diff --git a/tests/src/block_template_tests.cpp b/tests/src/block_template_tests.cpp
index a817632..dcf987e 100644
--- a/tests/src/block_template_tests.cpp
+++ b/tests/src/block_template_tests.cpp
@@ -92,6 +92,7 @@ TEST(block_template, update)
 
 	tpl.update(data, mempool, &wallet);
 
+	ASSERT_EQ(b->m_sidechainId, H("272a7eea0b804cf24427528977d221850d0ee06c26e935219a75f180cfbfc7f3"));
 	ASSERT_EQ(b->m_transactions.size(), 203);
 
 	for (size_t i = 1; i < b->m_transactions.size(); ++i) {
diff --git a/tests/src/pool_block_tests.cpp b/tests/src/pool_block_tests.cpp
index 4bc66ed..345c304 100644
--- a/tests/src/pool_block_tests.cpp
+++ b/tests/src/pool_block_tests.cpp
@@ -160,7 +160,7 @@ TEST(pool_block, verify)
 			ASSERT_EQ(b.deserialize(p, n, sidechain, nullptr, false), 0);
 			p += n;
 
-			sidechain.add_block(b);
+			ASSERT_TRUE(sidechain.add_block(b));
 			ASSERT_TRUE(sidechain.find_block(b.m_sidechainId) != nullptr);
 		}
 
diff --git a/tests/src/util_tests.cpp b/tests/src/util_tests.cpp
index 9e572b3..a95e9b3 100644
--- a/tests/src/util_tests.cpp
+++ b/tests/src/util_tests.cpp
@@ -87,6 +87,10 @@ TEST(util, bsr)
 	for (uint64_t i = 0, x = 1; i <= 63; ++i, x <<= 1) {
 		ASSERT_EQ(bsr(x), i);
 		ASSERT_EQ(bsr_reference(x), i);
+
+		const uint64_t y = x | (x - 1);
+		ASSERT_EQ(bsr(y), i);
+		ASSERT_EQ(bsr_reference(y), i);
 	}
 }