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unmarshal_test.go
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unmarshal_test.go
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package goq
import (
"fmt"
"strconv"
"strings"
"testing"
"golang.org/x/net/html"
"github.com/PuerkitoBio/goquery"
"github.com/stretchr/testify/assert"
)
const testPage = `<!DOCTYPE html>
<html>
<head>
<title></title>
<meta charset="utf-8" />
</head>
<body>
<h1>
<ul id="resources">
<li class="resource" order="3">
<div class="name">Foo</div>
</li>
<li class="resource" order="1">
<div class="name">Bar</div>
</li>
<li class="resource" order="4">
<div class="name">Baz</div>
</li>
<li class="resource" order="2">
<div class="name">Bang</div>
</li>
<li class="resource" order="5">
<div class="name">Zip</div>
</li>
</ul>
<h2 id="anchor-header"><a href="https://foo.com">FOO!!!</a></h2>
</h1>
<ul id="structured-list">
<li name="foo" val="flip">foo</li>
<li name="bar" val="flip">bar</li>
<li name="baz" val="flip">baz</li>
</ul>
<ul id="nested-map">
<ul name="first">
<li name="foo">foo</li>
<li name="bar">bar</li>
<li name="baz">baz</li>
</ul>
<ul name="second">
<li name="bang">bang</li>
<li name="ring">ring</li>
<li name="fling">fling</li>
</ul>
</ul>
<div class="foobar">
<thing foo="yes">1</thing>
<foo arr="true">true</foo>
<bar arr="true">false</bar>
<float>1.2345</float>
<int>-123</int>
<uint>100</uint>
</div>
</body>
</html>
`
type Page struct {
Resources []Resource `goquery:"#resources .resource"`
FooBar FooBar
}
type Resource struct {
Name string `goquery:".name"`
}
type Attr struct {
Key, Value string
}
type FooBar struct {
Attrs []Attr
Val int
unmarshalWasCalled bool
}
type AttrSelectorTest struct {
Header H2 `goquery:"#anchor-header"`
}
type H2 struct {
Location string `goquery:"a,[href]"`
}
type sliceAttrSelector struct {
// For arrays/slices, type []primitive can use a source attribute
Things []bool `goquery:".foobar [arr=\"true\"],[arr]"`
}
func (f *FooBar) UnmarshalHTML(nodes []*html.Node) error {
f.unmarshalWasCalled = true
s := NodeSelector(nodes)
f.Attrs = []Attr{}
for _, node := range s.Find(".foobar thing").Nodes {
for _, attr := range node.Attr {
f.Attrs = append(f.Attrs, Attr{Key: attr.Key, Value: attr.Val})
}
}
thing := s.Find("thing")
thingText := thing.Text()
i, err := strconv.Atoi(thingText)
f.Val = i
return err
}
type ErrorFooBar struct{}
var errTestUnmarshal = fmt.Errorf("A wild error appeared")
func (e *ErrorFooBar) UnmarshalHTML([]*html.Node) error {
return errTestUnmarshal
}
var vals = []string{"Foo", "Bar", "Baz", "Bang", "Zip"}
func TestUnmarshal(t *testing.T) {
asrt := assert.New(t)
asrt.Implements((*Unmarshaler)(nil), new(FooBar))
var p Page
asrt.NoError(Unmarshal([]byte(testPage), &p))
asrt.Len(p.Resources, 5)
for i, val := range vals {
asrt.Equal(val, p.Resources[i].Name)
}
asrt.True(p.FooBar.unmarshalWasCalled, "Unmarshal should have been called.")
