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require "test/unit/testcase"
require "rexml/document"
class FunctionsTester < Test::Unit::TestCase
include REXML
def test_functions
# trivial text() test
# confuse-a-function
source = "<a>more <b id='1'/><b id='2'>dumb</b><b id='3'/><c/> text</a>"
doc = Document.new source
res = ""
XPath::each(doc.root, "text()") {|val| res << val.to_s}
assert_equal "more text", res
res = XPath::first(doc.root, "b[last()]")
assert_equal '3', res.attributes['id']
res = XPath::first(doc.root, "b[position()=2]")
assert_equal '2', res.attributes['id']
res = XPath::first(doc.root, "*[name()='c']")
assert_equal "c", res.name
end
# Contributed by Mike Stok
def test_starts_with
source = <<-EOF
<foo>
<a href="mailto:a@b.c">a@b.c</a>
<a href="http://www.foo.com">http://www.foo.com</a>
</foo>
EOF
doc = Document.new source
mailtos = doc.elements.to_a("//a[starts-with(@href, 'mailto:')]")
assert_equal 1, mailtos.size
assert_equal "mailto:a@b.c", mailtos[0].attributes['href']
ailtos = doc.elements.to_a("//a[starts-with(@href, 'ailto:')]")
assert_equal 0, ailtos.size
end
def test_string_length
doc = Document.new <<-EOF
<AAA>
<Q/>
<SSSS/>
<BB/>
<CCC/>
<DDDDDDDD/>
<EEEE/>
</AAA>
EOF
assert doc, "create doc"
set = doc.elements.to_a("//*[string-length(name()) = 3]")
assert_equal 2, set.size, "nodes with names length = 3"
set = doc.elements.to_a("//*[string-length(name()) < 3]")
assert_equal 2, set.size, "nodes with names length < 3"
set = doc.elements.to_a("//*[string-length(name()) > 3]")
assert_equal 3, set.size, "nodes with names length > 3"
end
# Test provided by Mike Stok
def test_contains
source = <<-EOF
<foo>
<a href="mailto:a@b.c">a@b.c</a>
<a href="http://www.foo.com">http://www.foo.com</a>
</foo>
EOF
doc = Document.new source
[['o', 2], ['foo', 1], ['bar', 0]].each { |test|
search, expected = test
set = doc.elements.to_a("//a[contains(@href, '#{search}')]")
assert_equal expected, set.size
}
end
# Mike Stok and Sean Russell
def test_substring
# examples from http://www.w3.org/TR/xpath#function-substring
doc = Document.new('<test string="12345" />')
d = Document.new("<a b='1'/>")
#puts XPath.first(d, 'node()[0 + 1]')
#d = Document.new("<a b='1'/>")
#puts XPath.first(d, 'a[0 mod 0]')
[ [1.5, 2.6, '234'],
[0, 3, '12'],
[0, '0 div 0', ''],
[1, '0 div 0', ''],
['-42', '1 div 0', '12345'],
['-1 div 0', '1 div 0', '']
].each { |start, length, expected|
set = doc.elements.to_a("//test[substring(@string, #{start}, #{length}) = '#{expected}']")
assert_equal 1, set.size, "#{start}, #{length}, '#{expected}'"
}
end
def test_substring_angrez
testString = REXML::Functions::substring_after("helloworld","hello")
assert_equal( 'world', testString )
end
def test_translate
source = <<-EOF
<doc>
<case name='w3c one' result='BAr' /> <!-- w3c -->
<case name='w3c two' result='AAA' /> <!-- w3c -->
<case name='alchemy' result="gold" /> <!-- mike -->
<case name='vbxml one' result='A Space Odyssey' />
<case name='vbxml two' result='AbCdEf' />
</doc>
EOF
doc = Document.new(source)
[ ['bar', 'abc', 'ABC', 'w3c one'],
['--aaa--','abc-','ABC', 'w3c two'],
['lead', 'dear language', 'doll groover', 'alchemy'],
['A Space Odissei', 'i', 'y', 'vbxml one'],
['abcdefg', 'aceg', 'ACE', 'vbxml two'],
].each { |arg1, arg2, arg3, name|
translate = "translate('#{arg1}', '#{arg2}', '#{arg3}')"
set = doc.elements.to_a("//case[@result = #{translate}]")
assert_equal 1, set.size, translate
assert_equal name, set[0].attributes['name']
}
end
def test_name
d = REXML::Document.new("<a xmlns:x='foo'><b/><x:b/></a>")
assert_equal 1, d.root.elements.to_a('*[name() = "b"]').size
assert_equal 1, d.elements.to_a('//*[name() = "x:b"]').size
end
def test_local_name
d = REXML::Document.new("<a xmlns:x='foo'><b/><x:b/></a>")
assert_equal 2, d.root.elements.to_a('*[local_name() = "b"]').size
assert_equal 2, d.elements.to_a('//*[local_name() = "b"]').size
end
def test_substring2
doc = Document.new('<test string="12345" />')
assert_equal(1,doc.elements.to_a("//test[substring(@string,2)='2345']").size)
end
# Submitted by Kouhei
def test_floor_ceiling_round
source = "<a><b id='1'/><b id='2'/><b id='3'/></a>"
doc = REXML::Document.new(source)
id_1 = doc.elements["/a/b[@id='1']"]
id_2 = doc.elements["/a/b[@id='2']"]
id_3 = doc.elements["/a/b[@id='3']"]
good = {
"floor" => [[], [id_1], [id_2], [id_3]],
"ceiling" => [[id_1], [id_2], [id_3], []],
"round" => [[id_1], [id_2], [id_3], []]
}
good.each do |key, value|
(0..3).each do |i|
xpath = "//b[number(@id) = #{key}(#{i+0.5})]"
assert_equal(value[i], REXML::XPath.match(doc, xpath))
end
end
good["round"] = [[], [id_1], [id_2], [id_3]]
good.each do |key, value|
(0..3).each do |i|
xpath = "//b[number(@id) = #{key}(#{i+0.4})]"
assert_equal(value[i], REXML::XPath.match(doc, xpath))
end
end
end
# Submitted by Kou
def test_lang
d = Document.new(<<-XML)
<a xml:lang="en">
<b xml:lang="ja">
<c xml:lang="fr"/>
<d/>
<e xml:lang="ja-JP"/>
<f xml:lang="en-US"/>
</b>
</a>
XML
assert_equal(1, d.elements.to_a("//*[lang('fr')]").size)
assert_equal(3, d.elements.to_a("//*[lang('ja')]").size)
assert_equal(2, d.elements.to_a("//*[lang('en')]").size)
assert_equal(1, d.elements.to_a("//*[lang('en-us')]").size)
d = Document.new(<<-XML)
<root>
<para xml:lang="en"/>
<div xml:lang="en"><para/></div>
<para xml:lang="EN"/>
<para xml:lang="en-us"/>
</root>
XML
assert_equal(5, d.elements.to_a("//*[lang('en')]").size)
end
def test_ticket_60
document = REXML::Document.new("<a><b>A</b><b>1</b></a>")
assert_equal( "A", REXML::XPath.first(document, '//b[.="A"]').text )
assert_equal( "1", REXML::XPath.first(document, '//b[.="1"]').text )
end
def test_normalize_space
source = "<a><!--COMMENT A--><b><!-- COMMENT A --></b></a>"
doc = REXML::Document.new(source)
predicate = "string(.)=normalize_space('\nCOMMENT \n A \n\n ')"
m = REXML::XPath.match(doc, "//comment()[#{predicate}]")
assert_equal( [REXML::Comment.new("COMMENT A")], m )
end
end
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