-
Notifications
You must be signed in to change notification settings - Fork 74
/
query_test.go
200 lines (177 loc) · 4.59 KB
/
query_test.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
package htmlquery
import (
"compress/gzip"
"fmt"
"io/ioutil"
"net/http"
"net/http/httptest"
"os"
"strings"
"sync"
"testing"
"github.com/antchfx/xpath"
"golang.org/x/net/html"
)
const htmlSample = `<!DOCTYPE html><html lang="en-US">
<head>
<title>Hello,World!</title>
</head>
<body>
<div class="container">
<header>
<!-- Logo -->
<h1>City Gallery</h1>
</header>
<nav>
<ul>
<li><a href="/London">London</a></li>
<li><a href="/Paris">Paris</a></li>
<li><a href="/Tokyo">Tokyo</a></li>
</ul>
</nav>
<article>
<h1>London</h1>
<img src="pic_mountain.jpg" alt="Mountain View" style="width:304px;height:228px;">
<p>London is the capital city of England. It is the most populous city in the United Kingdom, with a metropolitan area of over 13 million inhabitants.</p>
<p>Standing on the River Thames, London has been a major settlement for two millennia, its history going back to its founding by the Romans, who named it Londinium.</p>
</article>
<footer>Copyright © W3Schools.com</footer>
</div>
</body>
</html>
`
var testDoc = loadHTML(htmlSample)
func BenchmarkSelectorCache(b *testing.B) {
DisableSelectorCache = false
for i := 0; i < b.N; i++ {
getQuery("/AAA/BBB/DDD/CCC/EEE/ancestor::*")
}
}
func BenchmarkDisableSelectorCache(b *testing.B) {
DisableSelectorCache = true
for i := 0; i < b.N; i++ {
getQuery("/AAA/BBB/DDD/CCC/EEE/ancestor::*")
}
}
func TestSelectorCache(t *testing.T) {
SelectorCacheMaxEntries = 2
for i := 1; i <= 3; i++ {
getQuery(fmt.Sprintf("//a[position()=%d]", i))
}
getQuery("//a[position()=3]")
}
func TestLoadURL(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
fmt.Fprint(w, htmlSample)
}))
defer ts.Close()
_, err := LoadURL(ts.URL)
if err != nil {
t.Fatal(err)
}
}
func TestLoadURLWithGzipResponse(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Add("Content-Encoding", "gzip")
gz := gzip.NewWriter(w)
defer gz.Close()
fmt.Fprint(gz, htmlSample)
}))
defer ts.Close()
_, err := LoadURL(ts.URL)
if err != nil {
t.Fatal(err)
}
}
func TestLoadDoc(t *testing.T) {
tempHTMLdoc, err := ioutil.TempFile("", "sample_*.html")
if err != nil {
t.Fatal(err)
}
tempHTMLFilename := tempHTMLdoc.Name()
defer func(tempHTMLdoc *os.File, filename string) {
tempHTMLdoc.Close()
os.Remove(filename)
}(tempHTMLdoc, tempHTMLFilename)
tempHTMLdoc.Write([]byte(htmlSample))
if _, err := LoadDoc(tempHTMLFilename); err != nil {
t.Fatal(err)
}
}
func TestNavigator(t *testing.T) {
top := FindOne(testDoc, "//html")
nav := &NodeNavigator{curr: top, root: top, attr: -1}
nav.MoveToChild() // HEAD
nav.MoveToNext()
if nav.NodeType() != xpath.TextNode {
t.Fatalf("expectd node type is TextNode,but got %vs", nav.NodeType())
}
nav.MoveToNext() // <BODY>
if nav.Value() != InnerText(FindOne(testDoc, "//body")) {
t.Fatal("body not equal")
}
nav.MoveToPrevious() //
nav.MoveToParent() //<HTML>
if nav.curr != top {
t.Fatal("current node is not html node")
}
nav.MoveToNextAttribute()
if nav.LocalName() != "lang" {
t.Fatal("node not move to lang attribute")
}
nav.MoveToParent()
nav.MoveToFirst() // <!DOCTYPE html>
if nav.curr.Type != html.DoctypeNode {
t.Fatalf("expected node type is DoctypeNode,but got %d", nav.curr.Type)
}
}
func TestXPath(t *testing.T) {
node := FindOne(testDoc, "//html")
if SelectAttr(node, "lang") != "en-US" {
t.Fatal("//html[@lang] != en-Us")
}
node = FindOne(testDoc, "//header")
if strings.Index(InnerText(node), "Logo") > 0 {
t.Fatal("InnerText() have comment node text")
}
if !strings.Contains(OutputHTML(node, true), "Logo") {
t.Fatal("OutputHTML() shoud have comment node text")
}
link := FindOne(testDoc, "//a[1]/@href")
if link == nil {
t.Fatal("link is nil")
}
if v := InnerText(link); v != "/London" {
t.Fatalf("expect value is /London, but got %s", v)
}
}
func TestXPathCdUp(t *testing.T) {
doc := loadHTML(`<html><b attr="1"></b></html>`)
node := FindOne(doc, "//b/@attr/..")
t.Logf("node = %#v", node)
if node == nil || node.Data != "b" {
t.Fatal("//b/@id/.. != <b></b>")
}
}
func TestConcurrentQuery(t *testing.T) {
var wg sync.WaitGroup
for i := 0; i < 10; i++ {
wg.Add(1)
go func(i int) {
defer wg.Done()
s := `<html><head></head><body><div>a</div></body>`
doc := loadHTML(s)
if n := FindOne(doc, `//div`); n == nil {
t.Fatalf("should find one but got nil [%d]", i)
}
}(i)
}
wg.Wait()
}
func loadHTML(str string) *html.Node {
node, err := Parse(strings.NewReader(str))
if err != nil {
panic(err)
}
return node
}