diff --git a/.gitlab-ci.yaml b/.gitlab-ci.yaml
index 3408310a7e98c5f38b6119369507f66b7dad118f..52214acf6abdc1bc22c53df16c21e48a4b649827 100644
--- a/.gitlab-ci.yaml
+++ b/.gitlab-ci.yaml
@@ -73,7 +73,8 @@ hivemind_sync:
 
   script:
     - pip3 install --user --upgrade pip setuptools
-    # WARNING: hardcoded 5000017 for max block
+    # WARNING!!! temporarily hardcoded 5000017 instead $HIVEMIND_MAX_BLOCK
+    # revert that change when $HIVEMIND_MAX_BLOCK will be set to 5000017
     - scripts/ci_sync.sh "$HIVEMIND_DB_NAME" "$HIVEMIND_POSTGRESQL_CONNECTION_STRING" "$HIVEMIND_SOURCE_HIVED_URL" 5000017 $HIVEMIND_HTTP_PORT
 
   artifacts:
@@ -272,6 +273,12 @@ tags_api_smoketest_negative:
   script:
     - scripts/ci_start_api_smoketest.sh localhost "$HIVEMIND_HTTP_PORT" tags_api_negative/ api_smoketest_tags_api_negative.xml
 
+mock_tests:
+  <<: *common_api_smoketest_job
+
+  script:
+    - scripts/ci_start_api_smoketest.sh localhost "$HIVEMIND_HTTP_PORT" mock_tests/ api_smoketest_mock_tests.xml
+
 api_smoketest_benchmark:
   stage: benchmark-tests
   environment: hive-4.pl.syncad.com
diff --git a/mock_data/block_data/follow_op/mock_block_data_follow.json b/mock_data/block_data/follow_op/mock_block_data_follow.json
index d2a7532821ebb878460e8c5a283e6d1dde318702..63d158b848c802573ad6b9e3cb5479e5209e2b84 100644
--- a/mock_data/block_data/follow_op/mock_block_data_follow.json
+++ b/mock_data/block_data/follow_op/mock_block_data_follow.json
@@ -840,7 +840,70 @@
     "transaction_merkle_root": "0000000000000000000000000000000000000000",
     "extensions": [],
     "witness_signature": "",
-    "transactions": [],
+    "transactions": [
+      {
+        "ref_block_num": 100001,
+        "ref_block_prefix": 1,
+        "expiration": "2020-03-23T12:17:00",
+        "operations": [
+          {
+            "type": "custom_json_operation",
+            "value": {
+              "required_auths": [],
+              "required_posting_auths": [
+                "tester1"
+              ],
+              "id": "follow",
+              "json": "[\"follow\",{\"follower\":\"tester1\",\"following\":\"tester2\",\"what\":[\"blog\"]}]"
+            }
+          },
+          {
+            "type": "custom_json_operation",
+            "value": {
+              "required_auths": [],
+              "required_posting_auths": [
+                "tester2"
+              ],
+              "id": "follow",
+              "json": "[\"follow\",{\"follower\":\"tester2\",\"following\":[\"tester3\", \"tester4\"],\"what\":[\"blog\"]}]"
+            }
+          },
+          {
+            "type": "custom_json_operation",
+            "value": {
+              "required_auths": [],
+              "required_posting_auths": [
+                "tester3"
+              ],
+              "id": "follow",
+              "json": "[\"follow\",{\"follower\":\"tester3\",\"following\":[\"tester4\"],\"what\":[\"blog\"]}]"
+            }
+          },
+          {
+            "type": "custom_json_operation",
+            "value": {
+              "required_auths": [],
+              "required_posting_auths": [
+                "tester4"
+              ],
+              "id": "follow",
+              "json": "[\"follow\",{\"follower\":\"tester4\",\"following\":[\"tester5\", \"tester1\"],\"what\":[\"blog\"]}]"
+            }
+          },
+          {
+            "type": "custom_json_operation",
+            "value": {
+              "required_auths": [],
+              "required_posting_auths": [
+                "tester5"
+              ],
+              "id": "follow",
+              "json": "[\"follow\",{\"follower\":\"tester5\",\"following\":[\"tester1\", \"tester2\"],\"what\":[\"blog\"]}]"
+            }
+          }
+        ]
+      }
+    ],
     "block_id": "004c4b4e00000000000000000000000000000000",
     "signing_key": "",
     "transaction_ids": []
diff --git a/tests/tests_api b/tests/tests_api
index f8ac3e6776ef31f23d14a746b6ba6c281382e9cc..682c86040a6d9d8b9b142930982d66e36468a4c7 160000
--- a/tests/tests_api
+++ b/tests/tests_api
@@ -1 +1 @@
-Subproject commit f8ac3e6776ef31f23d14a746b6ba6c281382e9cc
+Subproject commit 682c86040a6d9d8b9b142930982d66e36468a4c7