# Copyright (c) Microsoft Corporation. All rights reserved.

# Licensed under the MIT License.

BeforeAll {

$ruleName = "PSAvoidExclaimOperator"

$ruleSettings = @{

Enable = $true

}

$settings = @{

IncludeRules = @($ruleName)

Rules = @{ $ruleName = $ruleSettings }

}

}

Describe "AvoidExclaimOperator" {

Context "When the rule is not enabled explicitly" {

It "Should not find violations" {

$def = '!$true'

$violations = Invoke-ScriptAnalyzer -ScriptDefinition $def

$violations.Count | Should -Be 0

}

}

Context "Given a line with the exclaim operator" {

It "Should find one violation" {

$def = '!$true'

$violations = Invoke-ScriptAnalyzer -ScriptDefinition $def -Settings $settings

$violations.Count | Should -Be 1

}

}

Context "Given a line with the exclaim operator" {

It "Should replace the exclaim operator with the -not operator" {

$def = '!$true'

$expected = '-not $true'

Invoke-Formatter -ScriptDefinition $def -Settings $settings | Should -Be $expected

}

}

Context "Given a line with the exlaim operator followed by a space" {

It "Should replace the exclaim operator without adding an additional space" {

$def = '! $true'

$expected = '-not $true'

Invoke-Formatter -ScriptDefinition $def -Settings $settings | Should -Be $expected

}

}

Context "Given a line with a string containing an exclamation point" {

It "Should not replace it" {

$def = '$MyVar = "Should not replace!"'

$expected = '$MyVar = "Should not replace!"'

Invoke-Formatter -ScriptDefinition $def -Settings $settings | Should -Be $expected

}

}

}