asrt.Equal(1, p.FooBar.Val)
asrt.Len(p.FooBar.Attrs, 1)
asrt.Equal("foo", p.FooBar.Attrs[0].Key)
asrt.Equal("yes", p.FooBar.Attrs[0].Value)
}
func TestArrayUnmarshal(t *testing.T) {
asrt := assert.New(t)
var a struct {
Resources [5]Resource `goquery:"#resources .resource"`
}
asrt.NoError(Unmarshal([]byte(testPage), &a))
for i, val := range vals {
asrt.Equal(val, a.Resources[i].Name)
}
}
func TestBoolean(t *testing.T) {
asrt := assert.New(t)
var a struct {
BoolTest struct {
Foo bool `goquery:"foo"`
Bar bool `goquery:"bar"`
} `goquery:".foobar"`
}
asrt.NoError(Unmarshal([]byte(testPage), &a))
asrt.Equal(true, a.BoolTest.Foo)
asrt.Equal(false, a.BoolTest.Bar)
}
func BenchmarkBoolean(b *testing.B) {
var a struct {
BoolTest struct {
Foo bool `goquery:"foo"`
Bar bool `goquery:"bar"`
} `goquery:".foobar"`
}
d, _ := goquery.NewDocumentFromReader(strings.NewReader(testPage))
for i := 0; i < b.N; i++ {
UnmarshalSelection(d.Selection, &a)
}
}
func TestNumbers(t *testing.T) {
asrt := assert.New(t)
var a struct {
BoolTest struct {
Int int `goquery:"int"`
Float float32 `goquery:"float"`
Uint uint16 `goquery:"uint"`
} `goquery:".foobar"`
}
asrt.NoError(Unmarshal([]byte(testPage), &a))
asrt.Equal(float32(1.2345), a.BoolTest.Float)
asrt.Equal(-123, a.BoolTest.Int)
asrt.Equal(uint16(100), a.BoolTest.Uint)
}
func checkErr(asrt *assert.Assertions, err error) *CannotUnmarshalError {
asrt.Error(err)
asrt.IsType((*CannotUnmarshalError)(nil), err)
return err.(*CannotUnmarshalError)
}
func TestUnmarshalError(t *testing.T) {
asrt := assert.New(t)
var a []ErrorFooBar
err := Unmarshal([]byte(testPage), &a)
asrt.Contains(err.Error(), "[]goq.ErrorFooBar[0]")
e := checkErr(asrt, err)
e2 := checkErr(asrt, e.Err)
asrt.Equal(errTestUnmarshal, e2.Err)
asrt.Equal(customUnmarshalError, e2.Reason)
}
func TestNilUnmarshal(t *testing.T) {
asrt := assert.New(t)
var a *Page
err := Unmarshal([]byte{}, a)
e := checkErr(asrt, err)
asrt.Equal(nilValue, e.Reason)
}
func TestNonPointer(t *testing.T) {
asrt := assert.New(t)
var a Page
e := checkErr(asrt, Unmarshal([]byte{}, a))
asrt.Equal(nonPointer, e.Reason)
}
func TestWrongArrayLength(t *testing.T) {
asrt := assert.New(t)
var a struct {
Resources [1]Resource `goquery:".resource"`
}
err := Unmarshal([]byte(testPage), &a)
e := checkErr(asrt, err)
asrt.Equal(typeConversionError, e.Reason)
e2 := checkErr(asrt, e.Err)
asrt.Equal(arrayLengthMismatch, e2.Reason)
asrt.Contains(e.Error(), "Resource")
asrt.Contains(e.Error(), "array length")
}
func TestInvalidLiteral(t *testing.T) {
asrt := assert.New(t)
var a struct {
Foo int `goquery:"foo"`
}
err := Unmarshal([]byte(testPage), &a)
e := checkErr(asrt, err).unwind()
asrt.Len(e.chain, 2)
asrt.Error(e.tail)
asrt.Contains(err.Error(), e.tail.Error())
asrt.Contains(err.Error(), "\"true\"")
asrt.Equal("true", e.val)
asrt.Equal(typeConversionError, e.chain[0].Reason)
asrt.Equal(typeConversionError, e.chain[1].Reason)
}
func TestInvalidArrayEleType(t *testing.T) {
asrt := assert.New(t)
var a struct {
Resources [5]int `goquery:".resource"`
}
err := Unmarshal([]byte(testPage), &a)
e := checkErr(asrt, err).unwind()
asrt.Len(e.chain, 3)
}
func TestAttributeSelector(t *testing.T) {
asrt := assert.New(t)
var a AttrSelectorTest
asrt.NoError(Unmarshal([]byte(testPage), &a))
asrt.Equal("https://foo.com", a.Header.Location)
}
func TestSliceAttrSelector(t *testing.T) {
asrt := assert.New(t)
var a sliceAttrSelector
asrt.NoError(Unmarshal([]byte(testPage), &a))
asrt.Len(a.Things, 2)
asrt.True(a.Things[0])
asrt.True(a.Things[1])
}
type MapTest struct {
// For map[primitive]primitive we use syntax selector,keySource,valSource
Names map[string]string `goquery:"#structured-list li,[name],[val]"`
// For map[primitive]Object we use the same syntax as a []primitive
Resources map[string]Resource `goquery:"#resources .resource,[order]"`
Nested map[string]map[string]string `goquery:"#nested-map,[name],[name],text"`
}
func TestMapQuery(t *testing.T) {
asrt := assert.New(t)
a := MapTest{}
asrt.NoError(Unmarshal([]byte(testPage), &a))
asrt.Len(a.Names, 3)
asrt.Equal("flip", a.Names["foo"])
asrt.Len(a.Resources, 5)
asrt.Len(a.Nested, 2)
asrt.Len(a.Nested["first"], 3)
asrt.Len(a.Nested["second"], 3)
}
func TestMapNonStringKey(t *testing.T) {
asrt := assert.New(t)
var a struct {
Map map[int]Resource `goquery:".resource,[order]"`
}
asrt.NoError(Unmarshal([]byte(testPage), &a))
asrt.Len(a.Map, 5)
asrt.Equal(a.Map[1].Name, "Bar")
}
func TestErroringKey(t *testing.T) {
asrt := assert.New(t)
var a struct {
Map map[ErrorFooBar]Resource `goquery:".resource,[order]"`
}
err := checkErr(asrt, Unmarshal([]byte(testPage), &a))
asrt.Equal(errTestUnmarshal, err.unwind().tail)
}
func TestDirectInsertion(t *testing.T) {
asrt := assert.New(t)
var a struct {
Nodes []*html.Node `goquery:"ul#resources .resource"`
}
asrt.NoError(Unmarshal([]byte(testPage), &a))
asrt.Len(a.Nodes, 5)
}
func TestInnerHtml(t *testing.T) {
asrt := assert.New(t)
var a struct {
HTML []string `goquery:"ul#resources .resource,html"`
}
asrt.NoError(Unmarshal([]byte(testPage), &a))
asrt.Len(a.HTML, 5)
