Move NameGenerator to util (#1428)

Fixes for #876

tests/common/util/NameGenerator.hpp

@@ -0,0 +1,28 @@
+//------------------------------------------------------------------------------
+/*
+    This file is part of clio: https://github.com/XRPLF/clio
+    Copyright (c) 2024, the clio developers.
+
+    Permission to use, copy, modify, and distribute this software for any
+    purpose with or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL,  DIRECT,  INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#pragma once
+
+#include <string>
+
+namespace tests::util {
+
+static auto const NameGenerator = [](auto const& info) { return info.param.testName; };
+
+}  // namespace tests::util

tests/unit/rpc/JsonBoolTests.cpp

@@ -17,6 +17,7 @@
 */
 //==============================================================================
 #include "rpc/common/JsonBool.hpp"
+#include "util/NameGenerator.hpp"
 
 #include <boost/json/parse.hpp>
 #include <boost/json/value_to.hpp>
@@ -37,16 +38,6 @@ struct JsonBoolTestsCaseBundle {
 
 class JsonBoolTests : public TestWithParam<JsonBoolTestsCaseBundle> {
 public:
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<JsonBoolTestsCaseBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-
     static auto
     generateTestValuesForParametersTest()
     {
@@ -72,7 +63,7 @@ INSTANTIATE_TEST_CASE_P(
     JsonBoolCheckGroup,
     JsonBoolTests,
     ValuesIn(JsonBoolTests::generateTestValuesForParametersTest()),
-    JsonBoolTests::NameGenerator{}
+    tests::util::NameGenerator
 );
 
 TEST_P(JsonBoolTests, Parse)

tests/unit/rpc/handlers/AMMInfoTests.cpp

@@ -23,6 +23,7 @@
 #include "rpc/common/Types.hpp"
 #include "rpc/handlers/AMMInfo.hpp"
 #include "util/Fixtures.hpp"
+#include "util/NameGenerator.hpp"
 #include "util/TestObject.hpp"
 
 #include <boost/json/parse.hpp>
@@ -66,15 +67,7 @@ struct AMMInfoParamTestCaseBundle {
     std::string expectedErrorMessage;
 };
 
-struct AMMInfoParameterTest : public RPCAMMInfoHandlerTest, public WithParamInterface<AMMInfoParamTestCaseBundle> {
-    struct NameGenerator {
-        std::string
-        operator()(auto const& info) const
-        {
-            return static_cast<AMMInfoParamTestCaseBundle>(info.param).testName;
-        }
-    };
-};
+struct AMMInfoParameterTest : public RPCAMMInfoHandlerTest, public WithParamInterface<AMMInfoParamTestCaseBundle> {};
 
 static auto
 generateTestValuesForParametersTest()
@@ -106,7 +99,7 @@ INSTANTIATE_TEST_CASE_P(
     RPCAMMInfoGroup1,
     AMMInfoParameterTest,
     ValuesIn(generateTestValuesForParametersTest()),
-    AMMInfoParameterTest::NameGenerator{}
+    tests::util::NameGenerator
 );
 
 TEST_P(AMMInfoParameterTest, InvalidParams)

tests/unit/rpc/handlers/AccountInfoTests.cpp

@@ -24,6 +24,7 @@
 #include "rpc/common/Types.hpp"
 #include "rpc/handlers/AccountInfo.hpp"
 #include "util/Fixtures.hpp"
+#include "util/NameGenerator.hpp"
 #include "util/TestObject.hpp"
 
 #include <boost/json/parse.hpp>
@@ -62,17 +63,7 @@ struct AccountInfoParamTestCaseBundle {
 
 // parameterized test cases for parameters check
 struct AccountInfoParameterTest : public RPCAccountInfoHandlerTest,
-                                  public WithParamInterface<AccountInfoParamTestCaseBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<AccountInfoParamTestCaseBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+                                  public WithParamInterface<AccountInfoParamTestCaseBundle> {};
 
 static auto
 generateTestValuesForParametersTest()
@@ -114,7 +105,7 @@ INSTANTIATE_TEST_CASE_P(
     RPCAccountInfoGroup1,
     AccountInfoParameterTest,
     ValuesIn(generateTestValuesForParametersTest()),
-    AccountInfoParameterTest::NameGenerator{}
+    tests::util::NameGenerator
 );
 
