youtubebeat/vendor/github.com/PuerkitoBio/goquery/iteration_test.go

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2018-11-18 15:32:28 +01:00
package goquery
import (
"testing"
"golang.org/x/net/html"
)
func TestEach(t *testing.T) {
var cnt int
sel := Doc().Find(".hero-unit .row-fluid").Each(func(i int, n *Selection) {
cnt++
t.Logf("At index %v, node %v", i, n.Nodes[0].Data)
}).Find("a")
if cnt != 4 {
t.Errorf("Expected Each() to call function 4 times, got %v times.", cnt)
}
assertLength(t, sel.Nodes, 6)
}
func TestEachWithBreak(t *testing.T) {
var cnt int
sel := Doc().Find(".hero-unit .row-fluid").EachWithBreak(func(i int, n *Selection) bool {
cnt++
t.Logf("At index %v, node %v", i, n.Nodes[0].Data)
return false
}).Find("a")
if cnt != 1 {
t.Errorf("Expected Each() to call function 1 time, got %v times.", cnt)
}
assertLength(t, sel.Nodes, 6)
}
func TestEachEmptySelection(t *testing.T) {
var cnt int
sel := Doc().Find("zzzz")
sel.Each(func(i int, n *Selection) {
cnt++
})
if cnt > 0 {
t.Error("Expected Each() to not be called on empty Selection.")
}
sel2 := sel.Find("div")
assertLength(t, sel2.Nodes, 0)
}
func TestMap(t *testing.T) {
sel := Doc().Find(".pvk-content")
vals := sel.Map(func(i int, s *Selection) string {
n := s.Get(0)
if n.Type == html.ElementNode {
return n.Data
}
return ""
})
for _, v := range vals {
if v != "div" {
t.Error("Expected Map array result to be all 'div's.")
}
}
if len(vals) != 3 {
t.Errorf("Expected Map array result to have a length of 3, found %v.", len(vals))
}
}
func TestForRange(t *testing.T) {
sel := Doc().Find(".pvk-content")
initLen := sel.Length()
for i := range sel.Nodes {
single := sel.Eq(i)
//h, err := single.Html()
//if err != nil {
// t.Fatal(err)
//}
//fmt.Println(i, h)
if single.Length() != 1 {
t.Errorf("%d: expected length of 1, got %d", i, single.Length())
}
}
if sel.Length() != initLen {
t.Errorf("expected initial selection to still have length %d, got %d", initLen, sel.Length())
}
}