asrt.Equal(a.HTML[0], `<div class="name">Foo</div>`)
}
func TestMapShortTag(t *testing.T) {
asrt := assert.New(t)
var a struct {
Names map[string]string `goquery:"#structured-list li,[name]"`
}
asrt.NoError(Unmarshal([]byte(testPage), &a))
asrt.Len(a.Names, 3)
// Test that we just use inner text when missing a value selector
asrt.Equal("foo", a.Names["foo"])
asrt.Equal("bar", a.Names["bar"])
}
func TestNoKeySelector(t *testing.T) {
asrt := assert.New(t)
var a struct {
Names map[string]string `goquery:"#structured-list li"`
}
err := checkErr(asrt, Unmarshal([]byte(testPage), &a))
asrt.Equal(missingValueSelector, err.unwind().last().Reason)
}
func TestMapInnerError(t *testing.T) {
asrt := assert.New(t)
var a struct {
Names map[string]ErrorFooBar `goquery:"#structured-list li,[name]"`
}
err := checkErr(asrt, Unmarshal([]byte(testPage), &a))
asrt.Equal(errTestUnmarshal, err.unwind().tail)
}
func TestInterfaceDecode(t *testing.T) {
asrt := assert.New(t)
var a struct {
IF interface{} `goquery:"#structured-list li"`
}
asrt.NoError(Unmarshal([]byte(testPage), &a))
asrt.Equal("foobarbaz", a.IF.(string))
}
const hnPage = `<html op="news"><head><meta name="referrer" content="origin"><meta name="viewport" content="width=device-width, initial-scale=1.0"><link rel="stylesheet" type="text/css" href="news.css?HLnf3vl4tF17hLCHxIT6">
<link rel="shortcut icon" href="favicon.ico">
<link rel="alternate" type="application/rss+xml" title="RSS" href="rss">
<title>Hacker News</title></head><body><center><table id="hnmain" border="0" cellpadding="0" cellspacing="0" width="85%" bgcolor="#f6f6ef">
<tr><td bgcolor="#ff6600"><table border="0" cellpadding="0" cellspacing="0" width="100%" style="padding:2px"><tr><td style="width:18px;padding-right:4px"><a href="http://www.ycombinator.com"><img src="y18.gif" width="18" height="18" style="border:1px white solid;"></a></td>
<td style="line-height:12pt; height:10px;"><span class="pagetop"><b class="hnname"><a href="news">Hacker News</a></b>
<a href="newest">new</a> | <a href="newcomments">comments</a> | <a href="show">show</a> | <a href="ask">ask</a> | <a href="jobs">jobs</a> | <a href="submit">submit</a> </span></td><td style="text-align:right;padding-right:4px;"><span class="pagetop">
<a href="login?goto=news">login</a>
</span></td>
</tr></table></td></tr>
<tr style="height:10px"></tr><tr><td><table border="0" cellpadding="0" cellspacing="0" class="itemlist">
<tr class='athing' id='13543927'>
<td align="right" valign="top" class="title"><span class="rank">1.</span></td> <td valign="top" class="votelinks"><center><a id='up_13543927' href='vote?id=13543927&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="https://medium.com/airbnb-engineering/introducing-lottie-4ff4a0afac0e" class="storylink">Introducing Lottie: Airbnb's tool for adding animations to native apps</a><span class="sitebit comhead"> (<a href="from?site=medium.com"><span class="sitestr">medium.com</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13543927">295 points</span> by <a href="user?id=dikaiosune" class="hnuser">dikaiosune</a> <span class="age"><a href="item?id=13543927">4 hours ago</a></span> <span id="unv_13543927"></span> | <a href="hide?id=13543927&goto=news">hide</a> | <a href="item?id=13543927">59 comments</a> </td></tr>
<tr class="spacer" style="height:5px"></tr>
<tr class='athing' id='13541679'>
<td align="right" valign="top" class="title"><span class="rank">2.</span></td> <td valign="top" class="votelinks"><center><a id='up_13541679' href='vote?id=13541679&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="item?id=13541679" class="storylink">Ask HN: Who is hiring? (February 2017)</a></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13541679">438 points</span> by <a href="user?id=whoishiring" class="hnuser">whoishiring</a> <span class="age"><a href="item?id=13541679">7 hours ago</a></span> <span id="unv_13541679"></span> | <a href="hide?id=13541679&goto=news">hide</a> | <a href="item?id=13541679">698 comments</a> </td></tr>
<tr class="spacer" style="height:5px"></tr>
<tr class='athing' id='13545330'>
<td align="right" valign="top" class="title"><span class="rank">3.</span></td> <td valign="top" class="votelinks"><center><a id='up_13545330' href='vote?id=13545330&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="https://www.bloomberg.com/news/articles/2017-02-01/apple-developing-new-mac-chip-in-test-of-intel-independence" class="storylink">Apple Said to Work on Mac Chip That Would Lessen Intel Role</a><span class="sitebit comhead"> (<a href="from?site=bloomberg.com"><span class="sitestr">bloomberg.com</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13545330">107 points</span> by <a href="user?id=VeXocide" class="hnuser">VeXocide</a> <span class="age"><a href="item?id=13545330">2 hours ago</a></span> <span id="unv_13545330"></span> | <a href="hide?id=13545330&goto=news">hide</a> | <a href="item?id=13545330">106 comments</a> </td></tr>
<tr class="spacer" style="height:5px"></tr>
<tr class='athing' id='13543233'>