 TEST_P(AccountInfoParameterTest, InvalidParams)

tests/unit/rpc/handlers/AccountNFTsTests.cpp

@@ -23,6 +23,7 @@
 #include "rpc/common/Types.hpp"
 #include "rpc/handlers/AccountNFTs.hpp"
 #include "util/Fixtures.hpp"
+#include "util/NameGenerator.hpp"
 #include "util/TestObject.hpp"
 
 #include <boost/json/parse.hpp>
@@ -66,17 +67,7 @@ struct AccountNFTParamTestCaseBundle {
 
 // parameterized test cases for parameters check
 struct AccountNFTParameterTest : public RPCAccountNFTsHandlerTest,
-                                 public WithParamInterface<AccountNFTParamTestCaseBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<AccountNFTParamTestCaseBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+                                 public WithParamInterface<AccountNFTParamTestCaseBundle> {};
 
 static auto
 generateTestValuesForParametersTest()
@@ -155,7 +146,7 @@ INSTANTIATE_TEST_CASE_P(
     RPCAccountNFTsGroup1,
     AccountNFTParameterTest,
     ValuesIn(generateTestValuesForParametersTest()),
-    AccountNFTParameterTest::NameGenerator{}
+    tests::util::NameGenerator
 );
 
 TEST_P(AccountNFTParameterTest, InvalidParams)

tests/unit/rpc/handlers/AccountObjectsTests.cpp

@@ -23,6 +23,7 @@
 #include "rpc/common/Types.hpp"
 #include "rpc/handlers/AccountObjects.hpp"
 #include "util/Fixtures.hpp"
+#include "util/NameGenerator.hpp"
 #include "util/TestObject.hpp"
 
 #include <boost/json/parse.hpp>
@@ -71,17 +72,7 @@ struct AccountObjectsParamTestCaseBundle {
 
 // parameterized test cases for parameters check
 struct AccountObjectsParameterTest : public RPCAccountObjectsHandlerTest,
-                                     public WithParamInterface<AccountObjectsParamTestCaseBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<AccountObjectsParamTestCaseBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+                                     public WithParamInterface<AccountObjectsParamTestCaseBundle> {};
 
 static auto
 generateTestValuesForParametersTest()
@@ -180,7 +171,7 @@ INSTANTIATE_TEST_CASE_P(
     RPCAccountObjectsGroup1,
     AccountObjectsParameterTest,
     ValuesIn(generateTestValuesForParametersTest()),
-    AccountObjectsParameterTest::NameGenerator{}
+    tests::util::NameGenerator
 );
 
 TEST_P(AccountObjectsParameterTest, InvalidParams)

tests/unit/rpc/handlers/AccountOffersTests.cpp

@@ -23,6 +23,7 @@
 #include "rpc/common/Types.hpp"
 #include "rpc/handlers/AccountOffers.hpp"
 #include "util/Fixtures.hpp"
+#include "util/NameGenerator.hpp"
 #include "util/TestObject.hpp"
 
 #include <boost/json/parse.hpp>
@@ -62,17 +63,7 @@ struct AccountOfferParamTestCaseBundle {
 
 // parameterized test cases for parameters check
 struct AccountOfferParameterTest : public RPCAccountOffersHandlerTest,
-                                   public WithParamInterface<AccountOfferParamTestCaseBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<AccountOfferParamTestCaseBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+                                   public WithParamInterface<AccountOfferParamTestCaseBundle> {};
 
 static auto
 generateTestValuesForParametersTest()
@@ -151,7 +142,7 @@ INSTANTIATE_TEST_CASE_P(
     RPCAccountOffersGroup1,
     AccountOfferParameterTest,
     ValuesIn(generateTestValuesForParametersTest()),
-    AccountOfferParameterTest::NameGenerator{}
+    tests::util::NameGenerator
 );
 
 TEST_P(AccountOfferParameterTest, InvalidParams)

tests/unit/rpc/handlers/AccountTxTests.cpp

@@ -23,6 +23,7 @@
 #include "rpc/common/Types.hpp"
 #include "rpc/handlers/AccountTx.hpp"
 #include "util/Fixtures.hpp"
+#include "util/NameGenerator.hpp"
 #include "util/TestObject.hpp"
 
