powershell.ps1: Ensure Fail-Json() works with Hashtables (#21697)

Without this change a dictionary $result object would be emptied if it
is anything but a PSCustomObject. Now we also support Hashtables.

test/integration/targets/win_async_wrapper/library/async_test.ps1

@@ -19,14 +19,18 @@
 
 $parsed_args = Parse-Args $args
 
-$sleep_delay_sec = Get-AnsibleParam $parsed_args "sleep_delay_sec" -default 0
-$fail_mode = Get-AnsibleParam $parsed_args "fail_mode" -default "success" -validateset "success","graceful","exception"
+$sleep_delay_sec = Get-AnsibleParam -obj $parsed_args -name "sleep_delay_sec" -type "int" -default 0
+$fail_mode = Get-AnsibleParam -obj $parsed_args -name "fail_mode" -type "str" -default "success" -validateset "success","graceful","exception"
 
 If($fail_mode -isnot [array]) {
     $fail_mode = @($fail_mode)
 }
 
-$result = @{changed=$true; module_pid=$pid; module_tempdir=$PSScriptRoot}
+$result = @{
+    changed = $true
+    module_pid = $pid
+    module_tempdir = $PSScriptRoot
+}
 
 If($sleep_delay_sec -gt 0) {
     Sleep -Seconds $sleep_delay_sec
@@ -37,13 +41,13 @@ If($fail_mode -contains "leading_junk") {
     Write-Output "leading junk before module output"
 }
 
+If($fail_mode -contains "graceful") {
+    Fail-Json $result "failed gracefully"
+}
+
 Try {
 
-    If($fail_mode -contains "graceful") {
-        Fail-Json $result "failed gracefully"
-    }
-
-    If($fail_mode -eq "exception") {
+    If($fail_mode -contains "exception") {
         Throw "failing via exception"
     }
 

test/integration/targets/win_async_wrapper/tasks/main.yml

@@ -116,7 +116,7 @@
     that:
     - asyncresult.ansible_job_id is match('\d+\.\d+')
     - asyncresult.finished == 1
-    - asyncresult.changed == false
+    - asyncresult.changed == true
     - asyncresult | failed == true
     - asyncresult.msg == 'failed gracefully'