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a better encoder test, with a couple of fixes for bugs it uncovered.

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R=rsc
DELTA=84  (65 added, 9 deleted, 10 changed)
OCL=31458
CL=31458
This commit is contained in:
Rob Pike 2009-07-10 13:44:37 -07:00
parent 1880b90aff
commit f0a9840d04
3 changed files with 75 additions and 19 deletions
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56
src/pkg/gob/encoder_test.go
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@ -6,6 +6,7 @@ package gob
import (
"bytes";
"fmt"; // DELETE
"gob";
"os";
"reflect";
@ -34,4 +35,59 @@ func TestBasicEncoder(t *testing.T) {
if enc.state.err != nil {
t.Error("encoder fail:", enc.state.err)
}
// Decode the result by hand to verify;
state := new(DecState);
state.r = b;
// The output should be:
// 1) -7: the type id of ET1
id1 := DecodeInt(state);
if id1 >= 0 {
t.Fatal("expected ET1 negative id; got", id1);
}
// 2) The wireType for ET1
wire1 := new(wireType);
err := Decode(b, wire1);
if err != nil {
t.Fatal("error decoding ET1 type:", err);
}
info := getTypeInfo(reflect.Typeof(ET1{}));
trueWire1 := &wireType{name:"ET1", s: info.typeId.gobType().(*structType)};
if !reflect.DeepEqual(wire1, trueWire1) {
t.Fatalf("invalid wireType for ET1: expected %+v; got %+v\n", *trueWire1, *wire1);
}
// 3) -8: the type id of ET2
id2 := DecodeInt(state);
if id2 >= 0 {
t.Fatal("expected ET2 negative id; got", id2);
}
// 4) The wireType for ET2
wire2 := new(wireType);
err = Decode(b, wire2);
if err != nil {
t.Fatal("error decoding ET2 type:", err);
}
info = getTypeInfo(reflect.Typeof(ET2{}));
trueWire2 := &wireType{name:"ET2", s: info.typeId.gobType().(*structType)};
if !reflect.DeepEqual(wire2, trueWire2) {
t.Fatalf("invalid wireType for ET2: expected %+v; got %+v\n", *trueWire2, *wire2);
}
// 5) The type id for the et1 value
newId1 := DecodeInt(state);
if newId1 != -id1 {
t.Fatal("expected Et1 id", -id1, "got", newId1);
}
// 6) The value of et1
newEt1 := new(ET1);
err = Decode(b, newEt1);
if err != nil {
t.Fatal("error decoding ET1 value:", err);
}
if !reflect.DeepEqual(et1, newEt1) {
t.Fatalf("invalid data for et1: expected %+v; got %+v\n", *et1, *newEt1);
}
// 7) EOF
if b.Len() != 0 {
t.Error("not at eof;", b.Len(), "bytes left")
}
}