How to run actual unit tests on headless browser?

[pepsighan]

Currently, as I have tried, we can only run integration tests with the help of wasm-bindgen-test-runner.
Is there a way to run such tests from within the module itself?

[limira]

How about this?

#[cfg(test)]
extern crate wasm_bindgen_test;
#[cfg(test)]
wasm_bindgen_test::wasm_bindgen_test_configure!(run_in_browser);

In a mod:

#[cfg(test)]
use wasm_bindgen_test::*;
//....
#[cfg(test)]
#[wasm_bindgen_test]
fn test_on_web() {
    let div = document.create_element("div");
    assert_eq!(div.tag_name(), "DIV");
    assert_eq!(1 + 1, 2);
}

I think I successfully run test with this setup! The output is:

Running headless tests in Chrome with `...`
running 1 test                                    

test simi::app::test_on_web ... ok

[alexcrichton]

Indeed @limira's instructions should do the trick! @csharad does that answer what you were thinking?

[pepsighan]

Thanks @limira. I was able to run the tests in the lib.rs itself, YAY!. But not in the nested modules.
I have it in the repo. How were you able to run it inside the mod? What am I doing wrong?

[pepsighan]

Wait a minute! I know the problem now. It seems the tests are only runnable if the module itself is visible to lib.rs. Weird as the normal tests are runnable without their module being pub.

[limira]

So, I was in luck because I put it in a pub mod. I think it must be pub because tests are actually run on the JS side.

[alexcrichton]

Ah yes unfortunately pub mod is required for submodules to run tests. That's due to #201

[pepsighan]

I'll close it then as my issue is ironed out. Thank you both.