Update PriorityQueue.kt

[imcasper]

"arr" will never be increased for "capacity <= 0"

[codecov-io]

Codecov Report

Merging #6 into master will decrease coverage by 0.07%.
The diff coverage is 66.66%.

@@             Coverage Diff              @@
##             master       #6      +/-   ##
============================================
- Coverage     62.82%   62.74%   -0.08%     
  Complexity      265      265              
============================================
  Files            47       47              
  Lines           858      859       +1     
  Branches        177      178       +1     
============================================
  Hits            539      539              
  Misses          278      278              
- Partials         41       42       +1

Impacted Files	Coverage Δ	Complexity Δ
.../uuddlrlrba/ktalgs/datastructures/PriorityQueue.kt	75.51% <66.66%> (-1.58%)	14 <1> (ø)

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[bmaslakov]

Thanks for submitting the suggestion, would you mind changing tabs to spaces to keep it consistent with the rest of the codebase?

Can you add a test for the exception, too?

[imcasper]

I have corrected

[imcasper]

I think need use for testing kotlin-test-common
Then the test will become trivial

assertFails {
   PriorityQueue <Int> (0)
}

I also think to separate the library from Java. Is it interesting to you?