diff --git a/lib/evmone/instructions.cpp b/lib/evmone/instructions.cpp
index dc11f728b6..d27c507b21 100644
--- a/lib/evmone/instructions.cpp
+++ b/lib/evmone/instructions.cpp
@@ -697,7 +697,10 @@ void op_log(execution_state& state, instr_argument arg) noexcept
 
     const auto cost = int64_t(s) * 8;
     if ((state.gas_left -= cost) < 0)
+    {
         state.exit(EVMC_OUT_OF_GAS);
+        return;
+    }
 
     std::array<evmc_bytes32, 4> topics;
     for (auto i = 0; i < arg.p.number; ++i)
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index ab45a30cca..0a6a0d587c 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -11,9 +11,10 @@ add_subdirectory(bench)
 add_subdirectory(internal_benchmarks)
 add_subdirectory(unittests)
 
+set(targets evm-test evmone-bench evmone-bench-internal evmone-unittests testutils)
+
 set_target_properties(
-    evm-test evmone-bench evmone-bench-internal evmone-unittests testutils
-    PROPERTIES
+    ${targets} PROPERTIES
     ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}
     LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}
     RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_BINDIR}
diff --git a/test/unittests/bytecode_test.cpp b/test/unittests/bytecode_test.cpp
index 74f1cf7780..47e2aa6e30 100644
--- a/test/unittests/bytecode_test.cpp
+++ b/test/unittests/bytecode_test.cpp
@@ -49,6 +49,12 @@ TEST(bytecode, repeat)
     EXPECT_EQ(0 * OP_STOP, "");
 }
 
+TEST(bytecode, to_name)
+{
+    EXPECT_EQ(to_name(OP_SAR), "SAR");
+    EXPECT_EQ(to_name(OP_SAR, EVMC_HOMESTEAD), "UNDEFINED_INSTRUCTION:1d");
+}
+
 TEST(bytecode, decode)
 {
     const auto code = push(0x01e240) + OP_DUP1 + OP_GAS + "cc" + OP_REVERT;
diff --git a/test/unittests/evm_test.cpp b/test/unittests/evm_test.cpp
index e1218ed86f..5478d550fe 100644
--- a/test/unittests/evm_test.cpp
+++ b/test/unittests/evm_test.cpp
@@ -735,11 +735,17 @@ TEST_F(evm, log_data_cost)
         auto num_topics = op - OP_LOG0;
         auto code = push(0) + (4 * OP_DUP1) + push(1) + push(0) + op;
         auto cost = 407 + num_topics * 375;
+        EXPECT_EQ(recorded_logs.size(), 0);
         execute(cost, code);
         EXPECT_EQ(result.status_code, EVMC_SUCCESS);
+        EXPECT_EQ(recorded_logs.size(), 1);
+        recorded_logs.clear();
 
+        EXPECT_EQ(recorded_logs.size(), 0);
         execute(cost - 1, code);
         EXPECT_EQ(result.status_code, EVMC_OUT_OF_GAS);
+        EXPECT_EQ(recorded_logs.size(), 0) << to_name(op);
+        recorded_logs.clear();
     }
 }
 
diff --git a/test/utils/bytecode.hpp b/test/utils/bytecode.hpp
index 316aed66c8..2b613774c1 100644
--- a/test/utils/bytecode.hpp
+++ b/test/utils/bytecode.hpp
@@ -4,6 +4,7 @@
 #pragma once
 
 #include <test/utils/utils.hpp>
+#include <algorithm>
 
 struct bytecode;
 
@@ -180,6 +181,19 @@ inline bytecode sload(bytecode index)
     return index + OP_SLOAD;
 }
 
+inline std::string hex(evmc_opcode opcode) noexcept
+{
+    return hex(static_cast<uint8_t>(opcode));
+}
+
+inline std::string to_name(evmc_opcode opcode, evmc_revision rev = EVMC_MAX_REVISION) noexcept
+{
+    const auto names = evmc_get_instruction_names_table(rev);
+    if (const auto name = names[opcode]; name)
+        return name;
+
+    return "UNDEFINED_INSTRUCTION:" + hex(opcode);
+}
 
 inline std::string decode(bytes_view bytecode, evmc_revision rev)
 {
@@ -206,7 +220,7 @@ inline std::string decode(bytes_view bytecode, evmc_revision rev)
             }
         }
         else
-            s += " + \"" + to_hex({&opcode, 1}) + '"';
+            s += " + \"" + hex(opcode) + '"';
     }
 
     return s;
diff --git a/test/utils/host_mock.hpp b/test/utils/host_mock.hpp
index 4bcdcd1ded..ae661646d9 100644
--- a/test/utils/host_mock.hpp
+++ b/test/utils/host_mock.hpp
@@ -90,7 +90,7 @@ class MockedHost : public evmc::Host
     std::vector<log_record> recorded_logs;
     std::vector<selfdestuct_record> recorded_selfdestructs;
 
-private:
+protected:
     std::vector<bytes> m_recorded_calls_inputs;
 
     void record_account_access(const evmc_address& addr)
diff --git a/test/utils/utils.hpp b/test/utils/utils.hpp
index 41cffb12ca..325b9000ef 100644
--- a/test/utils/utils.hpp
+++ b/test/utils/utils.hpp
@@ -18,11 +18,6 @@ inline std::string hex(uint8_t b) noexcept
     return {hex_chars[b >> 4], hex_chars[b & 0xf]};
 }
 
-inline std::string hex(evmc_opcode opcode) noexcept
-{
-    return hex(static_cast<uint8_t>(opcode));
-}
-
 bytes from_hex(std::string_view hex);
 std::string to_hex(bytes_view bytes);