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package svg
import (
"bytes"
"fmt"
"io"
"os"
"testing"
"github.com/tdewolff/minify/v2"
"github.com/tdewolff/minify/v2/css"
"github.com/tdewolff/test"
)
func TestSVG(t *testing.T) {
svgTests := []struct {
svg string
expected string
}{
{`<!-- comment -->`, ``},
{`<!DOCTYPE svg SYSTEM "foo.dtd">`, ``},
{`<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "foo.dtd" [ <!ENTITY x "bar"> ]>`, `<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "foo.dtd" [ <!ENTITY x "bar"> ]>`},
{`<!DOCTYPE svg SYSTEM "foo.dtd">`, ``},
{`<?xml version="1.0" ?>`, ``},
{`<style> <![CDATA[ x ]]> </style>`, `<style>x</style>`},
{`<style> <![CDATA[ <<<< ]]> </style>`, `<style><<<<</style>`},
{`<style> <![CDATA[ <<<<< ]]> </style>`, `<style><![CDATA[ <<<<< ]]></style>`},
{`<style/><![CDATA[ <<<<< ]]>`, `<style/><![CDATA[ <<<<< ]]>`},
{`<svg version="1.0"></svg>`, `<svg version="1.0"/>`},
{`<svg version="1.1" x="0" y="0px" width="100%" height="100%"><path/></svg>`, `<svg><path/></svg>`},
// TODO: what abour x="" y="" for viewBox?
//{`<svg width="24" height="24" viewBox="0 0 24 24"></svg>`, `<svg width="24" height="24"/>`},
{`<path x="a"> </path>`, `<path x="a"/>`},
{`<path x=""> </path>`, `<path/>`},
{`<path x=" a "/>`, `<path x="a"/>`},
{"<path x=\" a \n b \"/>", `<path x="a b"/>`},
{`<path x="5.0px" y="0%"/>`, `<path x="5" y="0"/>`},
{`<svg viewBox="5.0px 5px 240IN px"><path/></svg>`, `<svg viewBox="5 5 240in px"><path/></svg>`},
{`<svg viewBox="5.0!5px"><path/></svg>`, `<svg viewBox="5!5px"><path/></svg>`},
{`<path d="M 100 100 L 300 100 L 200 100 z"/>`, `<path d="M1e2 1e2H3e2 2e2z"/>`},
{`<path d="M100 -100M200 300z"/>`, `<path d="M1e2-1e2M2e2 3e2z"/>`},
{`<path d="M0.5 0.6 M -100 0.5z"/>`, `<path d="M.5.6M-1e2.5z"/>`},
{`<path d="M01.0 0.6 z"/>`, `<path d="M1 .6z"/>`},
{`<path d="M20 20l-10-10z"/>`, `<path d="M20 20 10 10z"/>`},
{`<?xml version="1.0" encoding="utf-8"?>`, ``},
{`<svg viewbox="0 0 16 16"><path/></svg>`, `<svg viewbox="0 0 16 16"><path/></svg>`},
{`<g></g>`, `<g/>`},
{`<g><path/></g>`, `<g><path/></g>`},
{`<g id="a"><g><path/></g></g>`, `<g id="a"><g><path/></g></g>`},
{`<path fill="#ffffff"/>`, `<path fill="#fff"/>`},
{`<path fill="#fff"/>`, `<path fill="#fff"/>`},
{`<path fill="white"/>`, `<path fill="#fff"/>`},
{`<path fill="#ff0000"/>`, `<path fill="red"/>`},
{`<rect x="5" y="10" rx="2" ry="3">`, ``},
{`<rect x="5" y="10" height="40"/>`, ``},
{`<rect x="5" y="10" width="30" height="0%"/>`, ``},
{`<rect x="5" y="10" width="30%" height="100%"/>`, `<rect x="5" y="10" width="30%" height="100%"/>`},
{`<svg contentStyleType="text/json ; charset=iso-8859-1"><style>{a : true}</style></svg>`, `<svg contentStyleType="text/json;charset=iso-8859-1"><style>{a : true}</style></svg>`},
{`<metadata><dc:title /></metadata>`, ``},
{`<metadata><dc:title />`, ``},
// from SVGO
{`<!DOCTYPE bla><?xml?><!-- comment --><metadata/>`, ``},
{`<polygon fill="none" stroke="#000" points="-0.1,"/>`, `<polygon fill="none" stroke="#000" points="-0.1,"/>`}, // #45
{`<path stroke="url(#UPPERCASE)"/>`, `<path stroke="url(#UPPERCASE)"/>`}, // #117
{`<rect height="10"/><path/>`, `<path/>`}, // #244
