29 KiB
Release Notes
Note
As of 3.0.0, the ReleaseNotes.md file has been deprecated. Please refer to the release notes available on Github. Or the release notes on the chaijs.com website.
2.3.0 / 2015-04-26
Added ownPropertyDescriptor
assertion:
expect('test').to.have.ownPropertyDescriptor('length');
expect('test').to.have.ownPropertyDescriptor('length', { enumerable: false, configurable: false, writable: false, value: 4 });
expect('test').not.to.have.ownPropertyDescriptor('length', { enumerable: false, configurable: false, writable: false, value: 3 });
expect('test').ownPropertyDescriptor('length').to.have.property('enumerable', false);
expect('test').ownPropertyDescriptor('length').to.have.keys('value');
Community Contributions
Code Features & Fixes
- #408 Add
ownPropertyDescriptor
assertion. By @ljharb - #422 Improve ownPropertyDescriptor tests. By @ljharb
Documentation fixes
2.2.0 / 2015-03-26
Deep property strings can now be escaped using \\
- for example:
var deepCss = { '.link': { '[target]': 42 }};
expect(deepCss).to.have.deep.property('\\.link.\\[target\\]', 42)
Community Contributions
Code Features & Fixes
Documentation fixes
- #405 Tweak documentation around deep property escaping. By @keithamus
2.1.2 / 2015-03-15
A minor bug fix. No new features.
Community Contributions
Code Features & Fixes
2.1.1 / 2015-03-04
Two minor bugfixes. No new features.
Community Contributions
Code Features & Fixes
- #385 Fix a bug (also described in
#387) where
deep.property
would not work with single key names. By @eldritch-fossicker - #379 Fix bug where tools which overwrite primitive prototypes, such as Babel or core-js would fail. By @dcneiner
Documentation fixes
- #382 Add doc for showDiff argument in assert. By @astorije
- #383 Improve wording for truncateTreshold docs By @gurdiga
- #381 Improve wording for assert.empty docs By @astorije
2.1.0 / 2015-02-23
Small release; fixes an issue where the Chai lib was incorrectly reporting the version number.
Adds new should.fail()
and expect.fail()
methods, which are convinience
methods to throw Assertion Errors.
Community Contributions
Code Features & Fixes
2.0.0 / 2015-02-09
Unfortunately with 1.10.0 - compatibility broke with older versions because of
the addChainableNoop
. This change has been reverted.
Any plugins using addChainableNoop
should cease to do so.
Any developers wishing for this behaviour can use dirty-chai by @joshperry
Community Contributions
Code Features & Fixes
- #361
.keys()
now accepts Objects, extracting keys from them. By @gregglind - #359
.keys()
no longer mutates passed arrays. By @gregglind - #349 Add a new chainable keyword -
.which
. By @toastynerd - #333 Add
.change
,.increase
and.decrease
assertions. By @cmpolis - #335
chai.util
is now exposed @DingoEatingFuzz - #328 Add
.includes
and.contains
aliases (for.include
and.contain
). By @lo1tuma - #313 Add
.any.keys()
and.all.keys()
qualifiers. By @cjqed - #312 Add
assert.sameDeepMembers()
. By @cjqed - #311 Add
assert.isAbove()
andassert.isBelow()
. By @cjqed - #308
property
anddeep.property
now pass if a value is set toundefined
. By @prodatakey - #309 optimize deep equal in Arrays. By @ericdouglas
- #306 revert #297 - allowing lint-friendly tests. By @keithamus
Documentation fixes
- #357 Copyright year updated in docs. By @danilovaz
- #325 Fix documentation for overwriteChainableMethod. By @chasenlehara
- #334 Typo fix. By @hurrymaplelad
- #317 Typo fix. By @jasonkarns
- #318 Typo fix. By @jasonkarns
- #316 Typo fix. By @jasonkarns
1.10.0 / 2014-11-10
The following changes are required if you are upgrading from the previous version:
- Users:
- No changes required
- Plugin Developers:
- Review
addChainableNoop
notes below.