 #include <boost/json/parse.hpp>
@@ -63,15 +64,6 @@ struct AccountTxParamTestCaseBundle {
 // parameterized test cases for parameters check
 struct AccountTxParameterTest : public RPCAccountTxHandlerTest,
                                 public WithParamInterface<AccountTxParamTestCaseBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            return info.param.testName;
-        }
-    };
-
     static auto
     generateTestValuesForParametersTest()
     {
@@ -401,7 +393,7 @@ INSTANTIATE_TEST_CASE_P(
     RPCAccountTxGroup1,
     AccountTxParameterTest,
     ValuesIn(AccountTxParameterTest::generateTestValuesForParametersTest()),
-    AccountTxParameterTest::NameGenerator{}
+    tests::util::NameGenerator
 );
 
 TEST_P(AccountTxParameterTest, CheckParams)
@@ -1564,17 +1556,7 @@ struct AccountTxTransactionBundle {
 
 // parameterized test cases for parameters check
 struct AccountTxTransactionTypeTest : public RPCAccountTxHandlerTest,
-                                      public WithParamInterface<AccountTxTransactionBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<AccountTxTransactionBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+                                      public WithParamInterface<AccountTxTransactionBundle> {};
 
 static auto
 generateTransactionTypeTestValues()
@@ -2049,7 +2031,7 @@ INSTANTIATE_TEST_CASE_P(
     RPCAccountTxTransactionTypeTest,
     AccountTxTransactionTypeTest,
     ValuesIn(generateTransactionTypeTestValues()),
-    AccountTxTransactionTypeTest::NameGenerator{}
+    tests::util::NameGenerator
 );
 
 TEST_P(AccountTxTransactionTypeTest, SpecificTransactionType)

tests/unit/rpc/handlers/BookChangesTests.cpp

@@ -23,6 +23,7 @@
 #include "rpc/common/Types.hpp"
 #include "rpc/handlers/BookChanges.hpp"
 #include "util/Fixtures.hpp"
+#include "util/NameGenerator.hpp"
 #include "util/TestObject.hpp"
 
 #include <boost/json/parse.hpp>
@@ -60,17 +61,7 @@ struct BookChangesParamTestCaseBundle {
 
 // parameterized test cases for parameters check
 struct BookChangesParameterTest : public RPCBookChangesHandlerTest,
-                                  public WithParamInterface<BookChangesParamTestCaseBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<BookChangesParamTestCaseBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+                                  public WithParamInterface<BookChangesParamTestCaseBundle> {};
 
 static auto
 generateTestValuesForParametersTest()
@@ -92,7 +83,7 @@ INSTANTIATE_TEST_CASE_P(
     RPCBookChangesGroup1,
     BookChangesParameterTest,
     ValuesIn(generateTestValuesForParametersTest()),
-    BookChangesParameterTest::NameGenerator{}
+    tests::util::NameGenerator
 );
 
 TEST_P(BookChangesParameterTest, InvalidParams)

tests/unit/rpc/handlers/BookOffersTests.cpp

@@ -24,6 +24,7 @@
 #include "rpc/common/Types.hpp"
 #include "rpc/handlers/BookOffers.hpp"
 #include "util/Fixtures.hpp"
+#include "util/NameGenerator.hpp"
 #include "util/TestObject.hpp"
 
 #include <boost/asio/spawn.hpp>
@@ -75,17 +76,7 @@ struct ParameterTestBundle {
     std::string expectedErrorMessage;
 };
 
-struct RPCBookOffersParameterTest : public RPCBookOffersHandlerTest, public WithParamInterface<ParameterTestBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<ParameterTestBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+struct RPCBookOffersParameterTest : public RPCBookOffersHandlerTest, public WithParamInterface<ParameterTestBundle> {};
 
