I am trying use InMemory EF7 database for my xunit repository test.
But my problem is that when i try to Dispose the created context the in memory db persist. It means that one test involve other.
I have read this article Unit Testing Entity Framework 7 with the In Memory Data Store and I have tried to setup the context in the constructor of my TestClass. But this approach doesn't work. When I run tests separately everything is OK, but my first test method add something into DB and second test method start with dirty DB from previous test method. I try add IDispose
into test class but method DatabaseContext and DB persist in memory. What I am doing wrong am i missing something?
My code looks like:
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);
}
}
}
I am using:
"Microsoft.EntityFrameworkCore.InMemory": "1.0.0"
"Microsoft.EntityFrameworkCore": "1.0.0"
"xunit": "2.2.0-beta2-build3300"
See Question&Answers more detail:
os 与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…