tests: Add missing tests for builtins, and many other things.

2 files changed, 7 insertions, 0 deletions

diff --git a/tests/io/stringio1.py b/tests/io/stringio1.py
index dae0187f8..22f561f29 100644
--- a/tests/io/stringio1.py
+++ b/tests/io/stringio1.py
@@ -1,6 +1,7 @@
 import _io as io
 
 a = io.StringIO()
+print('io.StringIO' in repr(a))
 print(a.getvalue())
 print(a.read())
 
diff --git a/tests/io/stringio_with.py b/tests/io/stringio_with.py
new file mode 100644
index 000000000..becb564df
--- /dev/null
+++ b/tests/io/stringio_with.py
@@ -0,0 +1,6 @@
+import _io as io
+
+# test __enter__/__exit__
+with io.StringIO() as b:
+    b.write("foo")
+    print(b.getvalue())