Fix async test script in test262

Signed-off-by: HyukWoo Park <[email protected]>

Author: clover2123

tools/run-tests.py

@@ -176,6 +176,7 @@ def copy_test262_files():
     copy(join(TEST262_OVERRIDE_DIR, 'excludelist.orig.xml'), join(TEST262_DIR, 'excludelist.xml'))
     copy(join(TEST262_OVERRIDE_DIR, 'cth.js'), join(TEST262_DIR, 'harness', 'cth.js'))
     copy(join(TEST262_OVERRIDE_DIR, 'testIntl.js'), join(TEST262_DIR, 'harness', 'testIntl.js'))
+    copy(join(TEST262_OVERRIDE_DIR, 'asyncHelpers.js'), join(TEST262_DIR, 'harness', 'asyncHelpers.js'))
 
     copy(join(TEST262_OVERRIDE_DIR, 'parseTestRecord.py'), join(TEST262_DIR, 'tools', 'packaging', 'parseTestRecord.py'))
     copy(join(TEST262_OVERRIDE_DIR, 'test262.py'), join(TEST262_DIR, 'tools', 'packaging', 'test262.py')) # for parallel running (we should re-implement this for es6 suite)

tools/test/test262/asyncHelpers.js

@@ -0,0 +1,113 @@
+// Copyright (C) 2022 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: |
+    A collection of assertion and wrapper functions for testing asynchronous built-ins.
+defines: [asyncTest]
+---*/
+
+function asyncTest(testFunc) {
+  if (!Object.hasOwn(globalThis, "$DONE")) {
+    throw new Test262Error("asyncTest called without async flag");
+  }
+  if (typeof testFunc !== "function") {
+    $DONE(new Test262Error("asyncTest called with non-function argument"));
+    return;
+  }
+  try {
+    testFunc().then(
+      function () {
+        $DONE();
+      },
+      function (error) {
+        $DONE(error);
+      }
+    );
+  } catch (syncError) {
+    $DONE(syncError);
+  }
+}
+
+assert.throwsAsync = function (expectedErrorConstructor, func, message) {
+  return new Promise(function (resolve) {
+    var innerThenable;
+    if (message === undefined) {
+      message = "";
+    } else {
+      message += " ";
+    }
+    if (typeof func === "function") {
+      try {
+        innerThenable = func();
+        if (
+          innerThenable === null ||
+          typeof innerThenable !== "object" ||
+          typeof innerThenable.then !== "function"
+        ) {
+          message +=
+            "Expected to obtain an inner promise that would reject with a" +
+            expectedErrorConstructor.name +
+            " but result was not a thenable";
+          throw new Test262Error(message);
+        }
+      } catch (thrown) {
+        message +=
+          "Expected a " +
+          expectedErrorConstructor.name +
+          " to be thrown asynchronously but an exception was thrown synchronously while obtaining the inner promise";
+        throw new Test262Error(message);
+      }
+    } else {
+      message +=
+        "assert.throwsAsync called with an argument that is not a function";
+      throw new Test262Error(message);
+    }
+
+    try {
+      resolve(innerThenable.then(
+        function () {
+          message +=
+            "Expected a " +
+            expectedErrorConstructor.name +
+            " to be thrown asynchronously but no exception was thrown at all";
+          throw new Test262Error(message);
+        },
+        function (thrown) {
+          var expectedName, actualName;
+          if (typeof thrown !== "object" || thrown === null) {
+            message += "Thrown value was not an object!";
+            throw new Test262Error(message);
+          } else if (thrown.constructor !== expectedErrorConstructor) {
+            expectedName = expectedErrorConstructor.name;
+            actualName = thrown.constructor.name;
+            if (expectedName === actualName) {
+              message +=
+                "Expected a " +
+                expectedName +
+                " but got a different error constructor with the same name";
+            } else {
+              message +=
+                "Expected a " + expectedName + " but got a " + actualName;
+            }
+            throw new Test262Error(message);
+          }
+        }
+      ));
+    } catch (thrown) {
+      if (typeof thrown !== "object" || thrown === null) {
+        message +=
+          "Expected a " +
+          expectedErrorConstructor.name +
+          " to be thrown asynchronously but innerThenable synchronously threw a value that was not an object ";
+      } else {
+        message +=
+          "Expected a " +
+          expectedErrorConstructor.name +
+          " to be thrown asynchronously but a " +
+          thrown.constructor.name +
+          " was thrown synchronously";
+      }
+      throw new Test262Error(message);
+    }
+  });
+};