v1.1.0

What's Changed

• Update rollup to the latest version 🚀 by @Greenkeeper in #94
• Update rollup to the latest version 🚀 by @Greenkeeper in #95
• Update rollup to the latest version 🚀 by @Greenkeeper in #96
• Update rollup to the latest version 🚀 by @Greenkeeper in #98
• updated interface docs for clarity and to show the proper API by @gregdardis in #105
• Add TypeScript Setup To README by @JimLynchCodes in #111
• chore(travis): updates node versions for testing by @stalniy in #113
• chore(rollup): update rollup to the latest version by @stalniy in #112
• Fix restoring multiple spies by @stalniy in #114
• Replace Travis with GitHub actions by @sebamarynissen in #119
• Support spy.on with nullish prototype by @sebamarynissen in #118

New Contributors

• @Greenkeeper made their first contribution in #94
• @gregdardis made their first contribution in #105
• @JimLynchCodes made their first contribution in #111
• @sebamarynissen made their first contribution in #119

Full Changelog: 1.0.0...v1.1.0

1.0.0 / 2018-01-10

This is a major release which introduces many new featues, such as sandboxes, as well as new convenience methods and assertions.

This major release also comes with some breaking changes:

Breaking Changes

• removed reset method. #35 (@stalniy)
  You will need to update any callsites to spy.reset() to instead assign a new spy to that variable or property.

• exposes original function body in spy.toString calls #93 (@stalniy)
  If you check the spy.toString() output in your tests, this will need to be changed to accomodate for this change.

Features

• added spy.returns #35 (@stalniy)
  Allows to create spies that return constant value

• added spy.on #61 (#38, @stalniy)
  Allows to add spies on existing methods

• added posibility to replace original method when spying with spy.on #68 (#62, @stalniy)

chai.spy.on(array, 'push', returns => 5)
chai.spy.on(array, 'push', function() {
  // custom implementation
})

• added spy.restore #61 (#38, @stalniy)
  Allows to remove spies added by spy.on and restore original method implementation

• added support for sanboxes #61 (#38, @stalniy)
  Now it's possible to create sanboxes and track/restore spies in sandbox

• added support for nth call checks #75 (#59, @cnexans)
  Allows to check spy arguments on specified call

const spy = chai.spy()

spy(1); // first call
spy(2); // second call
spy(3); // third call
spy(i); // nth call

expect(spy).to.have.been.first.called.with(1)
expect(spy).to.have.been.second.called.with(2)
expect(spy).to.have.been.third.called.with(3)
expect(spy).on.nth(i).be.called.with(i)

Bug Fixes

• removed dead links in README #84, #80 (#79, @damianb)
• fixed formatting in README #67 (@jethrolarson)
• added MIT license to package.json #58 (@reiz)
• fixed .with when multiple identical arguments are passed in spy call #56 (#45, @meeber)
• updated reference to github repository #42 (@robcolburn)

Documentation

• better organization for spy methods #92 (@stalniy)
• added documentation about sanboxes #92 (@stalniy)

0.7.1 / 2015-09-21

Added chai-spies to the bower registry!

Community Contributions

• #36 Add bower.json to chai-spies package
  By @rcchen

0.7.0 / 2015-07-24

Added .spy.reset() method, to reset call counters back to 0

var spy = chai.spy('foo');
spy();
spy.should.have.been.called();
spy.reset();
spy.should.not.have.been.called();

Community Contributions

Code Features & Fixes

• #28 add spy.reset method and tests
  By @d48
• #25 Fix travis API key for deployments
  By @keithamus

0.6.0 / 2015-04-24

Added .spy.on and .spy.object to easily make new spies, for example:

// Returns `fs` but with readFile and readFileSync spied on
var fs = chai.spy.object(fs, ['readFile', 'readFileSync']);

// Shortcut for `fs.writeFile = chai.spy(fs.writeFile)`
chai.spy.on(fs, 'writeFile');

Added new assertions:

• .called.min(n)/.at.least(n) to assert a spy has been called a minimum of
  n many times.
• .called.max(n)/.at.most(n) to assert that a spy has been called at most n
  number of times.

Community Contributions

Code Features & Fixes

• #9 Add support for component
  By @pgherveou
• #15 Add above/below/at.most/
  at.least call count assertions.
  By @brandonhorst
• #20 Fix output for .called()
  By @Ryckes
• #21 Add .spy.on and .spy.object
  methods.
  By @stalniy

Documentation fixes

• #10 Fix documentation with once
  By @pgherveou
• #16 Add .with docs
  By @plaxdan
• #17 Fix small typo in docs
  By @Ryuno-Ki
• #19 Fix a handful of typos in
  README.md
  By @sateffen

0.5.1 / 2012-11-15

Small bugfix, fixing the output of the .called(n) assertion error.

0.5.0 / 2012-11-14

A few new features:

• Add .with() and .exactly.with() assertion for asserting what arguments
  a spy was called with.

0.4.0 / 2012-10-09

Ensure spies return the value of their wrapped functions

Community Contributions

Code Features & Fixes

• #5 Make spies have a return value.
  By @tregusti

0.3.0 / 2012-07-11

Add ability for spies to have an (optional) name.

Community Contributions

Code Features & Fixes

• #3 Add an optional name to spies
  By @tregusti

Documentation fixes

• #2 Fix typos in called.twice
  assertion
  By @tregusti
• #3 Fix various typos
  By @tregusti

0.2.3 / 2012-07-09

Small bugfixes, improving the AMD wraper