Add lineinfile integration tests for quoted string

Reference #10864

test/integration/roles/test_lineinfile/tasks/main.yml

@@ -355,4 +355,22 @@
     that:
     - "result.stat.checksum == '73b271c2cc1cef5663713bc0f00444b4bf9f4543'"
 
+- name: insert a line into the quoted file with many double quotation strings
+  lineinfile: dest={{output_dir}}/test_quoting.txt line="\"quote\" and \"unquote\""
+  register: result
+
+- name: assert that the quoted file was changed
+  assert:
+    that:
+    - result.changed
+
+- name: stat the quote test file
+  stat: path={{output_dir}}/test_quoting.txt
+  register: result
+
+- name: assert test checksum matches after backref line was replaced
+  assert:
+    that:
+    - "result.stat.checksum == 'b10ab2a3c3b6492680c8d0b1d6f35aa6b8f9e731'"
+
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