PowerShell Pester-code Coverage

Continue learning today Pester,invoke-pester has a very NB option called Codecoverage, which can specify the script to be tested, function, or even the range of a fragment, and then he will tell you whether the functionality in this range has been tested.

Let's take a look at the beans. A switchtest function was added to the previous script, and then one of the if functions was tested

Test.ps1

function add {param ([int] $a, [int] $b) $sum = $a + $b $sum}function switchtest{param ([switch] $switch) if ($switch) {return] switch is on '}else{return ' switch is Off '}}

Test.tests.ps1

$here  = Split-Path -Parent  $MyInvocation .mycommand.path$sut =  (split-path - leaf  $MyInvocation. Mycommand.path)  -replace  ' \. Tests\. ',  '.   "$here \ $sut" describe  "Test"  {Context  "Should be test" {     it  "Add 1 and 2 is equal to 3"  {         add 1 2 | Should Be 3    }       It  "Add -1 and 2 is not equal to 0"   {        add -1 2 | should not be 0     }    It  "Test switch option" {         switchtest -switch | Should be  "Switch is on"     }}Context  "should  Beexactly test "{    it " HostName " {         hostname | Should beexactly  "Yli-ise"     }}Context  " Should begreaterthan test "{    it " psversion is above 3 "  {         $PSVersionTable. psversion.major | should  beGreaterThan 3    }}Context  "Should beoftype test" {     It  "Get-aduser type" {        get-aduser yli  | should beoftype microsoft.activedirectory.management.aduser    }} context  "Should exist test" {    it  "C:\temp exist" {          "C:\Temp"  | should exist    }      }context  "Should match test" {    it  "Find email" {          "Jksjsjsjssdjs [email protected] hsosofs"  | should  match  "[a-z0-9!#\$%& ' *+/=?^_ ' {|} ~-]+(?:\. [a-z0-9!#\$%& ' *+/=?^_ ' {|} ~-]+) *@ (?: [A-z0-9] (?: [a-z0-9-]*[a-z0-9])? \.) +[a-z0-9] (?: [a-z0-9-]*[a-z0-9])? "     }     }Context  "Should throw test"  {     It  "Get a non-exist process" {              {Get-Process -Name  "[email protected]#$%&"  - erroraction stop} | should throw    }}context  "Should  Benullorempty test "{    it " Get something from test folder "{             get-childitem  c:\temp | should not benullorempty    }}}

Execution look, and finally he told me that in the script I specified, only 80% of the tests were done, because there was another branch of the IF statement I didn't test.

650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M01/82/DF/wKioL1djhKKAg25VAADEhJ8ZYGY621.png "title=" 9.PNG " alt= "Wkiol1djhkkag25vaadehj8zygy621.png"/>

Change the scope of the script to test only 16-18 rows of content, then the final report indicates that the function of the selection has been tested 100%

650) this.width=650; "src=" Http://s1.51cto.com/wyfs02/M02/82/DF/wKioL1djhX2D2nmWAAC5exxYP4o607.png "title=" 10.PNG "alt=" Wkiol1djhx2d2nmwaac5exxyp4o607.png "/>

This article is from the "Mapo Tofu" blog, please be sure to keep this source http://beanxyz.blog.51cto.com/5570417/1790262

PowerShell Pester-code Coverage