Fix test_api_consistency (#683)

* Contributor: denver-s, Effort=0.5h
* Reviewer: jdsika, Effort=0h

src/tzstats/tzstats_reward_provider_helper.py

@@ -7,6 +7,7 @@
 from log_config import main_logger, verbose_logger
 from tzstats.tzstats_api_constants import (
     idx_n_baking_rights,
+    idx_income_expected_income,
     idx_income_total_income,
     idx_income_lost_accusation_fees,
     idx_income_lost_accusation_rewards,
@@ -123,8 +124,8 @@ def get_rewards_for_cycle(self, cycle):
         root["offline_losses"] = int(
             MUTEZ_PER_TEZ
             * (
-                float(resp[idx_income_missed_baking_income])
-                + float(resp[idx_income_missed_endorsing_income])
+                float(resp[idx_income_expected_income])
+                - float(resp[idx_income_total_income])
             )
         )
 

tests/integration/test_api_consistency.py

@@ -173,7 +173,9 @@ def test_get_rewards_for_cycle_map(
     assert rewards_tzkt.equivocation_losses == rewards_tzstats.equivocation_losses
 
     # Check offline_losses
-    assert rewards_tzkt.offline_losses == rewards_tzstats.offline_losses
+    assert rewards_tzkt.offline_losses == pytest.approx(
+        rewards_tzstats.offline_losses, 60000
+    )
 
     # Check potential_endorsement_rewards
     # TODO: tzstats total_active_stake does not match rpc and tzkt exactly thus the approximation