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Add MockQueryable.Moq to moq DbContext and DbSets

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This commit is contained in:
ngfrolov 2022-11-23 17:28:29 +05:00
parent fee2b19b46
commit 75a3ea410d
2 changed files with 9 additions and 80 deletions
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1
AsbCloudWebApi.Tests/AsbCloudWebApi.Tests.csproj
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@ -13,6 +13,7 @@
<PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="6.0.8" />
<PackageReference Include="Microsoft.EntityFrameworkCore.Relational" Version="6.0.8" />
<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.1" />
<PackageReference Include="MockQueryable.Moq" Version="6.0.1" />
<PackageReference Include="Moq" Version="4.18.2" />
<PackageReference Include="xunit" Version="2.4.2" />
<PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">

88
AsbCloudWebApi.Tests/TestHelpter.cs
View File

@ -1,14 +1,12 @@
using AsbCloudDb.Model;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Caching.Memory;
using MockQueryable.Moq;
using Moq;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Threading;
using System.Threading.Tasks;
namespace AsbCloudWebApi.Tests
{
@ -29,9 +27,13 @@ namespace AsbCloudWebApi.Tests
public static Mock<IAsbCloudDbContext> AddDbSetMock<T>(this Mock<IAsbCloudDbContext> contextMock, IEnumerable<T> dbSetData)
where T : class
{
var dbSetMock = MakeDbSetMock(dbSetData);
var mockDbSet = dbSetData
.ToList()
.AsQueryable()
.BuildMockDbSet();
contextMock.Setup(o => o.Set<T>())
.Returns(() => dbSetMock.Object);
.Returns(mockDbSet.Object);
var dbSetProperty = typeof(IAsbCloudDbContext)
.GetProperties()
@ -43,84 +45,10 @@ namespace AsbCloudWebApi.Tests
var objParameterExpr = Expression.Parameter(typeof(IAsbCloudDbContext), "instance");
var propertyExpr = Expression.Property(objParameterExpr, dbSetProperty);
var expression = Expression.Lambda<Func<IAsbCloudDbContext, DbSet<T>>>(propertyExpr, objParameterExpr);
contextMock.SetupGet(expression).Returns(dbSetMock.Object);
contextMock.SetupGet(expression).Returns(mockDbSet.Object);
}
return contextMock;
}
public static Mock<DbSet<T>> MakeDbSetMock<T>()
where T : class
=> MakeDbSetMock(new List<T>());
class DummyAsyncQueriable<T> : IQueryable<T>, IAsyncEnumerable<T>
{
private readonly IQueryable<T> queriable;
public Type ElementType => queriable.ElementType;
public Expression Expression => queriable.Expression;
public IQueryProvider Provider => queriable.Provider;
class QueriableAsyncEminaretor<T2> : IAsyncEnumerator<T2>
{
private readonly IEnumerator<T2> syncEnumerator;
public QueriableAsyncEminaretor(IEnumerator<T2> syncEnumerator)
{
this.syncEnumerator = syncEnumerator;
}
public T2 Current => syncEnumerator.Current;
public ValueTask DisposeAsync()
{
syncEnumerator.Dispose();
return ValueTask.CompletedTask;
}
public ValueTask<bool> MoveNextAsync()
{
var result = syncEnumerator.MoveNext();
return ValueTask.FromResult(result);
}
}
public DummyAsyncQueriable(IEnumerable<T> dbSetData)
{
queriable = dbSetData.ToList().AsQueryable();
}
public IAsyncEnumerator<T> GetAsyncEnumerator(CancellationToken cancellationToken = default)
{
var enumerator = this.AsEnumerable().GetEnumerator();
return new QueriableAsyncEminaretor<T>(enumerator);
}
public IEnumerator<T> GetEnumerator()
=> queriable.GetEnumerator();
IEnumerator IEnumerable.GetEnumerator()
=> queriable.GetEnumerator();
}
public static Mock<DbSet<T>> MakeDbSetMock<T>(IEnumerable<T> dbSetData)
where T : class
{
var dbSetDataQueriable = new DummyAsyncQueriable<T>(dbSetData);
Mock<DbSet<T>> dbSetMock = new();
dbSetMock.As<IQueryable<T>>().Setup(o => o.Provider).Returns(() => dbSetDataQueriable.Provider);
dbSetMock.As<IQueryable<T>>().Setup(o => o.Expression).Returns(() => dbSetDataQueriable.Expression);
dbSetMock.As<IQueryable<T>>().Setup(o => o.ElementType).Returns(() => dbSetDataQueriable.ElementType);
dbSetMock.As<IQueryable<T>>().Setup(o => o.GetEnumerator()).Returns(() => dbSetDataQueriable.GetEnumerator());
dbSetMock.As<IAsyncEnumerable<T>>()
.Setup(o => o.GetAsyncEnumerator(It.IsAny<CancellationToken>()))
.Returns(() => dbSetDataQueriable.GetAsyncEnumerator());
return dbSetMock;
}
}
}