<td align="right" valign="top" class="title"><span class="rank">4.</span></td> <td valign="top" class="votelinks"><center><a id='up_13543233' href='vote?id=13543233&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="https://www.opensourcery.co.za/2017/01/05/the-jvm-is-not-that-heavy/" class="storylink">The JVM is not that heavy</a><span class="sitebit comhead"> (<a href="from?site=opensourcery.co.za"><span class="sitestr">opensourcery.co.za</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13543233">235 points</span> by <a href="user?id=khy" class="hnuser">khy</a> <span class="age"><a href="item?id=13543233">5 hours ago</a></span> <span id="unv_13543233"></span> | <a href="hide?id=13543233&goto=news">hide</a> | <a href="item?id=13543233">151 comments</a> </td></tr>
<tr class="spacer" style="height:5px"></tr>
<tr class='athing' id='13545564'>
<td align="right" valign="top" class="title"><span class="rank">5.</span></td> <td valign="top" class="votelinks"><center><a id='up_13545564' href='vote?id=13545564&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="http://petrolicious.com/apartment-find-this-ferrari-250-gt-pf-coupe-was-hidden-in-hollywood-for-decades" class="storylink">This Ferrari 250 GT PF Coupe Was Hidden in a Hollywood Apartment for Decades</a><span class="sitebit comhead"> (<a href="from?site=petrolicious.com"><span class="sitestr">petrolicious.com</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13545564">75 points</span> by <a href="user?id=6stringmerc" class="hnuser">6stringmerc</a> <span class="age"><a href="item?id=13545564">2 hours ago</a></span> <span id="unv_13545564"></span> | <a href="hide?id=13545564&goto=news">hide</a> | <a href="item?id=13545564">26 comments</a> </td></tr>
<tr class="spacer" style="height:5px"></tr>
<tr class='athing' id='13544491'>
<td align="right" valign="top" class="title"><span class="rank">6.</span></td> <td valign="top" class="votelinks"><center><a id='up_13544491' href='vote?id=13544491&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="https://blogs.msdn.microsoft.com/dotnet/2017/02/01/the-net-language-strategy/" class="storylink">The .NET Language Strategy</a><span class="sitebit comhead"> (<a href="from?site=microsoft.com"><span class="sitestr">microsoft.com</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13544491">140 points</span> by <a href="user?id=benaadams" class="hnuser">benaadams</a> <span class="age"><a href="item?id=13544491">3 hours ago</a></span> <span id="unv_13544491"></span> | <a href="hide?id=13544491&goto=news">hide</a> | <a href="item?id=13544491">108 comments</a> </td></tr>
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<td align="right" valign="top" class="title"><span class="rank">7.</span></td> <td valign="top" class="votelinks"><center><a id='up_13542587' href='vote?id=13542587&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="http://blog.2ndquadrant.com/dataloss-at-gitlab/" class="storylink">Data Loss at GitLab</a><span class="sitebit comhead"> (<a href="from?site=2ndquadrant.com"><span class="sitestr">2ndquadrant.com</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13542587">220 points</span> by <a href="user?id=umairshahid" class="hnuser">umairshahid</a> <span class="age"><a href="item?id=13542587">6 hours ago</a></span> <span id="unv_13542587"></span> | <a href="hide?id=13542587&goto=news">hide</a> | <a href="item?id=13542587">68 comments</a> </td></tr>
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<td align="right" valign="top" class="title"><span class="rank">8.</span></td> <td valign="top" class="votelinks"><center><a id='up_13543072' href='vote?id=13543072&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="https://play.google.com/store/apps/details?id=us.arrived.arrived" class="storylink">Show HN: Arrived – Stack Overflow for US Immigration</a><span class="sitebit comhead"> (<a href="from?site=play.google.com"><span class="sitestr">play.google.com</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13543072">159 points</span> by <a href="user?id=wjmclaugh" class="hnuser">wjmclaugh</a> <span class="age"><a href="item?id=13543072">6 hours ago</a></span> <span id="unv_13543072"></span> | <a href="hide?id=13543072&goto=news">hide</a> | <a href="item?id=13543072">62 comments</a> </td></tr>
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<tr class='athing' id='13541589'>
<td align="right" valign="top" class="title"><span class="rank">9.</span></td> <td valign="top" class="votelinks"><center><a id='up_13541589' href='vote?id=13541589&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="http://debrouwere.org/2017/02/01/unlearning-descriptive-statistics/" class="storylink">Unlearning descriptive statistics</a><span class="sitebit comhead"> (<a href="from?site=debrouwere.org"><span class="sitestr">debrouwere.org</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13541589">219 points</span> by <a href="user?id=stdbrouw" class="hnuser">stdbrouw</a> <span class="age"><a href="item?id=13541589">8 hours ago</a></span> <span id="unv_13541589"></span> | <a href="hide?id=13541589&goto=news">hide</a> | <a href="item?id=13541589">67 comments</a> </td></tr>
