diff --git a/tests/basics/array1.py b/tests/basics/array1.py
index e5ea6683c..c45b883c9 100644
--- a/tests/basics/array1.py
+++ b/tests/basics/array1.py
@@ -21,6 +21,10 @@ print(array.array('i'))
 print(bool(array.array('i')))
 print(bool(array.array('i', [1])))
 
+# containment, with incorrect type
+print('12' in array.array('B', b'12'))
+print([] in array.array('B', b'12'))
+
 # bad typecode
 try:
     array.array('X')
diff --git a/tests/basics/builtin_range.py b/tests/basics/builtin_range.py
index 9110cf12c..59fc0344a 100644
--- a/tests/basics/builtin_range.py
+++ b/tests/basics/builtin_range.py
@@ -50,3 +50,9 @@ try:
     range(1)[0] = 1
 except TypeError:
     print("TypeError")
+
+# bad attr (can't store)
+try:
+    range(4).start = 0
+except AttributeError:
+    print('AttributeError')
diff --git a/tests/basics/dict1.py b/tests/basics/dict1.py
index c70ca588a..21d5af272 100644
--- a/tests/basics/dict1.py
+++ b/tests/basics/dict1.py
@@ -16,3 +16,27 @@ while x < 100:
     d[x] = x
     x += 1
 print(d[50])
+
+# equality operator on dicts of different size
+print({} == {1:1})
+
+# equality operator on dicts of same size but with different keys
+print({1:1} == {2:1})
+
+# value not found
+try:
+    {}[0]
+except KeyError:
+    print('KeyError')
+
+# unsupported unary op
+try:
+    +{}
+except TypeError:
+    print('TypeError')
+
+# unsupported binary op
+try:
+    {} + {}
+except TypeError:
+    print('TypeError')
diff --git a/tests/basics/dict_views.py b/tests/basics/dict_views.py
index fbf63fa0a..7ebcc1f56 100644
--- a/tests/basics/dict_views.py
+++ b/tests/basics/dict_views.py
@@ -3,4 +3,19 @@ for m in d.items, d.values, d.keys:
     print(m())
     print(list(m()))
 
+# print a view with more than one item
+print({1:1, 2:1}.values())
+
+# unsupported binary op on a dict values view
+try:
+    {1:1}.values() + 1
+except TypeError:
+    print('TypeError')
+
+# unsupported binary op on a dict keys view
+try:
+    {1:1}.keys() + 1
+except TypeError:
+    print('TypeError')
+
 # set operations still to come
diff --git a/tests/basics/int_constfolding.py b/tests/basics/int_constfolding.py
index c01f964da..aa38fa6b8 100644
--- a/tests/basics/int_constfolding.py
+++ b/tests/basics/int_constfolding.py
@@ -38,3 +38,8 @@ print(-123 // 7, -123 % 7)
 print(123 // -7, 123 % -7)
 print(-123 // -7, -123 % -7)
 
+# zero big-num on rhs
+print(1 + ((1 << 65) - (1 << 65)))
+
+# negative big-num on rhs
+print(1 + (-(1 << 65)))
diff --git a/tests/basics/slice_attrs.py b/tests/basics/slice_attrs.py
index 76368a78c..67456ff8e 100644
--- a/tests/basics/slice_attrs.py
+++ b/tests/basics/slice_attrs.py
@@ -14,3 +14,12 @@ except:
 
 
 A()[1:2:3]
+
+# test storing to attr (shouldn't be allowed)
+class B:
+    def __getitem__(self, idx):
+        try:
+            idx.start = 0
+        except AttributeError:
+            print('AttributeError')
+B()[:]
diff --git a/tests/misc/non_compliant.py b/tests/misc/non_compliant.py
index e0b07c3ad..677438b83 100644
--- a/tests/misc/non_compliant.py
+++ b/tests/misc/non_compliant.py
@@ -9,6 +9,12 @@ try:
 except SyntaxError:
     print('SyntaxError')
 
+# store to exception attribute is not allowed
+try:
+    ValueError().x = 0
+except AttributeError:
+    print('AttributeError')
+
 # array deletion not implemented
 try:
     a = array.array('b', (1, 2, 3))
@@ -23,6 +29,12 @@ try:
 except NotImplementedError:
     print('NotImplementedError')
 
+# containment, looking for integer not implemented
+try:
+    print(1 in array.array('B', b'12'))
+except NotImplementedError:
+    print('NotImplementedError')
+
 # should raise type error
 try:
     print(set('12') >= '1')
@@ -65,6 +77,12 @@ try:
 except NotImplementedError:
     print('NotImplementedError')
 
+# str subscr with step!=1 not implemented
+try:
+    print('abc'[1:2:3])
+except NotImplementedError:
+    print('NotImplementedError')
+
 # bytes(...) with keywords not implemented
 try:
     bytes('abc', encoding='utf8')
diff --git a/tests/misc/non_compliant.py.exp b/tests/misc/non_compliant.py.exp
index 3095441ad..737650e9e 100644
--- a/tests/misc/non_compliant.py.exp
+++ b/tests/misc/non_compliant.py.exp
@@ -1,6 +1,8 @@
 SyntaxError
+AttributeError
 TypeError
 NotImplementedError
+NotImplementedError
 True
 True
 TypeError, ValueError
@@ -13,5 +15,6 @@ NotImplementedError
 NotImplementedError
 NotImplementedError
 NotImplementedError
+NotImplementedError
 b'\x01\x02'
 b'\x01\x00'
diff --git a/tests/unicode/unicode.py b/tests/unicode/unicode.py
index b31f064e9..5f29bc1c9 100644
--- a/tests/unicode/unicode.py
+++ b/tests/unicode/unicode.py
@@ -18,8 +18,9 @@ enc = s.encode()
 print(enc, enc.decode() == s)
 
 # printing of unicode chars using repr
-# TODO we don't do this correctly
-#print(repr(s))
+# NOTE: for some characters (eg \u10ff) we differ to CPython
+print(repr('a\uffff'))
+print(repr('a\U0001ffff'))
 
 # test invalid escape code
 try: