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333 lines (307 loc) · 13.6 KB
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package css // import "github.com/tdewolff/minify/css"
import (
"bytes"
"fmt"
"os"
"testing"
"github.com/tdewolff/minify/v2"
"github.com/tdewolff/parse/v2/css"
"github.com/tdewolff/test"
)
func TestCSS(t *testing.T) {
cssTests := []struct {
css string
expected string
}{
{"/*comment*/", ""},
{"/*! bang comment */", "/*!bang comment*/"},
{"i{}/*! bang comment */", "i{}/*!bang comment*/"},
{"i { key: value; key2: value; }", "i{key:value;key2:value}"},
{".cla .ss > #id { x:y; }", ".cla .ss>#id{x:y}"},
{".cla[id ^= L] { x:y; }", ".cla[id^=L]{x:y}"},
{"area:focus { outline : 0;}", "area:focus{outline:0}"},
{"@import 'file';", "@import 'file'"},
{"@import url('file');", "@import 'file'"},
{"@import url(//url);", `@import "//url"`},
{"@font-face { x:y; }", "@font-face{x:y}"},
{"input[type=\"radio\"]{x:y}", "input[type=radio]{x:y}"},
{"input[type=\"radio\" i]{x:y}", "input[type=radio i]{x:y}"},
{"DIV{margin:1em}", "div{margin:1em}"},
{".CLASS{margin:1em}", ".CLASS{margin:1em}"},
{"@MEDIA all{}", "@media all{}"},
{"@media only screen and (max-width : 800px){}", "@media only screen and (max-width:800px){}"},
{"@media (-webkit-min-device-pixel-ratio:1.5),(min-resolution:1.5dppx){}", "@media(-webkit-min-device-pixel-ratio:1.5),(min-resolution:1.5dppx){}"},
{"[class^=icon-] i[class^=icon-],i[class*=\" icon-\"]{x:y}", "[class^=icon-] i[class^=icon-],i[class*=\" icon-\"]{x:y}"},
{"html{line-height:1;}html{line-height:1;}", "html{line-height:1}html{line-height:1}"},
{"a { b: 1", "a{b:1}"},
{":root { --custom-variable:0px; }", ":root{--custom-variable:0px}"},
// case sensitivity
{"@counter-style Ident{}", "@counter-style Ident{}"},
// coverage
{"a, b + c { x:y; }", "a,b+c{x:y}"},
// bad declaration
{".clearfix { *zoom: 1px; }", ".clearfix{*zoom:1px}"},
{".clearfix { *zoom: 1px }", ".clearfix{*zoom:1px}"},
{".clearfix { color:green; *zoom: 1px; color:red; }", ".clearfix{color:green;*zoom:1px;color:red}"},
// go-fuzz
{"input[type=\"\x00\"] { a: b\n}.a{}", "input[type=\"\x00\"]{a:b}.a{}"},
{"a{a:)'''", "a{a:)'''}"},
{"{T:l(", "{t:l(}"},
}
m := minify.New()
for _, tt := range cssTests {
t.Run(tt.css, func(t *testing.T) {
r := bytes.NewBufferString(tt.css)
w := &bytes.Buffer{}
err := Minify(m, w, r, nil)
test.Minify(t, tt.css, err, w.String(), tt.expected)
})
}
// coverage
test.T(t, Token{css.IdentToken, []byte("data"), nil}.String(), "Ident(data)")
test.T(t, Token{css.FunctionToken, nil, []css.Token{{css.IdentToken, []byte("data")}}}.String(), "[Ident('data')]")
}
func TestCSSInline(t *testing.T) {
cssTests := []struct {
css string
expected string
}{
{"/*comment*/", ""},
{"/*! bang comment */", ""},
{";&qu
8000
ot;, ""},
{"empty:", "empty:"},
{"key: value;", "key:value"},
{"margin: 0 1; padding: 0 1;", "margin:0 1;padding:0 1"},
{"color: #FF0000;", "color:red"},
{"color: #000000;", "color:#000"},
{"color: #aabbccdd;", "color:#abcd"},
{"color: #aabbccff;", "color:#abc"},
{"color: #aabbcc00;", "color:#0000"},
{"color: black;", "color:#000"},
{"color: rgb(255,255,255);", "color:#fff"},
{"color: rgb(100%,100%,100%);", "color:#fff"},
{"color: rgba(255,0,0,1);", "color:red"},
{"color: rgba(255,0,0,2);", "color:red"},