{`<rect height="10"><path/></rect>`, ``}, // #244
{`<foreignObject><div></div></foreignObject>`, `<foreignObject><div></div></foreignObject>`}, // #291
// go fuzz
{`<0 d=09e9.6e-9e0`, `<0 d="09e9.6e-9e0"`},
{`<line`, `<line`},
}
m := minify.New()
for _, tt := range svgTests {
t.Run(tt.svg, func(t *testing.T) {
r := bytes.NewBufferString(tt.svg)
w := &bytes.Buffer{}
err := Minify(m, w, r, nil)
test.Minify(t, tt.svg, err, w.String(), tt.expected)
})
}
}
func TestSVGStyle(t *testing.T) {
svgTests := []struct {
svg string
expected string
}{
{`<style> a > b {} </style>`, `<style>a>b{}</style>`},
{`<style> <![CDATA[ @media x < y {} ]]> </style>`, `<style>@media x < y{}</style>`},
{`<style> <![CDATA[ * { content: '<<<<<'; } ]]> </style>`, `<style><![CDATA[*{content:'<<<<<'}]]></style>`},
{`<style/><![CDATA[ * { content: '<<<<<'; ]]>`, `<style/><![CDATA[ * { content: '<<<<<'; ]]>`},
{`<path style="fill: black; stroke: #ff0000;"/>`, `<path style="fill:#000;stroke:red"/>`},
}
m := minify.New()
m.AddFunc("text/css", css.Minify)
for _, tt := range svgTests {
t.Run(tt.svg, func(t *testing.T) {
r := bytes.NewBufferString(tt.svg)
w := &bytes.Buffer{}
err := Minify(m, w, r, nil)
test.Minify(t, tt.svg, err, w.String(), tt.expected)
})
}
}
func TestSVGPrecision(t *testing.T) {
var svgTests = []struct {
svg string
expected string
}{
{`<svg x="1.234" y="0.001" width="1.001"><path/></svg>`, `<svg x="1" y=".001" width="1"><path/></svg>`},
}
m := minify.New()
o := &Minifier{Precision: 1}
for _, tt := range svgTests {
t.Run(tt.svg, func(t *testing.T) {
r := bytes.NewBufferString(tt.svg)
w := &bytes.Buffer{}
err := o.Minify(m, w, r, nil)
test.Minify(t, tt.svg, 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 {
svg string
n []int
}{
{`<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "foo.dtd" [ <!ENTITY x "bar"> ]>`, []int{0}},
{`abc`, []int{0}},
{`<style>abc</style>`, []int{2}},
{`<![CDATA[ <<<< ]]>`, []int{0}},
{`<![CDATA[ <<<<< ]]>`, []int{0}},
{`<path d="x"/>`, []int{0, 1, 2, 3, 4, 5}},
{`<path></path>`, []int{1}},
{`<svg>x</svg>`, []int{1, 3}},
{`<svg>x</svg >`, []int{3}},
}
m := minify.New()
for _, tt := range errorTests {
for _, n := range tt.n {
t.Run(fmt.Sprint(tt.svg, " ", tt.n), func(t *testing.T) {
r := bytes.NewBufferString(tt.svg)
w := test.NewErrorWriter(n)
err := Minify(m, w, r, nil)
test.T(t, err, test.ErrPlain)
})
}
}
}
func TestMinifyErrors(t *testing.T) {
errorTests := []struct {
svg string
err error
}{
{`<style>abc</style>`, test.ErrPlain},
{`<style><![CDATA[abc]]></style>`, test.ErrPlain},
{`<path style="abc"/>`, test.ErrPlain},
}
m := minify.New()
m.AddFunc("text/css", func(_ *minify.M, w io.Writer, r io.Reader, _ map[string]string) error {
return test.ErrPlain
})
for _, tt := range errorTests {
t.Run(tt.svg, func(t *testing.T) {
r := bytes.NewBufferString(tt.svg)
w := &bytes.Buffer{}
err := Minify(m, w, r, nil)
test.T(t, err, tt.err)
})
}
}
////////////////////////////////////////////////////////////////
func ExampleMinify() {
m := minify.New()
m.AddFunc("image/svg+xml", Minify)
m.AddFunc("text/css", css.Minify)
if err := m.Minify("image/svg+xml", os.Stdout, os.Stdin); err != nil {
panic(err)
}
}