Add support to ActionPreference.Break to break into debugger (#8205)

2026-06-08 12:12:50 +00:00 · 2019-08-23 10:34:10 -07:00
parent 27fcb35913
commit 8b9f4124ce
16 changed files with 655 additions and 115 deletions
@@ -1,6 +1,56 @@
 # Copyright (c) Microsoft Corporation. All rights reserved.
 # Licensed under the MIT License.

+Describe 'Basic debugger tests' -tag 'CI' {
+
+    BeforeAll {
+        Register-DebuggerHandler
+    }
+
+    AfterAll {
+        Unregister-DebuggerHandler
+    }
+
+    Context 'The value of $? should be preserved when exiting the debugger' {
+        BeforeAll {
+            $testScript = {
+                function Test-DollarQuestionMark {
+                    [CmdletBinding()]
+                    param()
+                    Get-Process -id ([int]::MaxValue)
+                    if (-not $?) {
+                        'The value of $? was preserved during debugging.'
+                    } else {
+                        'The value of $? was changed to $true during debugging.'
+                    }
+                }
+                $global:DollarQuestionMarkResults = Test-DollarQuestionMark -ErrorAction Break
+            }
+
+            $global:results = @(Test-Debugger -ScriptBlock $testScript -CommandQueue '$?')
+        }
+
+        AfterAll {
+            Remove-Variable -Name DollarQuestionMarkResults -Scope Global -ErrorAction Ignore
+        }
+
+        It 'Should show 2 debugger commands were invoked' {
+            # One extra for the implicit 'c' command that keeps the debugger automation moving
+            $results.Count | Should -Be 2
+        }
+
+        It 'Should have $false output from the first $? command' {
+            $results[0].Output | Should -BeOfType bool
+            $results[0].Output | Should -Not -BeTrue
+        }
+
+        It 'Should have string output showing that $? was preserved as $false by the debugger' {
+            $global:DollarQuestionMarkResults | Should -BeOfType string
+            $global:DollarQuestionMarkResults | Should -BeExactly 'The value of $? was preserved during debugging.'
+        }
+    }
+}
+
 Describe "Breakpoints when set should be hit" -tag "CI" {
    Context "Basic tests" {
        BeforeAll {