diff --git a/src/tests/turtle_test/sequence_test.cpp b/src/tests/turtle_test/sequence_test.cpp
index f2c7270..b3b49ab 100644
--- a/src/tests/turtle_test/sequence_test.cpp
+++ b/src/tests/turtle_test/sequence_test.cpp
@@ -44,6 +44,20 @@ BOOST_AUTO_TEST_CASE( registering_to_a_sequence_and_calling_in_order_is_valid )
     e.expect().once().with( 2 ).in( s );
     BOOST_CHECK_NO_THROW( e( 1 ) );
     BOOST_CHECK_NO_THROW( e( 2 ) );
+    BOOST_CHECK( e.verify() );
+}
+
+BOOST_AUTO_TEST_CASE( registering_to_a_sequence_and_multiply_calling_in_order_is_valid )
+{
+    mock::sequence s;
+    mock::function< void( int ) > e;
+    e.expect().exactly( 2 ).with( 1 ).in( s );
+    e.expect().exactly( 2 ).with( 2 ).in( s );
+    BOOST_CHECK_NO_THROW( e( 1 ) );
+    BOOST_CHECK_NO_THROW( e( 1 ) );
+    BOOST_CHECK_NO_THROW( e( 2 ) );
+    BOOST_CHECK_NO_THROW( e( 2 ) );
+    BOOST_CHECK( e.verify() );
 }
 
 BOOST_AUTO_TEST_CASE( registering_to_a_sequence_enforces_call_order_verification_between_two_different_expectations )
@@ -66,6 +80,8 @@ BOOST_AUTO_TEST_CASE( destroying_a_sequence_removes_order_call_enforcement )
     }
     BOOST_CHECK_NO_THROW( e2() );
     BOOST_CHECK_NO_THROW( e1() );
+    BOOST_CHECK( e1.verify() );
+    BOOST_CHECK( e2.verify() );
 }
 
 BOOST_AUTO_TEST_CASE( resetting_an_expectation_removes_it_from_order_call_enforcement )
@@ -76,6 +92,8 @@ BOOST_AUTO_TEST_CASE( resetting_an_expectation_removes_it_from_order_call_enforc
     e2.expect().once().in( s );
     e1.reset();
     BOOST_CHECK_NO_THROW( e2() );
+    BOOST_CHECK( e1.verify() );
+    BOOST_CHECK( e2.verify() );
 }
 
 BOOST_AUTO_TEST_CASE( an_expectation_can_be_used_in_several_sequences )
@@ -84,6 +102,7 @@ BOOST_AUTO_TEST_CASE( an_expectation_can_be_used_in_several_sequences )
     mock::function< void() > e;
     e.expect().once().in( s1 ).in( s2 );
     BOOST_CHECK_NO_THROW( e() );
+    BOOST_CHECK( e.verify() );
 }
 
 BOOST_AUTO_TEST_CASE( a_result_specification_is_set_after_a_sequence )
@@ -92,4 +111,5 @@ BOOST_AUTO_TEST_CASE( a_result_specification_is_set_after_a_sequence )
     mock::function< int() > e;
     e.expect().once().in( s ).returns( 3 );
     BOOST_CHECK_EQUAL( 3, e() );
+    BOOST_CHECK( e.verify() );
 }
diff --git a/src/tests/turtle_test/silent_error.hpp b/src/tests/turtle_test/silent_error.hpp
index 497d711..14642a4 100644
--- a/src/tests/turtle_test/silent_error.hpp
+++ b/src/tests/turtle_test/silent_error.hpp
@@ -18,13 +18,6 @@ namespace mock
     template< typename Result >
     struct silent_error
     {
-        static std::string to_string( int i )
-        {
-            std::stringstream s;
-            s << i;
-            return s.str();
-        }
-
         static Result abort()
         {
             throw std::runtime_error( "abort" );