public async Task TestCreateRole()
{
var options = new DbContextOptionsBuilder <ApplicationDbContext>()
.UseInMemoryDatabase(databaseName: Guid.NewGuid().ToString()).Options;
var roleStore = new Mock <IRoleStore <ApplicationRole> >();
var roleManagerMock =
new Mock <RoleManager <ApplicationRole> >(roleStore.Object, null, null, null, null);
roleManagerMock.Setup(x => x.CreateAsync(It.IsAny <ApplicationRole>()))
.ReturnsAsync(IdentityResult.Success);
using (var db = new ApplicationDbContext(options))
{
IHomeService homeService = new HomeService(db, roleManagerMock.Object);
var result = await homeService.CreateRole("Administrator");
Assert.True(result.Succeeded);
}
}