improved_coverage for output_engine

[SinghHrmn]

Changes

• changed filename generation function in OutputEngine.py. Changed : to - because : is not a valid name character in Windows. And was the reason my tests were failing in windows.
• Improved Coverage for cve_bin_tool/OutputEngine.py (98% from 68.24%)

[codecov-io]

Codecov Report

Merging #603 into master will decrease coverage by 8.58%.
The diff coverage is 98.14%.

@@            Coverage Diff             @@
##           master     #603      +/-   ##
==========================================
- Coverage   84.20%   75.61%   -8.59%     
==========================================
  Files          63       63              
  Lines        2494     2547      +53     
  Branches      497      505       +8     
==========================================
- Hits         2100     1926     -174     
- Misses        270      460     +190     
- Partials      124      161      +37     

Flag	Coverage Δ
#longtests	75.61% <98.14%> (-8.59%)	⬇️

Impacted Files	Coverage Δ
test/test_output_engine.py	98.82% <98.11%> (-1.18%)	⬇️
cve_bin_tool/OutputEngine.py	97.64% <100.00%> (+29.41%)	⬆️
cve_bin_tool/cvedb.py	52.52% <0.00%> (-30.98%)	⬇️
test/test_json.py	60.60% <0.00%> (-30.31%)	⬇️
cve_bin_tool/checkers/cups.py	72.22% <0.00%> (-27.78%)	⬇️
cve_bin_tool/checkers/rsyslog.py	72.22% <0.00%> (-27.78%)	⬇️
cve_bin_tool/checkers/wireshark.py	72.22% <0.00%> (-27.78%)	⬇️
cve_bin_tool/checkers/postgresql.py	72.22% <0.00%> (-27.78%)	⬇️
cve_bin_tool/checkers/strongswan.py	72.22% <0.00%> (-27.78%)	⬇️
cve_bin_tool/checkers/xml2.py	54.90% <0.00%> (-27.46%)	⬇️
... and 24 more

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[terriko]

Yay! Every time I opened the coverage reports, I thought "huh, should file a bug about OutputEngine coverage" so I'm very glad to see it improved.

[terriko]

Although it is amusing that codecov is complaining. I really need to understand how to get it to give us meaningful data; apparently my last intuition wasn't correct.