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<tr class='athing' id='13545310'>
<td align="right" valign="top" class="title"><span class="rank">10.</span></td> <td valign="top" class="votelinks"><center><a id='up_13545310' href='vote?id=13545310&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="http://www.economist.com/news/business/21716020-tech-firms-are-last-departing-their-see-no-evil-stance-society-and-politics" class="storylink">Tech firms are departing from their see-no-evil stance on society and politics</a><span class="sitebit comhead"> (<a href="from?site=economist.com"><span class="sitestr">economist.com</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13545310">28 points</span> by <a href="user?id=martincmartin" class="hnuser">martincmartin</a> <span class="age"><a href="item?id=13545310">2 hours ago</a></span> <span id="unv_13545310"></span> | <a href="hide?id=13545310&goto=news">hide</a> | <a href="item?id=13545310">2 comments</a> </td></tr>
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<td align="right" valign="top" class="title"><span class="rank">11.</span></td> <td valign="top" class="votelinks"><center><a id='up_13544752' href='vote?id=13544752&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="https://mgba.io/2014/12/28/classic-nes/" class="storylink">The Tactics That Certain GBA Cartridges Use to Defeat Emulation Software</a><span class="sitebit comhead"> (<a href="from?site=mgba.io"><span class="sitestr">mgba.io</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13544752">61 points</span> by <a href="user?id=kibwen" class="hnuser">kibwen</a> <span class="age"><a href="item?id=13544752">3 hours ago</a></span> <span id="unv_13544752"></span> | <a href="hide?id=13544752&goto=news">hide</a> | <a href="item?id=13544752">25 comments</a> </td></tr>
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<tr class='athing' id='13543827'>
<td align="right" valign="top" class="title"><span class="rank">12.</span></td> <td valign="top" class="votelinks"><center><a id='up_13543827' href='vote?id=13543827&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="http://blog.runkit.com/2017/02/01/stop-filing-bugs-file-a-container.html" class="storylink">Stop Filing Bugs, File a Container</a><span class="sitebit comhead"> (<a href="from?site=runkit.com"><span class="sitestr">runkit.com</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13543827">94 points</span> by <a href="user?id=tolmasky" class="hnuser">tolmasky</a> <span class="age"><a href="item?id=13543827">4 hours ago</a></span> <span id="unv_13543827"></span> | <a href="hide?id=13543827&goto=news">hide</a> | <a href="item?id=13543827">23 comments</a> </td></tr>
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<td align="right" valign="top" class="title"><span class="rank">13.</span></td> <td valign="top" class="votelinks"><center><a id='up_13545412' href='vote?id=13545412&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="https://github.com/FredKSchott/CoVim" class="storylink">Collaborative Editing for Vim</a><span class="sitebit comhead"> (<a href="from?site=github.com"><span class="sitestr">github.com</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13545412">22 points</span> by <a href="user?id=JepZ" class="hnuser">JepZ</a> <span class="age"><a href="item?id=13545412">2 hours ago</a></span> <span id="unv_13545412"></span> | <a href="hide?id=13545412&goto=news">hide</a> | <a href="item?id=13545412">4 comments</a> </td></tr>
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<tr class='athing' id='13539552'>
<td align="right" valign="top" class="title"><span class="rank">14.</span></td> <td valign="top" class="votelinks"><center><a id='up_13539552' href='vote?id=13539552&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="https://garbagecollected.org/2017/01/31/four-column-ascii/" class="storylink">Four Column ASCII</a><span class="sitebit comhead"> (<a href="from?site=garbagecollected.org"><span class="sitestr">garbagecollected.org</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13539552">432 points</span> by <a href="user?id=nishs" class="hnuser">nishs</a> <span class="age"><a href="item?id=13539552">14 hours ago</a></span> <span id="unv_13539552"></span> | <a href="hide?id=13539552&goto=news">hide</a> | <a href="item?id=13539552">54 comments</a> </td></tr>
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<tr class='athing' id='13546231'>
<td align="right" valign="top" class="title"><span class="rank">15.</span></td> <td valign="top" class="votelinks"><center><a id='up_13546231' href='vote?id=13546231&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="https://github.com/akelleh/causality" class="storylink" rel="nofollow">Causal inference in python</a><span class="sitebit comhead"> (<a href="from?site=github.com"><span class="sitestr">github.com</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13546231">10 points</span> by <a href="user?id=aleyan" class="hnuser">aleyan</a> <span class="age"><a href="item?id=13546231">1 hour ago</a></span> <span id="unv_13546231"></span> | <a href="hide?id=13546231&goto=news">hide</a> | <a href="item?id=13546231">discuss</a> </td></tr>
