MockProvider.cs

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using System.Collections.Generic;
using System.Linq;
using System.Security.Claims;
using Microsoft.EntityFrameworkCore;
using Moq;

namespace ScientificReport.Test
{
    public class MockProvider
    {
        public static Mock<DbSet<T>> GetMockSet<T>(IEnumerable<T> testData) where T : class
        {
            var list = testData.AsQueryable();
            var mockSet = new Mock<DbSet<T>>();
            mockSet.As<IQueryable<T>>().Setup(m => m.Provider).Returns(list.Provider);
            mockSet.As<IQueryable<T>>().Setup(m => m.Expression).Returns(list.Expression);
            mockSet.As<IQueryable<T>>().Setup(m => m.ElementType).Returns(list.ElementType);
            mockSet.As<IQueryable<T>>().Setup(m => m.GetEnumerator()).Returns(list.GetEnumerator());
            return mockSet;
        }
        
        public static Mock<ClaimsPrincipal> GetMockClaimsPrincipal(string role, string name)
        {
            var cp = new Mock<ClaimsPrincipal>();
            cp.Setup(m => m.IsInRole(role)).Returns(true);
            cp.Setup(m => m.Identity.Name).Returns(name);
            return cp;
        }
    }
}