Feature/spy call order by parameter #75

cdgn-coding · 2017-06-29T02:38:26Z

Adds the following assertions

to.have.been.first.called.with
to.have.been.second.called.with
to.have.been.third.called.with
on.nth(i).be.called.with

Regards

stalniy · 2017-06-29T04:56:23Z

Good job!

cdgn-coding · 2017-06-30T00:52:02Z

Thank you @stalniy! Looking forward to contribute.

Regards

keithamus · 2017-06-30T11:18:40Z

This is looking good so far. I'd also like to see some tests that address partial arguments - for example what do these do?

spy(1,2,3)
spy(3,4,5)
// These should definitely pass - let's see tests for that
expect(spy).first.to.be.called.with(1,2,3)
expect(spy).second.to.be.called.with(3,4,5)
expect(spy).first.to.be.called.with.exactly(1,2,3)
expect(spy).second.to.be.called.with.exactly(3,4,5)

// These should definitely fail - let's see tests for that
expect(spy).first.to.be.called.with(3,4,5)
expect(spy).second.to.be.called.with(1,2,3)
expect(spy).first.to.be.called.with.exactly(1)
expect(spy).first.to.be.called.with.exactly(2)
expect(spy).first.to.be.called.with.exactly(3)
expect(spy).second.to.be.called.with.exactly(3)
expect(spy).second.to.be.called.with.exactly(4)
expect(spy).second.to.be.called.with.exactly(5)


// These should definitely pass - let's see tests for that
expect(spy).first.to.not.be.called.with(3,4,5)
expect(spy).second.to.not.be.called.with(1,2,3)
expect(spy).first.to.not.be.called.with.exactly(1)
expect(spy).first.to.not.be.called.with.exactly(2)
expect(spy).first.to.not.be.called.with.exactly(3)
expect(spy).second.to.not.be.called.with.exactly(3)
expect(spy).second.to.not.be.called.with.exactly(4)
expect(spy).second.to.not.be.called.with.exactly(5)

// Should these all pass? My intuition says yes
expect(spy).first.to.be.called.with(2)
expect(spy).first.to.be.called.with(2,3)
expect(spy).first.to.be.called.with(1)
expect(spy).first.to.be.called.with(1,2)
expect(spy).second.to.be.called.with(3,4)
expect(spy).second.to.be.called.with(4,5)
expect(spy).first.to.be.called.with(3)
expect(spy).second.to.be.called.with(3)

// Should these all fail? My intuition says yes
expect(spy).first.to.not.be.called.with(2)
expect(spy).first.to.not.be.called.with(2,3)
expect(spy).first.to.not.be.called.with(1)
expect(spy).first.to.not.be.called.with(1,2)
expect(spy).second.to.not.be.called.with(3,4)
expect(spy).second.to.not.be.called.with(4,5)
expect(spy).first.to.not.be.called.with(3)
expect(spy).second.to.not.be.called.with(3)

cdgn-coding · 2017-07-01T13:16:17Z

Hello @keithamus I would like to have a good definition of nth with and nth exactly with. This is what I'm thinking and please correct me if you don't agree:

nth with ~ given (spy, n, expectedArguments) => the nth call of the spy should be a superset of expectedArguments
nth exactly with ~ given (spy, n, expectedArguments) => the nth call of the spy should be equal as array to expectedArguments

At this moment, I am receiving Error: Invalid Chai property: exactly.with. See docs for proper usage of "exactly".

The first part is actually covered as all the tests without exactly pass or fail as expected. I will update the PR to fit spec 2, this should only require:

Add multiple arguments to existing tests
Add exactly as a property flag
Add exactly case to with method

Regards

keithamus · 2017-07-01T22:44:49Z

Sorry yeah, I forgot the syntax - it should be with.exactly not exactly.with I'll fix my comment. So .called.with - as you rightly say - only ever asserts for subsets of arguments, while .called.with.exactly should test the whole argument set. I believe the same should apply to the nth flags.

cdgn-coding · 2017-07-10T01:56:40Z

@keithamus Sorry for the delay, I had a complicated week. I just added first, second, third and nth with.exactly assertions.

This is the thing I found about your last post:

spy(1, 2, 3)

// passes as {1} is a subset of {1, 2, 3} --- {1, 2, 3} is a superset of {1}
spy.should.be.first.called.with(1)

// passes as {3, 2, 1} is actually a subset of {1, 2, 3}, order does not matter!
spy.should.be.first.called.with(3, 2, 1)

// fails as {4} is not a subset of {1, 2, 3}
spy.should.be.first.called.with(4)

// fails as {1, 2, 4} is not a subset of {1, 2, 3}
spy.should.be.first.called.with(4)

// fails as It is not true for each element of {{1, 2, 2}} its multiplicity 
// is equal to its multiplicity in {{1, 2, 3}}, denoting {{...}} as multiset
spy.should.be.first.called.with(1, 2, 2)

