xUnit2011 - Xunit — ContextQMD

Cause

A violation of this rule occurs when Assert.Collection or Assert.CollectionAsync is used without element inspectors to check for an empty collection.

Reason for rule

There are specialized assertions for checking collection sizes.

How to fix violations

To fix a violation of this rule, you can:

Use Assert.Empty instead.
Add element inspectors to the Assert.Collection/Assert.CollectionAsync call.

Examples

Violates

csharp

using Xunit;

public class xUnit2011
{
    [Fact]
    public void TestMethod()
    {
        var result = new[] { 1 };

        Assert.Collection(result);
    }
}

Does not violate

csharp

using Xunit;

public class xUnit2011
{
    [Fact]
    public void TestMethod()
    {
        var result = new[] { 1 };

        Assert.Empty(result);
    }
}

csharp

using Xunit;

public class xUnit2011
{
    [Fact]
    public void TestMethod()
    {
        var result = new[] { 1 };

        Assert.Collection(
            result,
            value => Assert.Equal(1, value)
        );
    }
}