Beispiel #1
0
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)
				}
			}
		}
	}
}
Beispiel #2
0
func TestDecAbsZ(t *testing.T) {
	var zero inf.Dec
	for _, a := range decSumZZ {
		var z inf.Dec
		z.Abs(a.z)
		var e inf.Dec
		e.Set(a.z)
		if e.Cmp(&zero) < 0 {
			e.Sub(&zero, &e)
		}
		if z.Cmp(&e) != 0 {
			t.Errorf("got z = %v; want %v", z, e)
		}
	}
}
Beispiel #3
0
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)
		}
	}
}