1 files changed, 59 insertions, 0 deletions
diff --git a/tests/basics/generator_close.py b/tests/basics/generator_close.py
new file mode 100644
index 0000000000..aa563f2a8a
--- /dev/null
+++ b/tests/basics/generator_close.py
@@ -0,0 +1,59 @@
+def gen1():
+    yield 1
+    yield 2
+
+# Test that it's possible to close just created gen
+g = gen1()
+print(g.close())
+try:
+    next(g)
+except StopIteration:
+    print("StopIteration")
+
+# Test that it's possible to close gen in progress
+g = gen1()
+print(next(g))
+print(g.close())
+try:
+    next(g)
+    print("No StopIteration")
+except StopIteration:
+    print("StopIteration")
+
+# Test that it's possible to close finished gen
+g = gen1()
+print(list(g))
+print(g.close())
+try:
+    next(g)
+    print("No StopIteration")
+except StopIteration:
+    print("StopIteration")
+
+
+# Throwing StopIteration in response to close() is ok
+def gen2():
+    try:
+        yield 1
+        yield 2
+    except:
+        raise StopIteration
+
+g = gen2()
+next(g)
+print(g.close())
+
+# Any other exception is propagated to the .close() caller
+def gen3():
+    try:
+        yield 1
+        yield 2
+    except:
+        raise ValueError
+
+g = gen3()
+next(g)
+try:
+    print(g.close())
+except ValueError:
+    print("ValueError")