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// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
namespace ProductivityApiUnitTests
{
using System.Data.Common;
using System.Data.Entity;
using System.Data.Entity.Core;
using System.Data.Entity.Infrastructure;
using System.Data.Entity.Internal;
using System.Data.SqlClient;
using System.Linq;
using Moq;
using Xunit;
public class EdmMetadataRepositoryTests : TestBase
{
[Fact]
public void QueryForModelHash_returns_the_model_hash_if_it_exists()
{
var repository = new EdmMetadataRepository("Database=Foo", SqlClientFactory.Instance);
var mockContext = CreateMockContext("Hash");
Assert.Equal("Hash", repository.QueryForModelHash(c => mockContext.Object));
}
[Fact]
public void QueryForModelHash_returns_the_last_model_hash_if_more_than_one_exists()
{
var repository = new EdmMetadataRepository("Database=Foo", SqlClientFactory.Instance);
var mockContext = CreateMockContext("Hash1", "Hash2", "Hash3");
Assert.Equal("Hash3", repository.QueryForModelHash(c => mockContext.Object));
}
[Fact]
public void QueryForModelHash_returns_null_if_the_EdmMetadata_table_is_missing()
{
var repository = new EdmMetadataRepository("Database=Foo", SqlClientFactory.Instance);
var mockContext = CreateMockContext("Hash");
mockContext.Setup(m => m.Metadata).Throws(new EntityCommandExecutionException());
Assert.Null(repository.QueryForModelHash(c => mockContext.Object));
}
[Fact]
public void QueryForModelHash_returns_null_if_the_EdmMetadata_has_no_rows()
{
var repository = new EdmMetadataRepository("Database=Foo", SqlClientFactory.Instance);
var mockContext = CreateMockContext();
Assert.Null(repository.QueryForModelHash(c => mockContext.Object));
}
[Fact]
public void QueryForModelHash_returns_null_if_the_EdmMetadata_has_row_with_null_model_hash()
{
var repository = new EdmMetadataRepository("Database=Foo", SqlClientFactory.Instance);
var mockContext = CreateMockContext((string)null);
Assert.Null(repository.QueryForModelHash(c => mockContext.Object));
}
private Mock<EdmMetadataContext> CreateMockContext(params string[] hashValues)
{
var mockContext = new Mock<EdmMetadataContext>(new Mock<DbConnection>().Object, true)
{
CallBase = true
};
mockContext.Setup(m => m.Metadata).Returns(CreateMockEdmMetadataSet(hashValues).Object);
return mockContext;
}
#pragma warning disable 612,618
private Mock<IDbSet<EdmMetadata>> CreateMockEdmMetadataSet(params string[] hashValues)
{
var edmMetadata = hashValues.Select(
(h, i) => new EdmMetadata
{
Id = i,
ModelHash = h
}).AsQueryable();
var mockSet = new Mock<IDbSet<EdmMetadata>>();
mockSet.Setup(m => m.ElementType).Returns(edmMetadata.ElementType);
mockSet.Setup(m => m.Expression).Returns(edmMetadata.Expression);
mockSet.Setup(m => m.Provider).Returns(edmMetadata.Provider);
mockSet.Setup(m => m.GetEnumerator()).Returns(edmMetadata.GetEnumerator());
return mockSet;
}
#pragma warning restore 612,618
}
}
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