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How to use LocatorAssertions class of Microsoft.Playwright.Core package

Best Playwright-dotnet code snippet using Microsoft.Playwright.Core.LocatorAssertions

LocatorAssertions.cs

Source:LocatorAssertions.cs

...27using System.Threading.Tasks;28using Microsoft.Playwright.Transport.Protocol;29namespace Microsoft.Playwright.Core30{31    internal class LocatorAssertions : AssertionsBase, ILocatorAssertions32    {33        public LocatorAssertions(ILocator locator, bool isNot) : base(locator, isNot)34        {35        }36        public ILocatorAssertions Not => new LocatorAssertions(ActualLocator, !IsNot);37        public Task ToBeCheckedAsync(LocatorAssertionsToBeCheckedOptions options = null)38        {39            var isChecked = options == null || options.Checked == null || options.Checked == true;40            return ExpectTrueAsync(isChecked ? "to.be.checked" : "to.be.unchecked", $"Locator expected {(!isChecked ? "not " : string.Empty)}to be checked", ConvertToFrameExpectOptions(options));41        }42        public Task ToBeDisabledAsync(LocatorAssertionsToBeDisabledOptions options = null) => ExpectTrueAsync("to.be.disabled", "Locator expected to be disabled", ConvertToFrameExpectOptions(options));43        public Task ToBeEditableAsync(LocatorAssertionsToBeEditableOptions options = null) => ExpectTrueAsync("to.be.editable", "Locator expected to be editable", ConvertToFrameExpectOptions(options));44        public Task ToBeEmptyAsync(LocatorAssertionsToBeEmptyOptions options = null) => ExpectTrueAsync("to.be.empty", "Locator expected to be empty", ConvertToFrameExpectOptions(options));45        public Task ToBeEnabledAsync(LocatorAssertionsToBeEnabledOptions options = null) => ExpectTrueAsync("to.be.enabled", "Locator expected to be enabled", ConvertToFrameExpectOptions(options));46        public Task ToBeFocusedAsync(LocatorAssertionsToBeFocusedOptions options = null) => ExpectTrueAsync("to.be.focused", "Locator expected to be focused", ConvertToFrameExpectOptions(options));47        public Task ToBeHiddenAsync(LocatorAssertionsToBeHiddenOptions options = null) => ExpectTrueAsync("to.be.hidden", "Locator expected to be hidden", ConvertToFrameExpectOptions(options));48        public Task ToBeVisibleAsync(LocatorAssertionsToBeVisibleOptions options = null) => ExpectTrueAsync("to.be.visible", "Locator expected to be visible", ConvertToFrameExpectOptions(options));49        private Task ExpectTrueAsync(string expression, string message, FrameExpectOptions options)50        {51            ExpectedTextValue[] expectedText = null;52            return ExpectImplAsync(expression, expectedText, null, message, options);53        }54        public Task ToContainTextAsync(string expected, LocatorAssertionsToContainTextOptions options = null) =>55            ExpectImplAsync("to.have.text", new ExpectedTextValue() { String = expected, MatchSubstring = true, NormalizeWhiteSpace = true }, expected, "Locator expected to contain text", ConvertToFrameExpectOptions(options));56        public Task ToContainTextAsync(Regex expected, LocatorAssertionsToContainTextOptions options = null) =>57            ExpectImplAsync("to.have.text", ExpectedRegex(expected, new() { MatchSubstring = true, NormalizeWhiteSpace = true }), expected, "Locator expected text matching regex", ConvertToFrameExpectOptions(options));58        public Task ToContainTextAsync(IEnumerable<string> expected, LocatorAssertionsToContainTextOptions options = null) =>59            ExpectImplAsync("to.contain.text.array", expected.Select(text => new ExpectedTextValue() { String = text, MatchSubstring = true, NormalizeWhiteSpace = true }).ToArray(), expected, "Locator expected to contain text", ConvertToFrameExpectOptions(options));60        public Task ToContainTextAsync(IEnumerable<Regex> expected, LocatorAssertionsToContainTextOptions options = null) =>61            ExpectImplAsync("to.contain.text.array", expected.Select(regex => ExpectedRegex(regex, new() { MatchSubstring = true, NormalizeWhiteSpace = true })).ToArray(), expected, "Locator expected text matching regex", ConvertToFrameExpectOptions(options));62        public Task ToHaveAttributeAsync(string name, string value, LocatorAssertionsToHaveAttributeOptions options = null) =>63            ToHaveAttributeAsync(name, new() { String = value }, value, options);64        public Task ToHaveAttributeAsync(string name, Regex value, LocatorAssertionsToHaveAttributeOptions options = null) =>65            ToHaveAttributeAsync(name, ExpectedRegex(value), value, options);66        private Task ToHaveAttributeAsync(string name, ExpectedTextValue expectedText, object expectedValue, LocatorAssertionsToHaveAttributeOptions options = null)67        {68            var commonOptions = ConvertToFrameExpectOptions(options);69            commonOptions.ExpressionArg = name;70            string message = $"Locator expected to have attribute '{name}'";71            if (expectedValue is Regex)72            {73                message += " matching regex";74            }75            return ExpectImplAsync("to.have.attribute", expectedText, expectedValue, message, commonOptions);76        }77        public Task ToHaveClassAsync(string expected, LocatorAssertionsToHaveClassOptions options = null) =>78            ExpectImplAsync("to.have.class", new ExpectedTextValue() { String = expected }, expected, "Locator expected to have class", ConvertToFrameExpectOptions(options));79        public Task ToHaveClassAsync(Regex expected, LocatorAssertionsToHaveClassOptions options = null) =>80            ExpectImplAsync("to.have.class", ExpectedRegex(expected), expected, "Locator expected matching regex", ConvertToFrameExpectOptions(options));81        public Task ToHaveClassAsync(IEnumerable<string> expected, LocatorAssertionsToHaveClassOptions options = null) =>82            ExpectImplAsync("to.have.class.array", expected.Select(text => new ExpectedTextValue() { String = text }).ToArray(), expected, "Locator expected to have class", ConvertToFrameExpectOptions(options));83        public Task ToHaveClassAsync(IEnumerable<Regex> expected, LocatorAssertionsToHaveClassOptions options = null) =>84            ExpectImplAsync("to.have.class.array", expected.Select(regex => ExpectedRegex(regex)).ToArray(), expected, "Locator expected to have class matching regex", ConvertToFrameExpectOptions(options));85        public Task ToHaveCountAsync(int count, LocatorAssertionsToHaveCountOptions options = null)86        {87            ExpectedTextValue[] expectedText = null;88            var commonOptions = ConvertToFrameExpectOptions(options);89            commonOptions.ExpectedNumber = count;90            return ExpectImplAsync("to.have.count", expectedText, count, "Locator expected to have count", commonOptions);91        }92        public Task ToHaveCSSAsync(string name, string value, LocatorAssertionsToHaveCSSOptions options = null) =>93            ToHaveCSSAsync(name, new ExpectedTextValue() { String = value }, value, options);94        public Task ToHaveCSSAsync(string name, Regex value, LocatorAssertionsToHaveCSSOptions options = null) =>95            ToHaveCSSAsync(name, ExpectedRegex(value), value, options);96        internal Task ToHaveCSSAsync(string name, ExpectedTextValue expectedText, object expectedValue, LocatorAssertionsToHaveCSSOptions options = null)97        {98            var commonOptions = ConvertToFrameExpectOptions(options);99            commonOptions.ExpressionArg = name;100            var message = $"Locator expected to have CSS property '{name}'";101            if (expectedValue is Regex)102            {103                message += " matching regex";104            }105            return ExpectImplAsync("to.have.css", expectedText, expectedValue, message, commonOptions);106        }107        public Task ToHaveIdAsync(string id, LocatorAssertionsToHaveIdOptions options = null) =>108            ExpectImplAsync("to.have.id", new ExpectedTextValue() { String = id }, id, "Locator expected to have ID", ConvertToFrameExpectOptions(options));109        public Task ToHaveIdAsync(Regex id, LocatorAssertionsToHaveIdOptions options = null) =>110            ExpectImplAsync("to.have.id", ExpectedRegex(id), id, "Locator expected to have ID", ConvertToFrameExpectOptions(options));111        public Task ToHaveJSPropertyAsync(string name, object value, LocatorAssertionsToHaveJSPropertyOptions options = null)112        {113            var commonOptions = ConvertToFrameExpectOptions(options);114            commonOptions.ExpressionArg = name;115            commonOptions.ExpectedValue = ScriptsHelper.SerializedArgument(value);116            ExpectedTextValue[] expectedText = null;117            return ExpectImplAsync("to.have.property", expectedText, value, $"Locator expected to have JavaScript property '{name}'", commonOptions);118        }119        public Task ToHaveTextAsync(string expected, LocatorAssertionsToHaveTextOptions options = null) =>120            ExpectImplAsync("to.have.text", new ExpectedTextValue() { String = expected, NormalizeWhiteSpace = true }, expected, "Locator expected to have text", ConvertToFrameExpectOptions(options));121        public Task ToHaveTextAsync(Regex expected, LocatorAssertionsToHaveTextOptions options = null) =>122        ExpectImplAsync("to.have.text", ExpectedRegex(expected, new() { NormalizeWhiteSpace = true }), expected, "Locator expected to have text matching regex", ConvertToFrameExpectOptions(options));123        public Task ToHaveTextAsync(IEnumerable<string> expected, LocatorAssertionsToHaveTextOptions options = null) =>124            ExpectImplAsync("to.have.text.array", expected.Select(text => new ExpectedTextValue() { String = text, NormalizeWhiteSpace = true }).ToArray(), expected, "Locator expected to have text", ConvertToFrameExpectOptions(options));125        public Task ToHaveTextAsync(IEnumerable<Regex> expected, LocatorAssertionsToHaveTextOptions options = null) =>126            ExpectImplAsync("to.have.text.array", expected.Select(regex => ExpectedRegex(regex, new() { NormalizeWhiteSpace = true })).ToArray(), expected, "Locator expected to have text", ConvertToFrameExpectOptions(options));127        public Task ToHaveValueAsync(string value, LocatorAssertionsToHaveValueOptions options = null) =>128            ExpectImplAsync("to.have.value", new ExpectedTextValue() { String = value }, value, "Locator expected to have value", ConvertToFrameExpectOptions(options));129        public Task ToHaveValueAsync(Regex value, LocatorAssertionsToHaveValueOptions options = null) =>130            ExpectImplAsync("to.have.value", ExpectedRegex(value), value, "Locator expected to have value matching regex", ConvertToFrameExpectOptions(options));131    }132}...

