1 files changed, 26 insertions, 0 deletions
diff --git a/tests/tests_itertools.py b/tests/tests_itertools.py
new file mode 100644
index 0000000..bfb6eb2
--- /dev/null
+++ b/tests/tests_itertools.py
@@ -0,0 +1,26 @@
+"""
+Tests for `tqdm.contrib.itertools`.
+"""
+import itertools as it
+
+from tqdm.contrib.itertools import product
+
+from .tests_tqdm import StringIO, closing
+
+
+class NoLenIter(object):
+    def __init__(self, iterable):
+        self._it = iterable
+
+    def __iter__(self):
+        for i in self._it:
+            yield i
+
+
+def test_product():
+    """Test contrib.itertools.product"""
+    with closing(StringIO()) as our_file:
+        a = range(9)
+        assert list(product(a, a[::-1], file=our_file)) == list(it.product(a, a[::-1]))
+
+        assert list(product(a, NoLenIter(a), file=our_file)) == list(it.product(a, NoLenIter(a)))