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|
package cascadia
import (
"fmt"
"strings"
"testing"
"golang.org/x/net/html"
)
type testSpec struct {
// html, css selector
HTML, selector string
// correct specificity
spec Specificity
}
var testsSpecificity = []testSpec{
{
HTML: `<html><body><div><div><a href="http://www.foo.com"></a></div></div></body></html>`,
selector: ":not(em, strong#foo)",
spec: Specificity{1, 0, 1},
},
{
HTML: `<html><body><div><div><a href="http://www.foo.com"></a></div></div></body></html>`,
selector: "*",
spec: Specificity{0, 0, 0},
},
{
HTML: `<html><body><div><div><ul></ul></div></div></body></html>`,
selector: "ul",
spec: Specificity{0, 0, 1},
},
{
HTML: `<html><body><div><ul><li></li></ul></div></body></html>`,
selector: "ul li",
spec: Specificity{0, 0, 2},
},
{
HTML: `<html><body><div><ul><ol></ol><li></li></ul></div></body></html>`,
selector: "ul ol+li",
spec: Specificity{0, 0, 3},
},
{
HTML: `<html><body><div><ul><h1></h1><li rel="up"></li></ul></div></body></html>`,
selector: "H1 + *[REL=up] ",
spec: Specificity{0, 1, 1},
},
{
HTML: `<html><body><ul><ol><li class="red"></li></ol></ul></body></html>`,
selector: "UL OL LI.red",
spec: Specificity{0, 1, 3},
},
{
HTML: `<html><body><ul><ol><li class="red level"></li></ol></ul></body></html>`,
selector: "LI.red.level",
spec: Specificity{0, 2, 1},
},
{
HTML: `<html><body><ul><ol><li id="x34y"></li></ol></ul></body></html>`,
selector: "#x34y",
spec: Specificity{1, 0, 0},
},
{
HTML: `<html><body><ul><ol><li id="s12"></li></ol></ul></body></html>`,
selector: "#s12:not(FOO)",
spec: Specificity{1, 0, 1},
},
{
HTML: `<html><body><ul><ol><li id="s12"></li></ol></ul></body></html>`,
selector: "#s12:not(FOO)",
spec: Specificity{1, 0, 1},
},
{
HTML: `<html><body><ul><ol><li id="s12"></li></ol></ul></body></html>`,
selector: "#s12:empty",
spec: Specificity{1, 1, 0},
},
{
HTML: `<html><body><ul><ol><li id="s12"></li></ol></ul></body></html>`,
selector: "#s12:only-child",
spec: Specificity{1, 1, 0},
},
}
func setupSel(selector, HTML string) (Sel, *html.Node, error) {
s, err := Parse(selector)
if err != nil {
return nil, nil, fmt.Errorf("error compiling %q: %s", selector, err)
}
doc, err := html.Parse(strings.NewReader(HTML))
if err != nil {
return nil, nil, fmt.Errorf("error parsing %q: %s", HTML, err)
}
return s, doc, nil
}
func TestSpecificity(t *testing.T) {
for _, test := range testsSpecificity {
s, doc, err := setupSel(test.selector, test.HTML)
if err != nil {
t.Fatal(err)
}
body := doc.FirstChild.LastChild
testNode := body.FirstChild.FirstChild.LastChild
if !s.Match(testNode) {
t.Errorf("%s didn't match (html tree : \n %s) \n", test.selector, nodeString(doc))
continue
}
gotSpec := s.Specificity()
if gotSpec != test.spec {
t.Errorf("wrong specificity : expected %v, got %v", test.spec, gotSpec)
}
}
}
func TestCompareSpecificity(t *testing.T) {
s1, s2 := Specificity{1, 1, 0}, Specificity{1, 0, 0}
if s1.Less(s2) {
t.Fatal()
}
if s1.Less(s1) {
t.Fatal()
}
}
|
