Hi! Can someone point me to an example of combining a test factory with data driven tests please?

# kotest

[Victor Cardona]

Hi! Can someone point me to an example of combining a test factory with data driven tests please?

[Victor Cardona]

I'm trying to run a test factory over every item in a collection. Thanks!

[Victor Cardona]

I guess more generally is it possible to add multiple tests to a data driven test like:

withData(listOf("a", "b", "c")) {
    it("should contain single character") { ... }
    it("should be lowercase") { .. }
}

When I try to do something like that either directly or via a test factory I get a io.kotest.core.spec.InvalidDslException: Cannot add a root test after the spec has been instantiated

[sam]

I think your issue here is probably just the way you're nesting. What spec type are you using?

[Victor Cardona]

I've tried both FunSpec and DescribeSpec

[sam]

Let me try it real quick

[sam]

Yeah you cant' do it

[sam]

You could roll your own data tests by just forEaching on the list, and then you can have tests inside

[sam]

listOf("a", "b", "c").foreach {
    it("should contain single character") { ... }
    it("should be lowercase") { .. }
}

[Victor Cardona]

That's what I ended up doing, but wanted to make sure I wasn't missing something. Thanks for taking a look.

[Emil Kantis]

I started looking into if we could enable inclusion of test factories in container scopes at one point. I think it looks doable but might be missing something.. https://github.com/kotest/kotest/pull/3504/files#diff-47132c0dfa796bddf113c2e7b81d0fbbf7db278c3f9838f96ec32838057d9527