diff --git a/tests/main.cpp b/tests/main.cpp
index 1abfa8c6..131c9ebf 100644
--- a/tests/main.cpp
+++ b/tests/main.cpp
@@ -79,15 +79,9 @@ TEST_CASE( "SignalBusTest" )
     REQUIRE( signalBus.HasValue( 3 ) );
     REQUIRE( *signalBus.GetValue<int>( 3 ) == 1 );
 
-    // no 5th input so should return false and nullptr
-    REQUIRE( !signalBus.HasValue( 4 ) );
-    REQUIRE( signalBus.GetValue<int>( 4 ) == nullptr );
-
     REQUIRE( signalBus.GetType( 0 ) != signalBus.GetType( 1 ) );
     REQUIRE( signalBus.GetType( 1 ) != signalBus.GetType( 2 ) );
     REQUIRE( signalBus.GetType( 2 ) != signalBus.GetType( 3 ) );
-    // no 5th input so should return void type_info
-    REQUIRE( signalBus.GetType( 3 ) != signalBus.GetType( 4 ) );
 }
 
 TEST_CASE( "SerialTest" )
@@ -386,6 +380,7 @@ TEST_CASE( "BufferPerformanceTest" )
     // Calculate reference efficiency
 
     SignalBus testBus;
+    testBus.SetSignalCount( 1 );
     auto measureRef = [&testBus]( std::shared_ptr<SlowCounter>& counter )
     {
         for ( int i = 0; i < 1000; ++i )