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My service class which have interface and injected service.
public class SomeService
{
    private readonly ICustomConfigManager _customConfigManager;
    private readonly IList<DefaultRoleSetting> _defaultRoleSettings;
    public FCCLicenseTrackerService(ICustomConfigManager customConfigManager)
        {            
            _customConfigManager = customConfigManager;
            _defaultRoleSettings = customConfigManager.DefaultRoleSettings;
        }
    public async Task<List<CustomModel>> GetRequests(string Id)
    {
     var defaultRoleSetting = _defaultRoleSettings.FirstOrDefault(roleSetting => roleSetting.RoleId == Guid.Parse(GroupHelper.Name));
     ValidateDefaultSettings(defaultRoleSetting);
    return customReq;
    }

My service method to which I have to make unit test case.
public async Task<List<CustomModel>> GetRequests(string Id)
        {
         var defaultRoleSetting = _defaultRoleSettings.FirstOrDefault(roleSetting => roleSetting.RoleId == Guid.Parse(GroupHelper.Name));
         ValidateDefaultSettings(defaultRoleSetting);
        return customReq;
        }
   
    private void ValidateDefaultSettings(DefaultRoleSetting defaultRoleSetting)
                {
                    if (defaultRoleSetting == null)
                    {
                        throw new ArgumentException($"{nameof(defaultRoleSetting)} is null");
                    }
                    if (string.IsNullOrWhiteSpace(defaultRoleSetting.Name))
                    {
                        throw new ArgumentException($"{nameof(defaultRoleSetting.Name)} is null or empty");
                    }
                    if (string.IsNullOrWhiteSpace(defaultRoleSetting.Email))
                    {
                        throw new ArgumentException($"{nameof(defaultRoleSetting.Email)} is null or empty");
                    }
                }

}

I am new to unit test case, as I gone through on web, didn't get any solution which is mock internal method, so due to it I am struck when 'defaultRoleSetting' is null pass. so any one can share sample code to mock for 'var defaultRoleSetting'.

What I have tried:

my test code is
public async Task GetRequests_SendingValidId_ExpectedReturnObjectType()
           {
               // Arrange
   var fakeDefaultReq = FakeDefaultRoleSetting();
           _mockCustomConfigManager.Setup(s => s.DefaultRoleSettings).Returns(fakeDefaultReq);

               var service = this.CreateService();
               string Id = "2";
               var expected = JsonConvert.DeserializeObject<IList<JObject>>(GetFakeRequests());
               //Act
               var result = await service.GetRequests(Id);

               // Assert
               Assert.Equal(JsonConvert.SerializeObject(result), JsonConvert.SerializeObject(expected));
           }

fake object method for mock dependency injection.
private List<DefaultRoleSetting> FakeDefaultRoleSetting()
        {
            string fakeData = @"[{
  'RoleId': '00000000-0000-0000-0000-000000000000',
  'Name': null,
  'Email': null,
  'UserId': '00000000-0000-0000-0000-000000000000'
}]";
            return JsonConvert.DeserializeObject<List<DefaultRoleSetting>>(fakeData);
        }

fake object method for return match.
private string GetFakeRequests()
        {
            string fakeData = @"[{
  'userId': '00000000-0000-0000-0000-000000000000',
  'StatusId': 0.0,
  'createdOn': '0001-01-01T00:00:00',
  'createdBy': '00000000-0000-0000-0000-000000000000',
  'modifiedOn': null,
  'modifiedBy': null,
  'buildoutCompletedDate': null,
  'buildoutDeadlineReason': null
}]";
            return fakeData;
        }
Posted
Updated 20-Apr-22 18:20pm

1 solution

Actually I was sending dummy data in 'FakeDefaultRoleSetting' json method, when I convert it to real data, the issue gone. Thanks all for support.
   

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