharp.Xunit;
4using Xunit;
5using Xunit.Abstractions;
6
7namespace PuppeteerSharp.Tests.ElementHandleTests
8{
9    [Collection(TestConstants.TestFixtureCollectionName)]
10    public class ElementHandleXPathTests : PuppeteerPageBaseTest
11    {
12        public ElementHandleXPathTests(ITestOutputHelper output) : base(output)
13        {
14        }
15
16        [PuppeteerTest("queryselector.spec.ts", "ElementHandle.$x", "should query existing element")]
17        [PuppeteerFact]
18        public async Task ShouldQueryExistingElement()
19        {
20            await Page.GoToAsync(TestConstants.ServerUrl + "/playground.html");
21            await Page.SetContentAsync("<html><body><div class=\"second\"><div class=\"inner\">A</div></div></body></html>");
22            var html = await Page.QuerySelectorAsync("html");
23            var second = await html.XPathAsync("./body/div[contains(@class, 'second')]");
24            var inner = await second[0].XPathAsync("./div[contains(@class, 'inner')]");
25            var content = await Page.EvaluateFunctionAsync<string>("e => e.textContent", inner[0]);
26            Assert.Equal("A", content);
27        }
28
29        [PuppeteerTest("queryselector.spec.ts", "ElementHandle.$x", "should return null for non-existing element")]
30        [PuppeteerFact]
31        public async Task ShouldReturnNullForNonExistingElement()
32        {
33            await Page.SetContentAsync("<html><body><div class=\"second\"><div class=\"inner\">B</div></div></body></html>");
34            var html = await Page.QuerySelectorAsync("html");
35            var second = await html.XPathAsync("/div[contains(@class, 'third')]");
36            Assert.Empty(second);
37        }
38    }
39}
40
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