Hubot

1.1.5

Tests/HubotInstall_Unit_Tests.ps1

#################
# TEST HEADER #
#################

$dscModule = 'Hubot'

$originalLocation = Get-Location

$here = Split-Path -Parent $MyInvocation.MyCommand.Path
Set-Location $here


describe "HubotInstall" {

    ######################################
    # USED FOR TESTING CLASS BASED DSC #
    ######################################

    # To support $root\Tests folder structure
    If (Test-Path "..\$dscModule.psm1") {Copy-Item "..\$dscModule.psm1" 'TestDrive:\script.ps1'}
    # To support $root\Tests\Unit folder structure
    ElseIf (Test-Path "..\..\$dscModule.psm1") {Copy-Item "..\..\$dscModule.psm1" 'TestDrive:\script.ps1'}
    # Or simply throw...
    Else {Throw 'Unable to find source .psm1 file to test against.'}
    
    # Dot source the file to brint classes into current session
    . 'TestDrive:\script.ps1'

    ################
    # TEST START #
    ################

    $guid = (New-Guid).Guid

    context "Get" {
        it "does not throw" {
            { 
                $x = [HubotInstall]::new()
                $x.BotPath = 'C:\myhubot'
                $x.Ensure = 'Present'
                $x.Get() 
            } | Should Not Throw
        }

        it "returns a [HubotInstall] class" {
            $x = [HubotInstall]::new()
            $x.BotPath = 'TestDrive:\'
            $x.Ensure = 'Present'
            $x.Get().GetType().Name | Should Be 'HubotInstall'
        }

        it "returns ensure present if BotPath exists" {
            $fakeModuleFolder = Join-Path $TestDrive 'node_modules'
            New-Item -Path $fakeModuleFolder -ItemType Directory -Force
            $x = [HubotInstall]::new()
            $x.BotPath = $TestDrive
            $x.Get().Ensure | Should Be 'Present'
        }

        it "node modules path should be valid" {
            $fakeModuleFolder = Join-Path $TestDrive 'node_modules'
            New-Item -Path $fakeModuleFolder -ItemType Directory -Force
            $x = [HubotInstall]::new()
            $x.BotPath = $TestDrive
            $x.Get().NodeModulesPath | Should Be $fakeModuleFolder
        }

        it "returns ensure absent if BotPath does not exist" {
            $x = [HubotInstall]::new()
            $x.BotPath = "TestDrive:\$($guid)"
            $x.Get().Ensure | Should Be 'Absent'
        }
    }

    context "Set" {
        BeforeEach {
            $TestClass = [HubotInstall]::new()          

