Function TestNumDigits

table_test.go:72–96

(t *testing.T)

}

func TestNumDigits(t *testing.T) {
	runTest := func(start string, c byte) {
		buf := bytes.NewBufferString(start)
		var offset int
		if strings.HasPrefix(start, "-") {
			offset--
		}
		for i := 1; i < 1000; i++ {
			buf.WriteByte(c)
			bs := buf.String()
			t.Run(bs, func(t *testing.T) {
				d := newDecimal(t, testCtx, bs)
				n := d.NumDigits()
				e := int64(buf.Len() + offset)
				if n != e {
					t.Fatalf("%s ('%c'): expected %d, got %d", bs, c, e, n)
				}
			})
		}
	}
	runTest("", '9')
	runTest("1", '0')
	runTest("-", '9')
	runTest("-1", '0')
}

func TestDigitsLookupTable(t *testing.T) {
	// Make sure all elements in table make sense.