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Copy pathjs_test.go
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110 lines (97 loc) · 2.79 KB
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package js
import (
"bytes"
"fmt"
"os"
"testing"
"github.com/tdewolff/minify/v2"
"github.com/tdewolff/test"
)
func TestJS(t *testing.T) {
jsTests := []struct {
js string
expected string
}{
{"/*comment*/", ""},
{"// comment\na", "a"},
{"/*! bang comment */", "/*!bang comment*/"},
{"function x(){}", "function x(){}"},
{"function x(a, b){}", "function x(a,b){}"},
{"a b", "a b"},
{"a\n\nb", "a\nb"},
{"a// comment\nb", "a\nb"},
{"''\na", "''\na"},
{"''\n''", "''\n''"},
{"]\n0", "]\n0"},
{"a\n{", "a\n{"},
{";\na", ";a"},
{",\na", ",a"},
{"}\na", "}\na"},
{"+\na", "+\na"},
{"+\n(", "+\n("},
{"+\n\"\"", "+\n\"\""},
{"a + ++b", "a+ ++b"}, // JSMin caution
{"var a=/\\s?auto?\\s?/i\nvar", "var a=/\\s?auto?\\s?/i\nvar"}, // #14
{"var a=0\n!function(){}", "var a=0\n!function(){}"}, // #107
{"function(){}\n\"string\"", "function(){}\n\"string\""}, // #109
{"false\n\"string\"", "false\n\"string\""}, // #109
{"`\n", "`"}, // go fuzz
{"a\n~b", "a\n~b"}, // #132
{"x / /\\d+/.exec(s)[0]", "x/ /\\d+/.exec(s)[0]"}, // #183
{"function(){}\n`string`", "function(){}\n`string`"}, // #181
{"false\n`string`", "false\n`string`"}, // #181
{"`string`\nwhatever()", "`string`\nwhatever()"}, // #181
{"x+/**/++y", "x+ ++y"}, // #185
{"x+\n++y", "x+\n++y"}, // #185
{"f()/*!com\nment*/g()", "f()/*!com\nment*/g()"}, // #185
{"f()/*com\nment*/g()", "f()\ng()"}, // #185
{"f()/*!\n*/g()", "f()/*!\n*/g()"}, // #185
// go-fuzz
{`/\`, `/\`},
}
m := minify.New()
for _, tt := range jsTests {
t.Run(tt.js, func(t *testing.T) {
r := bytes.NewBufferString(tt.js)
w := &bytes.Buffer{}
err := Minify(m, w, r, nil)
test.Minify(t, tt.js, err, w.String(), tt.expected)
})
}
}
func TestReaderErrors(t *testing.T) {
r := test.NewErrorReader(0)
w := &bytes.Buffer{}
m := minify.New()
err := Minify(m, w, r, nil)
test.T(t, err, test.ErrPlain, "return error at first read")
}
func TestWriterErrors(t *testing.T) {
errorTests := []struct {
js string
n []int
}{
{"a\n{5 5", []int{0, 1, 4}},
{`/*!comment*/`, []int{0, 1, 2}},
{"false\n\"string\"", []int{1}}, // #109
}
m := minify.New()
for _, tt := range errorTests {
for _, n := range tt.n {
t.Run(fmt.Sprint(tt.js, " ", tt.n), func(t *testing.T) {
r := bytes.NewBufferString(tt.js)
w := test.NewErrorWriter(n)
err := Minify(m, w, r, nil)
test.T(t, err, test.ErrPlain)
})
}
}
}
////////////////////////////////////////////////////////////////
func ExampleMinify() {
m := minify.New()
m.AddFunc("application/javascript", Minify)
if err := m.Minify("application/javascript", os.Stdout, os.Stdin); err != nil {
panic(err)
}
}