- Review
- Core Contributors:
- Refresh
node_modules
folder for updated dependencies.
- Refresh
Noop Function for Terminating Assertion Properties
The following assertions can now also be used in the function-call form:
- ok
- true
- false
- null
- undefined
- exist
- empty
- arguments
- Arguments
The above list of assertions are property getters that assert immediately on access. Because of that, they were written to be used by terminating the assertion chain with a property access.
expect(true).to.be.true;
foo.should.be.ok;
This syntax is definitely aesthetically pleasing but, if you are linting your test code, your linter will complain with an error something like "Expected an assignment or function call and instead saw an expression." Since the linter doesn't know about the property getter it assumes this line has no side-effects, and throws a warning in case you made a mistake.
Squelching these errors is not a good solution as test code is getting to be just as important as, if not more than, production code. Catching syntactical errors in tests using static analysis is a great tool to help make sure that your tests are well-defined and free of typos.
A better option was to provide a function-call form for these assertions so that the code's intent is more clear and the linters stop complaining about something looking off. This form is added in addition to the existing property access form and does not impact existing test code.
expect(true).to.be.true();
foo.should.be.ok();
These forms can also be mixed in any way, these are all functionally identical:
expect(true).to.be.true.and.not.false();
expect(true).to.be.true().and.not.false;
expect(true).to.be.true.and.not.false;
Plugin Authors
If you would like to provide this function-call form for your terminating assertion
properties, there is a new function to register these types of asserts. Instead
of using addProperty
to register terminating assertions, simply use addChainableNoop
instead; the arguments to both are identical. The latter will make the assertion
available in both the attribute and function-call forms and should have no impact
on existing users of your plugin.
Community Contributions
- #297 Allow writing lint-friendly tests. @joshperry
- #298 Add check for logging
-0
. @dasilvacontin - #300 Fix #299: the test is defining global variables @julienw
Thank you to all who took time to contribute!
1.9.2 / 2014-09-29
The following changes are required if you are upgrading from the previous version:
- Users:
- No changes required
- Plugin Developers:
- No changes required
- Core Contributors:
- Refresh
node_modules
folder for updated dependencies.
- Refresh
Community Contributions
- #264 Show diff for keys assertions @cjthompson
- #267 Use SVG badges @shinnn
- #268 Allow messages to be functions (sinon-compat) @charlierudolph
- #269 Remove unused argument for #lengthOf @charlierudolph
- #275 Rewrite pretty-printing HTML elements to prevent throwing internal errors @DrRataplan
- #277 Fix assert documentation for #sameMembers @charlierudolph
- #279 closeTo should check value's type before assertion @mohayonao
- #289 satisfy is called twice @charlierudolph
- #292 resolve conflicts with node-webkit and global usage @boneskull
Thank you to all who took time to contribute!
1.9.1 / 2014-03-19
The following changes are required if you are upgrading from the previous version:
- Users:
- Migrate configuration options to new interface. (see notes)
- Plugin Developers:
- No changes required
- Core Contributors:
- Refresh
node_modules
folder for updated dependencies.
- Refresh
Configuration
There have been requests for changes and additions to the configuration mechanisms
and their impact in the Chai architecture. As such, we have decoupled the
configuration from the Assertion
constructor. This not only allows for centralized
configuration, but will allow us to shift the responsibility from the Assertion
constructor to the assert
interface in future releases.
These changes have been implemented in a non-breaking way, but a depretiation
warning will be presented to users until they migrate. The old config method will
be removed in either v1.11.0
or v2.0.0
, whichever comes first.
Quick Migration
// change this:
chai.Assertion.includeStack = true;
chai.Assertion.showDiff = false;
// ... to this:
chai.config.includeStack = true;
chai.config.showDiff = false;
All Config Options
config.includeStack
- @param {Boolean}
- @default
false
User configurable property, influences whether stack trace is included in
Assertion error message. Default of false
suppresses stack trace in the error
message.
config.showDiff
- @param {Boolean}
- @default
true
User configurable property, influences whether or not the showDiff
flag
should be included in the thrown AssertionErrors. false
will always be false
;
true
will be true when the assertion has requested a diff be shown.
config.truncateThreshold (NEW)
- @param {Number}
- @default
40
User configurable property, sets length threshold for actual and expected values in assertion errors. If this threshold is exceeded, the value is truncated.
