func TestRandomBinaryDecimal(t *testing.T) {
defer leaktest.AfterTest(t)()
if *generateBinaryCmd == "" {
t.Skip("disabled")
}
fields := strings.Fields(*generateBinaryCmd)
if len(fields) < 1 {
t.Fatal("expected generate-binary arguments")
}
name, args := fields[0], fields[1:]
var tests []binaryTest
randutil.SeedForTests()
for {
var b bytes.Buffer
for n := rand.Intn(50); n >= 0; n-- {
fmt.Fprint(&b, rand.Intn(10))
}
v := b.String()
{
z := strings.Repeat("0", rand.Intn(10))
pos := rand.Intn(len(v) + 1)
v = v[:pos] + z + v[pos:]
}
if rand.Intn(2) == 0 {
pos := rand.Intn(len(v) + 1)
v = v[:pos] + "." + v[pos:]
}
cmdargs := append(args, `"`+v+`"`)
out, err := exec.Command(name, cmdargs...).CombinedOutput()
if err != nil {
t.Log(string(out))
t.Fatal(err)
}
if err := json.Unmarshal(out, &tests); err != nil {
t.Fatal(err)
}
if len(tests) != 1 {
t.Fatal("expected 1 test")
}
test := tests[0]
buf := writeBuffer{bytecount: metric.NewCounter(metric.Metadata{})}
dec := new(parser.DDecimal)
if _, ok := dec.SetString(test.In); !ok {
t.Fatalf("could not set %q on decimal", test.In)
}
buf.writeBinaryDatum(dec, time.UTC)
if buf.err != nil {
t.Fatal(buf.err)
}
if got := buf.wrapped.Bytes(); !bytes.Equal(got, test.Expect) {
t.Errorf("%q:\n\t%v found,\n\t%v expected", test.In, got, test.Expect)
} else if datum, err := decodeOidDatum(oid.T_numeric, formatBinary, got[4:]); err != nil {
t.Errorf("%q: unable to decode %v: %s", test.In, got[4:], err)
} else if dec.Compare(datum) != 0 {
t.Errorf("%q: expected %s, got %s", test.In, dec, datum)
}
}
}
