1 files changed, 90 insertions, 0 deletions
diff --git a/node_modules/selenium-webdriver/test/lib/testutil.js b/node_modules/selenium-webdriver/test/lib/testutil.js
new file mode 100644
index 000000000..e68ca28ba
--- /dev/null
+++ b/node_modules/selenium-webdriver/test/lib/testutil.js
@@ -0,0 +1,90 @@
+// Licensed to the Software Freedom Conservancy (SFC) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The SFC licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+'use strict';
+
+const assert = require('assert');
+const sinon = require('sinon');
+
+
+class StubError extends Error {
+  constructor(opt_msg) {
+    super(opt_msg);
+    this.name = this.constructor.name;
+  }
+}
+exports.StubError = StubError;
+
+exports.throwStubError = function() {
+  throw new StubError;
+};
+
+exports.assertIsStubError = function(value) {
+  assert.ok(value instanceof StubError, value + ' is not a ' + StubError.name);
+};
+
+exports.assertIsInstance = function(ctor, value) {
+  assert.ok(value instanceof ctor, 'Not a ' + ctor.name + ': ' + value);
+};
+
+function callbackPair(cb, eb) {
+  if (cb && eb) {
+    throw new TypeError('can only specify one of callback or errback');
+  }
+
+  let callback = cb ? sinon.spy(cb) : sinon.spy();
+  let errback = eb ? sinon.spy(eb) : sinon.spy();
+
+  function assertCallback() {
+    assert.ok(callback.called, 'callback not called');
+    assert.ok(!errback.called, 'errback called');
+    if (callback.threw()) {
+      throw callback.exceptions[0];
+    }
+  }
+
+  function assertErrback() {
+    assert.ok(!callback.called, 'callback called');
+    assert.ok(errback.called, 'errback not called');
+    if (errback.threw()) {
+      throw errback.exceptions[0];
+    }
+  }
+
+  function assertNeither() {
+    assert.ok(!callback.called, 'callback called');
+    assert.ok(!errback.called, 'errback called');
+  }
+
+  return {
+    callback,
+    errback,
+    assertCallback,
+    assertErrback,
+    assertNeither
+  };
+}
+exports.callbackPair = callbackPair;
+
+
+exports.callbackHelper = function(cb) {
+  let pair = callbackPair(cb);
+  let wrapped = pair.callback.bind(null);
+  wrapped.assertCalled = () => pair.assertCallback();
+  wrapped.assertNotCalled = () => pair.assertNeither();
+  return wrapped;
+};