如何对OData客户端进行单元测试？

C'tor DataServiceQuery是私人的,因此我不能用它来嘲笑它Moq.

我使用MsFakes作为免费的代码编织工具来解决这个问题:

[TestMethod]
public void LevelsVMConstructorTest()
{
    using (ShimsContext.Create())
    {
        List levels = new List();
        levels.Add(new Level() { Id = 1, LevelId = 1, Name = "abc", IsRoot = true });
        var levelsIQ = levels.AsQueryable();

        var fakeDataServiceQuery = new System.Data.Services.Client.Fakes.ShimDataServiceQuery();

        fakeDataServiceQuery.ProviderGet = () => levelsIQ.Provider;
        fakeDataServiceQuery.ExpressionGet = () => levelsIQ.Expression;
        fakeDataServiceQuery.ElementTypeGet = () => levelsIQ.ElementType;
        fakeDataServiceQuery.GetEnumerator = levelsIQ.GetEnumerator;

        var defaultContainerMock = new Mock();
        defaultContainerMock.Setup(m => m.Levels).Returns(fakeDataServiceQuery);

        LevelViewer lv = new LevelViewer(odataContainerMock.Object);
        Assert.IsTrue(lv.GetRootLevels().Any());

   }
}