1 files changed, 56 insertions, 8 deletions
diff --git a/tests/basics/deque2.py b/tests/basics/deque2.py
index 80fcd6678..743c04078 100644
--- a/tests/basics/deque2.py
+++ b/tests/basics/deque2.py
@@ -6,18 +6,50 @@ except ImportError:
     print("SKIP")
     raise SystemExit
 
+# Initial sequence is supported
+d = deque([1, 2, 3], 10)
+
+# iteration over sequence
+for x in d:
+    print(x)
+
+# Iterables larger than maxlen have the beginnings removed, also tests
+# iteration through conversion to list
+d = deque([1, 2, 3, 4, 5], 3)
+print(list(d))
+
+# Empty iterables are also supported
+deque([], 10)
+
+# Extending deques with iterables
+d.extend([6, 7])
+print(list(d))
+
+# Accessing queue elements via index
+d = deque((0, 1, 2, 3), 5)
+print(d[0], d[1], d[-1])
+
+# Writing queue elements via index
+d[3] = 5
+print(d[3])
+
+# Accessing indices out of bounds raises IndexError
+try:
+    d[4]
+except IndexError:
+    print("IndexError")
 
-# Initial sequence is not supported
 try:
-    deque([1, 2, 3], 10)
-except ValueError:
-    print("ValueError")
+    d[4] = 0
+except IndexError:
+    print("IndexError")
 
-# Not even empty list, only empty tuple
+# Removing elements with del is not supported, fall back on mp_obj_subscr() error message
 try:
-    deque([], 10)
-except ValueError:
-    print("ValueError")
+    del d[0]
+except TypeError:
+    print("TypeError")
+
 
 # Only fixed-size deques are supported, so length arg is mandatory
 try:
@@ -32,6 +64,11 @@ try:
 except IndexError:
     print("IndexError")
 
+try:
+    d.pop()
+except IndexError:
+    print("IndexError")
+
 print(d.append(1))
 print(d.popleft())
 
@@ -46,6 +83,11 @@ try:
 except IndexError as e:
     print(repr(e))
 
+try:
+    d.pop()
+except IndexError as e:
+    print(repr(e))
+
 d.append(5)
 d.append(6)
 print(len(d))
@@ -53,6 +95,12 @@ try:
     d.append(7)
 except IndexError as e:
     print(repr(e))
+
+try:
+    d.appendleft(8)
+except IndexError as e:
+    print(repr(e))
+
 print(len(d))
 
 print(d.popleft(), d.popleft())