 TEST_P(RPCBookOffersParameterTest, CheckError)
 {
@@ -497,7 +488,7 @@ INSTANTIATE_TEST_SUITE_P(
     RPCBookOffersHandler,
     RPCBookOffersParameterTest,
     testing::ValuesIn(generateParameterBookOffersTestBundles()),
-    RPCBookOffersParameterTest::NameGenerator()
+    tests::util::NameGenerator
 );
 
 struct BookOffersNormalTestBundle {
@@ -511,17 +502,7 @@ struct BookOffersNormalTestBundle {
 };
 
 struct RPCBookOffersNormalPathTest : public RPCBookOffersHandlerTest,
-                                     public WithParamInterface<BookOffersNormalTestBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<BookOffersNormalTestBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+                                     public WithParamInterface<BookOffersNormalTestBundle> {};
 
 TEST_P(RPCBookOffersNormalPathTest, CheckOutput)
 {
@@ -1172,7 +1153,7 @@ INSTANTIATE_TEST_SUITE_P(
     RPCBookOffersHandler,
     RPCBookOffersNormalPathTest,
     testing::ValuesIn(generateNormalPathBookOffersTestBundles()),
-    RPCBookOffersNormalPathTest::NameGenerator()
+    tests::util::NameGenerator
 );
 
 // ledger not exist

tests/unit/rpc/handlers/DepositAuthorizedTests.cpp

@@ -23,6 +23,7 @@
 #include "rpc/common/Types.hpp"
 #include "rpc/handlers/DepositAuthorized.hpp"
 #include "util/Fixtures.hpp"
+#include "util/NameGenerator.hpp"
 #include "util/TestObject.hpp"
 
 #include <boost/json/parse.hpp>
@@ -61,17 +62,7 @@ struct DepositAuthorizedTestCaseBundle {
 
 // parameterized test cases for parameters check
 struct DepositAuthorizedParameterTest : public RPCDepositAuthorizedTest,
-                                        public WithParamInterface<DepositAuthorizedTestCaseBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<DepositAuthorizedTestCaseBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+                                        public WithParamInterface<DepositAuthorizedTestCaseBundle> {};
 
 static auto
 generateTestValuesForParametersTest()
@@ -172,7 +163,7 @@ INSTANTIATE_TEST_CASE_P(
     RPCDepositAuthorizedGroup,
     DepositAuthorizedParameterTest,
     ValuesIn(generateTestValuesForParametersTest()),
-    DepositAuthorizedParameterTest::NameGenerator{}
+    tests::util::NameGenerator
 );
 
 TEST_P(DepositAuthorizedParameterTest, InvalidParams)

tests/unit/rpc/handlers/GatewayBalancesTests.cpp

@@ -23,6 +23,7 @@
 #include "rpc/common/Types.hpp"
 #include "rpc/handlers/GatewayBalances.hpp"
 #include "util/Fixtures.hpp"
+#include "util/NameGenerator.hpp"
 #include "util/TestObject.hpp"
 
 #include <boost/json/parse.hpp>
@@ -66,17 +67,7 @@ struct ParameterTestBundle {
     std::string expectedErrorMessage;
 };
 
-struct ParameterTest : public RPCGatewayBalancesHandlerTest, public WithParamInterface<ParameterTestBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<ParameterTestBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+struct ParameterTest : public RPCGatewayBalancesHandlerTest, public WithParamInterface<ParameterTestBundle> {};
 
 TEST_P(ParameterTest, CheckError)
 {
@@ -209,7 +200,7 @@ INSTANTIATE_TEST_SUITE_P(
     RPCGatewayBalancesHandler,
     ParameterTest,
     testing::ValuesIn(generateParameterTestBundles()),
-    ParameterTest::NameGenerator()
+    tests::util::NameGenerator
 );
 
 TEST_F(RPCGatewayBalancesHandlerTest, LedgerNotFoundViaStringIndex)
@@ -387,17 +378,7 @@ struct NormalTestBundle {
     std::string hotwallet;
 };
 
-struct NormalPathTest : public RPCGatewayBalancesHandlerTest, public WithParamInterface<NormalTestBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<NormalTestBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+struct NormalPathTest : public RPCGatewayBalancesHandlerTest, public WithParamInterface<NormalTestBundle> {};
 
