correct jasmine behavior

[maboesanman]

Closes #46

add more allowed possibilities for jasmine matchers

[codecov]

Codecov Report

Merging #47 (c768f26) into master (0900693) will decrease coverage by 2.52%.
The diff coverage is 82.35%.

@@             Coverage Diff             @@
##            master      #47      +/-   ##
===========================================
- Coverage   100.00%   97.47%   -2.53%     
===========================================
  Files            6        6              
  Lines          112      119       +7     
  Branches        25       25              
===========================================
+ Hits           112      116       +4     
- Misses           0        3       +3     

Flag	Coverage Δ
integration	78.15% <82.35%> (-1.32%)	⬇️
jasmine	72.26% <70.58%> (-0.95%)	⬇️
javascript	85.71% <82.35%> (-1.79%)	⬇️
manual	47.05% <23.52%> (-2.05%)	⬇️
mocha	72.26% <64.70%> (-0.95%)	⬇️
unit	69.74% <58.82%> (-0.79%)	⬇️

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Impacted Files	Coverage Δ
src/getGivenFunc.ts	94.11% <80.00%> (-5.89%)	⬇️
src/getContextInfo.ts	100.00% <100.00%> (ø)

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