harness test: sta.js

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>

test/harness/sta-error.js

+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: >
+    The global `$ERROR` function throws an instance of the global `Test262Error`
+    function with the specified message.
+includes: [sta.js]
+---*/
+var threw = false;
+
+try {
+  $ERROR('This is a test message');
+} catch(err) {
+  threw = true;
+  if (err.constructor !== Test262Error) {
+    throw new Error(
+      'Expected a Test262Error, but a "' + err.constructor.name +
+      '" was thrown.'
+    );
+  }
+  if (err.message !== 'This is a test message') {
+    throw new Error('The error thrown did not define the specified message.');
+  }
+}
+
+if (threw === false) {
+  $ERROR('Expected a Test262Error, but no error was thrown.');
+}

test/harness/sta-override-error.js

+// Copyright (c) 2017 Rick Waldron.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: >
+    Assert that global $ERROR is overridable
+includes: [sta.js]
+---*/
+function BaloneyError() {}
+
+// Override $ERROR
+$ERROR = function() {
+  throw new BaloneyError();
+};
+
+assert.throws(BaloneyError, function() {
+  $ERROR();
+});

test/harness/sta.js

+// Copyright (c) 2017 Rick Waldron.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: >
+    Including sta.js will expose two functions:
+
+        Test262Error
+        $ERROR
+
+includes: [sta.js]
+---*/
+
+assert(typeof Test262Error === "function");
+assert(typeof Test262Error.prototype.toString === "function");
+assert(typeof $ERROR === "function");