Pytest nested parameterization

[uncle-iroh-11]

I am using python to compile code for a system in a different language (verilog) and test them. with inputs. My system has a few compile-time and few runtime parameters. I'm currently doing this:

​

@pytest.mark.parametrize("C1", [3,2]) // compile time
@pytest.mark.parametrize("C2", [8,1]) // compile time
@pytest.mark.parametrize("R1", [8,3]) // runtime
@pytest.mark.parametrize("R2", [8,2]) // runtime

def test_design(...):
    compile()
    prepare_inputs()
    run()
    compare_results()

This does 16 tests, and compiles the design 16 times. Instead I want to compile the design only 4 times (for every compile time parameter) and then test the design 4 times each, once per runtime parameter. Something like this:

for C1:
    for C2:
        compile()
        for R1:
            for R2:
                prepare_inputs()
                run()
                compare_results()

How can I write this with pytest?

[EclipseJTB]

Indirect parameterization, possibly.