shad-go/varfmt/fmt_test.go

114 lines
2 KiB
Go
Raw Normal View History

2020-02-21 20:43:16 +00:00
package varfmt
import (
"strings"
"testing"
"github.com/stretchr/testify/require"
)
func TestFormat(t *testing.T) {
for _, tc := range []struct {
format string
args []interface{}
result string
}{
{
format: "{}",
args: []interface{}{0},
result: "0",
},
{
format: "{0} {0}",
args: []interface{}{1},
result: "1 1",
},
{
format: "{1} {5}",
args: []interface{}{0, 1, 2, 3, 4, 5, 6},
result: "1 5",
},
{
format: "{} {} {} {} {}",
args: []interface{}{0, 1, 2, 3, 4},
result: "0 1 2 3 4",
},
{
format: "{} {0} {0} {0} {}",
args: []interface{}{0, 1, 2, 3, 4},
result: "0 0 0 0 4",
},
{
format: "Hello, {2}",
args: []interface{}{0, 1, "World"},
result: "Hello, World",
},
} {
t.Run(tc.result, func(t *testing.T) {
require.Equal(t, tc.result, Sprintf(tc.format, tc.args...))
})
}
}
func BenchmarkFormat(b *testing.B) {
for _, tc := range []struct {
name string
format string
args []interface{}
}{
{
name: "small int",
format: "{}",
args: []interface{}{42},
},
{
name: "small string",
format: "{} {}",
args: []interface{}{"Hello", "World"},
},
{
name: "big",
format: strings.Repeat("{0}{1}", 1000),
args: []interface{}{42, 43},
},
} {
b.Run(tc.name, func(b *testing.B) {
b.ReportAllocs()
for i := 0; i < b.N; i++ {
_ = Sprintf(tc.format, tc.args...)
}
})
}
}
func BenchmarkSprintf(b *testing.B) {
for _, tc := range []struct {
name string
format string
args []interface{}
}{
{
name: "small",
format: "%d",
args: []interface{}{42},
},
{
name: "small string",
format: "%v %v",
args: []interface{}{"Hello", "World"},
}, {
name: "big",
format: strings.Repeat("%[0]v%[1]v", 1000),
args: []interface{}{42, 43},
},
} {
b.Run(tc.name, func(b *testing.B) {
b.ReportAllocs()
for i := 0; i < b.N; i++ {
_ = Sprintf(tc.format, tc.args...)
}
})
}
}