switch to assertEqual
diff --git a/tensorflow/python/lib/io/file_io_test.py b/tensorflow/python/lib/io/file_io_test.py
index ddb67c1..ceb0ca67 100644
--- a/tensorflow/python/lib/io/file_io_test.py
+++ b/tensorflow/python/lib/io/file_io_test.py
@@ -685,12 +685,12 @@
with open("text.txt", mode="w", encoding="cp932") as f:
f.write("今日はいい天気")
with file_io.FileIO("text.txt", mode="r", encoding="cp932") as f:
- assert f.read() == "今日はいい天気"
+ self.assertEqual(f.read(), "今日はいい天気")
with file_io.FileIO("text.txt", mode="w", encoding="cp932") as f:
f.write("今日はいい天気")
with open("text.txt", mode="r", encoding="cp932") as f:
- assert f.read() == "今日はいい天気"
+ self.assertEqual(f.read(), "今日はいい天気")
if __name__ == "__main__":