Set it to zero if you want to disable truncating altogether.
chai.config.truncateThreshold = 0; // disable truncating
Community Contributions
- #228 Deep equality check for memebers. @duncanbeevers
- #247 Proofreading. @didorellano
- #244 Fix
contain
/include
1.9.0 regression. @leider - #233 Improvements to
ssfi
forassert
interface. @refack - #251 New config option: object display threshold. @romario333
Thank you to all who took time to contribute!
Other Bug Fixes
- #183 Allow
undefined
for actual. (internal api) - Update Karam(+plugins)/Istanbul to most recent versions.
1.9.0 / 2014-01-29
The following changes are required if you are upgrading from the previous version:
- Users:
- No changes required
- Plugin Developers:
- Review #219.
- Core Contributors:
- Refresh
node_modules
folder for updated dependencies.
- Refresh
Community Contributions
- #202 Improve error message for .throw(). @andreineculau
- #217 Chai tests can be run with
--watch
. @demands - #219 Add overwriteChainableMethod utility. @demands
- #224 Return error on throw method to chain on error properties. @vbardales
- #226 Add
has
to language chains. @duncanbeevers - #230 Support
{a:1,b:2}.should.include({a:1})
@jkroso - #231 Update Copyright notices to 2014 @duncanbeevers
- #232 Avoid error instantiation if possible on assert.throws. @laconbass
Thank you to all who took time to contribute!
Other Bug Fixes
- #225 Improved AMD wrapper provided by upstream
component(1)
. - #185
assert.throws()
returns thrown error for further assertions. - #237 Remove coveralls/jscoverage, include istanbul coverage report in travis test.
- Update Karma and Sauce runner versions for consistent CI results. No more karma@canary.
1.8.1 / 2013-10-10
The following changes are required if you are upgrading from the previous version:
- Users:
- Refresh
node_modules
folder for updated dependencies.
- Refresh
- Plugin Developers:
- No changes required
- Core Contributors:
- Refresh
node_modules
folder for updated dependencies.
- Refresh
Browserify
This is a small patch that updates the dependency tree so browserify users can install chai. (Remove conditional requires)
1.8.0 / 2013-09-18
The following changes are required if you are upgrading from the previous version:
- Users:
- See
deep.equal
notes.
- See
- Plugin Developers:
- No changes required
- Core Contributors:
- Refresh
node_modules
folder for updated dependencies.
- Refresh
Deep Equals
This version of Chai focused on a overhaul to the deep equal utility. The code for this tool has been removed from the core lib and can now be found at: chai / deep-eql. As stated in previous releases, this is part of a larger initiative to provide transparency, independent testing, and coverage for some of the more complicated internal tools.
For the most part .deep.equal
will behave the same as it has. However, in order to provide a
consistent ruleset across all types being tested, the following changes have been made and might
require changes to your tests.
1. Strict equality for non-traversable nodes according to egal.
Previously: Non-traversable equal via ===
.
expect(NaN).to.deep.equal(NaN);
expect(-0).to.not.deep.equal(+0);
2. Arguments are not Arrays (and all types must be equal):
Previously: Some crazy nonsense that led to empty arrays deep equaling empty objects deep equaling dates.
expect(arguments).to.not.deep.equal([]);
expect(Array.prototype.slice.call(arguments)).to.deep.equal([]);
- #156 Empty object is eql to empty array
- #192 empty object is eql to a Date object
- #194 refactor deep-equal utility
CI and Browser Testing
Chai now runs the browser CI suite using Karma directed at SauceLabs. This means we get to know where our browser support stands... and we get a cool badge:
Look for the list of browsers/versions to expand over the coming releases.
- #195 karma test framework
1.7.2 / 2013-06-27
The following changes are required if you are upgrading from the previous version:
- Users:
- No changes required.
