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  1. PO
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    <p>Difficult.</p> <p>I think you have two options.</p> <p>If you can change the return type of <code>Headers</code> from <code>IEntityRepository&lt;T&gt;</code> to <code>IQueryable&lt;T&gt;</code>, you can return a queryable <code>List&lt;T&gt;</code> for <code>Headers</code>:</p> <pre><code>IList&lt;T&gt; list = new List&lt;Header&gt; { /* Some Header object */ } IQueryable&lt;T&gt; queryableList = list.AsQueryable(); _repository.Stub(x =&gt; x.Headers).Return(queryableList); </code></pre> <p>If you can't change the return type, you need to create a test fake (a new class) that derives from <code>IEntityRepository&lt;T&gt;</code>, and wraps a queryable <code>List&lt;T&gt;</code>. You will need to implement all the methods that <code>IEntityRepository&lt;T&gt;</code> and its interfaces define, but just call the relevant function on the queryable <code>List&lt;T&gt;</code>. Then you add a relevant <code>Header</code> to the underlying queryable <code>List&lt;T&gt;</code> as above and return a new instance of this object to stub <code>Headers</code>.</p> <p><code>IQueryable&lt;Header&gt;</code> Wrapper would look something like this:</p> <pre><code>public class HeadersWrapper : IQueryable&lt;Header&gt; { private readonly IQueryable&lt;Header&gt; _queryableSource; public HeadersWrapper(IEnumerable&lt;Header&gt; source) { _queryableSource = source.AsQueryable(); } public IEnumerator&lt;Header&gt; GetEnumerator() { return _queryableSource.GetEnumerator(); } IEnumerator IEnumerable.GetEnumerator() { return GetEnumerator(); } public Expression Expression { get { return _queryableSource.Expression; } } public Type ElementType { get { return _queryableSource.ElementType; } } public IQueryProvider Provider { get { return _queryableSource.Provider; } } } </code></pre> <p>And you'd use it something like this:</p> <pre><code>var headers = new List&lt;Header&gt; { new Header { Id = "foo" } }; var wrapper = new HeadersWrapper(headers); repo.Stub(x =&gt; x.Headers).Return(wrapper); </code></pre> <p>And of course, you can exchange <code>IQueryable&lt;Header&gt;</code> for <code>IEntityRepository&lt;Header&gt;</code> if you want to.</p>
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    1. POhow to stub out an IEntityRepository
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    1. USChris Mantle
    1. USChris Mantle
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    1. POhow to stub out an IEntityRepository
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    1. COI'll investigate this and let you know. Thanks
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      1. USJames Radford
    2. COstruggling to write a fake class tbh that wraps a queryable :(
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    3. COUpdated with wrapper class
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      1. USChris Mantle
 

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