Chai assert matchers

[bcmarinacci]

This pull request adds matchers (and tests) for the following Chai assert matchers:

• deepProperty
• notDeepProperty
• deepPropertyVal
• notDeepPropertyVal
• deepPropertyNotVal
• notPropertyVal

I made a tiny repl to ensure the Jest conversions were valid: https://repl.it/repls/TurboRunnyApplicationsuite.

I also noticed that propertyNotVal is actually shown as notPropertyVal in the Chai documentation: https://www.chaijs.com/api/assert/#method_notpropertyval. I changed the method name to match the Chai docs but I am happy to revert that commit if propertyNotVal was actually the correct method name. (Reverted and added as a new method)

[codecov-io]

Codecov Report

Merging #144 into master will increase coverage by 0.07%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #144      +/-   ##
==========================================
+ Coverage   94.89%   94.96%   +0.07%     
==========================================
  Files          24       24              
  Lines        1233     1251      +18     
==========================================
+ Hits         1170     1188      +18     
  Misses         63       63

Impacted Files	Coverage Δ
src/transformers/chai-assert.js	100% <100%> (ø)	⬆️

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[skovhus]

Thanks. About the last commit:

According to chai changelog propertyNotVal and assert. deepPropertyNotVal assertions were renamed to assert.notPropertyVal and assert.

So we shouldn’t remove that property, but also support the new name.

[bcmarinacci]

@skovhus Ah, nice find! Sorry about that. I reverted the last commit and added conversions/tests for notPropertyVal and deepPropertyNotVal.

[skovhus]

Thank you! 🙌