Incompatible with chai 3.4.0?

[elado]

var x = 0;

expect(function() { x += 1; }).to.change(function() { return x });
expect(function() {     }).not.to.change(function() { return x });

error:

AssertionError: expected [Function] to have a property undefined
at Assertion.assertChanges (node_modules/chai/lib/chai/core/assertions.js:1604:40)
at Assertion.assert (node_modules/chai/lib/chai/utils/addChainableMethod.js:83:49)

[timruffles]

Thanks for reminding me.

Yes - unfortunately chai added a not great change implementation of its own.

Will put in a helpful error message when used with chai 1.x

On Tuesday, 27 October 2015, Elad Ossadon notifications@github.com wrote:

var x = 0;

expect(function() { x += 1; }).to.change(function() { return x });
expect(function() { }).not.to.change(function() { return x });

error:

AssertionError: expected [Function] to have a property undefined
at Assertion.assertChanges (node_modules/chai/lib/chai/core/assertions.js:1604:40)
at Assertion.assert (node_modules/chai/lib/chai/utils/addChainableMethod.js:83:49)

—
Reply to this email directly or view it on GitHub
#4.

[timruffles]

Fixed in 2.0.0 :)