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-rw-r--r--Lib/test/test_unicode.py5
1 files changed, 4 insertions, 1 deletions
diff --git a/Lib/test/test_unicode.py b/Lib/test/test_unicode.py
index a57d6f4..89e28b5 100644
--- a/Lib/test/test_unicode.py
+++ b/Lib/test/test_unicode.py
@@ -695,7 +695,10 @@ for encoding in ('utf-8',
verify(unicode(u.encode(encoding),encoding) == u)
# UTF-8 must be roundtrip safe for all UCS-2 code points
-u = u''.join(map(unichr, range(0x10000)))
+# This excludes surrogates: in the full range, there would be
+# a surrogate pair (\udbff\udc00), which gets converted back
+# to a non-BMP character (\U0010fc00)
+u = u''.join(map(unichr, range(0,0xd800)+range(0xe000,0x10000)))
for encoding in ('utf-8',):
verify(unicode(u.encode(encoding),encoding) == u)