multiplatform_test

Provides a proc-macro that expands to testing on platforms relevant to Hydroflow. By default, expands to testing on the host (using the normal #[test] attribute) and wasm (using #[wasm_bindgen_test]).

For example, the test

use multiplatform_test::multiplatform_test;

#[multiplatform_test]
fn my_test() {
  // ...
}

Expands to

#[test]
#[wasm_bindgen_test::wasm_bindgen_test]
fn my_test() {
  // ...
}

Installation

[dependencies]
multiplatform_test = * # replace with version.

If you're using wasm naturally you will need to add the wasm_bindgen_test crate as a dependency.

Usage

Specifying platforms

There are many platforms which can be specified:

• test - Adds a standard #[test] attribute.
• tokio - Adds a #[tokio::test] attribute.
• async_std - Adds an #[async_std::test] attribute.
• hydroflow - Adds a #[hydroflow::test] attribute.
• wasm - Adds a #[wasm_bindgen_test::wasm_bindgen_test] attribute.
• env_logging - Registers env_logger for logging.
• env_tracing - Registers a FmtSubscriber with an EnvFilter for tracing.

You can test on a subset of platforms by passing in the platforms in parens:

use multiplatform_test::multiplatform_test;

#[multiplatform_test(test, env_logging)]  // Only test on the standard `#[test]` platform, but enables logging
fn my_test() {
  // ...
}

expands to

use multiplatform_test::multiplatform_test;

#[test]
fn my_test() {
  let _ = env_logger::builder().is_test(true).try_init();
  // ...
}