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<tr class='athing' id='13546090'>
<td align="right" valign="top" class="title"><span class="rank">16.</span></td> <td></td><td class="title"><a href="https://boards.greenhouse.io/bright/jobs/549319#.WJJb_bYrJbU" class="storylink" rel="nofollow">Bright (W15 – developing countries solar) is hiring its first front-end eng (SF)</a><span class="sitebit comhead"> (<a href="from?site=greenhouse.io"><span class="sitestr">greenhouse.io</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="age"><a href="item?id=13546090">1 hour ago</a></span> | <a href="hide?id=13546090&goto=news">hide</a> </td></tr>
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<td align="right" valign="top" class="title"><span class="rank">17.</span></td> <td valign="top" class="votelinks"><center><a id='up_13541331' href='vote?id=13541331&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="http://www.nature.com/news/astronaut-twin-study-hints-at-stress-of-space-travel-1.21380" class="storylink">Scott Kelly's DNA shows unexpected telomere lengthening after year in space</a><span class="sitebit comhead"> (<a href="from?site=nature.com"><span class="sitestr">nature.com</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13541331">132 points</span> by <a href="user?id=ramzyo" class="hnuser">ramzyo</a> <span class="age"><a href="item?id=13541331">8 hours ago</a></span> <span id="unv_13541331"></span> | <a href="hide?id=13541331&goto=news">hide</a> | <a href="item?id=13541331">49 comments</a> </td></tr>
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<td align="right" valign="top" class="title"><span class="rank">18.</span></td> <td valign="top" class="votelinks"><center><a id='up_13539767' href='vote?id=13539767&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="https://medium.com/@squeaky_pl/million-requests-per-second-with-python-95c137af319#.3eiek12me" class="storylink">Million requests per second with Python</a><span class="sitebit comhead"> (<a href="from?site=medium.com"><span class="sitestr">medium.com</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13539767">371 points</span> by <a href="user?id=d_theorist" class="hnuser">d_theorist</a> <span class="age"><a href="item?id=13539767">13 hours ago</a></span> <span id="unv_13539767"></span> | <a href="hide?id=13539767&goto=news">hide</a> | <a href="item?id=13539767">134 comments</a> </td></tr>
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<tr class='athing' id='13544871'>
<td align="right" valign="top" class="title"><span class="rank">19.</span></td> <td valign="top" class="votelinks"><center><a id='up_13544871' href='vote?id=13544871&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="http://variety.com/2017/digital/news/facebook-oculus-zenimax-decision-1201975648/" class="storylink">Facebook Ordered to Pay $500M in Oculus Lawsuit</a><span class="sitebit comhead"> (<a href="from?site=variety.com"><span class="sitestr">variety.com</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13544871">135 points</span> by <a href="user?id=_pius" class="hnuser">_pius</a> <span class="age"><a href="item?id=13544871">3 hours ago</a></span> <span id="unv_13544871"></span> | <a href="hide?id=13544871&goto=news">hide</a> | <a href="item?id=13544871">75 comments</a> </td></tr>
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<tr class='athing' id='13541038'>
<td align="right" valign="top" class="title"><span class="rank">20.</span></td> <td valign="top" class="votelinks"><center><a id='up_13541038' href='vote?id=13541038&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="http://www.newyorker.com/business/currency/becoming-warren-buffett-the-man-not-the-investor?intcid=mod-latest" class="storylink">“Becoming Warren Buffett,” the Man, Not the Investor</a><span class="sitebit comhead"> (<a href="from?site=newyorker.com"><span class="sitestr">newyorker.com</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13541038">153 points</span> by <a href="user?id=artsandsci" class="hnuser">artsandsci</a> <span class="age"><a href="item?id=13541038">9 hours ago</a></span> <span id="unv_13541038"></span> | <a href="hide?id=13541038&goto=news">hide</a> | <a href="item?id=13541038">74 comments</a> </td></tr>
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<tr class='athing' id='13542735'>
<td align="right" valign="top" class="title"><span class="rank">21.</span></td> <td valign="top" class="votelinks"><center><a id='up_13542735' href='vote?id=13542735&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="https://motherboard.vice.com/en_us/article/big-data-cambridge-analytica-brexit-trump" class="storylink">Cambridge Analytica: The Data That Turned the World Upside Down</a><span class="sitebit comhead"> (<a href="from?site=vice.com"><span class="sitestr">vice.com</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13542735">99 points</span> by <a href="user?id=lakeeffect" class="hnuser">lakeeffect</a> <span class="age"><a href="item?id=13542735">6 hours ago</a></span> <span id="unv_13542735"></span> | <a href="hide?id=13542735&goto=news">hide</a> | <a href="item?id=13542735">45 comments</a> </td></tr>