            Mock Start-Process { return $true }

$getCmdMockObject = @"
<Objs Version="1.1.0.1" xmlns="http://schemas.microsoft.com/powershell/2004/04">
  <Obj RefId="0">
    <TN RefId="0">
      <T>System.Management.Automation.ApplicationInfo</T>
      <T>System.Management.Automation.CommandInfo</T>
      <T>System.Object</T>
    </TN>
    <ToString>npm.cmd</ToString>
    <Props>
      <S N="Path">C:\Program Files\nodejs\npm.cmd</S>
      <S N="Extension">.cmd</S>
      <S N="Definition">C:\Program Files\nodejs\npm.cmd</S>
      <S N="Source">C:\Program Files\nodejs\npm.cmd</S>
      <Version N="Version">0.0.0.0</Version>
      <Obj N="Visibility" RefId="1">
        <TN RefId="1">
          <T>System.Management.Automation.SessionStateEntryVisibility</T>
          <T>System.Enum</T>
          <T>System.ValueType</T>
          <T>System.Object</T>
        </TN>
        <ToString>Public</ToString>
        <I32>0</I32>
      </Obj>
      <Obj N="OutputType" RefId="2">
        <TN RefId="2">
          <T>System.Collections.ObjectModel.ReadOnlyCollection`1[[System.Management.Automation.PSTypeName, System.Management.Automation, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]</T>
          <T>System.Object</T>
        </TN>
        <LST>
          <S>System.String</S>
        </LST>
      </Obj>
      <S N="Name">npm.cmd</S>
      <Obj N="CommandType" RefId="3">
        <TN RefId="3">
          <T>System.Management.Automation.CommandTypes</T>
          <T>System.Enum</T>
          <T>System.ValueType</T>
          <T>System.Object</T>
        </TN>
        <ToString>Application</ToString>
        <I32>32</I32>
      </Obj>
      <S N="ModuleName"></S>
      <Nil N="Module" />
      <Obj N="RemotingCapability" RefId="4">
        <TN RefId="4">
          <T>System.Management.Automation.RemotingCapability</T>
          <T>System.Enum</T>
          <T>System.ValueType</T>
          <T>System.Object</T>
        </TN>
        <ToString>PowerShell</ToString>
        <I32>1</I32>
      </Obj>
    </Props>
    <MS>
      <S N="Namespace"></S>
      <S N="HelpUri"></S>
      <Obj N="FileVersionInfo" RefId="5">
        <TN RefId="5">
          <T>System.Diagnostics.FileVersionInfo</T>
          <T>System.Object</T>
        </TN>
        <ToString>File: C:\Program Files\nodejs\npm.cmd_x000D__x000A_InternalName: _x000D__x000A_OriginalFilename: _x000D__x000A_FileVersion: _x000D__x000A_FileDescription: _x000D__x000A_Product: _x000D__x000A_ProductVersion: _x000D__x000A_Debug: False_x000D__x000A_Patched: False_x000D__x000A_PreRelease: False_x000D__x000A_PrivateBuild: False_x000D__x000A_SpecialBuild: False_x000D__x000A_Language: _x000D__x000A_</ToString>
        <Props>
          <Nil N="Comments" />
          <Nil N="CompanyName" />
          <I32 N="FileBuildPart">0</I32>
          <Nil N="FileDescription" />
          <I32 N="FileMajorPart">0</I32>
          <I32 N="FileMinorPart">0</I32>
          <S N="FileName">C:\Program Files\nodejs\npm.cmd</S>
          <I32 N="FilePrivatePart">0</I32>
          <Nil N="FileVersion" />
          <Nil N="InternalName" />
          <B N="IsDebug">false</B>
          <B N="IsPatched">false</B>
          <B N="IsPrivateBuild">false</B>
          <B N="IsPreRelease">false</B>
          <B N="IsSpecialBuild">false</B>
          <Nil N="Language" />
          <Nil N="LegalCopyright" />
          <Nil N="LegalTrademarks" />
          <Nil N="OriginalFilename" />
          <Nil N="PrivateBuild" />
          <I32 N="ProductBuildPart">0</I32>
          <I32 N="ProductMajorPart">0</I32>
          <I32 N="ProductMinorPart">0</I32>
          <Nil N="ProductName" />
          <I32 N="ProductPrivatePart">0</I32>
          <Nil N="ProductVersion" />
          <Nil N="SpecialBuild" />
        </Props>
        <MS>
          <Version N="FileVersionRaw">0.0.0.0</Version>
          <Version N="ProductVersionRaw">0.0.0.0</Version>
        </MS>
      </Obj>
    </MS>
  </Obj>
</Objs>
"@

            $myobj = [System.Management.Automation.PSSerializer]::Deserialize($getCmdMockObject)
            
            Mock Get-Command { return $myobj }

        }

        it "throws when botpath is not found" {
            {
                $TestClass.BotPath = "$TestDrive\$($guid)"
                $result = $TestClass.Get()
                $result.Set()
            } | Should Throw
        }

        it "does not throw when botpath is found and ensure is present" {
            {
                $TestClass.BotPath = "$TestDrive"
                $result = $TestClass.Get()
                $result.Ensure = 'Present'
                $result.Set()
            } | Should Not Throw
        }

        it "throws when npm not found" {
            Mock Get-Command { return $null }

            {
                $fakeModuleFolder = Join-Path $TestDrive 'node_modules'
                New-Item -Path $fakeModuleFolder -ItemType Directory -Force
                $TestClass.BotPath = $TestDrive
                $result = $TestClass.Get()
                $result.Set()
            } | Should Throw
        }

        it "does not throw when npm not found" {
            {
                $fakeModuleFolder = Join-Path $TestDrive 'node_modules'
                New-Item -Path $fakeModuleFolder -ItemType Directory -Force
                $TestClass.BotPath = $TestDrive
                $result = $TestClass.Get()
                $result.Set()
            } | Should Not Throw
        }
                
        it "calls start-process twice to uninstall coffee-script and then npm" {
            $fakeModuleFolder = Join-Path $TestDrive 'node_modules'
            New-Item -Path $fakeModuleFolder -ItemType Directory -Force
            $TestClass.BotPath = $TestDrive
            $result = $TestClass.Get()
            $result.Ensure = 'Absent'
            $result.Set()
            Assert-MockCalled Start-Process 2 -Exactly -ParameterFilter {$FilePath -like "*npm*" -and $ArgumentList -like "*uninstall*"} -Scope It
        }


        it "calls start-process twice to install coffee-script and then npm install" {
            $fakeModuleFolder = Join-Path $TestDrive 'node_modules'
            New-Item -Path $fakeModuleFolder -ItemType Directory -Force
            $TestClass.BotPath = $TestDrive
            $result = $TestClass.Get()
            $result.Set()
            Assert-MockCalled Start-Process 2 -Exactly -ParameterFilter {$FilePath -like "*npm*" -and $ArgumentList -like "*install*"} -Scope It
        }
    }
}

Set-Location $originalLocation