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|
package dom
import (
"reflect"
"strings"
"testing"
"golang.org/x/net/html"
)
func TestGetAttribute(t *testing.T) {
node := &html.Node{
Attr: []html.Attribute{
{
Key: "previouskey",
Val: "previousval",
},
{
Key: "mykey",
Val: "myval",
},
},
}
actual, found := GetAttribute(node, "mykey")
if !found {
t.Error("expected found to be true")
}
if actual != "myval" {
t.Error("expected different value")
}
actual, found = GetAttribute(node, "unknownkey")
if found {
t.Error("expected found to be false")
}
if actual != "" {
t.Error("expected empty value")
}
}
func TestGetAttributeOr(t *testing.T) {
node := &html.Node{
Attr: []html.Attribute{
{
Key: "previouskey",
Val: "previousval",
},
{
Key: "mykey",
Val: "myval",
},
{
Key: "nextkey",
Val: "nextval",
},
},
}
actual := GetAttributeOr(node, "mykey", "myfallback")
if actual != "myval" {
t.Error("expected different value")
}
actual = GetAttributeOr(node, "unknownkey", "myfallback")
if actual != "myfallback" {
t.Error("expected different fallback value")
}
}
func TestGetClasses(t *testing.T) {
node1 := &html.Node{
Type: html.ElementNode,
Data: "h1",
Attr: []html.Attribute{
{
Key: "class",
Val: " form form--theme-xmas form--simple",
},
},
}
classes := GetClasses(node1)
if !reflect.DeepEqual(classes, []string{"form", "form--theme-xmas", "form--simple"}) {
t.Error("the slice of classes dont match")
}
node2 := &html.Node{
Type: html.ElementNode,
Data: "h1",
Attr: []html.Attribute{},
}
classes = GetClasses(node2)
if len(classes) != 0 {
t.Error("expected no classes")
}
}
func TestHasID(t *testing.T) {
node1 := &html.Node{
Type: html.ElementNode,
Data: "h1",
Attr: []html.Attribute{
{
Key: "id",
Val: " city__name ",
},
},
}
if HasID(node1, "city__name") != true {
t.Error("expected different output")
}
if HasID(node1, "city__image") != false {
t.Error("expected different output")
}
node2 := &html.Node{
Type: html.ElementNode,
Data: "h1",
Attr: []html.Attribute{},
}
if HasID(node2, "city__name") != false {
t.Error("expected different output")
}
}
func TestHasClass(t *testing.T) {
node := &html.Node{
Type: html.ElementNode,
Data: "h1",
Attr: []html.Attribute{
{
Key: "class",
Val: " form form--theme-xmas form--simple",
},
},
}
if HasClass(node, "form--theme-xmas") != true {
t.Error("expected different output")
}
if HasClass(node, "xmas") != false {
t.Error("expected different output")
}
}
func TestCollectText(t *testing.T) {
input := `
<h2 class="article__title">Hello <span>world</span></h2>
<p>Some description</p>
`
doc, err := html.Parse(strings.NewReader(input))
if err != nil {
t.Fatal(err)
}
heading := FindFirstNode(doc, func(node *html.Node) bool {
return HasClass(node, "article__title")
})
expected := "Hello world"
output := CollectText(heading)
if output != expected {
t.Errorf("expected %q but got %q", expected, output)
}
}
|
