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package dedent
import (
"testing"
)
func TestDedent(t *testing.T) {
tt := []struct {
Input string
Expected string
}{
{
Input: " --help Show help for command\n --version Show version\n",
Expected: "--help Show help for command\n--version Show version\n",
},
{
Input: " --help Show help for command\n -C, --config string Specify the config file to use\n",
Expected: " --help Show help for command\n-C, --config string Specify the config file to use\n",
},
{
Input: " line 1\n\n line 2\n line 3",
Expected: " line 1\n\n line 2\nline 3",
},
{
Input: " line 1\n line 2\n line 3\n\n",
Expected: "line 1\nline 2\nline 3\n\n",
},
{
Input: " \tline 1\n\t\tline 2\n\t line 3\n\n",
Expected: "line 1\nline 2\nline 3\n\n",
},
{
Input: "\t\tline 1\n\n\t\tline 2\n\tline 3",
Expected: "\tline 1\n\n\tline 2\nline 3",
},
{
Input: "\n\n\n\n\n\n",
Expected: "\n\n\n\n\n\n",
},
{
Input: "",
Expected: "",
},
}
for i, tc := range tt {
s := String(tc.Input)
if s != tc.Expected {
t.Errorf("Test %d, expected:\n\n`%s`\n\nActual Output:\n\n`%s`", i, tc.Expected, s)
}
}
}
// go test -bench=BenchmarkDedent -benchmem -count=4
func BenchmarkDedent(b *testing.B) {
b.RunParallel(func(pb *testing.PB) {
input := " line 1\n\n line 2\n line 3"
b.ReportAllocs()
b.ResetTimer()
for pb.Next() {
String(input)
}
})
}
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