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integer_test.go
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package utils
import (
"math"
"math/big"
"testing"
"github.com/fufuok/utils/assert"
)
func TestMinInt(t *testing.T) {
assert.Equal(t, -1, MinInt(1, -1))
assert.Equal(t, 0, MinInt(0, 1))
}
func TestMaxInt(t *testing.T) {
assert.Equal(t, 1, MaxInt(1, -1))
assert.Equal(t, 1, MaxInt(0, 1))
}
func TestGetInt(t *testing.T) {
assert.Equal(t, 1, GetInt("1"))
assert.Equal(t, 1, GetInt("1", 2))
assert.Equal(t, 1, GetInt(nil, 1))
assert.Equal(t, 1, GetInt(0, 1))
assert.Equal(t, 1, GetInt(-1, 1))
assert.Equal(t, 0, GetInt(-1, 0))
assert.Equal(t, -1, GetInt(-1))
}
func TestSearchInt(t *testing.T) {
val := []int{1, 2, 3}
assert.Equal(t, 0, SearchInt(val, 1))
assert.Equal(t, 1, SearchInt(val, 2))
assert.Equal(t, 2, SearchInt(val, 3))
assert.Equal(t, -1, SearchInt(val, 4))
}
func TestInInts(t *testing.T) {
val := []int{1, 2, 3}
assert.Equal(t, true, InInts(val, 1))
assert.Equal(t, false, InInts(val, 4))
}
// Ref: dustin/go-humanize
func TestComma(t *testing.T) {
for _, v := range []struct {
title string
actual string
expected string
}{
{"0", Comma(0), "0"},
{"10", Comma(10), "10"},
{"100", Comma(100), "100"},
{"1,000", Comma(1000), "1,000"},
{"10,000", Comma(10000), "10,000"},
{"100,000", Comma(100000), "100,000"},
{"10,000,000", Comma(10000000), "10,000,000"},
{"10,100,000", Comma(10100000), "10,100,000"},
{"10,010,000", Comma(10010000), "10,010,000"},
{"10,001,000", Comma(10001000), "10,001,000"},
{"123,456,789", Comma(123456789), "123,456,789"},
{"maxint", Comma(9.223372e+18), "9,223,372,000,000,000,000"},
{"math.maxint", Comma(math.MaxInt64), "9,223,372,036,854,775,807"},
{"math.minint", Comma(math.MinInt64), "-9,223,372,036,854,775,808"},
{"minint", Comma(-9.223372e+18), "-9,223,372,000,000,000,000"},
{"-123,456,789", Comma(-123456789), "-123,456,789"},
{"-10,100,000", Comma(-10100000), "-10,100,000"},
{"-10,010,000", Comma(-10010000), "-10,010,000"},
{"-10,001,000", Comma(-10001000), "-10,001,000"},
{"-10,000,000", Comma(-10000000), "-10,000,000"},
{"-100,000", Comma(-100000), "-100,000"},
{"-10,000", Comma(-10000), "-10,000"},
{"-1,000", Comma(-1000), "-1,000"},
{"-100", Comma(-100), "-100"},
{"-10", Comma(-10), "-10"},
{"123,456,789", Commai(123456789), "123,456,789"},
} {
assert.Equal(t, v.expected, v.actual, v.title)
}
}
// Ref: dustin/go-humanize
func TestBigComma(t *testing.T) {
for _, v := range []struct {
title string
actual string
expected string
}{
{"0", BigComma(big.NewInt(0)), "0"},
{"10", BigComma(big.NewInt(10)), "10"},
{"100", BigComma(big.NewInt(100)), "100"},
{"1,000", BigComma(big.NewInt(1000)), "1,000"},
{"10,000", BigComma(big.NewInt(10000)), "10,000"},
{"100,000", BigComma(big.NewInt(100000)), "100,000"},
{"10,000,000", BigComma(big.NewInt(10000000)), "10,000,000"},
{"10,100,000", BigComma(big.NewInt(10100000)), "10,100,000"},
{"10,010,000", BigComma(big.NewInt(10010000)), "10,010,000"},
{"10,001,000", BigComma(big.NewInt(10001000)), "10,001,000"},
{"123,456,789", BigComma(big.NewInt(123456789)), "123,456,789"},
{"maxint", BigComma(big.NewInt(9.223372e+18)), "9,223,372,000,000,000,000"},
{"minint", BigComma(big.NewInt(-9.223372e+18)), "-9,223,372,000,000,000,000"},
{"-123,456,789", BigComma(big.NewInt(-123456789)), "-123,456,789"},
{"-10,100,000", BigComma(big.NewInt(-10100000)), "-10,100,000"},
{"-10,010,000", BigComma(big.NewInt(-10010000)), "-10,010,000"},
{"-10,001,000", BigComma(big.NewInt(-10001000)), "-10,001,000"},
{"-10,000,000", BigComma(big.NewInt(-10000000)), "-10,000,000"},
{"-100,000", BigComma(big.NewInt(-100000)), "-100,000"},
{"-10,000", BigComma(big.NewInt(-10000)), "-10,000"},
{"-1,000", BigComma(big.NewInt(-1000)), "-1,000"},
{"-100", BigComma(big.NewInt(-100)), "-100"},
{"-10", BigComma(big.NewInt(-10)), "-10"},
} {
assert.Equal(t, v.expected, v.actual, v.title)
}
}
func TestCommau(t *testing.T) {
var u0 uint64
var u1 uint64 = 1111111111
assert.Equal(t, Commau(u0), "0")
assert.Equal(t, Commau(u1), "1,111,111,111")
}
func BenchmarkComma(b *testing.B) {
for i := 0; i < b.N; i++ {
Comma(1234567890)
}
}
func BenchmarkBigComma(b *testing.B) {
for i := 0; i < b.N; i++ {
BigComma(big.NewInt(1234567890))
}
}
func TestParseInts(t *testing.T) {
var empty []int
for _, v := range []struct {
s string
want []int
ok bool
}{
{"", empty, false},
{"3,1,3", []int{1, 3}, true},
{"3 \t\n,1- 5, 3\r-4", []int{1, 2, 3, 4, 5}, true},
} {
got, err := ParseInts(v.s)
assert.Equal(t, v.want, got)
assert.Equal(t, v.ok, err == nil)
}
}