 TEST_P(NormalPathTest, CheckOutput)
 {
@@ -661,5 +642,5 @@ INSTANTIATE_TEST_SUITE_P(
     RPCGatewayBalancesHandler,
     NormalPathTest,
     testing::ValuesIn(generateNormalPathTestBundles()),
-    NormalPathTest::NameGenerator()
+    tests::util::NameGenerator
 );

tests/unit/rpc/handlers/GetAggregatePriceTests.cpp

@@ -23,6 +23,7 @@
 #include "rpc/handlers/GetAggregatePrice.hpp"
 #include "util/Fixtures.hpp"
 #include "util/MockBackend.hpp"
+#include "util/NameGenerator.hpp"
 #include "util/TestObject.hpp"
 
 #include <boost/json/object.hpp>
@@ -104,17 +105,7 @@ struct GetAggregatePriceParamTestCaseBundle {
 
 // parameterized test cases for parameters check
 struct GetAggregatePriceParameterTest : public RPCGetAggregatePriceHandlerTest,
-                                        public WithParamInterface<GetAggregatePriceParamTestCaseBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<GetAggregatePriceParamTestCaseBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+                                        public WithParamInterface<GetAggregatePriceParamTestCaseBundle> {};
 
 static auto
 generateTestValuesForParametersTest()
@@ -315,7 +306,7 @@ INSTANTIATE_TEST_CASE_P(
     RPCGetAggregatePriceGroup1,
     GetAggregatePriceParameterTest,
     ValuesIn(generateTestValuesForParametersTest()),
-    GetAggregatePriceParameterTest::NameGenerator{}
+    tests::util::NameGenerator
 );
 
 TEST_P(GetAggregatePriceParameterTest, InvalidParams)

tests/unit/rpc/handlers/LedgerDataTests.cpp

@@ -23,6 +23,7 @@
 #include "rpc/common/Types.hpp"
 #include "rpc/handlers/LedgerData.hpp"
 #include "util/Fixtures.hpp"
+#include "util/NameGenerator.hpp"
 #include "util/TestObject.hpp"
 
 #include <boost/json/parse.hpp>
@@ -62,17 +63,7 @@ struct LedgerDataParamTestCaseBundle {
 
 // parameterized test cases for parameters check
 struct LedgerDataParameterTest : public RPCLedgerDataHandlerTest,
-                                 public WithParamInterface<LedgerDataParamTestCaseBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<LedgerDataParamTestCaseBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+                                 public WithParamInterface<LedgerDataParamTestCaseBundle> {};
 
 static auto
 generateTestValuesForParametersTest()
@@ -113,7 +104,7 @@ INSTANTIATE_TEST_CASE_P(
     RPCLedgerDataGroup1,
     LedgerDataParameterTest,
     ValuesIn(generateTestValuesForParametersTest()),
-    LedgerDataParameterTest::NameGenerator{}
+    tests::util::NameGenerator
 );
 
 TEST_P(LedgerDataParameterTest, InvalidParams)

tests/unit/rpc/handlers/LedgerEntryTests.cpp

@@ -23,6 +23,7 @@
 #include "rpc/common/Types.hpp"
 #include "rpc/handlers/LedgerEntry.hpp"
 #include "util/Fixtures.hpp"
+#include "util/NameGenerator.hpp"
 #include "util/TestObject.hpp"
 
 #include <boost/json/parse.hpp>
@@ -71,17 +72,7 @@ struct ParamTestCaseBundle {
 };
 
 // parameterized test cases for parameters check
-struct LedgerEntryParameterTest : public RPCLedgerEntryTest, public WithParamInterface<ParamTestCaseBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<ParamTestCaseBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+struct LedgerEntryParameterTest : public RPCLedgerEntryTest, public WithParamInterface<ParamTestCaseBundle> {};
 
 // TODO: because we extract the error generation from the handler to framework
 // the error messages need one round fine tuning
@@ -1770,7 +1761,7 @@ INSTANTIATE_TEST_CASE_P(
     RPCLedgerEntryGroup1,
     LedgerEntryParameterTest,
     ValuesIn(generateTestValuesForParametersTest()),
-    LedgerEntryParameterTest::NameGenerator{}
+    tests::util::NameGenerator
 );
 
 TEST_P(LedgerEntryParameterTest, InvalidParams)
@@ -1881,17 +1872,7 @@ struct NormalPathTestBundle {
     ripple::STObject mockedEntity;
 };
 
