Improve extensibility, add tests

[github-actions[bot]]

Lines Of Code

Language	Files	Lines	Code	Comments	Blanks	Complexity	Bytes
Go	12	1791 (+38)	1422 (+26)	46	323 (+12)	221 (+15)	47.9K (+1.3K)
Go (test)	5 (+4)	268 (+265)	224 (+222)	0	44 (+43)	0	6.1K (+6K)
Makefile	1	44 (+5)	32 (+3)	4 (+1)	8 (+1)	2	1.3K (+118B)
Markdown	1	228 (+4)	182 (+4)	0	46	0	8.5K (+517B)
YAML	7 (+3)	522 (+287)	454 (+258)	38 (+17)	30 (+12)	0	17.3K (+10.4K)

[github-actions[bot]]

Unit Test Coverage

total: (statements) 55.7%

Coverage diff with base branch

```diff github.com/vearutop/plt/fasthttp/job.go RequestCounts 100.0% github.com/vearutop/plt/fasthttp/job.go Read 100.0% github.com/vearutop/plt/fasthttp/job.go Write 100.0% github.com/vearutop/plt/fasthttp/job.go NewJobProducer 86.4% github.com/vearutop/plt/fasthttp/job.go String 94.1% github.com/vearutop/plt/fasthttp/job.go Job 88.9% github.com/vearutop/plt/loadgen/flags.go Prepare 0.0% github.com/vearutop/plt/loadgen/run.go Run 66.3% github.com/vearutop/plt/loadgen/run.go startLiveUIPoller 0.0% github.com/vearutop/plt/loadgen/run.go runLiveUI 0.0% github.com/vearutop/plt/nethttp/job.go RequestCounts 100.0% github.com/vearutop/plt/nethttp/job.go Read 100.0% github.com/vearutop/plt/nethttp/job.go Write 100.0% github.com/vearutop/plt/nethttp/job.go makeTransport 50.0% github.com/vearutop/plt/nethttp/job.go makeTransport1 83.3% github.com/vearutop/plt/nethttp/job.go makeTransport2 0.0% github.com/vearutop/plt/nethttp/job.go makeTransport3 0.0% github.com/vearutop/plt/nethttp/job.go NewJobProducer 91.3% github.com/vearutop/plt/nethttp/job.go String 73.5% github.com/vearutop/plt/nethttp/job.go Job 73.3% github.com/vearutop/plt/plt.go main 0.0% github.com/vearutop/plt/report/print.go PeekBody 100.0% github.com/vearutop/plt/report/print.go ByteSize 100.0% total: (statements) 55.7% ```

[github-actions[bot]]

Go API Changes

# github.com/vearutop/plt/fasthttp
## incompatible changes
(*JobProducer).Print: removed
NewJobProducer: changed from func(github.com/vearutop/plt/nethttp.Flags) *JobProducer to func(github.com/vearutop/plt/nethttp.Flags) (*JobProducer, error)
## compatible changes
(*JobProducer).String: added
JobProducer.PrepareRequest: added

# github.com/vearutop/plt/loadgen
## incompatible changes
Run: changed from func(Flags, JobProducer) to func(Flags, JobProducer) error
## compatible changes
Flags.Output: added

# github.com/vearutop/plt/nethttp
## incompatible changes
(*JobProducer).Print: removed
NewJobProducer: changed from func(Flags, github.com/vearutop/plt/loadgen.Flags) *JobProducer to func(Flags, github.com/vearutop/plt/loadgen.Flags) (*JobProducer, error)
## compatible changes
(*JobProducer).String: added
JobProducer.PrepareRequest: added

# summary
Inferred base version: v0.2.21
Suggested version: v0.3.0

[codecov-commenter]

Codecov Report

:exclamation: No coverage uploaded for pull request base (master@234a327). Click here to learn what that means. The diff coverage is n/a.

@@            Coverage Diff            @@
##             master      #22   +/-   ##
=========================================
  Coverage          ?   48.19%           
=========================================
  Files             ?        6           
  Lines             ?      581           
  Branches          ?        0           
=========================================
  Hits              ?      280           
  Misses            ?      258           
  Partials          ?       43           

Flag	Coverage Δ
unittests	48.19% <0.00%> (?)

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Benchmark Result

Benchmark diff with base branch

``` ```

Benchmark result

``` name time/op pkg:github.com/vearutop/plt/fasthttp goos:linux goarch:amd64 JobProducer_Job-2 32.4µs ± 4% pkg:github.com/vearutop/plt/nethttp goos:linux goarch:amd64 JobProducer_Job-2 1.01ms ± 0% name alloc/op pkg:github.com/vearutop/plt/fasthttp goos:linux goarch:amd64 JobProducer_Job-2 1.85kB ± 0% pkg:github.com/vearutop/plt/nethttp goos:linux goarch:amd64 JobProducer_Job-2 5.92kB ± 0% name allocs/op pkg:github.com/vearutop/plt/fasthttp goos:linux goarch:amd64 JobProducer_Job-2 26.0 ± 0% pkg:github.com/vearutop/plt/nethttp goos:linux goarch:amd64 JobProducer_Job-2 87.0 ± 0% ```