Functions/ConvertTo-Array.Tests.ps1
|
describe "BitTitan.Runbooks.Common/ConvertTo-Array" -Tag "module", "unit" { # Import the function to test . "$($PSScriptRoot)\ConvertTo-Array.ps1" it "returns an empty array when given a null value" { # Set up the function input $inputValue = $null # Call the function $output = ConvertTo-Array $inputValue # Verify the output $output.GetType().Name | Should Be "Object[]" $output.length | Should Be 0 } it "returns an empty array when given an empty Object[]" { # Set up the function input $inputValue = @() $inputValue.GetType().Name | Should Be "Object[]" $inputValue.length | Should Be 0 # Call the function $output = ConvertTo-Array $inputValue # Verify the output $output.GetType().Name | Should Be "Object[]" $output.length | Should Be 0 } it "returns an array containing that item when given an Object[] containing one item" { # Set up the function input $inputValue = @() $inputValue += 42 $inputValue.GetType().Name | Should Be "Object[]" $inputValue.length | Should Be 1 # Call the function $output = ConvertTo-Array $inputValue # Verify the output $output.GetType().Name | Should Be "Object[]" $output.length | Should Be 1 $output[0] | Should Be 42 } it "returns an array containing the items when given an Object[] containing multiple items" { # Set up the function input $inputValue = @() $inputValue += 42 $inputValue += 43 $inputValue += 44 $inputValue.GetType().Name | Should Be "Object[]" $inputValue.length | Should Be 3 # Call the function $output = ConvertTo-Array $inputValue # Verify the output $output.GetType().Name | Should Be "Object[]" $output.length | Should Be 3 $output[0] | Should Be 42 $output[1] | Should Be 43 $output[2] | Should Be 44 } it "returns an empty array when given an empty PSObject[]" { # Set up the function input $inputValue = New-Object PSObject[] 0 $inputValue.GetType().Name | Should Be "PSObject[]" $inputValue.length | Should Be 0 # Call the function $output = ConvertTo-Array $inputValue # Verify the output $output.GetType().Name | Should Be "Object[]" $output.length | Should Be 0 } it "returns an array containing the item when given an PSObject[] containing one item" { # Set up the function input $inputValue = New-Object PSObject[] 1 $inputValue[0] = 42 $inputValue.GetType().Name | Should Be "PSObject[]" $inputValue.length | Should Be 1 # Call the function $output = ConvertTo-Array $inputValue # Verify the output $output.GetType().Name | Should Be "Object[]" $output.length | Should Be 1 $output[0] | Should Be 42 } it "returns an array containing the items when given an PSObject[] containing multiple items" { # Set up the function input $inputValue = New-Object PSObject[] 3 $inputValue[0] = 42 $inputValue[1] = 43 $inputValue[2] = 44 $inputValue.GetType().Name | Should Be "PSObject[]" $inputValue.length | Should Be 3 # Call the function $output = ConvertTo-Array $inputValue # Verify the output $output.GetType().Name | Should Be "Object[]" $output.length | Should Be 3 $output[0] | Should Be 42 $output[1] | Should Be 43 $output[2] | Should Be 44 } it "returns an empty array when given a empty List``1" { # Set up the function input $inputValue = New-Object "System.Collections.Generic.List[Int]" $inputValue.GetType().Name | Should Be "List``1" $inputValue.count | Should Be 0 # Call the function $output = ConvertTo-Array $inputValue # Verify the output $output.GetType().Name | Should Be "Object[]" $output.length | Should Be 0 } it "returns an array containing the item when given a List``1 containing one item" { # Set up the function input $inputValue = New-Object "System.Collections.Generic.List[Int]" $inputValue.Add(42) $inputValue.GetType().Name | Should Be "List``1" $inputValue.length | Should Be 1 # Call the function $output = ConvertTo-Array $inputValue # Verify the output $output.GetType().Name | Should Be "Object[]" $output.length | Should Be 1 $output[0] | Should Be 42 } it "returns an array containing the items when given a List``1 containing multiple items" { # Set up the function input $inputValue = New-Object "System.Collections.Generic.List[Int]" $inputValue.Add(42) $inputValue.Add(43) $inputValue.Add(44) $inputValue.GetType().Name | Should Be "List``1" $inputValue.count | Should Be 3 # Call the function $output = ConvertTo-Array $inputValue # Verify the output $output.GetType().Name | Should Be "Object[]" $output.length | Should Be 3 $output[0] | Should Be 42 $output[1] | Should Be 43 $output[2] | Should Be 44 } it "returns an array containing the String when given a single String" { # Set up the function input $inputValue = "stringValue" $inputValue.GetType().Name | Should Be "String" # Call the function $output = ConvertTo-Array $inputValue # Verify the output $output.GetType().Name | Should Be "Object[]" $output.length | Should Be 1 $output[0] | Should Be "stringValue" } it "returns an array containing the Int when given a single Int" { # Set up the function input $inputValue = 42 $inputValue.GetType().Name | Should BeLike "*Int*" # Call the function $output = ConvertTo-Array $inputValue # Verify the output $output.GetType().Name | Should Be "Object[]" $output.length | Should Be 1 $output[0] | Should Be 42 } } |