Files
simple-rust-tests/__wasm/wit-bindgen-sample/wit-bindgen/crates/gen-js/tests/runtime.rs

100 lines
3.2 KiB
Rust

use std::env;
use std::fs;
use std::path::{Path, PathBuf};
use std::process::Command;
use wit_bindgen_gen_core::Generator;
test_helpers::runtime_tests!("ts");
fn execute(name: &str, wasm: &Path, ts: &Path, imports: &Path, exports: &Path) {
let mut dir = PathBuf::from(env!("OUT_DIR"));
dir.push(name);
drop(fs::remove_dir_all(&dir));
fs::create_dir_all(&dir).unwrap();
println!("OUT_DIR = {:?}", dir);
println!("Generating bindings...");
// We call `generate_all` with exports from the imports.wit file, and
// imports from the exports.wit wit file. It's reversed because we're
// implementing the host side of these APIs.
let imports = wit_bindgen_gen_core::wit_parser::Interface::parse_file(imports).unwrap();
let exports = wit_bindgen_gen_core::wit_parser::Interface::parse_file(exports).unwrap();
let mut files = Default::default();
wit_bindgen_gen_js::Opts::default()
.build()
.generate_all(&[exports], &[imports], &mut files);
for (file, contents) in files.iter() {
fs::write(dir.join(file), contents).unwrap();
}
let (cmd, args) = if cfg!(windows) {
("cmd.exe", &["/c", "npx.cmd"] as &[&str])
} else {
("npx", &[] as &[&str])
};
fs::copy(ts, dir.join("host.ts")).unwrap();
fs::copy("tests/helpers.d.ts", dir.join("helpers.d.ts")).unwrap();
fs::copy("tests/helpers.js", dir.join("helpers.js")).unwrap();
let config = dir.join("tsconfig.json");
fs::write(
&config,
format!(
r#"
{{
"files": ["host.ts"],
"compilerOptions": {{
"module": "esnext",
"target": "es2020",
"strict": true,
"strictNullChecks": true,
"baseUrl": {0:?},
"outDir": {0:?}
}}
}}
"#,
dir,
),
)
.unwrap();
run(Command::new(cmd)
.args(args)
.arg("tsc")
.arg("--project")
.arg(&config));
// Currently there's mysterious uvwasi errors creating a `WASI` on Windows.
// Unsure what's happening so let's ignore these tests for now since there's
// not much Windows-specific here anyway.
if cfg!(windows) {
return;
}
fs::write(dir.join("package.json"), "{\"type\":\"module\"}").unwrap();
let mut path = Vec::new();
path.push(env::current_dir().unwrap());
path.push(dir.clone());
println!("{:?}", std::env::join_paths(&path));
run(Command::new("node")
.arg("--experimental-wasi-unstable-preview1")
.arg(dir.join("host.js"))
.env("NODE_PATH", std::env::join_paths(&path).unwrap())
.arg(wasm));
}
fn run(cmd: &mut Command) {
println!("running {:?}", cmd);
let output = cmd.output().expect("failed to executed");
println!("status: {}", output.status);
println!(
"stdout:\n {}",
String::from_utf8_lossy(&output.stdout).replace("\n", "\n ")
);
println!(
"stderr:\n {}",
String::from_utf8_lossy(&output.stderr).replace("\n", "\n ")
);
assert!(output.status.success());
}