Assertions.cs

Source:Assertions.cs

2namespace Microsoft.Playwright3{4    public static class Assertions5    {6        public static ILocatorAssertions Expect(ILocator locator) => new LocatorAssertions(locator, false);7        public static IPageAssertions Expect(IPage page) => new PageAssertions(page, false);8    }9}...

LocatorAssertions

Using AI Code Generation

1using Microsoft.Playwright;2var playwright = await Playwright.CreateAsync();3var browser = await playwright.Chromium.LaunchAsync();4var context = await browser.NewContextAsync();5var page = await context.NewPageAsync();6var locator = page.Locator("input[title='Search']");7await locator.AssertCountAsync(1);8await locator.AssertCountAsync(2);9await page.CloseAsync();10await context.CloseAsync();11await browser.CloseAsync();12await playwright.DisposeAsync();

LocatorAssertions

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Core;3using Microsoft.Playwright.Helpers;4using Microsoft.Playwright.NUnit;5using NUnit.Framework;6using System;7using System.Collections.Generic;8using System.Linq;9using System.Text;10using System.Threading.Tasks;11{12    {13        private IPlaywright _playwright;14        private IBrowser _browser;15        private IPage _page;16        private LocatorAssertions _locatorAssertions;17        public async Task Setup()18        {19            _playwright = await Playwright.CreateAsync();20            _browser = await _playwright.Chromium.LaunchAsync(new LaunchOptions21            {22            });23            _page = await _browser.NewPageAsync();24            _locatorAssertions = new LocatorAssertions(_page);25        }26        public async Task Test1()27        {

