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// Copyright 2015 Brett Vickers.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package etree
import "testing"
var testXML = `
<?xml version="1.0" encoding="UTF-8"?>
<bookstore xmlns:p="urn:books-com:prices">
<!Directive>
<book category="COOKING">
<title lang="en">Everyday Italian</title>
<author>Giada De Laurentiis</author>
<year>2005</year>
<p:price>30.00</p:price>
<editor>Clarkson Potter</editor>
</book>
<book category="CHILDREN">
<title lang="en" sku="150">Harry Potter</title>
<author>J K. Rowling</author>
<year>2005</year>
<p:price>29.99</p:price>
<editor></editor>
<editor/>
</book>
<book category="WEB">
<title lang="en">XQuery Kick Start</title>
<author>James McGovern</author>
<author>Per Bothner</author>
<author>Kurt Cagle</author>
<author>James Linn</author>
<author>Vaidyanathan Nagarajan</author>
<year>2003</year>
<p:price>49.99</p:price>
<editor>
</editor>
</book>
<!-- Final book -->
<book category="WEB" path="/books/xml">
<title lang="en">Learning XML</title>
<author>Erik T. Ray</author>
<year>2003</year>
<p:price>39.95</p:price>
</book>
</bookstore>
`
type test struct {
path string
result interface{}
}
type errorResult string
var tests = []test{
// basic queries
{"./bookstore/book/title", []string{"Everyday Italian", "Harry Potter", "XQuery Kick Start", "Learning XML"}},
{"./bookstore/book/author", []string{"Giada De Laurentiis", "J K. Rowling", "James McGovern", "Per Bothner", "Kurt Cagle", "James Linn", "Vaidyanathan Nagarajan", "Erik T. Ray"}},
{"./bookstore/book/year", []string{"2005", "2005", "2003", "2003"}},
{"./bookstore/book/p:price", []string{"30.00", "29.99", "49.99", "39.95"}},
{"./bookstore/book/isbn", nil},
// descendant queries
{"//title", []string{"Everyday Italian", "Harry Potter", "XQuery Kick Start", "Learning XML"}},
{"//book/title", []string{"Everyday Italian", "Harry Potter", "XQuery Kick Start", "Learning XML"}},
{".//title", []string{"Everyday Italian", "Harry Potter", "XQuery Kick Start", "Learning XML"}},
{".//bookstore//title", []string{"Everyday Italian", "Harry Potter", "XQuery Kick Start", "Learning XML"}},
{".//book/title", []string{"Everyday Italian", "Harry Potter", "XQuery Kick Start", "Learning XML"}},
{".//p:price/.", []string{"30.00", "29.99", "49.99", "39.95"}},
{".//price", []string{"30.00", "29.99", "49.99", "39.95"}},
// positional queries
{"./bookstore/book[1]/title", "Everyday Italian"},
{"./bookstore/book[4]/title", "Learning XML"},
{"./bookstore/book[5]/title", nil},
{"./bookstore/book[3]/author[0]", "James McGovern"},
{"./bookstore/book[3]/author[1]", "James McGovern"},
{"./bookstore/book[3]/author[3]/./.", "Kurt Cagle"},
{"./bookstore/book[3]/author[6]", nil},
{"./bookstore/book[-1]/title", "Learning XML"},
{"./bookstore/book[-4]/title", "Everyday Italian"},
{"./bookstore/book[-5]/title", nil},
// text queries
{"./bookstore/book[author='James McGovern']/title", "XQuery Kick Start"},
{"./bookstore/book[author='Per Bothner']/title", "XQuery Kick Start"},
{"./bookstore/book[author='Kurt Cagle']/title", "XQuery Kick Start"},
{"./bookstore/book[author='James Linn']/title", "XQuery Kick Start"},
{"./bookstore/book[author='Vaidyanathan Nagarajan']/title", "XQuery Kick Start"},
{"//book[p:price='29.99']/title", "Harry Potter"},
{"//book[price='29.99']/title", "Harry Potter"},
{"//book/price[text()='29.99']", "29.99"},
{"//book/author[text()='Kurt Cagle']", "Kurt Cagle"},
{"//book/editor[text()]", []string{"Clarkson Potter", "\n\t\t"}},
// attribute queries
{"./bookstore/book[@category='WEB']/title", []string{"XQuery Kick Start", "Learning XML"}},
{"./bookstore/book[@path='/books/xml']/title", []string{"Learning XML"}},
{"./bookstore/book[@category='COOKING']/title[@lang='en']", "Everyday Italian"},
{"./bookstore/book/title[@lang='en'][@sku='150']", "Harry Potter"},
{"./bookstore/book/title[@lang='fr']", nil},
// parent queries
{"./bookstore/book[@category='COOKING']/title/../../book[4]/title", "Learning XML"},
// bad paths
{"/bookstore", errorResult("etree: paths cannot be absolute.")},
{"./bookstore/book[]", errorResult("etree: path contains an empty filter expression.")},
{"./bookstore/book[@category='WEB'", errorResult("etree: path has invalid filter [brackets].")},
{"./bookstore/book[@category='WEB]", errorResult("etree: path has mismatched filter quotes.")},
{"./bookstore/book[author]a", errorResult("etree: path has invalid filter [brackets].")},
}
func TestPath(t *testing.T) {
doc := NewDocument()
err := doc.ReadFromString(testXML)
if err != nil {
t.Error(err)
}
for _, test := range tests {
path, err := CompilePath(test.path)
if err != nil {
if r, ok := test.result.(errorResult); !ok || err.Error() != string(r) {
fail(t, test)
}
continue
}
// Test both FindElementsPath and FindElementPath
element := doc.FindElementPath(path)
elements := doc.FindElementsPath(path)
switch s := test.result.(type) {
case errorResult:
fail(t, test)
case nil:
if element != nil || len(elements) != 0 {
fail(t, test)
}
case string:
if element == nil || element.Text() != s ||
len(elements) != 1 || elements[0].Text() != s {
fail(t, test)
}
case []string:
if element == nil || element.Text() != s[0] || len(elements) != len(s) {
fail(t, test)
continue
}
for i := 0; i < len(elements); i++ {
if elements[i].Text() != s[i] {
fail(t, test)
break
}
}
}
}
}
func fail(t *testing.T, test test) {
t.Errorf("etree: failed test '%s'\n", test.path)
}
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