1 files changed, 17 insertions, 0 deletions
diff --git a/libgo/go/image/gif/reader_test.go b/libgo/go/image/gif/reader_test.go
index 90c81493cba..1267ba06a9d 100644
--- a/libgo/go/image/gif/reader_test.go
+++ b/libgo/go/image/gif/reader_test.go
@@ -10,6 +10,7 @@ import (
 	"image"
 	"image/color"
 	"reflect"
+	"strings"
 	"testing"
 )
 
@@ -292,3 +293,19 @@ func TestLoopCount(t *testing.T) {
 		t.Errorf("loop count mismatch: %d vs %d", img.LoopCount, img1.LoopCount)
 	}
 }
+
+func TestUnexpectedEOF(t *testing.T) {
+	for i := len(testGIF) - 1; i >= 0; i-- {
+		_, err := Decode(bytes.NewReader(testGIF[:i]))
+		if err == errNotEnough {
+			continue
+		}
+		text := ""
+		if err != nil {
+			text = err.Error()
+		}
+		if !strings.HasPrefix(text, "gif:") || !strings.HasSuffix(text, ": unexpected EOF") {
+			t.Errorf("Decode(testGIF[:%d]) = %v, want gif: ...: unexpected EOF", i, err)
+		}
+	}
+}