-struct RPCLedgerEntryNormalPathTest : public RPCLedgerEntryTest, public WithParamInterface<NormalPathTestBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<NormalPathTestBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+struct RPCLedgerEntryNormalPathTest : public RPCLedgerEntryTest, public WithParamInterface<NormalPathTestBundle> {};
 
 static auto
 generateTestValuesForNormalPathTest()
@@ -2391,7 +2372,7 @@ INSTANTIATE_TEST_CASE_P(
     RPCLedgerEntryGroup2,
     RPCLedgerEntryNormalPathTest,
     ValuesIn(generateTestValuesForNormalPathTest()),
-    RPCLedgerEntryNormalPathTest::NameGenerator{}
+    tests::util::NameGenerator
 );
 
 // Test for normal path

tests/unit/rpc/handlers/LedgerTests.cpp

@@ -25,6 +25,7 @@
 #include "rpc/common/Types.hpp"
 #include "rpc/handlers/Ledger.hpp"
 #include "util/Fixtures.hpp"
+#include "util/NameGenerator.hpp"
 #include "util/TestObject.hpp"
 
 #include <boost/json/parse.hpp>
@@ -68,17 +69,7 @@ struct LedgerParamTestCaseBundle {
 };
 
 // parameterized test cases for parameters check
-struct LedgerParameterTest : public RPCLedgerHandlerTest, public WithParamInterface<LedgerParamTestCaseBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<LedgerParamTestCaseBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+struct LedgerParameterTest : public RPCLedgerHandlerTest, public WithParamInterface<LedgerParamTestCaseBundle> {};
 
 static auto
 generateTestValuesForParametersTest()
@@ -175,7 +166,7 @@ INSTANTIATE_TEST_CASE_P(
     RPCLedgerGroup1,
     LedgerParameterTest,
     ValuesIn(generateTestValuesForParametersTest()),
-    LedgerParameterTest::NameGenerator{}
+    tests::util::NameGenerator
 );
 
 TEST_P(LedgerParameterTest, InvalidParams)

tests/unit/rpc/handlers/NFTHistoryTests.cpp

@@ -23,6 +23,7 @@
 #include "rpc/common/Types.hpp"
 #include "rpc/handlers/NFTHistory.hpp"
 #include "util/Fixtures.hpp"
+#include "util/NameGenerator.hpp"
 #include "util/TestObject.hpp"
 
 #include <boost/json/parse.hpp>
@@ -59,17 +60,7 @@ struct NFTHistoryParamTestCaseBundle {
 
 // parameterized test cases for parameters check
 struct NFTHistoryParameterTest : public RPCNFTHistoryHandlerTest,
-                                 public WithParamInterface<NFTHistoryParamTestCaseBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<NFTHistoryParamTestCaseBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+                                 public WithParamInterface<NFTHistoryParamTestCaseBundle> {};
 
 static auto
 generateTestValuesForParametersTest()
@@ -232,7 +223,7 @@ INSTANTIATE_TEST_CASE_P(
     RPCNFTHistoryGroup1,
     NFTHistoryParameterTest,
     ValuesIn(generateTestValuesForParametersTest()),
-    NFTHistoryParameterTest::NameGenerator{}
+    tests::util::NameGenerator
 );
 
 TEST_P(NFTHistoryParameterTest, InvalidParams)

tests/unit/rpc/handlers/NoRippleCheckTests.cpp

@@ -22,6 +22,7 @@
 #include "rpc/common/Types.hpp"
 #include "rpc/handlers/NoRippleCheck.hpp"
 #include "util/Fixtures.hpp"
+#include "util/NameGenerator.hpp"
 #include "util/TestObject.hpp"
 
 #include <boost/json/parse.hpp>
@@ -60,17 +61,7 @@ struct NoRippleParamTestCaseBundle {
 
 // parameterized test cases for parameters check
 struct NoRippleCheckParameterTest : public RPCNoRippleCheckTest,
-                                    public WithParamInterface<NoRippleParamTestCaseBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<NoRippleParamTestCaseBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+                                    public WithParamInterface<NoRippleParamTestCaseBundle> {};
 
 static auto
 generateTestValuesForParametersTest()
@@ -166,7 +157,7 @@ INSTANTIATE_TEST_CASE_P(
     RPCNoRippleCheckGroup1,
     NoRippleCheckParameterTest,
     ValuesIn(generateTestValuesForParametersTest()),
-    NoRippleCheckParameterTest::NameGenerator{}
+    tests::util::NameGenerator
 );
 
