diff --git a/gov/staker/api_staker_test.gno b/gov/staker/api_staker_test.gno
new file mode 100644
index 000000000..985be8d41
--- /dev/null
+++ b/gov/staker/api_staker_test.gno
@@ -0,0 +1,120 @@
+package staker
+
+import (
+	"std"
+	"testing"
+	"time"
+
+	"gno.land/p/demo/avl"
+	"gno.land/p/demo/json"
+	"gno.land/p/demo/testutils"
+	"gno.land/p/demo/uassert"
+)
+
+func TestGetLockedInfoByAddress(t *testing.T) {
+	addr := testutils.TestAddress("locked_info_test")
+
+	now := uint64(time.Now().Unix())
+	lockedGNSList := []lockedGNS{
+		{amount: 1000, unlock: now - 100},     // already unlocked
+		{amount: 2000, unlock: now + 100},     // still locked
+		{amount: 3000, unlock: now - 50},      // already unlocked
+	}
+	addrLockedGns.Set(addr.String(), lockedGNSList)
+
+	result := GetLockedInfoByAddress(addr)
+
+	node := json.Must(json.Unmarshal([]byte(result)))
+
+	uassert.True(t, node.HasKey("height"))
+	uassert.True(t, node.HasKey("now"))
+	uassert.True(t, node.HasKey("totalLocked"))
+	uassert.True(t, node.HasKey("claimableAmount"))
+
+	// summation of all the locked quantities
+	totalLocked, err := node.MustKey("totalLocked").GetString()
+	uassert.NoError(t, err)
+	uassert.Equal(t, totalLocked, "6000") // 1000 + 2000 + 3000 = 6000
+
+	claimableAmount, err := node.MustKey("claimableAmount").GetString()
+	uassert.NoError(t, err)
+	uassert.Equal(t, claimableAmount, "4000") // 1000 + 3000 = 4000
+}
+
+func TestGetLockedInfoByAddress_NoLocks(t *testing.T) {
+	addr := testutils.TestAddress("no_locks_test")
+
+	// no quantities are locked here
+	result := GetLockedInfoByAddress(addr)
+	uassert.Equal(t, result, "")
+}
+
+func TestGetLockedInfoByAddress_EmptyLocks(t *testing.T) {
+	addr := testutils.TestAddress("empty_locks_test")
+
+	addrLockedGns.Set(addr.String(), []lockedGNS{})
+
+	result := GetLockedInfoByAddress(addr)
+
+	node := json.Must(json.Unmarshal([]byte(result)))
+	uassert.True(t, node.HasKey("height"))
+	uassert.True(t, node.HasKey("now"))
+	uassert.True(t, node.HasKey("totalLocked"))
+	uassert.True(t, node.HasKey("claimableAmount"))
+
+	totalLocked, err := node.MustKey("totalLocked").GetString()
+	uassert.NoError(t, err)
+	uassert.Equal(t, totalLocked, "0")
+
+	claimableAmount, err := node.MustKey("claimableAmount").GetString()
+	uassert.NoError(t, err)
+	uassert.Equal(t, claimableAmount, "0")
+}
+
+func TestGetClaimableRewardByAddress(t *testing.T) {
+	addr := testutils.TestAddress("claimable_test")
+	userEmissionReward.Set(addr.String(), uint64(1000))
+
+	pfTree := avl.NewTree()
+	pfTree.Set("token1:token2", uint64(500))
+	pfTree.Set("token2:token3", uint64(300))
+	userProtocolFeeReward.Set(addr.String(), pfTree)
+
+	result := GetClaimableRewardByAddress(addr)
+
+	node := json.Must(json.Unmarshal([]byte(result)))
+
+	uassert.True(t, node.HasKey("height"))
+	uassert.True(t, node.HasKey("now"))
+
+	emissionReward, err := node.MustKey("emissionReward").GetString()
+	uassert.NoError(t, err)
+	uassert.Equal(t, emissionReward, "1000")
+
+	protocolFees := node.MustKey("protocolFees")
+	uassert.True(t, protocolFees.IsArray())
+
+	protocolFees.ArrayEach(func(i int, fee *json.Node) {
+		tokenPath, err := fee.MustKey("tokenPath").GetString()
+		uassert.NoError(t, err)
+
+		amount, err := fee.MustKey("amount").GetString()
+		uassert.NoError(t, err)
+
+		switch tokenPath {
+		case "token1:token2":
+			uassert.Equal(t, amount, "500")
+		case "token2:token3":
+			uassert.Equal(t, amount, "300")
+		default:
+			t.Errorf("unexpected tokenPath: %s", tokenPath)
+		}
+	})
+}
+
+func TestGetClaimableRewardByAddress_NoRewards(t *testing.T) {
+	addr := testutils.TestAddress("no_reward_test")
+
+	result := GetClaimableRewardByAddress(addr)
+	uassert.Equal(t, result, "")
+}
\ No newline at end of file
diff --git a/launchpad/tests/__TEST_launchpad_tier_all_single_deposit_reward_by_proejct_tier_test.gno b/launchpad/tests/__TEST_launchpad_tier_all_single_deposit_reward_by_proejct_tier_test.gnoA
similarity index 100%
rename from launchpad/tests/__TEST_launchpad_tier_all_single_deposit_reward_by_proejct_tier_test.gno
rename to launchpad/tests/__TEST_launchpad_tier_all_single_deposit_reward_by_proejct_tier_test.gnoA