Attached unit tests for Start-SqlMonitor

Tests/StartSqlMonitor.Tests.ps1

@@ -0,0 +1,43 @@
+
+Import-Module "$PSScriptRoot\..\MonitorFactory.psd1"
+. "$PSScriptRoot\..\Wrappers\StartSqlMonitor.ps1"
+
+Describe "Start-SqlMonitor" {
+
+ Mock Start-Monitor
+ Context "validates path property" {
+
+ It "throws error if path does not exist" {
+ { Start-SqlMonitor -path 'C:\doesnotexist.sql' -server a -database b } | Should Throw 'Cannot find path'
+ Assert-MockCalled Start-Monitor 0 -Scope It
+ }
+ It "throws error if file is empty" {
+ Mock Get-Content { return "" }
+ { Start-SqlMonitor -path 'C:\any.sql' -server a -database b } | Should Throw 'no content found'
+ Assert-MockCalled Start-Monitor 0 -Scope It
+ }
+ }
+ Context "validates other properties" {
+ It "throws error if server not specified" {
+ { Start-SqlMonitor -path 'C:\any.sql' -database b } | Should Throw 'Server must be specified'
+ }
+ It "throws error if database not specified" {
+ { Start-SqlMonitor -path 'C:\any.sql' -server a } | Should Throw 'Database must be specified'
+ }
+ }
+ Context "uses query" {
+ It "from file content if specified" {
+ $content = 'select foo from bar1'
+ $targetFile = 'C:\any.sql'
+ Mock Get-Content { return $content } -param { $Path -eq $targetFile }
+ Start-SqlMonitor -path $targetFile -server a -database b
+ Assert-MockCalled Start-Monitor 1 -Scope It { $ArgumentList[0] -eq $content }
+ }
+ It "from literal if specified" {
+ $content = 'select foo from bar2'
+ Start-SqlMonitor -query $content -server a -database b
+ Assert-MockCalled Start-Monitor 1 -Scope It { $ArgumentList[0] -eq $content }
+ }
+ }
+}
+

Wrappers/StartSqlMonitor.ps1

@@ -3,8 +3,8 @@
 function Start-SqlMonitor (
  [Parameter(ParameterSetName='FileQuery', Mandatory)][string]$path,
  [Parameter(ParameterSetName='InlineQuery', Mandatory)][string]$query,
- [Parameter(Mandatory)][string]$server,
- [Parameter(Mandatory)][string]$database,
+ [string]$server = $(throw 'Server must be specified'),
+ [string]$database = $(throw 'Database must be specified'),
  [string]$title = '',
  [string]$interval = '5sec'
 )