问单元测试Marten

EN

public async Task<Client> FindClientByIdAsync(string clientId)
{
    var client = await _documentSession.Query<dbe.Client>().FirstOrDefaultAsync(c => c.ClientId == clientId);
    return _mapper.Map<Client>(client); // AutoMapper conversion call
}

[Fact]
public async Task FindClientByIdReturnsClient()
{
    var clients = new []
    {
        new dbe.Client
        {
            ClientId = "123"
        }
    }.AsQueryable();

    var queryable = new MartenQueryable<dbe.Client>(clients.Provider);
    // _documentSession is a Moq Mock
    _documentSession.Setup(x => x.Query<dbe.Client>()).Returns(queryable);

    var store = new ClientStore(_documentSession.Object, _mapper);

    var result = await store.FindClientByIdAsync("123");

    Assert.NotNull(result);
    Assert.Equal("123", result.ClientId);
}

System.InvalidCastException : Unable to cast object of type 'System.Linq.EnumerableQuery`1[StaticSphere.Persona.Data.Entities.Client]' to type 'Marten.Linq.IMartenQueryable'.