JavaScript test runner

2 files changed, 45 insertions, 0 deletions

diff --git a/bin/run-tests.js b/bin/run-tests.js
new file mode 100644
index 0000000..46e7963
--- /dev/null
+++ b/bin/run-tests.js
@@ -0,0 +1,38 @@
+import { opendir } from "fs/promises";
+
+const dir = "gen/javascript/gleam/";
+
+async function main() {
+  console.log("Running tests...");
+
+  let passes = 0;
+  let failures = 0;
+
+  for await (let entry of await opendir(dir)) {
+    if (!entry.name.endsWith("_test.js")) continue;
+    let path = "../" + dir + entry.name;
+    process.stdout.write("\ngleam/" + entry.name.slice(0, -3) + ":\n  ");
+    let module = await import(path);
+
+    for (let fnName of Object.keys(module)) {
+      if (!fnName.endsWith("_test")) continue;
+      try {
+        module[fnName]();
+        process.stdout.write("✨");
+        passes++;
+      } catch (error) {
+        process.stdout.write(`❌ ${fnName}: ${error}\n  `);
+        failures++;
+      }
+    }
+  }
+
+  console.log(`
+
+${passes + failures} tests
+${passes} passes
+${failures} failures`);
+  process.exit(failures ? 1 : 0);
+}
+
+main();
diff --git a/bin/test.sh b/bin/test.sh
new file mode 100644
index 0000000..777c50b
--- /dev/null
+++ b/bin/test.sh
@@ -0,0 +1,7 @@
+set -eu
+
+OUT=gen/javascript
+rm -fr $OUT
+gleam compile-package --name gleam_stdlib --target javascript --src src --test test --out $OUT
+cp src/*.js $OUT/
+node bin/run-tests.js