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<tr class='athing' id='13542294'>
<td align="right" valign="top" class="title"><span class="rank">22.</span></td> <td valign="top" class="votelinks"><center><a id='up_13542294' href='vote?id=13542294&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="http://www.unofficialgoogledatascience.com/2017/01/causality-in-machine-learning.html" class="storylink">Causality in machine learning</a><span class="sitebit comhead"> (<a href="from?site=unofficialgoogledatascience.com"><span class="sitestr">unofficialgoogledatascience.com</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13542294">61 points</span> by <a href="user?id=maverick_iceman" class="hnuser">maverick_iceman</a> <span class="age"><a href="item?id=13542294">7 hours ago</a></span> <span id="unv_13542294"></span> | <a href="hide?id=13542294&goto=news">hide</a> | <a href="item?id=13542294">17 comments</a> </td></tr>
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<tr class='athing' id='13544514'>
<td align="right" valign="top" class="title"><span class="rank">23.</span></td> <td valign="top" class="votelinks"><center><a id='up_13544514' href='vote?id=13544514&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="https://dolphin-emu.org/blog/2017/02/01/dolphin-progress-report-january-2017/" class="storylink">Dolphin Progress Report: January 2017</a><span class="sitebit comhead"> (<a href="from?site=dolphin-emu.org"><span class="sitestr">dolphin-emu.org</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13544514">53 points</span> by <a href="user?id=dEnigma" class="hnuser">dEnigma</a> <span class="age"><a href="item?id=13544514">3 hours ago</a></span> <span id="unv_13544514"></span> | <a href="hide?id=13544514&goto=news">hide</a> | <a href="item?id=13544514">7 comments</a> </td></tr>
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<tr class='athing' id='13541544'>
<td align="right" valign="top" class="title"><span class="rank">24.</span></td> <td valign="top" class="votelinks"><center><a id='up_13541544' href='vote?id=13541544&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="https://techcrunch.com/2017/02/01/tesla-motors-inc-is-now-officially-tesla-inc/" class="storylink">Tesla Motors, Inc. Is Now Officially Tesla, Inc</a><span class="sitebit comhead"> (<a href="from?site=techcrunch.com"><span class="sitestr">techcrunch.com</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13541544">168 points</span> by <a href="user?id=pearlsteinj" class="hnuser">pearlsteinj</a> <span class="age"><a href="item?id=13541544">8 hours ago</a></span> <span id="unv_13541544"></span> | <a href="hide?id=13541544&goto=news">hide</a> | <a href="item?id=13541544">72 comments</a> </td></tr>
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<tr class='athing' id='13539724'>
<td align="right" valign="top" class="title"><span class="rank">25.</span></td> <td valign="top" class="votelinks"><center><a id='up_13539724' href='vote?id=13539724&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="http://www.bbc.com/future/story/20170131-the-secret-to-living-a-meaningful-life" class="storylink">Living a Meaningful Life</a><span class="sitebit comhead"> (<a href="from?site=bbc.com"><span class="sitestr">bbc.com</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13539724">110 points</span> by <a href="user?id=bootload" class="hnuser">bootload</a> <span class="age"><a href="item?id=13539724">12 hours ago</a></span> <span id="unv_13539724"></span> | <a href="hide?id=13539724&goto=news">hide</a> | <a href="item?id=13539724">24 comments</a> </td></tr>
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<tr class='athing' id='13540214'>
<td align="right" valign="top" class="title"><span class="rank">26.</span></td> <td valign="top" class="votelinks"><center><a id='up_13540214' href='vote?id=13540214&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="http://introtodeeplearning.com/index.html" class="storylink">6.S191: Introduction to Deep Learning</a><span class="sitebit comhead"> (<a href="from?site=introtodeeplearning.com"><span class="sitestr">introtodeeplearning.com</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13540214">150 points</span> by <a href="user?id=seycombi" class="hnuser">seycombi</a> <span class="age"><a href="item?id=13540214">11 hours ago</a></span> <span id="unv_13540214"></span> | <a href="hide?id=13540214&goto=news">hide</a> | <a href="item?id=13540214">12 comments</a> </td></tr>
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<tr class='athing' id='13541162'>
