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node_modules/@weborigami/async-tree/test/browser/testRunner.js

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+/**
+ * A simple test runner for the browser to run the subset of the Node.s test
+ * runner used by the project.
+ */
+
+let promises = {};
+let currentSuite;
+
+const markers = {
+  success: "✅",
+  skipped: "ー",
+  fail: "❌",
+};
+
+export async function describe(name, fn) {
+  promises[name] = [];
+  currentSuite = name;
+  await fn();
+  const results = await Promise.all(promises[name]);
+  const someFailed = results.some((result) => result.result === "fail");
+  const header = `${someFailed ? markers.fail : markers.success} ${name}`;
+  console[someFailed ? "group" : "groupCollapsed"](header);
+  for (const result of results) {
+    const marker = markers[result.result];
+    const name = result.name;
+    const message = result.result === "fail" ? `: ${result.message}` : "";
+    const skipped = result.result === "skipped" ? " [skipped]" : "";
+    console.log(`${marker} ${name}${message}${skipped}`);
+  }
+  console.groupEnd();
+}
+
+// Node test() calls can call an async function, but the test() function isn't
+// declared async. We implicitly wrap the test call with a Promise and add it to
+// the list of promises for the current suite.
+export async function test(name, fn) {
+  promises[currentSuite].push(runTest(name, fn));
+}
+
+test.skip = (name, fn) => {
+  promises[currentSuite].push(Promise.resolve({ result: "skipped", name }));
+};
+
+async function runTest(name, fn) {
+  try {
+    await fn();
+    return { result: "success", name };
+  } catch (/** @type {any} */ error) {
+    return { result: "fail", name, message: error.message };
+  }
+}