ACI: Make querying links and nodes possible (#43441)

This functionality was not considered when the module was written, but
there's no reason why it shouldn't be supported.

We had to rework the query string construction and object filtering.
This new functionality allows to filter on arbitrary keys and supports
None values.

This PR fixes various issues with the existing framework, including
querying specific objects using construct_url_4 (i.e.
aci_epg_to_contract and aci_static_binding_to_epg)

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

@@ -8,6 +8,22 @@
     msg: 'Please define the following variables: aci_hostname, aci_username and aci_password.'
   when: aci_hostname is not defined or aci_username is not defined or aci_password is not defined
 
+- name: Ensure contract binding does not exist prior to testing
+  aci_epg_to_contract:
+    host: "{{ aci_hostname }}"
+    username: "{{ aci_username }}"
+    password: "{{ aci_password }}"
+    validate_certs: '{{ aci_validate_certs | default(false) }}'
+    use_ssl: '{{ aci_use_ssl | default(true) }}'
+    use_proxy: '{{ aci_use_proxy | default(true) }}'
+    output_level: '{{ aci_output_level | default("info") }}'
+    tenant: anstest
+    ap: anstest
+    epg: anstest
+    contract_type: provider
+    contract: "anstest_http"
+    state: absent
+
 - name: ensure tenant exists for tests to kick off
   aci_tenant: &aci_tenant_present
     host: "{{ aci_hostname }}"
@@ -43,7 +59,7 @@
   aci_epg_to_contract: &aci_epg_provide_present
     <<: *aci_epg_present
     contract_type: provider
-    contract: "anstest_http"
+    contract: anstest_http
   check_mode: yes
   register: provide_present_check_mode
 
@@ -94,21 +110,21 @@
 - name: present assertions
   assert:
     that:
-      - provide_present_check_mode.changed == true
+      - provide_present_check_mode is changed
       - 'provide_present_check_mode.sent == {"fvRsProv": {"attributes": {"tnVzBrCPName": "anstest_http"}}}'
-      - provide_present.changed == true
+      - provide_present is changed
       - provide_present.sent == provide_present_check_mode.sent
       - provide_present.previous == []
-      - consume_present.changed == true
+      - consume_present is changed
       - consume_present.previous == []
       - 'consume_present.sent == {"fvRsCons": {"attributes": {"tnVzBrCPName": "anstest_db"}}}'
-      - provide_present2.changed == true
+      - provide_present2 is changed
       - provide_present2.previous == []
-      - missing_param_present.failed == true
+      - missing_param_present is failed
       - 'missing_param_present.msg == "state is present but all of the following are missing: ap, contract, epg"'
-      - missing_required_present.failed == true
+      - missing_required_present is failed
       - 'missing_required_present.msg == "missing required arguments: contract_type"'
-      - incompatible_present.failed == true
+      - incompatible_present is failed
       - incompatible_present.msg == "the 'provider_match' is only configurable for Provided Contracts"
 
 - name: get binding
@@ -141,15 +157,15 @@
 - name: query assertions
   assert:
     that:
-      - query_provide_contract.changed == false
+      - query_provide_contract is not changed
       - query_provide_contract.current != []
-      - '"class/fvRsProv.json" in query_provide_contract.url'
-      - query_consume_contract.changed == false
+      - '"uni/tn-anstest/ap-anstest/epg-anstest/rsprov-anstest_https.json" in query_provide_contract.url'
+      - query_consume_contract is not changed
       - query_consume_contract.current != []
-      - '"class/fvRsCons.json" in query_consume_contract.url'
-      - query_all.changed == false
+      - '"uni/tn-anstest/ap-anstest/epg-anstest/rscons-anstest_db.json" in query_consume_contract.url'
+      - query_all is not changed
       - '"class/fvRsProv.json" in query_all.url'
-      - missing_required_query.failed == true
+      - missing_required_query is failed
       - 'missing_required_query.msg == "missing required arguments: contract_type"'
 
 - name: delete consume binding - check mode works
@@ -198,18 +214,18 @@
 - name: absent assertions
   assert:
     that:
-      - consume_absent_check_mode.changed == true
+      - consume_absent_check_mode is changed
       - consume_absent_check_mode.previous.0.fvRsCons is defined
-      - consume_absent.changed == true
+      - consume_absent is changed
       - consume_absent.previous == consume_absent_check_mode.previous
-      - provide_absent.changed == true
+      - provide_absent is changed
       - provide_absent.previous.0.fvRsProv is defined
-      - provide_absent2.changed == true
-      - consume_absent_idempotent.changed == false
+      - provide_absent2 is changed
+      - consume_absent_idempotent is not changed
       - consume_absent_idempotent.previous == []
-      - missing_param_absent.failed == true
+      - missing_param_absent is failed
       - 'missing_param_absent.msg == "state is absent but all of the following are missing: contract"'
-      - missing_required_absent.failed == true
+      - missing_required_absent is failed
       - 'missing_required_absent.msg == "missing required arguments: contract_type"'
 
 - name: cleanup contracts
@@ -223,16 +239,16 @@
   aci_epg:
     <<: *aci_epg_present
     state: absent
-  when: epg_present.changed == true
+  when: epg_present is changed
 
 - name: cleanup ap
   aci_ap:
     <<: *aci_ap_present
     state: absent
-  when: ap_present.changed == true
+  when: ap_present is changed
 
 - name: cleanup tenant
   aci_tenant:
     <<: *aci_tenant_present
     state: absent
-  when: tenant_present.changed == true
+  when: tenant_present is changed