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Provide more useful and realistic test examples in CONTRIBUTING.md

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Per advice from @leobalter, based upon content from test/language/expressions/dynamic-import
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Richard Gibson 2019-03-29 14:22:40 -04:00
parent 409c598faf
commit ca8e292310
1 changed files with 34 additions and 10 deletions
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CONTRIBUTING.md
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@ -29,17 +29,39 @@ See the following directory trees for further recommended examples:
A test file has three sections: Copyright, Frontmatter, and Body. A test looks roughly like this: A test file has three sections: Copyright, Frontmatter, and Body. A test looks roughly like this:
```javascript ```javascript
// Copyright (C) 2015 [Contributor Name]. All rights reserved. // Copyright (C) $Year $ContributorName. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file. // This code is governed by the BSD license found in the LICENSE file.
/*--- /*---
description: brief description description: >
info: > brief description, e.g. "Non-numeric input must be rejected with a TypeError"
esid: reference to spec section, e.g. "sec-well-known-symbols"
info: |
verbose test description, multiple lines OK. verbose test description, multiple lines OK.
(info typically contains relevant, direct quote from ECMAScript) (info should contain relevant, direct quotes from ECMAScript if possible)
For example:
String.fromCodePoint ( ..._codePoints_ )
5. Repeat, while _nextIndex_ < _length_
a. Let _next_ be _codePoints_[_nextIndex_].
b. Let _nextCP_ be ? ToNumber(_next_).
d. If _nextCP_ < 0 or _nextCP_ > 0x10FFFF, throw a *RangeError* exception.
features: [example]
---*/ ---*/
[Test Code] var maxCodePoint = 0x10FFFF;
var maxCodePointString = '\u{10FFFF}';
assert.sameValue(String.fromCodePoint(maxCodePoint), maxCodePointString,
'String.fromCodePoint can produce a string including the highest code point');
assert.throws(
RangeError,
function() {
String.fromCodePoint(maxCodePoint + 1);
},
'String.fromCodePoint throws a RangeError when an argument is greater than the highest code point value'
);
``` ```
### Copyright ### Copyright
@ -95,10 +117,12 @@ For example:
esid: sec-weakset.prototype.has esid: sec-weakset.prototype.has
description: Throws TypeError if `this` is not Object. description: Throws TypeError if `this` is not Object.
info: | info: |
WeakSet.prototype.has ( value ) String.fromCodePoint ( ..._codePoints_ )
1. Let S be the this value. 5. Repeat, while _nextIndex_ < _length_
2. If Type(S) is not Object, throw a TypeError exception. a. Let _next_ be _codePoints_[_nextIndex_].
b. Let _nextCP_ be ? ToNumber(_next_).
d. If _nextCP_ < 0 or _nextCP_ > 0x10FFFF, throw a *RangeError* exception.
---*/ ---*/
``` ```