Make fetch_url check the server's certificate on https connections

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

@@ -25,3 +25,23 @@
     that:
     - result.changed 
     - '"OK" in result.msg'
+
+- name: test https fetch to a site with invalid domain
+  get_url:
+    url: "https://kennethreitz.org/"
+    dest: "{{ output_dir }}/shouldnotexist.html"
+  ignore_errors: True
+  register: result
+
+- stat:
+    path: "{{ output_dir }}/shouldnotexist.html"
+  register: stat_result
+
+- debug: var=result
+
+- name: Assert that the file was not downloaded
+  assert:
+    that:
+      - "result.failed == true"
+      - "'Certificate does not belong to ' in result.msg"
+      - "stat_result.stat.exists == false"