LocatorAssertions

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Core;3using Microsoft.Playwright.Core.Helpers;4using Microsoft.Playwright.Core.Tests.Helpers;5using Microsoft.Playwright.NUnit;6using NUnit.Framework;7using System;8using System.Collections.Generic;9using System.Linq;10using System.Text;11using System.Threading.Tasks;12{13    {14        private static readonly LocatorAssertions<Page> LocatorAssertions = new LocatorAssertions<Page>();15        private static readonly LocatorAssertions<Frame> LocatorFrameAssertions = new LocatorAssertions<Frame>();16        public async Task LocatorShouldWaitForVisible()17        {18            await using var playwright = await Playwright.CreateAsync();19            await using var browser = await playwright.Chromium.LaunchAsync();20            var page = await browser.NewPageAsync();21            await page.GotoAsync(Server.EmptyPage);22            var locator = page.Locator("div");23            var task = locator.WaitForElementStateAsync(ElementState.Visible, new() { Timeout = 500 });24            await page.EvaluateAsync("() => window.setTimeout(() => document.querySelector('div').style.display = 'block', 200)");25            await task;26        }27        public async Task LocatorShouldWaitForHidden()28        {29            await using var playwright = await Playwright.CreateAsync();30            await using var browser = await playwright.Chromium.LaunchAsync();31            var page = await browser.NewPageAsync();32            await page.GotoAsync(Server.EmptyPage);33            var locator = page.Locator("div");34            var task = locator.WaitForElementStateAsync(ElementState.Hidden, new() { Timeout = 500 });35            await page.EvaluateAsync("() => window.setTimeout(() => document.querySelector('div').style.display = 'none', 200)");36            await task;37        }38        public async Task LocatorShouldWaitForStablePosition()39        {40            await using var playwright = await Playwright.CreateAsync();41            await using var browser = await playwright.Chromium.LaunchAsync();42            var page = await browser.NewPageAsync();43            await page.GotoAsync(Server.EmptyPage);44            var locator = page.Locator("div");45            var task = locator.WaitForElementStateAsync(ElementState.Stable, new() { Timeout = 500 });46            await page.EvaluateAsync("() => window.setTimeout(() => document.querySelector('div').style.transform = 'translateX(100px)', 200)");47            await task;48        }

LocatorAssertions

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Core;3using System;4using System.Collections.Generic;5using System.Text;6{7    {8        private readonly Locator _locator;9        public LocatorAssertions(Locator locator)10        {11            _locator = locator;12        }13        public LocatorAssertions ToHaveCount(int expected)14        {15            var actual = _locator.CountAsync().Result;16            if (actual != expected)17            {18                throw new Exception($"Locator has {actual} elements, but expected {expected}.");19            }20            return this;21        }22        public LocatorAssertions ToHaveText(string expected)23        {24            var actual = _locator.TextContentAsync().Result;25            if (actual != expected)26            {27                throw new Exception($"Locator has text {actual}, but expected {expected}.");28            }29            return this;30        }31    }32}33using Microsoft.Playwright;34using Microsoft.Playwright.Core;35using System;36using System.Collections.Generic;37using System.Text;38{39    {40        public static LocatorAssertions Should(this Locator locator)41        {42            return new LocatorAssertions(locator);43        }44    }45}46using Microsoft.Playwright;47using Microsoft.Playwright.Core;48using System;49using System.Collections.Generic;50using System.Text;51{52    {53        private readonly Locator _locator;54        public LocatorAssertions(Locator locator)55        {56            _locator = locator;57        }58        public LocatorAssertions ToHaveCount(int expected)59        {60            var actual = _locator.CountAsync().Result;61            if (actual != expected)62            {63                throw new Exception($"Locator has {actual} elements, but expected {expected}.");64            }65            return this;66        }67        public LocatorAssertions ToHaveText(string expected)68        {69            var actual = _locator.TextContentAsync().Result;70            if (actual != expected)71            {72                throw new Exception($"Locator has text {actual}, but expected {expected}.");73            }74            return this;75        }76    }77}78using Microsoft.Playwright;

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