diff --git a/contract/src/common/mod.rs b/contract/src/common/mod.rs
index c0109c9..c4c16d3 100644
--- a/contract/src/common/mod.rs
+++ b/contract/src/common/mod.rs
@@ -6,5 +6,5 @@ pub(crate) mod tests;
 
 pub(crate) fn unix_timestamp(ms: u64) -> UnixTimestamp {
     u32::try_from(ms / 1000)
-        .unwrap_or_else(|err| panic_str(&format!("Failed to get convert milliseconds to Unix timestamp: {err}")))
+        .unwrap_or_else(|err| panic_str(&format!("Failed to get convert milliseconds to Unix timestamp")))
 }
diff --git a/contract/src/common/tests.rs b/contract/src/common/tests.rs
index 74142c1..a2b8f3f 100644
--- a/contract/src/common/tests.rs
+++ b/contract/src/common/tests.rs
@@ -5,7 +5,7 @@ use std::time::Duration;
 use model::api::InitApi;
 use near_sdk::{test_utils::VMContextBuilder, testing_env, AccountId};
 
-use crate::Contract;
+use crate::{common::unix_timestamp, Contract};
 
 pub(crate) struct Context {
     builder: VMContextBuilder,
@@ -138,3 +138,20 @@ pub(crate) mod data {
         assert!(get_test_future_success(name));
     }
 }
+
+#[test]
+fn convert_milliseconds_to_unix_timestamp_successfully() {
+    let millis: u64 = 1_699_038_575_819;
+    let timestamp = unix_timestamp(millis);
+
+    assert_eq!(1_699_038_575, timestamp);
+}
+
+#[test]
+#[should_panic(expected = "Failed to get convert milliseconds to Unix timestamp")]
+fn convert_milliseconds_to_unix_timestamp_with_unsuccessfully() {
+    let millis: u64 = u64::MAX;
+    let timestamp = unix_timestamp(millis);
+
+    assert_eq!(1_699_038_575, timestamp);
+}
diff --git a/contract/src/config/api.rs b/contract/src/config/api.rs
new file mode 100644
index 0000000..20fdb1d
--- /dev/null
+++ b/contract/src/config/api.rs
@@ -0,0 +1,24 @@
+use model::Duration;
+use near_sdk::near_bindgen;
+
+use crate::{Contract, ContractExt};
+
+pub trait ConfigApi {
+    fn set_claim_period(&mut self, period: Duration);
+    fn set_burn_period(&mut self, period: Duration);
+}
+
+#[near_bindgen]
+impl ConfigApi for Contract {
+    fn set_claim_period(&mut self, period: Duration) {
+        self.assert_oracle();
+
+        self.claim_period = period;
+    }
+
+    fn set_burn_period(&mut self, period: Duration) {
+        self.assert_oracle();
+
+        self.burn_period = period;
+    }
+}
diff --git a/contract/src/config/mod.rs b/contract/src/config/mod.rs
new file mode 100644
index 0000000..2220e53
--- /dev/null
+++ b/contract/src/config/mod.rs
@@ -0,0 +1,2 @@
+pub(crate) mod api;
+mod tests;
diff --git a/contract/src/config/tests.rs b/contract/src/config/tests.rs
new file mode 100644
index 0000000..23f1116
--- /dev/null
+++ b/contract/src/config/tests.rs
@@ -0,0 +1,57 @@
+#![cfg(test)]
+
+use crate::{common::tests::Context, config::api::ConfigApi};
+
+#[test]
+fn set_claim_period_by_oracle() {
+    let (mut context, mut contract, accounts) = Context::init_with_oracle();
+
+    let claim_period = 1_000_000;
+    context.switch_account(&accounts.oracle);
+    contract.set_claim_period(claim_period);
+
+    assert_eq!(claim_period, contract.claim_period);
+
+    let claim_period = 3_000_000;
+    context.switch_account(&accounts.oracle);
+    contract.set_claim_period(claim_period);
+
+    assert_eq!(claim_period, contract.claim_period);
+}
+
+#[test]
+#[should_panic(expected = "Unauthorized access")]
+fn set_claim_period_by_not_oracle() {
+    let (mut context, mut contract, accounts) = Context::init_with_oracle();
+
+    let claim_period = 1_000_000;
+    context.switch_account(&accounts.alice);
+    contract.set_claim_period(claim_period);
+}
+
+#[test]
+fn set_burn_period_by_oracle() {
+    let (mut context, mut contract, accounts) = Context::init_with_oracle();
+
+    let burn_period = 1_000_000;
+    context.switch_account(&accounts.oracle);
+    contract.set_burn_period(burn_period);
+
+    assert_eq!(burn_period, contract.burn_period);
+
+    let burn_period = 3_000_000;
+    context.switch_account(&accounts.oracle);
+    contract.set_burn_period(burn_period);
+
+    assert_eq!(burn_period, contract.burn_period);
+}
+
+#[test]
+#[should_panic(expected = "Unauthorized access")]
+fn set_burn_period_by_not_oracle() {
+    let (mut context, mut contract, accounts) = Context::init_with_oracle();
+
+    let burn_period = 1_000_000;
+    context.switch_account(&accounts.alice);
+    contract.set_burn_period(burn_period);
+}
diff --git a/contract/src/lib.rs b/contract/src/lib.rs
index 147ebe4..5a05fd0 100644
--- a/contract/src/lib.rs
+++ b/contract/src/lib.rs
@@ -11,6 +11,7 @@ mod burn;
 mod claim;
 mod clean;
 mod common;
+mod config;
 mod record;
 
