Add smoke tests used for deployments

Author: deadlydog

deploy/Invoke-SmokeTests.ps1

@@ -0,0 +1,21 @@
+# These tests are runs as part of the deployment process to ensure the newly published module is working as expected.
+# These tests run against the installed module, not the source code, so they do not use mocks and are more of a real-world test.
+# Since mocks are not used, we must be careful to not rely on state stored on the machine, such as a module Configuration file.
+# To run these tests on your local machine, see the comments in the BeforeAll block.
+
+BeforeAll {
+	Import-Module -Name YourModuleName -Force
+
+	# To run these tests on your local machine, comment out the Import-Module command above and uncomment the one below.
+	# 	Do this to use the module version from source code, not the installed version.
+	# 	This is necessary to test functionality that you've added to the module, but have not yet published and installed.
+	# Import-Module "$PSScriptRoot\..\src\YourModuleName" -Force
+}
+
+Describe 'Get-HelloWorld' {
+	It 'Should return "Hello, World!"' {
+		$expected = 'Hello, World!*'
+		$result = Get-HelloWorld
+		$result | Should -BeLike $expected
+	}
+}