Expression command for testing

[zix99]

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[codecov-commenter]

Codecov Report

Merging #81 (2a7d817) into master (f7b4e4e) will increase coverage by 0.37%.
The diff coverage is 94.39%.

@@            Coverage Diff             @@
##           master      #81      +/-   ##
==========================================
+ Coverage   87.08%   87.45%   +0.37%     
==========================================
  Files          90       93       +3     
  Lines        3522     3628     +106     
==========================================
+ Hits         3067     3173     +106     
+ Misses        322      319       -3     
- Partials      133      136       +3     

Impacted Files	Coverage Δ
cmd/commands.go	100.00% <ø> (ø)
cmd/expressions.go	92.68% <92.68%> (ø)
pkg/expressions/contextArray.go	100.00% <100.00%> (+100.00%)	⬆️
pkg/expressions/exprofiler/benchmark.go	100.00% <100.00%> (ø)
pkg/expressions/exprofiler/stats.go	100.00% <100.00%> (ø)

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