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comma_test.go
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comma_test.go
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package humanize
import (
"math"
"math/big"
"testing"
)
func TestCommas(t *testing.T) {
testList{
{"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"},
}.validate(t)
}
func TestCommafWithDigits(t *testing.T) {
testList{
{"1.23, 0", CommafWithDigits(1.23, 0), "1"},
{"1.23, 1", CommafWithDigits(1.23, 1), "1.2"},
{"1.23, 2", CommafWithDigits(1.23, 2), "1.23"},
{"1.23, 3", CommafWithDigits(1.23, 3), "1.23"},
}.validate(t)
}
func TestCommafs(t *testing.T) {
testList{
{"0", Commaf(0), "0"},
{"10.11", Commaf(10.11), "10.11"},
{"100", Commaf(100), "100"},
{"1,000", Commaf(1000), "1,000"},
{"10,000", Commaf(10000), "10,000"},
{"100,000", Commaf(100000), "100,000"},
{"834,142.32", Commaf(834142.32), "834,142.32"},
{"10,000,000", Commaf(10000000), "10,000,000"},
{"10,100,000", Commaf(10100000), "10,100,000"},
{"10,010,000", Commaf(10010000), "10,010,000"},
{"10,001,000", Commaf(10001000), "10,001,000"},
{"123,456,789", Commaf(123456789), "123,456,789"},
{"maxf64", Commaf(math.MaxFloat64), "179,769,313,486,231,570,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000"},
{"minf64", Commaf(math.SmallestNonzeroFloat64), "0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005"},
{"-123,456,789", Commaf(-123456789), "-123,456,789"},
{"-10,100,000", Commaf(-10100000), "-10,100,000"},
{"-10,010,000", Commaf(-10010000), "-10,010,000"},
{"-10,001,000", Commaf(-10001000), "-10,001,000"},
{"-10,000,000", Commaf(-10000000), "-10,000,000"},
{"-100,000", Commaf(-100000), "-100,000"},
{"-10,000", Commaf(-10000), "-10,000"},
{"-1,000", Commaf(-1000), "-1,000"},
{"-100.11", Commaf(-100.11), "-100.11"},
{"-10", Commaf(-10), "-10"},
}.validate(t)
}
func BenchmarkCommas(b *testing.B) {
for i := 0; i < b.N; i++ {
Comma(1234567890)
}
}
func BenchmarkCommaf(b *testing.B) {
for i := 0; i < b.N; i++ {
Commaf(1234567890.83584)
}
}
func BenchmarkBigCommas(b *testing.B) {
for i := 0; i < b.N; i++ {
BigComma(big.NewInt(1234567890))
}
}
func bigComma(i int64) string {
return BigComma(big.NewInt(i))
}
func TestBigCommas(t *testing.T) {
testList{
{"0", bigComma(0), "0"},
{"10", bigComma(10), "10"},
{"100", bigComma(100), "100"},
{"1,000", bigComma(1000), "1,000"},
{"10,000", bigComma(10000), "10,000"},
{"100,000", bigComma(100000), "100,000"},
{"10,000,000", bigComma(10000000), "10,000,000"},
{"10,100,000", bigComma(10100000), "10,100,000"},
{"10,010,000", bigComma(10010000), "10,010,000"},
{"10,001,000", bigComma(10001000), "10,001,000"},
{"123,456,789", bigComma(123456789), "123,456,789"},
{"maxint", bigComma(9.223372e+18), "9,223,372,000,000,000,000"},
{"minint", bigComma(-9.223372e+18), "-9,223,372,000,000,000,000"},
{"-123,456,789", bigComma(-123456789), "-123,456,789"},
{"-10,100,000", bigComma(-10100000), "-10,100,000"},
{"-10,010,000", bigComma(-10010000), "-10,010,000"},
{"-10,001,000", bigComma(-10001000), "-10,001,000"},
{"-10,000,000", bigComma(-10000000), "-10,000,000"},
{"-100,000", bigComma(-100000), "-100,000"},
{"-10,000", bigComma(-10000), "-10,000"},
{"-1,000", bigComma(-1000), "-1,000"},
{"-100", bigComma(-100), "-100"},
{"-10", bigComma(-10), "-10"},
}.validate(t)
}
func TestVeryBigCommas(t *testing.T) {
tests := []struct{ in, exp string }{
{
"84889279597249724975972597249849757294578485",
"84,889,279,597,249,724,975,972,597,249,849,757,294,578,485",
},
{
"-84889279597249724975972597249849757294578485",
"-84,889,279,597,249,724,975,972,597,249,849,757,294,578,485",
},
}
for _, test := range tests {
n, _ := (&big.Int{}).SetString(test.in, 10)
got := BigComma(n)
if test.exp != got {
t.Errorf("Expected %q, got %q", test.exp, got)
}
}
}