Using Assert in NAudio

Question

I am using this section of code in my C# program which I found on this stackoverflow thread.

using (WaveFileReader reader = new WaveFileReader("myfile.wav"))
{
    Assert.AreEqual(16, reader.WaveFormat.BitsPerSample, "Only works with 16 bit audio");
    byte[] buffer = new byte[reader.Length];
    int read = reader.Read(buffer, 0, buffer.Length);
    short[] sampleBuffer = new short[read / 2];
    Buffer.BlockCopy(buffer, 0, sampleBuffer, 0, read);
}

The code uses NAudio, so I have referenced the libary and added using NAudio.Wave; but I am receiving the error: The name 'Assert' does not exist in the current context.

How can i fix this?

This may have been better as a comment but I do not have enough reputation to do so

score 1 · Accepted Answer · answered Aug 09 '18 at 11:37

1

Assert is a function from XUnit.

Add that reference. And add the using directive.

using Xunit;

answered Aug 09 '18 at 11:37

Henrik Wilshusen

289
1
11

Thanks, this fixes the above error, but now it says 'Assert' does not contain a definition for 'AreEqual'. Any idea why it would do that? – Logan Miller Aug 09 '18 at 12:52
1

Just delete the line it is not significant for the functionality – Henrik Wilshusen Aug 09 '18 at 13:05
Xunit uses Equal to compare expected and actual value. AreEqual is used by MSTest. – Bouke Aug 10 '18 at 12:31

score 1 · Answer 2 · answered Aug 21 '18 at 10:32

The Assert.AreEqual in that code is from NUnit, but taking a dependency on a unit testing framework is completely unnecessary in production code. If you want the check, just throw some kind of exception if it doesn't match. For example:

if (reader.WaveFormat.BitsPerSample != 16)
    throw new NotSupportedException("Only works with 16 bit audio");

Using Assert in NAudio

2 Answers2