我正在尝试在我的xunit存储库测试中使用InMemory EF7数据库。
但我的问题是,当我尝试Dispose创建的上下文时,内存中的数据库会持续存在。这意味着一个测试会影响其他测试。
我已经阅读了这篇文章Unit Testing Entity Framework 7 with the In Memory Data Store,并尝试在我的TestClass的构造函数中设置上下文。但这种方法不起作用。当我单独运行测试时,一切都正常,但我的第一个测试方法向数据库添加了一些东西,第二个测试方法从上一个测试方法的脏数据库开始。我试图将IDispose
添加到测试类中,但DatabaseContext方法和DB仍然保留在内存中。我做错了什么,我漏掉了什么?
我的代码如下:
using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Xunit;
namespace Fabric.Tests.Repositories
{
/// <summary>
/// Test for TaskRepository
/// </summary>
public class TaskRepositoryTests:IDisposable
{
private readonly DatabaseContext contextMemory;
/// <summary>
/// Constructor
/// </summary>
public TaskRepositoryTests()
{
var optionsBuilder = new DbContextOptionsBuilder<DatabaseContext>();
optionsBuilder.UseInMemoryDatabase();
contextMemory = new DatabaseContext(optionsBuilder.Options);
}
/// <summary>
/// Dispose DB
/// </summary>
public void Dispose()
{
//this has no effect
if (contextMemory != null)
{
contextMemory.Dispose();
}
}
/// <summary>
/// Positive Test for ListByAssigneeId method
/// </summary>
/// <returns></returns>
[Fact]
public async Task TasksRepositoryListByAssigneeId()
{
// Arrange
var assigneeId = Guid.NewGuid();
var taskList = new List<TaskItem>();
//AssigneeId != assigneeId
taskList.Add(new TaskItem()
{
AssigneeId = Guid.NewGuid(),
CreatorId = Guid.NewGuid(),
Description = "Descr 2",
Done = false,
Id = Guid.NewGuid(),
Location = "Some location 2",
Title = "Some title 2"
});
taskList.Add(new TaskItem()
{
AssigneeId = assigneeId,
CreatorId = Guid.NewGuid(),
Description = "Descr",
Done = false,
Id = Guid.NewGuid(),
Location = "Some location",
Title = "Some title"
});
taskList.Add(new TaskItem()
{
AssigneeId = assigneeId,
CreatorId = Guid.NewGuid(),
Description = "Descr 2",
Done = false,
Id = Guid.NewGuid(),
Location = "Some location 2",
Title = "Some title 2"
});
//AssigneeId != assigneeId
taskList.Add(new TaskItem()
{
AssigneeId = Guid.NewGuid(),
CreatorId = Guid.NewGuid(),
Description = "Descr 2",
Done = false,
Id = Guid.NewGuid(),
Location = "Some location 2",
Title = "Some title 2"
});
//set up inmemory DB
contextMemory.TaskItems.AddRange(taskList);
//save context
contextMemory.SaveChanges();
// Act
var repository = new TaskRepository(contextMemory);
var result = await repository.ListByAssigneeIdAsync(assigneeId);
// Assert
Assert.NotNull(result.Count());
foreach (var td in result)
{
Assert.Equal(assigneeId, td.AssigneeId);
}
}
/// <summary>
/// test for Add method
/// (Skip = "not able to clear DB context yet")
/// </summary>
/// <returns></returns>
[Fact]
public async Task TasksRepositoryAdd()
{
var item = new TaskData()
{
AssigneeId = Guid.NewGuid(),
CreatorId = Guid.NewGuid(),
Description = "Descr",
Done = false,
Location = "Location",
Title = "Title"
};
// Act
var repository = new TaskRepository(contextMemory);
var result = await repository.Add(item);
// Assert
Assert.Equal(1, contextMemory.TaskItems.Count());
Assert.NotNull(result.Id);
var dbRes = contextMemory.TaskItems.Where(s => s.Id == result.Id).SingleOrDefault();
Assert.NotNull(dbRes);
Assert.Equal(result.Id, dbRes.Id);
}
}
}
我正在使用:
"Microsoft.EntityFrameworkCore.InMemory": "1.0.0"
"Microsoft.EntityFrameworkCore": "1.0.0"
"xunit": "2.2.0-beta2-build3300"