How to add parameters to section names in Catch2-CodePudding

I'm using Catch2 to create a set of tests for some C legacy code and I have a function that I would like to test for a good amount of values. I have found that I can use the GENERATE keyword to create a data generator variable that will repeat the following scenario for each of the generated values, but my only issue is that when I launch the tests, I cannot distinguish which execution is for each value.

So for a minimal example like:

TEST_CASE("Evaluate output of is_odd() function") {
    auto i = GENERATE(1, 3, 5);
    SECTION("Check if i is odd"){ // <-- I want to fit the actual value of i in here.
        REQUIRE(is_odd(i));
    }
}

So if I launch the tests and I specify -s to see passed tests as well, I would like to see something like:

-------------------------------------------
Evaluate output of is_odd() function
  Check if 1 is odd
-------------------------------------------
...
-------------------------------------------
Evaluate output of is_odd() function
  Check if 3 is odd
-------------------------------------------
...
-------------------------------------------
Evaluate output of is_odd() function
  Check if 5 is odd
-------------------------------------------

I have tried creating a string containg i and concatenating it to the SECTION's name, but it didn't work, is there some way to achieve this?

CodePudding user response：

This is possible, but not very obvious from the documentation. What you're looking for is a dynamic section:

TEST_CASE("Evaluate output of is_odd() function") {
    auto i = GENERATE(1, 3, 5);
    DYNAMIC_SECTION("Check if " << i << " is odd"){ 
        REQUIRE(is_odd(i));
    }
}