dotnet/test/unit/webdriver/AccessibilitySnapshotUnitTests.cs

// <copyright file="AccessibilitySnapshotUnitTests.cs" company="Selenium Committers">
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//
//   http://www.apache.org/licenses/LICENSE-2.0
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using Moq;

namespace OpenQA.Selenium.Tests;

/// <summary>
/// A session without BiDi cannot take an accessibility snapshot, and says so.
/// </summary>
public class AccessibilitySnapshotUnitTests
{
    [Test]
    public void GetAccessibilitySnapshotAsync_DriverWithoutBiDi_ThrowsUnsupportedOperationException()
    {
        using WebDriver driver = StartDriverWithoutBiDi();

        Assert.That(async () => await driver.GetAccessibilitySnapshotAsync(), Throws.InstanceOf<UnsupportedOperationException>().With.Message.Contains("BiDi"));
    }

    [Test]
    public void GetAccessibilitySnapshotAsync_ElementWithoutBiDi_ThrowsUnsupportedOperationException()
    {
        using WebDriver driver = StartDriverWithoutBiDi();
        var element = new WebElement(driver, "element-1");

        Assert.That(async () => await element.GetAccessibilitySnapshotAsync(), Throws.InstanceOf<UnsupportedOperationException>().With.Message.Contains("BiDi"));
    }

    /// <summary>Starts a driver over an executor that answers the new session without a WebSocket URL and every other command with success.</summary>
    private static WebDriver StartDriverWithoutBiDi()
    {
        var capabilities = new Dictionary<string, object> { ["browserName"] = "chrome" };

        var executor = new Mock<ICommandExecutor>();
        executor.Setup(e => e.ExecuteAsync(It.IsAny<Command>()))
            .Returns((Command command) => Task.FromResult(new Response("session-1", command.Name == DriverCommand.NewSession ? capabilities : null, WebDriverResult.Success)));

        return new Mock<WebDriver>(executor.Object, new RemoteSessionSettings()) { CallBase = true }.Object;
    }
}