1// Copyright 2021 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package strconv_test
6
7import (
8	"math"
9	. "strconv"
10	"testing"
11)
12
13func TestMulByLog2Log10(t *testing.T) {
14	for x := -1600; x <= +1600; x++ {
15		iMath := MulByLog2Log10(x)
16		fMath := int(math.Floor(float64(x) * math.Ln2 / math.Ln10))
17		if iMath != fMath {
18			t.Errorf("mulByLog2Log10(%d) failed: %d vs %d\n", x, iMath, fMath)
19		}
20	}
21}
22
23func TestMulByLog10Log2(t *testing.T) {
24	for x := -500; x <= +500; x++ {
25		iMath := MulByLog10Log2(x)
26		fMath := int(math.Floor(float64(x) * math.Ln10 / math.Ln2))
27		if iMath != fMath {
28			t.Errorf("mulByLog10Log2(%d) failed: %d vs %d\n", x, iMath, fMath)
29		}
30	}
31}
32