1 files changed, 47 insertions, 2 deletions
diff --git a/tests/run/ctuple.pyx b/tests/run/ctuple.pyx
index 235265bb1..88cfdddfb 100644
--- a/tests/run/ctuple.pyx
+++ b/tests/run/ctuple.pyx
@@ -1,5 +1,8 @@
+# mode: run
+
 import cython
 
+
 def simple_convert(*o):
     """
     >>> simple_convert(1, 2)
@@ -8,15 +11,35 @@ def simple_convert(*o):
     >>> simple_convert(1)
     Traceback (most recent call last):
     ...
-    TypeError: Expected a tuple of size 2, got tuple
+    TypeError: Expected a sequence of size 2, got size 1
     >>> simple_convert(1, 2, 3)
     Traceback (most recent call last):
     ...
-    TypeError: Expected a tuple of size 2, got tuple
+    TypeError: Expected a sequence of size 2, got size 3
     """
     cdef (int, double) xy = o
     return xy
 
+
+def convert_from_list(*o):
+    """
+    >>> convert_from_list(1, 2)
+    (1, 2.0)
+
+    >>> convert_from_list(1)
+    Traceback (most recent call last):
+    ...
+    TypeError: Expected a sequence of size 2, got size 1
+    >>> convert_from_list(1, 2, 3)
+    Traceback (most recent call last):
+    ...
+    TypeError: Expected a sequence of size 2, got size 3
+    """
+    cdef object values = list(o)
+    cdef (int, double) xy = values
+    return xy
+
+
 def indexing((int, double) xy):
     """
     >>> indexing((1, 2))
@@ -142,6 +165,17 @@ cpdef (int, double) cpdef_ctuple_return_type(int x, double y):
     return x, y
 
 
+def cast_to_ctuple(*o):
+    """
+    >>> cast_to_ctuple(1, 2.)
+    (1, 2.0)
+    """
+    cdef int x
+    cdef double y
+    x, y = <(int, double)>o
+    return x, y
+
+
 @cython.infer_types(True)
 def test_type_inference():
     """
@@ -214,6 +248,17 @@ def test_mul((int, int) ab, int c):
     """
     return ab * c
 
+def test_mul_to_ctuple((int, int) ab, int c):
+    """
+    >>> test_mul_to_ctuple((1, 2), 2)
+    (1, 2, 1, 2)
+    >>> test_mul_to_ctuple((1, 2), 3)
+    Traceback (most recent call last):
+    TypeError: Expected a sequence of size 4, got size 6
+    """
+    result: tuple[cython.int, cython.int, cython.int, cython.int] = ab * c
+    return result
+
 def test_unop((int, int) ab):
     """
     >>> test_unop((1, 2))