4 files changed, 3 insertions, 1 deletions
diff --git a/tests/core_tests/chaingen.cpp b/tests/core_tests/chaingen.cpp
index 614585349..8dde1f475 100644
--- a/tests/core_tests/chaingen.cpp
+++ b/tests/core_tests/chaingen.cpp
@@ -546,6 +546,7 @@ void block_tracker::global_indices(const cryptonote::transaction *tx, std::vecto
 void block_tracker::get_fake_outs(size_t num_outs, uint64_t amount, uint64_t global_index, uint64_t cur_height, std::vector<get_outs_entry> &outs){
   auto & vct = m_outs[amount];
   const size_t n_outs = vct.size();
+  CHECK_AND_ASSERT_THROW_MES(n_outs > 0, "n_outs is 0");
 
   std::set<size_t> used;
   std::vector<size_t> choices;
diff --git a/tests/core_tests/wallet_tools.cpp b/tests/core_tests/wallet_tools.cpp
index d9cee34c1..21a9455c0 100644
--- a/tests/core_tests/wallet_tools.cpp
+++ b/tests/core_tests/wallet_tools.cpp
@@ -163,6 +163,7 @@ bool wallet_tools::fill_tx_sources(tools::wallet2 * wallet, std::vector<cryptono
 
 void wallet_tools::gen_tx_src(size_t mixin, uint64_t cur_height, const tools::wallet2::transfer_details & td, cryptonote::tx_source_entry & src, block_tracker &bt)
 {
+  CHECK_AND_ASSERT_THROW_MES(mixin != 0, "mixin is zero");
   src.amount = td.amount();
   src.rct = td.is_rct();
 
diff --git a/tests/unit_tests/test_protocol_pack.cpp b/tests/unit_tests/test_protocol_pack.cpp
index 7329c0d23..0ae2e9c68 100644
--- a/tests/unit_tests/test_protocol_pack.cpp
+++ b/tests/unit_tests/test_protocol_pack.cpp
@@ -48,6 +48,7 @@ TEST(protocol_pack, protocol_pack_command)
 
     cryptonote::NOTIFY_RESPONSE_CHAIN_ENTRY::request r2;
     res = epee::serialization::load_t_from_binary(r2, buff);
+    ASSERT_TRUE(res);
     ASSERT_TRUE(r.m_block_ids.size() == i);
     ASSERT_TRUE(r.start_height == 1);
     ASSERT_TRUE(r.total_height == 3);
diff --git a/tests/unit_tests/varint.cpp b/tests/unit_tests/varint.cpp
index ca0900682..72691d722 100644
--- a/tests/unit_tests/varint.cpp
+++ b/tests/unit_tests/varint.cpp
@@ -56,7 +56,6 @@ TEST(varint, equal)
     ASSERT_TRUE (bytes > 0 && bytes <= sizeof(buf));
 
     uint64_t idx2;
-    bufptr = buf;
     std::string s(buf, bytes);
     int read = tools::read_varint(s.begin(), s.end(), idx2);
     ASSERT_EQ (read, bytes);