func TestDecGobEncoding(t *testing.T) {
var medium bytes.Buffer
enc := gob.NewEncoder(&medium)
dec := gob.NewDecoder(&medium)
for i, test := range decGobEncodingTests {
for j := 0; j < 2; j++ {
for k := inf.Scale(-5); k <= 5; k++ {
medium.Reset() // empty buffer for each test case (in case of failures)
stest := test
if j != 0 {
// negative numbers
stest = "-" + test
}
var tx inf.Dec
tx.SetString(stest)
tx.SetScale(k) // test with positive, negative, and zero scale
if err := enc.Encode(&tx); err != nil {
t.Errorf("#%d%c: encoding failed: %s", i, 'a'+j, err)
}
var rx inf.Dec
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)
}
}
}
}
}
func TestDecSetString(t *testing.T) {
tmp := new(inf.Dec)
for i, test := range decStringTests {
if test.scale < 0 {
// SetString only supports scale >= 0
continue
}
// initialize to a non-zero value so that issues with parsing
// 0 are detected
tmp.Set(inf.NewDec(1234567890, 123))
n1, ok1 := new(inf.Dec).SetString(test.in)
n2, ok2 := tmp.SetString(test.in)
expected := inf.NewDec(test.val, test.scale)
if ok1 != test.ok || ok2 != test.ok {
t.Errorf("#%d (input '%s') ok incorrect (should be %t)", i, test.in, test.ok)
continue
}
if !ok1 {
if n1 != nil {
t.Errorf("#%d (input '%s') n1 != nil", i, test.in)
}
continue
}
if !ok2 {
if n2 != nil {
t.Errorf("#%d (input '%s') n2 != nil", i, test.in)
}
continue
}
if n1.Cmp(expected) != 0 {
t.Errorf("#%d (input '%s') got: %s want: %d", i, test.in, n1, test.val)
}
if n2.Cmp(expected) != 0 {
t.Errorf("#%d (input '%s') got: %s want: %d", i, test.in, n2, test.val)
}
}
}
func ExampleDec_SetString() {
d := new(inf.Dec)
d.SetString("012345.67890") // decimal; leading 0 ignored; trailing 0 kept
fmt.Println(d)
// Output: 12345.67890
}