Add bun-test to run `bun wiptest`

6 files changed, 112 insertions, 0 deletions

diff --git a/packages/bun-test/.gitignore b/packages/bun-test/.gitignore
new file mode 100644
index 000000000..e8034cc5f
--- /dev/null
+++ b/packages/bun-test/.gitignore
@@ -0,0 +1,3 @@
+.DS_Store
+.env
+node_modules
diff --git a/packages/bun-test/README.md b/packages/bun-test/README.md
new file mode 100644
index 000000000..5d5471101
--- /dev/null
+++ b/packages/bun-test/README.md
@@ -0,0 +1,3 @@
+# bun-test
+
+Scripts to run Bun's tests using `bun wiptest`.
diff --git a/packages/bun-test/bun.lockb b/packages/bun-test/bun.lockb
new file mode 100755
index 000000000..ac8b84c5f
--- /dev/null
+++ b/packages/bun-test/bun.lockb
diff --git a/packages/bun-test/package.json b/packages/bun-test/package.json
new file mode 100644
index 000000000..531b93ec8
--- /dev/null
+++ b/packages/bun-test/package.json
@@ -0,0 +1,11 @@
+{
+  "private": true,
+  "dependencies": {},
+  "devDependencies": {
+    "bun-types": "canary",
+    "prettier": "^2.8.2"
+  },
+  "scripts": {
+    "test": "bun run src/runner.ts"
+  }
+}
diff --git a/packages/bun-test/src/runner.ts b/packages/bun-test/src/runner.ts
new file mode 100644
index 000000000..37ae1ed05
--- /dev/null
+++ b/packages/bun-test/src/runner.ts
@@ -0,0 +1,79 @@
+import { spawn } from "bun";
+import { readdirSync } from "node:fs";
+import { resolve } from "node:path";
+
+const cwd = resolve("../..");
+const isAction = !!process.env["GITHUB_ACTION"];
+const errorPattern = /error: ([\S\s]*?)(?=\n.*?at (\/.*):(\d+):(\d+))/mgi;
+
+function* findTests(dir: string, query?: string): Generator<string> {
+  for (const entry of readdirSync(resolve(dir), { encoding: "utf-8", withFileTypes: true })) {
+    const path = resolve(dir, entry.name);
+    if (entry.isDirectory()) {
+      yield* findTests(path, query);
+    } else if (entry.isFile() && entry.name.includes(".test.")) {
+      yield path;
+    }
+  }
+}
+
+async function runTest(path: string): Promise<void> {
+  const name = path.replace(cwd, "").slice(1);
+  const runner = await spawn({
+    cwd,
+    cmd: ["bun", "wiptest", path],
+    stdout: "pipe",
+    stderr: "pipe",
+  });
+  const exitCode = await Promise.race([
+    new Promise((resolve) => {
+      setTimeout(() => {
+        runner.kill();
+        resolve(124); // Timed Out
+      }, 60_000);
+    }),
+    runner.exited,
+  ]);
+  if (isAction) {
+    const prefix = exitCode === 0
+      ? "PASS"
+      : `FAIL (exit code ${exitCode})`;
+    console.log(`::group::${prefix} - ${name}`);
+  }
+  for (const stdout of [runner.stdout, runner.stderr]) {
+    if (!stdout) {
+      continue;
+    }
+    const reader = stdout.getReader();
+    while (true) {
+      const { value, done } = await reader.read();
+      if (value) {
+        write(value);
+      }
+      if (done) {
+        break;
+      }
+    }
+  }
+  if (isAction) {
+    console.log("::endgroup::");
+  }
+}
+
+function write(data: Uint8Array): void {
+  console.write(data);
+  if (!isAction) {
+    return;
+  }
+  const text = new TextDecoder().decode(data);
+  for (const [message, _, path, line, col] of text.matchAll(errorPattern)) {
+    const name = path.replace(cwd, "").slice(1);
+    console.log(`::error file=${name},line=${line},col=${col},title=${message}::`);
+  }
+}
+
+const tests = [];
+for (const path of findTests(resolve(cwd, "test/bun.js"))) {
+  tests.push(runTest(path).catch(console.error));
+}
+await Promise.allSettled(tests);
diff --git a/packages/bun-test/tsconfig.json b/packages/bun-test/tsconfig.json
new file mode 100644
index 000000000..1b2f41220
--- /dev/null
+++ b/packages/bun-test/tsconfig.json
@@ -0,0 +1,16 @@
+{
+  "compilerOptions": {
+    "lib": ["ESNext"],
+    "module": "ESNext",
+    "target": "ESNext",
+    "moduleResolution": "node",
+    "types": ["bun-types"],
+    "esModuleInterop": true,
+    "allowJs": true,
+    "strict": true,
+    "resolveJsonModule": true
+  },
+  "include": [
+    "src"
+  ]
+}