sebastienros.jint/Jint.Tests/Runtime/TestClasses/AsyncTestClass.cs

namespace Jint.Tests.Runtime.TestClasses
{
    internal class AsyncTestClass
    {
        public static readonly string TestString = "Hello World";

        public string StringToAppend { get; set; } = string.Empty;

        public async Task AddToStringDelayedAsync(string appendWith)
        {
            await Task.Delay(1000).ConfigureAwait(false);

            StringToAppend += appendWith;
        }

        public async Task<string> ReturnDelayedTaskAsync()
        {
            await Task.Delay(1000).ConfigureAwait(false);

            return TestString;
        }

        public Task<string> ReturnCompletedTask()
        {
            return Task.FromResult(TestString);
        }

        public Task<string> ReturnCancelledTask(CancellationToken token)
        {
            return Task.FromCanceled<string>(token);
        }

        public async Task<string> ThrowAfterDelayAsync()
        {
            await Task.Delay(100).ConfigureAwait(false);

            throw new Exception("Task threw exception");
        }
    }
}