C# 11 || [CollectionDefinition<MyCollectionFixtureType>] Generic CollectionDefinitionAttribute functionality?

[jeffward01]

I reviewed the code and I do not think this feature exists, but I just wanted to ask anyways.

Question

Is it possible to use [CollectionDefinition("myCollectionFixtureName")] with generic attributes?

Here is the current documentation for ICollectionFixture<>

Example:

Current

[CollectionDefinition("Database collection")]
public class DatabaseCollection : ICollectionFixture<DatabaseFixture>
{
    // This class has no code, and is never created. Its purpose is simply
    // to be the place to apply [CollectionDefinition] and all the
    // ICollectionFixture<> interfaces.
}



[Collection("Database collection")]
public class DatabaseTestClass1
{
    DatabaseFixture fixture;

    public DatabaseTestClass1(DatabaseFixture fixture)
    {
        this.fixture = fixture;
    }
}

Expected C# 11 functionality

[CollectionDefinition<DatabaseCollection>]
public class DatabaseCollection : ICollectionFixture<DatabaseFixture>
{
    // This class has no code, and is never created. Its purpose is simply
    // to be the place to apply [CollectionDefinition] and all the
    // ICollectionFixture<> interfaces.
}



[Collection<DatabaseCollection>]
public class DatabaseTestClass1
{
    DatabaseFixture fixture;

    public DatabaseTestClass1(DatabaseFixture fixture)
    {
        this.fixture = fixture;
    }
}

---

Summary

• Is this possible?
• Is this something that I can open an issue for and myself (alas... if i have time) or someone else can implement?

[bradwilson]

It is not possible today.

I would have to see how this is implemented to know whether we could do it without making C# 11 the minimum language version for xUnit.net. I will convert this to an issue for you.

#2650