Update to current version of Go library.

[pf3gnuchains/gcc-fork.git] / libgo / go / big / int_test.go

diff --git a/libgo/go/big/int_test.go b/libgo/go/big/int_test.go
index fc981e1..c0cc9ac 100644 (file)
--- a/libgo/go/big/int_test.go
+++ b/libgo/go/big/int_test.go
@@ -8,6 +8,7 @@ import (
        "bytes"
        "encoding/hex"
        "fmt"
+       "gob"
        "testing"
        "testing/quick"
 )
@@ -1053,3 +1054,41 @@ func TestModInverse(t *testing.T) {
                }
        }
 }
+
+
+var gobEncodingTests = []string{
+       "0",
+       "1",
+       "2",
+       "10",
+       "42",
+       "1234567890",
+       "298472983472983471903246121093472394872319615612417471234712061",
+}
+
+func TestGobEncoding(t *testing.T) {
+       var medium bytes.Buffer
+       enc := gob.NewEncoder(&medium)
+       dec := gob.NewDecoder(&medium)
+       for i, test := range gobEncodingTests {
+               for j := 0; j < 2; j++ {
+                       medium.Reset() // empty buffer for each test case (in case of failures)
+                       stest := test
+                       if j == 0 {
+                               stest = "-" + test
+                       }
+                       var tx Int
+                       tx.SetString(stest, 10)
+                       if err := enc.Encode(&tx); err != nil {
+                               t.Errorf("#%d%c: encoding failed: %s", i, 'a'+j, err)
+                       }
+                       var rx Int
+                       if err := dec.Decode(&rx); err != nil {
+                               t.Errorf("#%d%c: decoding failed: %s", i, 'a'+j, err)
+                       }
+                       if rx.Cmp(&tx) != 0 {
+                               t.Errorf("#%d%c: transmission failed: got %s want %s", i, 'a'+j, &rx, &tx)
+                       }
+               }
+       }
+}