<td align="right" valign="top" class="title"><span class="rank">27.</span></td> <td valign="top" class="votelinks"><center><a id='up_13541162' href='vote?id=13541162&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="https://andychase.me/mail/gigster-contract/" class="storylink">An Email Thread Between a Developer and Gigster</a><span class="sitebit comhead"> (<a href="from?site=andychase.me"><span class="sitestr">andychase.me</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13541162">667 points</span> by <a href="user?id=mfts0" class="hnuser">mfts0</a> <span class="age"><a href="item?id=13541162">9 hours ago</a></span> <span id="unv_13541162"></span> | <a href="hide?id=13541162&goto=news">hide</a> | <a href="item?id=13541162">230 comments</a> </td></tr>
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<tr class='athing' id='13546201'>
<td align="right" valign="top" class="title"><span class="rank">28.</span></td> <td valign="top" class="votelinks"><center><a id='up_13546201' href='vote?id=13546201&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="item?id=13546201" class="storylink">Ask HN: When and how should I release my open source tool?</a></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13546201">20 points</span> by <a href="user?id=flaque" class="hnuser">flaque</a> <span class="age"><a href="item?id=13546201">1 hour ago</a></span> <span id="unv_13546201"></span> | <a href="hide?id=13546201&goto=news">hide</a> | <a href="item?id=13546201">7 comments</a> </td></tr>
<tr class="spacer" style="height:5px"></tr>
<tr class='athing' id='13542428'>
<td align="right" valign="top" class="title"><span class="rank">29.</span></td> <td valign="top" class="votelinks"><center><a id='up_13542428' href='vote?id=13542428&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center></td><td class="title"><a href="http://www.fakenewschallenge.org/" class="storylink">Fake News Challenge</a><span class="sitebit comhead"> (<a href="from?site=fakenewschallenge.org"><span class="sitestr">fakenewschallenge.org</span></a>)</span></td></tr><tr><td colspan="2"></td><td class="subtext">
<span class="score" id="score_13542428">153 points</span> by <a href="user?id=phreeza" class="hnuser">phreeza</a> <span class="age"><a href="item?id=13542428">6 hours ago</a></span> <span id="unv_13542428"></span> | <a href="hide?id=13542428&goto=news">hide</a> | <a href="item?id=13542428">150 comments</a> </td></tr>
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<tr class='athing' id='13546354'>
<td align="right" valign="top" class="title">
<span class="rank">30.</span>
</td>
<td valign="top" class="votelinks">
<center><a id='up_13546354' href='vote?id=13546354&how=up&goto=news'><div class='votearrow' title='upvote'></div></a></center>
</td>
<td class="title">
<a href="http://crypto.stackexchange.com/questions/26336/sha512-faster-than-sha256" class="storylink">SHA-512 is 1.5x faster than SHA-256 on 64-bit platforms</a>
<span class="sitebit comhead"> (<a href="from?site=stackexchange.com"><span class="sitestr">stackexchange.com</span></a>)</span>
</td>
</tr>
<tr>
<td colspan="2"></td>
<td class="subtext">
<span class="score" id="score_13546354">7 points</span> by
<a href="user?id=steffenweber" class="hnuser">steffenweber</a>
<span class="age"><a href="item?id=13546354">51 minutes ago</a></span>
<span id="unv_13546354"></span>
|
<a href="hide?id=13546354&goto=news">hide</a>
|
<a href="item?id=13546354">discuss</a>
</td>
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<tr><td><img src="s.gif" height="10" width="0"><table width="100%" cellspacing="0" cellpadding="1"><tr><td bgcolor="#ff6600"></td></tr></table><br><center><span class="yclinks"><a href="newsguidelines.html">Guidelines</a>
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<input type="text" name="q" value="" size="17" autocorrect="off" spellcheck="false" autocapitalize="off" autocomplete="false"></form>
</center></td></tr> </table></center></body><script type='text/javascript' src='hn.js?HLnf3vl4tF17hLCHxIT6'></script></html>`
type page struct {
Items map[int]*item `goquery:".itemlist,[id]"`
}
type pageNoPtr struct {
Items map[int]item `goquery:".itemlist,[id]"`
}
type score int
func (s *score) UnmarshalHTML(nodes []*html.Node) error {
sel := NodeSelector(nodes)
num := strings.Split(sel.Text(), " ")[0]
if num == "" {
return nil
}
n, err := strconv.ParseInt(num, 10, 64)
if err != nil {
return err
}
*s = score(n)
return nil
}
type item struct {
Link string `goquery:".title a,[href]"`
Site string `goquery:".title .sitestr,text"`
Points score `goquery:"!Next,.score,text"`
}
func TestHNPage(t *testing.T) {
asrt := assert.New(t)
var p page
asrt.NoError(Unmarshal([]byte(hnPage), &p))
asrt.Len(p.Items, 30)
asrt.NotNil(p.Items[13546354])
i := p.Items[13546354]
asrt.Equal("http://crypto.stackexchange.com/questions/26336/sha512-faster-than-sha256", i.Link)
asrt.Equal("stackexchange.com", i.Site)
asrt.Equal(7, int(i.Points))
var p2 pageNoPtr
asrt.NoError(Unmarshal([]byte(hnPage), &p2))
asrt.Len(p2.Items, 30)
asrt.NotNil(p2.Items[13546354])
i2 := p2.Items[13546354]
asrt.Equal("http://crypto.stackexchange.com/questions/26336/sha512-faster-than-sha256", i2.Link)
asrt.Equal("stackexchange.com", i2.Site)
asrt.Equal(7, int(i2.Points))
}