ref: eeb069251719e5c5e23c018f59ca8b158b3afb13
dir: /img/img_test.go/
package img
import (
"bytes"
"github.com/psilva261/opossum"
"github.com/psilva261/opossum/logger"
"image"
"image/png"
"net/url"
"testing"
)
func init() {
log.Debug = true
}
func TestParseDataUri(t *testing.T) {
srcs := []string{"data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP//yH5BAEAAAAALAAAAAABAAEAAAIBRAA7",
"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mNgYAAAAAMAASsJTYQAAAAASUVORK5CYII=",
// svg examples from github.com/tigt/mini-svg-data-uri (MIT License, (c) 2018 Taylor Hunt)
"data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 50 50' %3e%3cpath d='M22 38V51L32 32l19-19v12C44 26 43 10 38 0 52 15 49 39 22 38z'/%3e %3c/svg%3e",
"data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCA1MCA1MCI+PHBhdGggZD0iTTIyIDM4VjUxTDMyIDMybDE5LTE5djEyQzQ0IDI2IDQzIDEwIDM4IDAgNTIgMTUgNDkgMzkgMjIgMzh6Ii8+PC9zdmc+",
`data:image/svg+xml;charset=utf-8,%3Csvg xmlns=http://www.w3.org/2000/svg%3E%3C/svg%3E`,
}
for _, src := range srcs {
data, _, err := parseDataUri(src)
if err != nil {
t.Fatalf(err.Error())
}
t.Logf("%v", data)
}
}
func TestEmpty(t *testing.T) {
src := "data:image/svg+xml"
_, _, err := parseDataUri(src)
if err == nil {
t.Fatalf(err.Error())
}
}
func TestSvg(t *testing.T) {
xml := `
<svg fill="currentColor" height="24" viewBox="0 0 24 24" width="24">
</svg>
`
_, err := Svg(xml, 0, 0)
if err != nil {
t.Fatalf(err.Error())
}
}
func TestSvgUnquoted(t *testing.T) {
xml := `
<svg fill=currentColor height=24 viewBox=0 0 24 24 width=24>
<g fill=green></g>
<g fill=yellow/>
</svg>
`
xml = `<svg xmlns=http://www.w3.org/2000/svg viewBox=0 0 37 37 fill=#000000><path class=border fill=blue stroke=green/></svg>`
_, err := Svg(xml, 0, 0)
if err != nil {
t.Fatalf(err.Error())
}
}
func TestQuoteAttrsInTag(t *testing.T) {
cases := map[string]string{
`<svg xmlns=http://www.w3.org/2000/svg viewBox=0 0 37 37 fill=#000000>`: `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 37 37" fill="#000000">`,
`<path class=border fill=yellow stroke=green d=M29.2 21.3 0z/>`: `<path class="border" fill="yellow" stroke="green" d="M29.2 21.3 0z"/>`,
`</svg>`: `</svg>`,
}
for c, exp := range cases {
q := quoteAttrsInTag(c)
if q != exp {
t.Errorf("%+v != %+v", q, exp)
}
}
}
type MockBrowser struct {
data []byte
}
func (b *MockBrowser) Origin() *url.URL { return nil }
func (b *MockBrowser) LinkedUrl(string) (*url.URL, error) { return nil, nil }
func (b *MockBrowser) Get(*url.URL) ([]byte, opossum.ContentType, error) {
return b.data, opossum.ContentType{}, nil
}
func TestLoad(t *testing.T) {
rows := [][]int{
{1700, 0, 0, 1600, 900},
{160, 0, 0, 160, 90},
{0, 0, 45, 80, 45},
{0, 0, 0, 1600, 900},
{0, 800, 800, 800, 450},
}
for _, r := range rows {
t.Logf("test case %+v", r)
mw, w, h, xNew, yNew := r[0], r[1], r[2], r[3], r[4]
dst := image.NewRGBA(image.Rect(0, 0, 1600, 900))
buf := bytes.NewBufferString("")
if err := png.Encode(buf, dst); err != nil {
t.Fail()
}
b := &MockBrowser{buf.Bytes()}
r, err := Load(b, "", mw, w, h)
if err != nil {
t.Errorf("load: %v", err)
}
img, _, err := image.Decode(r)
if err != nil {
t.Errorf("decode")
}
dx := img.Bounds().Max.X
dy := img.Bounds().Max.Y
if dx != xNew || dy != yNew {
t.Errorf("unexpected size %v x %v", dx, dy)
}
}
}
func TestNewSizes(t *testing.T) {
x0 := 400
y0 := 300
x1, y1, _ := newSizes(x0, y0, 100, 0)
if x1 != 100 || y1 != 75 {
t.Fail()
}
x1, y1, _ = newSizes(x0, y0, 0, 100)
if x1 != 133 || y1 != 100 {
t.Fail()
}
// Enforce aspect ratio based on width
x1, y1, _ = newSizes(x0, y0, 800, 800)
if x1 != 800 || y1 != 600 {
t.Fail()
}
}