{"color: rgba(255,0,0,0.5);", "color:rgba(255,0,0,.5)"}, // {"color: rgba(255,0,0,0.5);", "color:#ff000080"},
{"color: rgba(255,0,0,-1);", "color:transparent"}, // {"color: rgba(255,0,0,-1);", "color:#0000"},
// {"color: rgba(0%,15%,25%,0.2);", "color:rgba(0,15%,25%,.2)"}, TODO: zero percentage to zero // {"color: rgba(0%,15%,25%,0.2);", "color:#00264033"},
{"color: rgba(0,0,0,0.5);", "color:rgba(0,0,0,.5)"}, // {"color: rgba(0,0,0,0.5);", "color:#00000080"},
{"color: rgba(0,0,0,0.264705882);", "color:rgba(0,0,0,.264705882)"}, // {"color: rgba(0,0,0,0.264705882);", "color:#0004"},
{"color: rgb(255 0 0 / 1);", "color:red"},
{"color: hsla(5,0%,10%,0.75);", "color:hsla(5,0%,10%,.75)"}, // {"color: hsla(5,0%,10%,0.75);", "color:#1a1a1abf"},
{"color: hsl(0,100%,50%);", "color:red"},
{"color: hsla(1,2%,3%,1);", "color:#080807"},
{"color: hsla(1,2%,3%,0);", "color:transparent"}, // {"color: hsla(1,2%,3%,0);", "color:#0000"},
{"color: hsl(48,100%,50%);", "color:#fc0"},
{"color: hsl(0 100% 50% / 1);", "color:red"},
{"color: hsl(400, 150%, 150%, 2);", "color:#fff"},
{"background-position:top", "background-position:top"},
{"background-position:bottom", "background-position:bottom"},
{"background-position:center", "background-position:50%"},
{"background-position:left 50%", "background-position:0"},
{"background-position:center center", "background-position:50%"},
{"background-position:center bottom", "background-position:50% 100%"},
{"background-position:top right", "background-position:100% 0"},
{"background-position:bottom left", "background-position:0 100%"},
{"background-position:top center", "background-position:50% 0"},
{"background-position:bottom center", "background-position:50% 100%"},
{"background-position:bottom 5% right 0%", "background-position:bottom 5% right"},
{"background-position:bottom 0 right 10%", "background-position:bottom right 10%"},
{"background-position:center right 10%", "background-position:center right 10%"},
{"background-repeat:space space", "background-repeat:space"},
{"background-repeat:round round", "background-repeat:round"},
{"background-repeat:repeat repeat", "background-repeat:repeat"},
{"background-repeat:no-repeat no-repeat", "background-repeat:no-repeat"},
{"background-repeat:repeat no-repeat", "background-repeat:repeat-x"},
{"background-repeat:no-repeat repeat", "background-repeat:repeat-y"},
{"background-size:auto auto", "background-size:auto"},
{"background-size:30% auto", "background-size:30%"},
{"background:red", "background:red"},
{"background:red none", "background:red"},
{"background:red none 0 0", "background:red"},
{"background:red none 1 1", "background:red 1 1"},
{"background:#0000 1 1", "background:1 1"},
{"background:transparent", "background:0 0"},
{"background:transparent no-repeat", "background:no-repeat"},
{"background:#0000 none padding-box 0 0 / auto auto scroll border-box repeat repeat", "background:0 0"},
{"background:0 0 / auto", "background:0 0"},
{"background:0 0 / auto 10%", "background:0 0/auto 10%"},
{"background:0% 0%", "background:0 0"},
{"background:left top", "background:0 0"},
{"background:no-repeat repeat", "background:repeat-y"},
{"background:top right", "background:100% 0"},
{"background:bottom left", "background:0 100%"},
{"font-weight: bold; font-weight: normal;", "font-weight:700;font-weight:400"},
