Remove default JSON size limitation

changelogs/fragments/win_async-large-data-output.yml

@@ -0,0 +1,2 @@
+bugfixes:
+- win_async - Set maximum data size allowed when deserializing async output - https://github.com/ansible-collections/ansible.windows/pull/520

plugins/modules/async_status.ps1

@@ -34,6 +34,7 @@ Try {
 
     # TODO: move this into module_utils/powershell.ps1?
     $jss = New-Object System.Web.Script.Serialization.JavaScriptSerializer
+    $jss.MaxJsonLength = [int]::MaxValue
     $data = $jss.DeserializeObject($data_raw)
 }
 Catch {

tests/integration/targets/win_async/aliases

@@ -0,0 +1 @@
+shippable/windows/group1

tests/integration/targets/win_async/tasks/main.yml

@@ -0,0 +1,10 @@
+- name: check that a job can deserialize large data
+  win_shell: '"a" * 2097152'
+  async: 60
+  register: async_large_output
+  no_log: true
+
+- name: assert output can deserialize large data
+  assert:
+    that:
+    - async_large_output.stdout == ('a' * 2097152) + "\r\n"