tests/applied.Tests.ps1
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& (Join-Path $PSScriptRoot '_setup.ps1') 'applied' Describe 'Constant Class' { It 'provides immutable values' { [Math]::Round([ConstantTest]::Euler, 3) | Should -Be 2.718 { [ConstantTest]::Euler = 5 } | Should -Throw -Because 'constants are immutable' [Math]::Round([ConstantTest]::Phi, 3) | Should -Be 1.618 { [ConstantTest]::Phi = 5 } | Should -Throw -Because 'constants are immutable' } } Describe 'ConvertTo-Degree' { It 'can convert radian values to degrees' { $PI = [Math]::Pi 0 | ConvertTo-Degree | Should -Be 0 ($PI / 2) | ConvertTo-Degree | Should -Be 90 $PI | ConvertTo-Degree | Should -Be 180 0,(2 * $PI),(4 * $PI) | ConvertTo-Degree | Should -Be 0,0,0 } } Describe 'ConvertTo-Radian' { It 'can convert degree values to radians' { $PI = [Math]::Pi 0 | ConvertTo-Radian | Should -Be 0 90 | ConvertTo-Radian | Should -Be ($PI / 2) 180 | ConvertTo-Radian | Should -Be $PI 360 | ConvertTo-Radian | Should -Be 0 0,360,720 | ConvertTo-Radian | Should -Be 0,0,0 } } Describe 'Get-EarthRadius' { It 'can return earth radius for a given latitude' { Get-EarthRadius | Should -Be ([ConstantTest]::EarthRadiusEquator) 0 | Get-EarthRadius | Should -Be ([ConstantTest]::EarthRadiusEquator) } } Describe 'Get-Haversine/ArcHaversine' { It 'should return a value in the range [0..1]' { 42,50,77 | Get-Haversine | ForEach-Object { [Math]::Round($_, 5) } | Should -Be 0.12843,0.17861,0.38752 0.12843,0.17861,0.38752 | Get-ArcHaversine | ForEach-Object { [Math]::Round($_) } | Should -Be 42,50,77 42,50,77 | Get-Haversine | Get-ArcHaversine | Should -Be 42,50,77 } It -Skip 'should be provided via static method of Prelude class' { [PreludeTest]::Hav(42), [PreludeTest]::Hav(50), [PreludeTest]::Hav(77) | ForEach-Object { [Math]::Round($_, 5) } | Should -Be 0.12843,0.17861,0.38752 } } Describe 'Get-LogisticSigmoid' { It 'can return values along the logistic sigmoid curve' { 0 | Get-LogisticSigmoid | Should -Be 0.5 [Double]::NegativeInfinity | Get-LogisticSigmoid | Should -Be 0 [Double]::PositiveInfinity | Get-LogisticSigmoid | Should -Be 1 [Double]::PositiveInfinity | Get-LogisticSigmoid -MaximumValue 3 | Should -Be 3 0 | Get-LogisticSigmoid -Derivative | Should -Be 0.25 $Left = [Math]::Round((Get-LogisticSigmoid -5), 10) $Right = [Math]::Round(1 - (Get-LogisticSigmoid 5), 10) $Left | Should -Be $Right -Because 'it is a symmetry property of the logistic function' } } |