1 files changed, 48 insertions, 7 deletions
diff --git a/libcxx/test/std/utilities/template.bitset/bitset.operators/stream_in.pass.cpp b/libcxx/test/std/utilities/template.bitset/bitset.operators/stream_in.pass.cpp
index 9abe19c7c87..1cb92ea3458 100644
--- a/libcxx/test/std/utilities/template.bitset/bitset.operators/stream_in.pass.cpp
+++ b/libcxx/test/std/utilities/template.bitset/bitset.operators/stream_in.pass.cpp
@@ -9,19 +9,60 @@
 // test:
 
 // template <class charT, class traits, size_t N>
-// basic_ostream<charT, traits>&
-// operator<<(basic_ostream<charT, traits>& os, const bitset<N>& x);
+// basic_istream<charT, traits>&
+// operator>>(basic_istream<charT, traits>& is, bitset<N>& x);
 
 #include <bitset>
 #include <sstream>
 #include <cassert>
+#include "test_macros.h"
 
 int main(int, char**)
 {
-    std::istringstream in("01011010");
-    std::bitset<8> b;
-    in >> b;
-    assert(b.to_ulong() == 0x5A);
+    {
+        std::istringstream in("01011010");
+        std::bitset<8> b;
+        in >> b;
+        assert(b.to_ulong() == 0x5A);
+    }
+#ifndef TEST_HAS_NO_EXCEPTIONS
+    {
+        std::stringbuf sb;
+        std::istream is(&sb);
+        is.exceptions(std::ios::failbit);
 
-  return 0;
+        bool threw = false;
+        try {
+            std::bitset<8> b;
+            is >> b;
+        } catch (std::ios::failure const&) {
+            threw = true;
+        }
+
+        assert(!is.bad());
+        assert(is.fail());
+        assert(is.eof());
+        assert(threw);
+    }
+    {
+        std::stringbuf sb;
+        std::istream is(&sb);
+        is.exceptions(std::ios::eofbit);
+
+        bool threw = false;
+        try {
+            std::bitset<8> b;
+            is >> b;
+        } catch (std::ios::failure const&) {
+            threw = true;
+        }
+
+        assert(!is.bad());
+        assert(is.fail());
+        assert(is.eof());
+        assert(threw);
+    }
+#endif // TEST_HAS_NO_EXCEPTIONS
+
+    return 0;
 }