objectContaining matcher to output object representation when a test fails

[srosato]

Currently, when passing in an object with objectContaining which does not match the given value, the matcher's toString() method will return the object as an [object Object] representation. I modified the matcher and tests to be able to include the object's representation for easier debugging.

Given this code example:

Using objectContaining with an object that does not match will output this:

And with the fix:

[codecov-commenter]

Codecov Report

Merging #200 into master will increase coverage by 0.15%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #200      +/-   ##
==========================================
+ Coverage   93.55%   93.71%   +0.15%     
==========================================
  Files          34       34              
  Lines         652      652              
  Branches       80       80              
==========================================
+ Hits          610      611       +1     
+ Misses         30       29       -1     
  Partials       12       12              

Impacted Files	Coverage Δ
src/matcher/type/ObjectContainingMatcher.ts	100.00% <100.00%> (+10.00%)	:arrow_up:

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[NagRock]

Thanks