ApprovalTests with TestCase (Nunit) use the same approval file

Question

I have a problem that using ApprovalTests.Net and NUnit all the tests that are run use the same approval file which name originates from Test method name.

Is it possible to specify somehow for each test case separate approval file?

[Test]
[TestCase("test",TestName="Test1")]
[TestCase("test2",TestName="Test2")]
Testing_Method(string param)
{
   //somestuff
   ObjectApprover.VerifyJson(someObject); // fails for second case 
                                          // because it uses the same 
                                          // approval file as the first case,
                                          // which is not the same
}

See https://github.com/approvals/ApprovalTests.Net/issues/93 — Charlie, Feb 28 '18 at 20:30
saw it but though someone might know a workaround for that or a good alternative — phoenix, Feb 28 '18 at 20:40

score 5 · Accepted Answer · edited Nov 05 '18 at 03:08

You need to use

ApprovalResults.ForScenario("extra info")

Like such:

[Test]
[TestCase("test",TestName="Test1")]
[TestCase("test2",TestName="Test2")]
Testing_Method(string param)
{
   //somestuff
   using (ApprovalTests.Namers.ApprovalResults.ForScenario(param))
   {
       ObjectApprover.VerifyJson(someObject); 
   }
}

This will result in 2 approval files:

TestClassName.Testing_Method.ForScenario.Test1.approved.json
TestClassName.Testing_Method.ForScenario.Test2.approved.json

score 0 · Answer 2 · answered Mar 02 '18 at 12:41

0

Instead of [TestCase] attribute, you could use [TestCaseSource] attribute.

https://ignas.me/tech/nunit-testcasesource-example/ - TestCaseSource example with explanation.

answered Mar 02 '18 at 12:41

VitaliiP

198
7

1

I dont think it solves the problem with ObjectApprover – phoenix Mar 02 '18 at 14:17

ApprovalTests with TestCase (Nunit) use the same approval file

2 Answers2