 TEST_P(NoRippleCheckParameterTest, InvalidParams)

tests/unit/rpc/handlers/SubscribeTests.cpp

@@ -26,6 +26,7 @@
 #include "rpc/handlers/Subscribe.hpp"
 #include "util/Fixtures.hpp"
 #include "util/MockWsBase.hpp"
+#include "util/NameGenerator.hpp"
 #include "util/TestObject.hpp"
 #include "web/interface/ConnectionBase.hpp"
 
@@ -91,17 +92,7 @@ struct SubscribeParamTestCaseBundle {
 
 // parameterized test cases for parameters check
 struct SubscribeParameterTest : public RPCSubscribeHandlerTest,
-                                public WithParamInterface<SubscribeParamTestCaseBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<SubscribeParamTestCaseBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+                                public WithParamInterface<SubscribeParamTestCaseBundle> {};
 
 static auto
 generateTestValuesForParametersTest()
@@ -577,7 +568,7 @@ INSTANTIATE_TEST_CASE_P(
     RPCSubscribe,
     SubscribeParameterTest,
     ValuesIn(generateTestValuesForParametersTest()),
-    SubscribeParameterTest::NameGenerator{}
+    tests::util::NameGenerator
 );
 
 TEST_P(SubscribeParameterTest, InvalidParams)

tests/unit/rpc/handlers/UnsubscribeTests.cpp

@@ -25,6 +25,7 @@
 #include "util/Fixtures.hpp"
 #include "util/MockSubscriptionManager.hpp"
 #include "util/MockWsBase.hpp"
+#include "util/NameGenerator.hpp"
 #include "web/interface/ConnectionBase.hpp"
 
 #include <boost/json/parse.hpp>
@@ -73,17 +74,8 @@ struct UnsubscribeParamTestCaseBundle {
 };
 
 // parameterized test cases for parameters check
-struct UnsubscribeParameterTest : public RPCUnsubscribeTest, public WithParamInterface<UnsubscribeParamTestCaseBundle> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<UnsubscribeParamTestCaseBundle>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+struct UnsubscribeParameterTest : public RPCUnsubscribeTest,
+                                  public WithParamInterface<UnsubscribeParamTestCaseBundle> {};
 
 static auto
 generateTestValuesForParametersTest()
@@ -519,7 +511,7 @@ INSTANTIATE_TEST_CASE_P(
     RPCUnsubscribe,
     UnsubscribeParameterTest,
     ValuesIn(generateTestValuesForParametersTest()),
-    UnsubscribeParameterTest::NameGenerator{}
+    tests::util::NameGenerator
 );
 
 TEST_P(UnsubscribeParameterTest, InvalidParams)

tests/unit/util/prometheus/HttpTests.cpp

@@ -17,6 +17,7 @@
 */
 //==============================================================================
 #include "util/MockPrometheus.hpp"
+#include "util/NameGenerator.hpp"
 #include "util/config/Config.hpp"
 #include "util/prometheus/Http.hpp"
 #include "util/prometheus/Label.hpp"
@@ -46,17 +47,7 @@ struct PrometheusCheckRequestTestsParams {
     bool expected;
 };
 
-struct PrometheusCheckRequestTests : public ::testing::TestWithParam<PrometheusCheckRequestTestsParams> {
-    struct NameGenerator {
-        template <class ParamType>
-        std::string
-        operator()(testing::TestParamInfo<ParamType> const& info) const
-        {
-            auto bundle = static_cast<PrometheusCheckRequestTestsParams>(info.param);
-            return bundle.testName;
-        }
-    };
-};
+struct PrometheusCheckRequestTests : public ::testing::TestWithParam<PrometheusCheckRequestTestsParams> {};
 
 TEST_P(PrometheusCheckRequestTests, isPrometheusRequest)
 {
@@ -113,7 +104,7 @@ INSTANTIATE_TEST_CASE_P(
             .expected = false
         },
     }),
-    PrometheusCheckRequestTests::NameGenerator()
+    tests::util::NameGenerator
 );
 
 struct PrometheusHandleRequestTests : util::prometheus::WithPrometheus {