How do I test async methods in C#?

How do I test async methods in C#?

You can test async methods in C# using the async and await keywords along with a testing framework like NUnit or xUnit.

Can you show me an example of testing an async method?

Sure! Here's a simple example using xUnit:

[Fact]
public async Task TestAsyncMethod()
{
    var result = await MyAsyncMethod();
    Assert.Equal(expectedValue, result);
}

What if my async method throws an exception?

You can assert that an exception is thrown using Assert.ThrowsAsync<T>() in your test:

[Fact]
public async Task TestAsyncMethodThrowsException()
{
    await Assert.ThrowsAsync<ExpectedExceptionType>(async () => await MyAsyncMethod());
}

Are there any best practices for testing async methods?

Yes, some best practices include using ConfigureAwait(false) to avoid deadlocks and ensuring your tests are truly asynchronous.