diff --git a/.Lib9c.Tests/Model/Stake/ContractTest.cs b/.Lib9c.Tests/Model/Stake/ContractTest.cs
index 5c5bf3e8c1..739c8b83e4 100644
--- a/.Lib9c.Tests/Model/Stake/ContractTest.cs
+++ b/.Lib9c.Tests/Model/Stake/ContractTest.cs
@@ -19,7 +19,7 @@ public class ContractTest
             Contract.StakeRegularRewardSheetPrefix + "test",
             long.MaxValue,
             long.MaxValue)]
-        public void Constructor_Default(
+        public void Constructor(
             string stakeRegularFixedRewardSheetTableName,
             string stakeRegularRewardSheetTableName,
             long rewardInterval,
@@ -127,7 +127,7 @@ public void Constructor_With_StakePolicySheet_Throw_ArgumentNullException()
         [Theory]
         [InlineData(StakePolicySheetFixtures.V1)]
         [InlineData(StakePolicySheetFixtures.V2)]
-        public void Constructor_StakePolicySheet(string stakePolicySheetCsv)
+        public void Constructor_With_StakePolicySheet(string stakePolicySheetCsv)
         {
             var sheet = new StakePolicySheet();
             sheet.Set(stakePolicySheetCsv);
diff --git a/.Lib9c.Tests/Model/Stake/StakeStateV2Test.cs b/.Lib9c.Tests/Model/Stake/StakeStateV2Test.cs
index f637384f19..924baefb0f 100644
--- a/.Lib9c.Tests/Model/Stake/StakeStateV2Test.cs
+++ b/.Lib9c.Tests/Model/Stake/StakeStateV2Test.cs
@@ -19,7 +19,7 @@ public void DeriveAddress()
         [Theory]
         [InlineData(0, 0)]
         [InlineData(long.MaxValue, long.MaxValue)]
-        public void Constructor_Default(long startedBlockIndex, long receivedBlockIndex)
+        public void Constructor(long startedBlockIndex, long receivedBlockIndex)
         {
             var contract = new Contract(
                 Contract.StakeRegularFixedRewardSheetPrefix,
@@ -60,7 +60,7 @@ public void Constructor_Throw_ArgumentOutOfRangeException(
         [InlineData(0, 0)]
         [InlineData(long.MaxValue, null)]
         [InlineData(long.MaxValue, long.MaxValue)]
-        public void Constructor_StakeState(long startedBlockIndex, long? receivedBlockIndex)
+        public void Constructor_With_StakeState(long startedBlockIndex, long? receivedBlockIndex)
         {
             var stakeState = new StakeState(
                 new PrivateKey().ToAddress(),
@@ -82,7 +82,7 @@ public void Constructor_StakeState(long startedBlockIndex, long? receivedBlockIn
         }
 
         [Fact]
-        public void Constructor_StakeState_Throw_ArgumentNullException()
+        public void Constructor_With_StakeState_Throw_ArgumentNullException()
         {
             var stakeState = new StakeState(new PrivateKey().ToAddress(), 0);
             var contract = new Contract(