ec2_vol_facts: set filters to default value (#51589)

Fixes: #51554

Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>

lib/ansible/modules/cloud/amazon/ec2_vol_facts.py

@@ -65,9 +65,8 @@ except ImportError:
     pass  # caught by imported HAS_BOTO3
 
 from ansible.module_utils.basic import AnsibleModule
-from ansible.module_utils.ec2 import connect_to_aws, ec2_argument_spec, get_aws_connection_info, boto3_conn, HAS_BOTO3, boto3_tag_list_to_ansible_dict
+from ansible.module_utils.ec2 import ec2_argument_spec, get_aws_connection_info, boto3_conn, HAS_BOTO3, boto3_tag_list_to_ansible_dict
 from ansible.module_utils.ec2 import ansible_dict_to_boto3_filter_list, camel_dict_to_snake_dict
-from ansible.module_utils._text import to_native
 
 
 def get_volume_info(volume, region):
@@ -114,7 +113,6 @@ def list_ec2_volumes(connection, module, region):
 
     try:
         all_volumes = describe_volumes_with_backoff(connection, ansible_dict_to_boto3_filter_list(sanitized_filters))
-
     except ClientError as e:
         module.fail_json(msg=e.response, exception=traceback.format_exc())
 
@@ -128,7 +126,7 @@ def main():
     argument_spec = ec2_argument_spec()
     argument_spec.update(
         dict(
-            filters=dict(default=None, type='dict')
+            filters=dict(default={}, type='dict')
         )
     )
 

test/integration/targets/ec2_vol_facts/tasks/main.yml

@@ -49,6 +49,17 @@
         delete_on_termination: yes
       register: volume
 
+    - name: Gather volume info without any filters
+      ec2_vol_facts:
+          <<: *aws_connection_info
+      register: volume_facts_wo_filters
+      check_mode: no
+
+    - name: Check if facts are returned without filters
+      assert:
+        that:
+          - "volume_facts_wo_filters.volumes is defined"
+
     - name: Gather volume info
       ec2_vol_facts:
           <<: *aws_connection_info