Use System.Xml.XmlDocument.Load rather than Get-Content to avoid (#49206)

encoding errors when writing out XML

removing executable bit

refactor tests to handle sanity checking

changelogs/fragments/48471-win_xml-xml-parser.yaml

@@ -0,0 +1,2 @@
+bugfixes:
+  - win_xml - use New-Object System.Xml.XmlDocument rather than Get-Content for parsing xml (https://github.com/ansible/ansible/issues/48471)

lib/ansible/modules/windows/win_xml.ps1

@@ -107,9 +107,10 @@ If (-Not (Test-Path -Path $dest -PathType Leaf)){
     Fail-Json $result "Specified path $dest does not exist or is not a file."
 }
 
-[xml]$xmlorig = $null
+$xmlorig = New-Object -TypeName System.Xml.XmlDocument
+$xmlorig.XmlResolver = $null
 Try {
-    [xml]$xmlorig = Get-Content -Path $dest
+    $xmlorig.Load($dest)
 }
 Catch {
     Fail-Json $result "Failed to parse file at '$dest' as an XML document: $($_.Exception.Message)"

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

@@ -71,3 +71,54 @@
   assert:
     that:
     - not attribute_changed_result is changed
+
+# This testing is for https://github.com/ansible/ansible/issues/48471
+# The issue was that an .xml with no encoding declaration, but a UTF8 BOM
+# with some UTF-8 characters was being written out with garbage characters.
+# The characters added by win_xml were not UTF-8 characters.
+
+- name: copy test files (https://github.com/ansible/ansible/issues/48471)
+  win_copy:
+    src: plane.zip
+    dest: "{{ win_output_dir }}\\plane.zip"
+
+- name: unarchive the test files
+  win_unzip:
+    src: "{{ win_output_dir }}\\plane.zip"
+    dest: "{{ win_output_dir }}\\"
+
+- name: change a text value in a file with UTF8 BOM and armenian characters in the description
+  win_xml:
+    path: "{{ win_output_dir }}\\plane-utf8-bom-armenian-characters.xml"
+    xpath: '/plane/year'
+    type: text
+    fragment: '1988'
+
+- name: register the sha1 of the new file
+  win_stat:
+    path: "{{ win_output_dir }}\\plane-utf8-bom-armenian-characters.xml"
+    get_checksum: yes
+  register: sha1_checksum
+
+- name: verify the checksum
+  assert:
+    that:
+      - sha1_checksum.stat.checksum == 'e3e18c3066e1bfce9a5cf87c81353fa174440944'
+
+- name: change a text value in a file with UTF-16 BE BOM and Chinese characters in the description
+  win_xml:
+    path: "{{ win_output_dir }}\\plane-utf16be-bom-chinese-characters.xml"
+    xpath: '/plane/year'
+    type: text
+    fragment: '1988'
+
+- name: register the sha1 of the new file
+  win_stat:
+    path: "{{ win_output_dir}}\\plane-utf16be-bom-chinese-characters.xml"
+    get_checksum: yes
+  register: sha1_checksum
+
+- name: verify the checksum
+  assert:
+    that:
+      - sha1_checksum.stat.checksum == 'de86f79b409383447cf4cf112b20af8ffffcfdbf'