diff --git a/test/containers/sequences/array/iterators.pass.cpp b/test/containers/sequences/array/iterators.pass.cpp
index 3014fd54..98997d8c 100644
--- a/test/containers/sequences/array/iterators.pass.cpp
+++ b/test/containers/sequences/array/iterators.pass.cpp
@@ -72,10 +72,23 @@ int main()
         C::const_iterator cii{};
         assert ( ii1 == ii2 );
         assert ( ii1 == ii4 );
-        assert ( ii1 == cii );
 
-        assert ( !(ii1 != ii2 ));
-        assert ( !(ii1 != cii ));
+        assert (!(ii1 != ii2 ));
+
+        assert ( (ii1 == cii ));
+        assert ( (cii == ii1 ));
+        assert (!(ii1 != cii ));
+        assert (!(cii != ii1 ));
+        assert (!(ii1 <  cii ));
+        assert (!(cii <  ii1 ));
+        assert ( (ii1 <= cii ));
+        assert ( (cii <= ii1 ));
+        assert (!(ii1 >  cii ));
+        assert (!(cii >  ii1 ));
+        assert ( (ii1 >= cii ));
+        assert ( (cii >= ii1 ));
+        assert (cii - ii1 == 0);
+        assert (ii1 - cii == 0);
 
         C c;
         assert ( c.begin()   == std::begin(c));
diff --git a/test/containers/sequences/deque/iterators.pass.cpp b/test/containers/sequences/deque/iterators.pass.cpp
index 9140e02b..8ec491fa 100644
--- a/test/containers/sequences/deque/iterators.pass.cpp
+++ b/test/containers/sequences/deque/iterators.pass.cpp
@@ -51,11 +51,24 @@ int main()
         std::deque<int>::const_iterator cii{};
         assert ( ii1 == ii2 );
         assert ( ii1 == ii4 );
-        assert ( ii1 == cii );
 
-        assert ( !(ii1 != ii2 ));
-        assert ( !(ii1 != cii ));
+        assert (!(ii1 != ii2 ));
 
+        assert ( (ii1 == cii ));
+        assert ( (cii == ii1 ));
+        assert (!(ii1 != cii ));
+        assert (!(cii != ii1 ));
+        assert (!(ii1 <  cii ));
+        assert (!(cii <  ii1 ));
+        assert ( (ii1 <= cii ));
+        assert ( (cii <= ii1 ));
+        assert (!(ii1 >  cii ));
+        assert (!(cii >  ii1 ));
+        assert ( (ii1 >= cii ));
+        assert ( (cii >= ii1 ));
+        assert (cii - ii1 == 0);
+        assert (ii1 - cii == 0);
+        
 //         std::deque<int> c;
 //         assert ( ii1 != c.cbegin());
 //         assert ( cii != c.begin());
diff --git a/test/containers/sequences/forwardlist/forwardlist.iter/iterators.pass.cpp b/test/containers/sequences/forwardlist/forwardlist.iter/iterators.pass.cpp
index 02e17d72..6f3ac548 100644
--- a/test/containers/sequences/forwardlist/forwardlist.iter/iterators.pass.cpp
+++ b/test/containers/sequences/forwardlist/forwardlist.iter/iterators.pass.cpp
@@ -127,10 +127,13 @@ int main()
         std::forward_list<int>::const_iterator cii{};
         assert ( ii1 == ii2 );
         assert ( ii1 == ii4 );
-        assert ( ii1 == cii );
+ 
+        assert (!(ii1 != ii2 ));
 
-        assert ( !(ii1 != ii2 ));
-        assert ( !(ii1 != cii ));
+        assert ( (ii1 == cii ));
+        assert ( (cii == ii1 ));
+        assert (!(ii1 != cii ));
+        assert (!(cii != ii1 ));
 
 //         std::forward_list<int> c;
 //         assert ( ii1 != c.cbegin());
diff --git a/test/containers/sequences/list/iterators.pass.cpp b/test/containers/sequences/list/iterators.pass.cpp
index a843334e..a33ee3ec 100644
--- a/test/containers/sequences/list/iterators.pass.cpp
+++ b/test/containers/sequences/list/iterators.pass.cpp
@@ -143,10 +143,13 @@ int main()
         std::list<int>::const_iterator cii{};
         assert ( ii1 == ii2 );
         assert ( ii1 == ii4 );
-        assert ( ii1 == cii );
 
-        assert ( !(ii1 != ii2 ));
-        assert ( !(ii1 != cii ));
+        assert (!(ii1 != ii2 ));
+
+        assert ( (ii1 == cii ));
+        assert ( (cii == ii1 ));
+        assert (!(ii1 != cii ));
+        assert (!(cii != ii1 ));
 
         assert ( ii1 != c.cbegin());
         assert ( cii != c.begin());
diff --git a/test/containers/sequences/vector.bool/iterators.pass.cpp b/test/containers/sequences/vector.bool/iterators.pass.cpp
index b63f6a60..c54fa4a8 100644
--- a/test/containers/sequences/vector.bool/iterators.pass.cpp
+++ b/test/containers/sequences/vector.bool/iterators.pass.cpp
@@ -101,9 +101,23 @@ int main()
         std::vector<bool>::const_iterator cii{};
         assert ( ii1 == ii2 );
         assert ( ii1 == ii4 );
-        assert ( ii1 == cii );
-        assert ( !(ii1 != ii2 ));
-        assert ( !(ii1 != cii ));
+
+        assert (!(ii1 != ii2 ));
+
+        assert ( (ii1 == cii ));
+        assert ( (cii == ii1 ));
+        assert (!(ii1 != cii ));
+        assert (!(cii != ii1 ));
+        assert (!(ii1 <  cii ));
+        assert (!(cii <  ii1 ));
+        assert ( (ii1 <= cii ));
+        assert ( (cii <= ii1 ));
+        assert (!(ii1 >  cii ));
+        assert (!(cii >  ii1 ));
+        assert ( (ii1 >= cii ));
+        assert ( (cii >= ii1 ));
+        assert (cii - ii1 == 0);
+        assert (ii1 - cii == 0);
     }
 #endif
 }
diff --git a/test/containers/sequences/vector/iterators.pass.cpp b/test/containers/sequences/vector/iterators.pass.cpp
index 82de6654..75a08287 100644
--- a/test/containers/sequences/vector/iterators.pass.cpp
+++ b/test/containers/sequences/vector/iterators.pass.cpp
@@ -143,9 +143,23 @@ int main()
         C::const_iterator cii{};
         assert ( ii1 == ii2 );
         assert ( ii1 == ii4 );
-        assert ( ii1 == cii );
-        assert ( !(ii1 != ii2 ));
-        assert ( !(ii1 != cii ));
+
+        assert (!(ii1 != ii2 ));
+
+        assert ( (ii1 == cii ));
+        assert ( (cii == ii1 ));
+        assert (!(ii1 != cii ));
+        assert (!(cii != ii1 ));
+        assert (!(ii1 <  cii ));
+        assert (!(cii <  ii1 ));
+        assert ( (ii1 <= cii ));
+        assert ( (cii <= ii1 ));
+        assert (!(ii1 >  cii ));
+        assert (!(cii >  ii1 ));
+        assert ( (ii1 >= cii ));
+        assert ( (cii >= ii1 ));
+        assert (cii - ii1 == 0);
+        assert (ii1 - cii == 0);
     }
 #endif
 }