- Plugin Developers:
- No changes required
- Core Contributors:
- Refresh
node_modules
folder for updated dependencies.
- Refresh
Coverage Reporting
Coverage reporting has always been available for core-developers but the data has never been published for our end users. In our ongoing effort to improve accountability this data will now be published via the coveralls.io service. A badge has been added to the README and the full report can be viewed online at the chai coveralls project. Furthermore, PRs will receive automated messages indicating how their PR impacts test coverage. This service is tied to TravisCI.
Other Fixes
- #175 Add
bower.json
. (Fix ignore all)
1.7.1 / 2013-06-24
The following changes are required if you are upgrading from the previous version:
- Users:
- No changes required.
- Plugin Developers:
- No changes required
- Core Contributors:
- Refresh
node_modules
folder for updated dependencies.
- Refresh
Official Bower Support
Support has been added for the Bower Package Manager ([bower.io])(http://bower.io/). Though
Chai could be installed via Bower in the past, this update adds official support via the bower.json
specification file.
- #175 Add
bower.json
.
1.7.0 / 2013-06-17
The following changes are required if you are upgrading from the previous version:
- Users:
- No changes required.
- Plugin Developers:
- Review AssertionError update notice.
- Core Contributors:
- Refresh
node_modules
folder for updated dependencies.
- Refresh
AssertionError Update Notice
Chai now uses chaijs/assertion-error instead an internal constructor. This will allow for further iteration/experimentation of the AssertionError constructor independant of Chai. Future plans include stack parsing for callsite support.
This update constructor has a different constructor param signature that conforms more with the standard
Error
object. If your plugin throws and AssertionError
directly you will need to update your plugin
with the new signature.
var AssertionError = require('chai').AssertionError;
/**
* previous
*
* @param {Object} options
*/
throw new AssertionError({
message: 'An assertion error occurred'
, actual: actual
, expect: expect
, startStackFunction: arguments.callee
, showStack: true
});
/**
* new
*
* @param {String} message
* @param {Object} options
* @param {Function} start stack function
*/
throw new AssertionError('An assertion error occurred', {
actual: actual
, expect: expect
, showStack: true
}, arguments.callee);
// other signatures
throw new AssertionError('An assertion error occurred');
throw new AssertionError('An assertion error occurred', null, arguments.callee);
External Dependencies
This is the first non-developement dependency for Chai. As Chai continues to evolve we will begin adding more; the next will likely be improved type detection and deep equality. With Chai's userbase continually growing there is an higher need for accountability and documentation. External dependencies will allow us to iterate and test on features independent from our interfaces.
Note: The browser packaged version chai.js
will ALWAYS contain all dependencies needed to run Chai.
Community Contributions
- #169 Fix deep equal comparison for Date/Regexp types. @katsgeorgeek
- #171 Add
assert.notOk()
. @Bartvds - #173 Fix
inspect
utility. @domenic
Thank you to all who took the time to contribute!
1.6.1 / 2013-06-05
The following changes are required if you are upgrading from the previous version:
- Users:
- No changes required.
- Plugin Developers:
- No changes required.
- Core Contributors:
- Refresh
node_modules
folder for updated developement dependencies.
- Refresh
Deep Equality
Regular Expressions are now tested as part of all deep equality assertions. In previous versions they silently passed for all scenarios. Thanks to @katsgeorgeek for the contribution.
Community Contributions
- #161 Fix documented name for assert interface's isDefined method. @brandonpayton
- #168 Fix comparison equality of two regexps for when using deep equality. @katsgeorgeek
Thank you to all who took the time to contribute!
Additional Notes
- Mocha has been locked at version
1.8.x
to ensuremocha-phantomjs
compatibility.
1.6.0 / 2013-04-29
The following changes are required if you are upgrading from the previous version:
- Users:
- No changes required.
- Plugin Developers:
- No changes required.
- Core Contributors:
- Refresh
node_modules
folder for updated developement dependencies.
- Refresh
New Assertions
Array Members Inclusion
Asserts that the target is a superset of set
, or that the target and set
have the same members.
