tests/Measure-CharacterFrequency.tests.ps1
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Describe "Measure-CharacterFrequency" { It "Validates by content, one item" { $characterFrequency = Measure-PsgCharacterFrequency -Content "A" $characterFrequency | Where-Object Name -eq 'A' | Foreach-Object Percent | Should be 100 } It "Validates by content, multiple items" { $characterFrequency = Measure-PsgCharacterFrequency -Content "AB" $characterFrequency | Where-Object Name -eq 'A' | Foreach-Object Percent | Should be 50 $characterFrequency | Where-Object Name -eq 'B' | Foreach-Object Percent | Should be 50 } It "Validates by content, long string" { $characterFrequency = Measure-PsgCharacterFrequency -Content ("A" * 1kb) $characterFrequency | Where-Object Name -eq 'A' | Foreach-Object Percent | Should be 100 } It "Validates whitespace and comments are stripped" { $characterFrequency = Measure-PsgCharacterFrequency -Content "Hello World <# Something in a comment #> Hello # More comment stuff" $characterFrequency | Where-Object Name -eq 'L' | Foreach-Object Percent | Should be 33.333 $characterFrequency | Where-Object Name -eq 'O' | Foreach-Object Percent | Should be 20 $characterFrequency | Where-Object Name -eq 'H' | Foreach-Object Percent | Should be 13.333 $characterFrequency | Where-Object Name -eq 'R' | Foreach-Object Percent | Should be 6.667 $characterFrequency | Where-Object Name -eq 'D' | Foreach-Object Percent | Should be 6.667 $characterFrequency | Where-Object Name -eq 'W' | Foreach-Object Percent | Should be 6.667 $characterFrequency | Measure-Object -Sum Percent | Foreach-Object Sum | Should be 100 } It "Validates processing by path" { $content = "Hello World <# Something in a comment #> Hello # More comment stuff" try { $tempFile = New-TemporaryFile $tempFile | Set-Content -Value $content $characterFrequency = $tempFile | Measure-PsgCharacterFrequency $characterFrequency | Where-Object Name -eq 'L' | Foreach-Object Percent | Should be 33.333 $characterFrequency | Where-Object Name -eq 'O' | Foreach-Object Percent | Should be 20 $characterFrequency | Where-Object Name -eq 'H' | Foreach-Object Percent | Should be 13.333 $characterFrequency | Where-Object Name -eq 'R' | Foreach-Object Percent | Should be 6.667 $characterFrequency | Where-Object Name -eq 'D' | Foreach-Object Percent | Should be 6.667 $characterFrequency | Where-Object Name -eq 'W' | Foreach-Object Percent | Should be 6.667 $characterFrequency | Measure-Object -Sum Percent | Foreach-Object Sum | Should be 100 } finally { Remove-Item $tempFile } } } |