{"font: caption;", "font:caption"},
{"font: bold 5px \"Times new Roman\",\"Sans-Serif\";", "font:700 5px times new roman,sans-serif"},
{"font: bold xx-small times new roman;", "font:700 xx-small times new roman"},
{"font: normal normal normal normal 20px normal", "font:20px normal"},
{"font:27px/13px arial,sans-serif", "font:27px/13px arial,sans-serif"},
{"font:normal normal bold normal medium/normal arial,sans-serif", "font:700 medium arial,sans-serif"},
{"font:400 medium/normal 'Arial'", "font:medium arial"},
{"font:medium/normal 'Arial'", "font:medium arial"},
{"font-family:'Arial', 'Times New Roman';", "font-family:arial,times new roman"},
{"font-family:'a b';", "font-family:'a b'"},
{"outline: none;", "outline:none"},
{"outline: solid black 0;", "outline:solid #000 0"},
{"outline: none black medium;", "outline:#000"},
{"outline: none !important;", "outline:none!important"},
{"border-left: none;", "border-left:none"},
{"border-left: none 0;", "border-left:0"},
{"border-left: none medium currentcolor;", "border-left:none"},
{"border-left: 0 dashed red;", "border-left:0 dashed red"},
{"margin: 1 1 1 1;", "margin:1"},
{"margin: 1 2 1 2;", "margin:1 2"},
{"margin: 1 2 3 2;", "margin:1 2 3"},
{"margin: 1 2 3 4;", "margin:1 2 3 4"},
{"margin: 1 1 1 a;", "margin:1 1 1 a"},
{"margin: 1 1 1 1 !important;", "margin:1!important"},
{"padding:.2em .4em .2em", "padding:.2em .4em"},
{"margin: 0em;", "margin:0"},
{"filter: progid : DXImageTransform.Microsoft.BasicImage(rotation=1);", "filter:progid:DXImageTransform.Microsoft.BasicImage(rotation=1)"},
{"filter: progid:DXImageTransform.Microsoft.Alpha(Opacity=0);", "filter:alpha(opacity=0)"},
{"content: \"a\\\nb\";", "content:\"ab\""},
{"content: \"a\\\r\nb\\\r\nc\";", "content:\"abc\""},
{"content: \"\";", "content:\"\""},
{"x: white , white", "x:#fff,#fff"},
{"text-decoration: none !important", "text-decoration:none!important"},
{"color:#fff", "color:#fff"},
{"border:2px rgb(255,255,255);", "border:2px #fff"},
{"margin:-1px", "margin:-1px"},
{"margin:+1px", "margin:1px"},
{"margin:0.5em", "margin:.5em"},
{"margin:-0.5em", "margin:-.5em"},
{"margin:05em", "margin:5em"},
{"margin:.50em", "margin:.5em"},
{"margin:5.0em", "margin:5em"},
{"margin:5000em", "margin:5e3em"},
{"color:#c0c0c0", "color:silver"},
{"-ms-filter: \"progid:DXImageTransform.Microsoft.Alpha(Opacity=80)\";", "-ms-filter:\"alpha(opacity=80)\""},
{"filter: progid:DXImageTransform.Microsoft.Alpha(Opacity = 80);", "filter:alpha(opacity=80)"},
{"MARGIN:1EM", "margin:1em"},
//{"color:CYAN", "color:cyan"}, // TODO
{"width:attr(Name em)", "width:attr(Name em)"},
{"content:CounterName", "content:CounterName"},
{"background:url('http://domain.com/image.png');", "background:url(http://domain.com/image.png)"},
{"background:url( 'http://domain.com/image.png' );", "background:url(http://domain.com/image.png)"},
{"background:URL(x.PNG);", "background:url(x.PNG)"},
{"background:url(/*nocomment*/)", "background:url(/*nocomment*/)"},
{"background:url(data:,text)", "background:url(data:,text)"},
{"background:url('data:text/xml; version = 2.0,content')", "background:url(data:text/xml;version=2.0,content)"},
{"background:url('data:\\'\",text')", "background:url('data:\\'\",text')"},
{"margin:0 0 18px 0;", "margin:0 0 18px"},
{"z-index:1000", "z-index:1000"},