Order is not taken into account. Thanks to @NickHeiner for the contribution.
// (expect/should) full set
expect([4, 2]).to.have.members([2, 4]);
expect([5, 2]).to.not.have.members([5, 2, 1]);
// (expect/should) inclusion
expect([1, 2, 3]).to.include.members([3, 2]);
expect([1, 2, 3]).to.not.include.members([3, 2, 8]);
// (assert) full set
assert.sameMembers([ 1, 2, 3 ], [ 2, 1, 3 ], 'same members');
// (assert) inclusion
assert.includeMembers([ 1, 2, 3 ], [ 2, 1 ], 'include members');
Non-inclusion for Assert Interface
Most assert
functions have a negative version, like instanceOf()
has a corresponding notInstaceOf()
.
However include()
did not have a corresponding notInclude()
. This has been added.
assert.notInclude([ 1, 2, 3 ], 8);
assert.notInclude('foobar', 'baz');
Community Contributions
- #140 Restore
call
/apply
methods for plugin interface. @RubenVerborgh - #148/#153 Add
members
andinclude.members
assertions. #NickHeiner
Thank you to all who took time to contribute!
Other Bug Fixes
- #142
assert#include
will no longer silently pass on wrong-type haystack. - #158
assert#notInclude
has been added. - Travis-CI now tests Node.js
v0.10.x
. Support forv0.6.x
has been removed.v0.8.x
is still tested as before.
1.5.0 / 2013-02-03
Migration Requirements
The following changes are required if you are upgrading from the previous version:
- Users:
- Plugin Developers:
- No changes required.
- Core Contributors:
- Refresh
node_modules
folder for updated developement dependencies.
- Refresh
Community Contributions
- #126: Add
eqls
alias foreql
. @RubenVerborgh - #127: Performance refactor for chainable methods. @RubenVerborgh
- #133: Assertion
.throw
support for primitives. @RubenVerborgh - #137: Assertion
.throw
support for empty messages. @timnew - #136: Fix backward negation messages when using
.above()
and.below()
. @whatthejeff
Thank you to all who took time to contribute!
Other Bug Fixes
- Improve type detection of
.a()
/.an()
to work in cross-browser scenarios. - #116:
.throw()
has cleaner display of errors when WebKit browsers. - #120:
.eql()
now works to compare dom nodes in browsers.
Usage Updates
For Users
1. Component Support: Chai now included the proper configuration to be installed as a component. Component users are encouraged to consult chaijs.com for the latest version number as using the master branch does not gaurantee stability.
// relevant component.json
devDependencies: {
"chaijs/chai": "1.5.0"
}
Alternatively, bleeding-edge is available:
$ component install chaijs/chai
2. Configurable showDiff: Some test runners (such as mocha) include support for showing the diff of strings and objects when an equality error occurs. Chai has already included support for this, however some users may not prefer this display behavior. To revert to no diff display, the following configuration is available:
chai.Assertion.showDiff = false; // diff output disabled
chai.Assertion.showDiff = true; // default, diff output enabled
For Plugin Developers
1. New Utility - type: The new utility .type()
is available as a better implementation of typeof
that can be used cross-browser. It handles the inconsistencies of Array, null
, and undefined
detection.
- @param {Mixed} object to detect type of
- @return {String} object type
chai.use(function (c, utils) {
// some examples
utils.type({}); // 'object'
utils.type(null); // `null'
utils.type(undefined); // `undefined`
utils.type([]); // `array`
});
For Core Contributors
1. Browser Testing: Browser testing of the ./chai.js
file is now available in the command line
via PhantomJS. make test
and Travis-CI will now also rebuild and test ./chai.js
. Consequently, all
pull requests will now be browser tested in this way.
Note: Contributors opening pull requests should still NOT include the browser build.
2. SauceLabs Testing: Early SauceLab support has been enabled with the file ./support/mocha-cloud.js
.
Those interested in trying it out should create a free Open Sauce account
and include their credentials in ./test/auth/sauce.json
.