diff options
Diffstat (limited to 'js/src/tests/test262/language/statements/class/subclass/builtin-objects/Promise/regular-subclassing.js')
-rw-r--r-- | js/src/tests/test262/language/statements/class/subclass/builtin-objects/Promise/regular-subclassing.js | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/class/subclass/builtin-objects/Promise/regular-subclassing.js b/js/src/tests/test262/language/statements/class/subclass/builtin-objects/Promise/regular-subclassing.js new file mode 100644 index 0000000000..397e452cf0 --- /dev/null +++ b/js/src/tests/test262/language/statements/class/subclass/builtin-objects/Promise/regular-subclassing.js @@ -0,0 +1,38 @@ +// Copyright (C) 2016 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +es6id: 25.4.3 +description: Subclassing the Promise object +info: | + 25.4.3 The Promise Constructor + + ... + + The Promise constructor is designed to be subclassable. It may be used as the + value in an extends clause of a class definition. Subclass constructors that + intend to inherit the specified Promise behaviour must include a super call + to the Promise constructor to create and initialize the subclass instance with + the internal state necessary to support the Promise and Promise.prototype + built-in methods. +---*/ + +class Prom extends Promise {} + +assert.throws(TypeError, function() { + new Prom(); +}); + +var calledExecutor = false; +var executorArguments; + +var prom1 = new Prom(function() { + calledExecutor = true; + executorArguments = arguments; +}); + +assert(calledExecutor); +assert.sameValue(executorArguments.length, 2); +assert.sameValue(typeof executorArguments[0], "function"); +assert.sameValue(typeof executorArguments[1], "function"); + +reportCompare(0, 0); |