{"box-shadow:0 0 0 0", "box-shadow:0 0"},
{"flex:0px", "flex:0px"},
{"g:url('abc\\\ndef')", "g:url(abcdef)"},
{"url:local('abc\\\ndef')", "url:local(abcdef)"},
{"any:0deg 0s 0ms 0dpi 0dpcm 0dppx 0hz 0khz", "any:0 0s 0ms 0dpi 0dpcm 0dppx 0hz 0khz"},
{"width:calc(0%-0px)", "width:calc(0%-0px)"},
{"margin:calc(10px) calc(20px)", "margin:calc(10px) calc(20px)"},
{"border-left:0 none", "border-left:0"},
{"--custom-variable:0px;", "--custom-variable:0px"},
{"--foo: if(x > 5) this.width = 10", "--foo: if(x > 5) this.width = 10"},
{"--foo: ;", "--foo: "},
{"color=blue;", "color=blue"},
// case sensitivity
{"animation:Ident", "animation:Ident"},
{"animation-name:Ident", "animation-name:Ident"},
// coverage
{"margin: 1 1;", "margin:1"},
{"margin: 1 2;", "margin:1 2"},
{"margin: 1 1 1;", "margin:1"},
{"margin: 1 2 1;", "margin:1 2"},
{"margin: 1 2 3;", "margin:1 2 3"},
// {"margin: 0%;", "margin:0"}, // TODO
{"color: rgb(255,64,64);", "color:#ff4040"},
{"color: rgb(256,-34,2342435);", "color:#f0f"},
{"color: rgb(120%,-45%,234234234%);", "color:#f0f"},
{"color: rgb(0, 1, ident);", "color:rgb(0,1,ident)"},
{"color: rgb(ident);", "color:rgb(ident)"},
{"color: hsl(0,-1%,-1%);", "color:#000"},
{"margin: rgb(ident);", "margin:rgb(ident)"},
{"filter: progid:b().c.Alpha(rgba(x));", "filter:progid:b().c.Alpha(rgba(x))"},
{"margin: rgb((brackets));", "margin:rgb((brackets))"},
// go-fuzz
{"FONT-FAMILY: ru\"", "font-family:ru\""},
}
m := minify.New()
params := map[string]string{"inline": "1"}
for _, tt := range cssTests {
t.Run(tt.css, func(t *testing.T) {
r := bytes.NewBufferString(tt.css)
w := &bytes.Buffer{}
err := Minify(m, w, r, params)
test.Minify(t, tt.css, err, w.String(), tt.expected)
})
}
}
func TestCSSKeepCSS2(t *testing.T) {
tests := []struct {
css string
expected string
}{
{`margin:5000em`, `margin:5000em`},
}
m := minify.New()
params := map[string]string{"inline": "1"}
cssMinifier := &Minifier{Decimals: -1, KeepCSS2: true}
for _, tt := range tests {
t.Run(tt.css, func(t *testing.T) {
r := bytes.NewBufferString(tt.css)
w := &bytes.Buffer{}
err := cssMinifier.Minify(m, w, r, params)
test.Minify(t, tt.css, 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 {
css string
n []int
}{
{`@import 'file'`, []int{0, 2}},
{`@media all{}`, []int{0, 2, 3, 4}},
{`a[id^="L"]{margin:2in!important;color:red}`, []int{0, 4, 6, 7, 8, 9, 10, 11}},
{`a{color:rgb(255,0,0)}`, []int{4}},
{`a{color:rgb(255,255,255)}`, []int{4}},
{`a{color:hsl(0,100%,50%)}`, []int{4}},
{`a{color:hsl(360,100%,100%)}`, []int{4}},
{`a{color:f(arg)}`, []int{4}},
{`<!--`, []int{0}},
{`/*!comment*/`, []int{0, 1, 2}},
{`a{--var:val}`, []int{2, 3, 4}},
{`a{*color:0}`, []int{2, 3}},
{`a{color:0;baddecl 5}`, []int{5}},
{`a[id="x" i],b{color:0}`, []int{5, 8}},
{`a{color:()!important}`, []int{4, 6}},
{`a{margin:5 4}`, []int{5}},
{`a{margin=5}`, []int{2, 3}},
}
m := minify.New()
for _, tt := range errorTests {
for _, n := range tt.n {
t.Run(fmt.Sprint(tt.css, " ", tt.n), func(t *testing.T) {
r := bytes.NewBufferString(tt.css)
w := test.NewErrorWriter(n)
err := Minify(m, w, r, nil)
test.T(t, err, test.ErrPlain)
})
}
}
}
////////////////////////////////////////////////////////////////
func ExampleMinify() {
m := minify.New()
m.AddFunc("text/css", Minify)
if err := m.Minify("text/css", os.Stdout, os.Stdin); err != nil {
panic(err)
}
}