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Add env vars to filter wasm-bindgen-test-runner tests

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This is intended to handle #1458 and #822. These issues stem from
behavior where:

    wasm-pack test --node

will actually run both Node.js and browser tests! Two new env vars are
read here, `WASM_BINDGEN_TEST_ONLY_{NODE,WEB}`, which control which
tests are executed by `wasm-bindgen-test-runner`. The intention is that
these will be set by `wasm-pack` to configure which tests are run, and
if test suites are skipped due to the env vars we'll print an
informational message indicating how they can be run.

Closes #822
Closes #1458
This commit is contained in:
Alex Crichton 2019-04-16 08:02:27 -07:00
parent 18746ecf4a
commit 79f370deef
1 changed files with 24 additions and 0 deletions
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24
crates/cli/src/bin/wasm-bindgen-test-runner/main.rs
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@ -103,6 +103,30 @@ fn rmain() -> Result<(), Error> {
let headless = env::var("NO_HEADLESS").is_err();
let debug = env::var("WASM_BINDGEN_NO_DEBUG").is_err();
// Gracefully handle requests to execute only node or only web tests.
if env::var_os("WASM_BINDGEN_TEST_ONLY_NODE").is_some() {
if !node {
println!("this test suite is only configured to run in a browser, \
but we're only testing node.js tests so skipping");
return Ok(());
}
}
if env::var_os("WASM_BINDGEN_TEST_ONLY_WEB").is_some() {
if node {
println!("\
This test suite is only configured to run in node.js, but we're only running
browser tests so skipping. If you'd like to run the tests in a browser
include this in your crate when testing:
wasm_bindgen_test::wasm_bindgen_test_configure!(run_in_browser);
You'll likely want to put that in a `#[cfg(test)]` module or at the top of an
integration test.\
");
return Ok(());
}
}
// Make the generated bindings available for the tests to execute against.
shell.status("Executing bindgen...");
let mut b = Bindgen::new();