// passes as [1, 2, 3] is equal to [1, 2, 3]
spy.should.be.first.called.with.exactly(1, 2, 3)

// fails as [2, 1, 3] is not equal to [1, 2, 3], order matters!
spy.should.be.first.called.with.exactly(2, 1, 3)

// passes as [1, 2] is not equal to [1, 2, 3], length matters!
spy.should.be.first.called.with.exactly(1, 2)

This open my mind to a some assertion, I may make an issue on this matter.

keithamus · 2017-07-10T06:09:36Z

test/spies.js

@@ -357,47 +434,65 @@ describe('Chai Spies', function () {
    });
  });

-  describe('.always.with.exactly(arg, ...)', function () {
-    it('should pass when called with an argument', function () {
+  describe('.nth(...).with.exactly(arg, ...)', function () {


Curious here why always.with.exactly tests have been removed?

Hey, seems I accidentally replaced those tests. I will be restoring them.

cdgn-coding · 2017-07-13T02:05:04Z

Tests appearently lost, restored. I apologize about that :)

cdgn-coding · 2017-07-17T21:22:57Z

Hello, are there any news on this?

keithamus

Sorry @cnexans - missed the last notification. This all looks great to me! As it's a big change I'd like @stalniy to take a look and merge it if good, but it's a LGTM from me 👍

stalniy

All good, I'd like @cnexans to fix few minor bugs related to documentation and error messages

stalniy · 2017-06-29T04:54:04Z

test/spies.js

+      spy(1);
+      spy(2);
+      spy.should.have.been.first.called.with(1);
+      spy.should.not.have.been.first.called.with(2);


Redundant. Assertion below covers this case

stalniy · 2017-06-29T04:55:02Z

test/spies.js

+      var spy = chai.spy();
+      spy(1);
+      spy(2);
+      spy.should.have.not.been.second.called.with(1);


Redundant. Covered by assertions below

stalniy · 2017-06-29T04:55:31Z

test/spies.js

+      spy(0);
+      spy(1);
+      spy(2);
+      spy.should.have.not.been.third.called.with(1);


Redundant. The same reason

stalniy · 2017-07-20T07:44:30Z

README.md

+```js
+spy('foo');
+spy('bar');
+expect(spy).to.have.been.first.called.with('baz');


I guess it should be to.have.been.THIRD.called as you then say that spy has not been called third time.

stalniy · 2017-07-20T07:49:56Z

lib/spy.js

+      new Assertion(this._obj).to.be.have.been.called.min(nthCall);
+      this.assert(
+          nthCallWith(spy, nthCall - 1, expArgs)
+        , 'expected ' + this._obj + ' to have been called at the ' + ordinalNumber + ' time with #{exp} but got ' + actArgs


actArgs is an array, if so then better to use #{act} and pass 5th argument in this.assert

stalniy · 2017-07-20T07:55:45Z

lib/spy.js

+      new Assertion(this._obj).to.be.have.been.called.min(nthCall);
+      this.assert(
+          _.eql(actArgs, args)
+        , 'expected ' + this._obj + ' to have been called at the ' + ordinalNumber + ' time with exactly #{exp} but got ' + args


same here I guess args can be an array of objects and if so, then you will have not well formatted error messages

stalniy · 2017-07-27T08:09:36Z

@cnexans do you have time to fix this?

cdgn-coding · 2017-07-31T23:50:30Z

Hi @stalniy I'm sorry I've been busy these days. I'll be fixing this next days and report back to you

stalniy · 2017-08-16T18:52:10Z

@cnexans any progress?

update: feature is almost done it'd be good to merge it soon!

stalniy · 2017-09-05T02:51:19Z

@cnexans @keithamus I fixed the issues and squashed commits into one. So, now it looks good and can be merged. By the way found a bug with incorrect arguments call comparison. Fixed that as well :)

cdgn-coding closed this Jun 29, 2017

cdgn-coding reopened this Jun 29, 2017

cdgn-coding mentioned this pull request Jul 1, 2017

How to spy on asynchronous calls #64

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keithamus reviewed Jul 10, 2017

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keithamus approved these changes Jul 17, 2017

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stalniy requested changes Jul 20, 2017

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stalniy mentioned this pull request Jul 27, 2017

refactor(spy): removes reset method #74

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stalniy force-pushed the feature/spy-call-order-by-parameter branch from 287657b to 3d2ba5e Compare September 5, 2017 02:47

feat(spy): adds support for spy.nth call assertions

4b1661c

stalniy force-pushed the feature/spy-call-order-by-parameter branch from 3d2ba5e to 4b1661c Compare September 5, 2017 02:50

stalniy approved these changes Sep 5, 2017

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stalniy merged commit ba7636b into chaijs:master Sep 5, 2017

stalniy mentioned this pull request Sep 5, 2017

Check on spy call order by parameter #59

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Feature/spy call order by parameter #75

Feature/spy call order by parameter #75

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Feature/spy call order by parameter #75

Feature/spy call order by parameter #75

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