Functions/Get-GSuiteAccessToken.Tests.ps1
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Describe "GSuite/Get-GSuiteAccessToken" -Tag "task", "unit" { # Import the function to test . "$($PSScriptRoot)\Get-GSuiteAccessToken.ps1" # Declare external functions and mocks function Invoke-RestMethod { param ($Uri, $Headers, $Body, $Method) return @{ expires_in = 3600 access_token = "token" } } context "when there are no issues" { # Declare mocks mock Invoke-RestMethod { param ($Uri, $Headers, $Body, $Method) return @{ expires_in = 3600 access_token = "token" } } it "retrieves the authentication token given the input values" { # Call the function $output = Get-GSuiteAccessToken -ApplicationId "id" -ClientSecret "secret" ` -RefreshToken "refreshToken" -ErrorAction SilentlyContinue -ErrorVariable errorVariable # Verify the mocks Assert-MockCalled Invoke-RestMethod -Times 1 -Exactly -ParameterFilter { $Uri -eq "https://www.googleapis.com/oauth2/v4/token" -and $Headers.'Content-Type' -eq "application/json" -and $Method -eq "POST" -and $Body -eq @{ client_id = "id" client_secret = "secret" grant_type = "refresh_token" refresh_token = "refreshToken" } | ConvertTo-Json } -Scope it # Verify the output $output | Should Be "token" $errorVariable | Should BeNullOrEmpty } } context "when Invoke-RestMethod throws an exception" { # Declare mocks mock Invoke-RestMethod { throw "error" } it "outputs an error and returns null" { # Call the function $output = Get-GSuiteAccessToken -ApplicationId "id" -ClientSecret "secret" ` -RefreshToken "refreshToken" -ErrorAction SilentlyContinue -ErrorVariable errorVariable 2>$null # Verify the output $output | Should Be $null $errorVariable | Should Not BeNullOrEmpty } } context "when Invoke-RestMethod does not return the token" { # Declare mocks mock Invoke-RestMethod { return @{ expires_in = 3600 } } it "outputs an error and returns null" { # Call the function $output = Get-GSuiteAccessToken -ApplicationId "id" -ClientSecret "secret" ` -RefreshToken "refreshToken" -ErrorAction SilentlyContinue -ErrorVariable errorVariable 2>$null # Verify the output $output | Should Be $null $errorVariable | Should Not BeNullOrEmpty } } } |