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Copy pathminify_test.go
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142 lines (124 loc) · 3.12 KB
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package minify // import "github.com/tdewolff/minify"
import (
"bytes"
"errors"
"fmt"
"io"
"os"
"os/exec"
"testing"
)
var errDummy = errors.New("dummy error")
// from os/exec/exec_test.go
func helperCommand(t *testing.T, s ...string) *exec.Cmd {
cs := []string{"-test.run=TestHelperProcess", "--"}
cs = append(cs, s...)
cmd := exec.Command(os.Args[0], cs...)
cmd.Env = []string{"GO_WANT_HELPER_PROCESS=1"}
return cmd
}
////////////////////////////////////////////////////////////////
var m = &Minifier{map[string]Func{
"copy": func(m Minifier, w io.Writer, r io.Reader) error {
io.Copy(w, r)
return nil
},
"nil": func(m Minifier, w io.Writer, r io.Reader) error {
return nil
},
"err": func(m Minifier, w io.Writer, r io.Reader) error {
return errDummy
},
}, map[string]string{}}
func TestMinify(t *testing.T) {
if err := m.Minify("?", nil, nil); err != ErrNotExist {
t.Error(err, "!=", ErrNotExist)
}
if err := m.Minify("nil", nil, nil); err != nil {
t.Error(err, "!=", nil)
}
if err := m.Minify("err", nil, nil); err != errDummy {
t.Error(err, "!=", errDummy)
}
b := []byte("test")
if out, err := m.MinifyBytes("nil", b); err != nil || !bytes.Equal(out, []byte{}) {
t.Error(err, "!=", nil, "||", out, "!=", []byte{})
}
if out, err := m.MinifyBytes("?", b); err != ErrNotExist || !bytes.Equal(out, b) {
t.Error(err, "!=", ErrNotExist, "||", out, "!=", b)
}
s := "test"
if out, err := m.MinifyString("nil", s); err != nil || out != "" {
t.Error(err, "!=", nil, "||", out, "!=", "")
}
if out, err := m.MinifyString("?", s); err != ErrNotExist || out != s {
t.Error(err, "!=", ErrNotExist, "||", out, "!=", s)
}
}
func TestDefaultMinifiers(t *testing.T) {
m := NewMinifierDefault()
w := &bytes.Buffer{}
r := bytes.NewBufferString("html")
if err := m.Minify("text/html", w, r); err != nil {
t.Error(err)
}
r = bytes.NewBufferString("prop:val;")
if err := m.Minify("text/css", w, r); err != nil {
t.Error(err)
}
if w.String() != "htmlprop:val" {
t.Error(w.String(), "!=", "htmlprop:val")
}
}
func TestAdd(t *testing.T) {
m := NewMinifierDefault()
w := &bytes.Buffer{}
r := bytes.NewBufferString("test")
m.Add("err", func(m Minifier, w io.Writer, r io.Reader) error {
return errDummy
})
if err := m.Minify("err", nil, nil); err != errDummy {
t.Error(err, "!=", errDummy)
}
if err := m.AddCmd("copy", helperCommand(t, "copy")); err != nil {
t.Error(err)
}
if err := m.Minify("copy", w, r); err != nil {
t.Error(err)
}
if w.String() != "test" {
t.Error(w.String(), "!= test")
}
if err := m.AddCmd("err", helperCommand(t, "err")); err != nil {
t.Error(err)
}
if err := m.Minify("err", w, r); err.Error() != "exit status 1" {
t.Error(err)
}
}
func TestHelperProcess(*testing.T) {
if os.Getenv("GO_WANT_HELPER_PROCESS") != "1" {
return
}
defer os.Exit(0)
args := os.Args
for len(args) > 0 {
if args[0] == "--" {
args = args[1:]
break
}
args = args[1:]
}
if len(args) == 0 {
fmt.Fprintf(os.Stderr, "No command\n")
os.Exit(2)
}
cmd, args := args[0], args[1:]
switch cmd {
case "copy":
io.Copy(os.Stdout, os.Stdin)
case "err":
os.Exit(1)
}
os.Exit(0)
}