 const INITIAL_CLAIM_PERIOD_MS: u32 = 24 * 60 * 60;
@@ -58,16 +59,4 @@ impl InitApi for Contract {
             is_service_call_running: false,
         }
     }
-
-    fn set_claim_period(&mut self, period: Duration) {
-        self.assert_oracle();
-
-        self.claim_period = period;
-    }
-
-    fn set_burn_period(&mut self, period: Duration) {
-        self.assert_oracle();
-
-        self.burn_period = period;
-    }
 }
diff --git a/contract/src/record/mod.rs b/contract/src/record/mod.rs
index 6563534..2220e53 100644
--- a/contract/src/record/mod.rs
+++ b/contract/src/record/mod.rs
@@ -1 +1,2 @@
 pub(crate) mod api;
+mod tests;
diff --git a/contract/src/record/tests.rs b/contract/src/record/tests.rs
new file mode 100644
index 0000000..bfc4444
--- /dev/null
+++ b/contract/src/record/tests.rs
@@ -0,0 +1,35 @@
+#![cfg(test)]
+
+use model::api::{ClaimApi, RecordApi};
+use near_sdk::{json_types::U128, test_utils::accounts};
+
+use crate::common::tests::Context;
+
+#[test]
+fn record_by_oracle() {
+    let (mut context, mut contract, accounts) = Context::init_with_oracle();
+
+    let alice_balance_1 = 1_000_000;
+
+    context.switch_account(&accounts.oracle);
+    contract.record_batch_for_hold(vec![(accounts.alice.clone(), U128(alice_balance_1))]);
+
+    let alice_actual_balance = contract.get_claimable_balance_for_account(accounts.alice.clone());
+    assert_eq!(alice_balance_1, alice_actual_balance.0);
+
+    context.set_block_timestamp_in_seconds(1_000);
+
+    let alice_balance_2 = 500_000;
+    let bob_balance = 200_000;
+
+    contract.record_batch_for_hold(vec![
+        (accounts.alice.clone(), U128(alice_balance_2)),
+        (accounts.bob.clone(), U128(bob_balance)),
+    ]);
+
+    let alice_actual_balance = contract.get_claimable_balance_for_account(accounts.alice.clone());
+    assert_eq!(alice_balance_1 + alice_balance_2, alice_actual_balance.0);
+
+    let bob_actual_balance = contract.get_claimable_balance_for_account(accounts.bob.clone());
+    assert_eq!(bob_balance, bob_actual_balance.0);
+}
diff --git a/model/src/api.rs b/model/src/api.rs
index f55c39f..2fcb749 100644
--- a/model/src/api.rs
+++ b/model/src/api.rs
@@ -6,8 +6,6 @@ use crate::{ClaimAvailabilityView, Duration};
 #[make_integration_version]
 pub trait InitApi {
     fn init(token_account_id: AccountId) -> Self;
-    fn set_claim_period(&mut self, period: Duration);
-    fn set_burn_period(&mut self, period: Duration);
 }
 
 #[make_integration_version]