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Support asynchronous tests (#600)

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* Tweak the implementation of heap closures

This commit updates the implementation of the `Closure` type to internally store
an `Rc` and be suitable for dropping a `Closure` during the execution of the
closure. This is currently needed for promises but may be generally useful as
well!

* Support asynchronous tests

This commit adds support for executing tests asynchronously. This is modeled
by tests returning a `Future` instead of simply executing inline, and is
signified with `#[wasm_bindgen_test(async)]`.

Support for this is added through a new `wasm-bindgen-futures` crate which is a
binding between the `futures` crate and JS `Promise` objects.

Lots more details can be found in the details of the commit, but one of the end
results is that the `web-sys` tests are now entirely contained in the same test
suite and don't need `npm install` to be run to execute them!

* Review tweaks

* Add some bindings for `Function.call` to `js_sys`

Name them `call0`, `call1`, `call2`, ... for the number of arguments being
passed.

* Use oneshots channels with `JsFuture`

It did indeed clean up the implementation!
This commit is contained in:
Alex Crichton
2018-08-01 15:52:24 -05:00
committed by GitHub
parent 4181afea45
commit eee71de0ce
34 changed files with 1167 additions and 333 deletions
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9
crates/cli/src/bin/wasm-bindgen-test-runner/index-headless.html
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@ -20,17 +20,18 @@
}
};
console.log = function() {
if (window.global_cx)
window.global_cx.console_log(orig_console_log, arguments);
if (window.console_log_redirect)
window.console_log_redirect(orig_console_log, arguments);
else
orig_console_log.apply(this, arguments);
};
console.error = function() {
if (window.global_cx)
window.global_cx.console_error(orig_console_error, arguments);
if (window.console_error_redirect)
window.console_error_redirect(orig_console_error, arguments);
else
orig_console_error.apply(this, arguments);
};
window.__wbg_test_invoke = f => f();
</script>
<script src='run.js' type=module></script>
</body>