win_copy: fix for copying encrypted file without pass (#31084)

* win_copy: fix for copying encrypted file without pass

* fix pep8 issue

* reduced the diff and fixed some minor issues

test/integration/targets/win_copy/tasks/tests.yml

@@ -26,6 +26,32 @@
   register: fail_missing_parent_dir
   failed_when: "'Destination directory ' + test_win_copy_path + '\\missing-dir does not exist' not in fail_missing_parent_dir.msg"
 
+- name: fail to copy an encrypted file without the password set
+  win_copy:
+    src: '{{role_path}}/files-vault/vault-file'
+    dest: '{{test_win_copy_path}}\file'
+  register: fail_copy_encrypted_file
+  ignore_errors: yes # weird failed_when doesn't work in this case
+
+- name: assert failure message when copying an encrypted file without the password set
+  assert:
+    that:
+    - fail_copy_encrypted_file|failed
+    - fail_copy_encrypted_file.msg == 'A vault password or secret must be specified to decrypt {{role_path}}/files-vault/vault-file'
+
+- name: fail to copy a directory with an encrypted file without the password
+  win_copy:
+    src: '{{role_path}}/files-vault'
+    dest: '{{test_win_copy_path}}'
+  register: fail_copy_directory_with_enc_file
+  ignore_errors: yes
+
+- name: assert failure message when copying a directory that contains an encrypted file without the password set
+  assert:
+    that:
+    - fail_copy_directory_with_enc_file|failed
+    - fail_copy_directory_with_enc_file.msg == 'A vault password or secret must be specified to decrypt {{role_path}}/files-vault/vault-file'
+
 - name: copy with content (check mode)
   win_copy:
     content: a