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require "runit/testcase"
require "runit/cui/testrunner"
require "rexml/document"
class XPathTester < RUNIT::TestCase
include REXML
@@source = <<-EOF
<a id='1'>
<b id='2' x='y'>
<c id='3'/>
<c id='4'/>
</b>
<d id='5'>
<c id='6' x='y'/>
<c id='7'/>
<c id='8'/>
<q id='19'/>
</d>
<e id='9'>
<f id='10' a='b'/>
<f id='11' a='c'/>
<f id='12' a='d'>
<g id='13'/>
</f>
<f id='14' a='d'/>
</e>
<m id='15'>
<n id='16'>
<o id='17'>
<p id='18'/>
</o>
</n>
</m>
</a>
EOF
@@doc = Document.new @@source
def each_test( element, xpath, num_children )
count = 0
XPath::each( element, xpath ) { |child|
count += 1
yield child if block_given?
}
assert_equal num_children, count
end
def test_root
source = "<a><b/></a>"
doc = Document.new( source )
assert_equal "a", doc.root.name
assert_equal doc, XPath::first( doc, "/" )
end
def test_xpath
assert_equal "a", XPath::first(@@doc, "a").name
c = XPath::first( @@doc, "a/b/c" )
assert_equal "3", XPath::first(@@doc, "a/b/c").attributes["id"]
assert_equal "a", XPath::first(c, "/a").name
assert_equal "2", XPath::first(c, "/a/b").attributes["id"]
each_test( @@doc, nil, 1 )
each_test( @@doc.root, nil, 4 )
assert_equal "a", XPath::first(@@doc.root, ".").name
assert_equal "b", XPath::first(c, "..").name
assert_equal "a", XPath::first(@@doc, "a/b/..").name
assert_equal "11", XPath::first(@@doc, "a/e/f[@a='c']").attributes["id"]
assert_equal "11", XPath::first(@@doc, "a/e/[@a='c']").attributes["id"]
assert_equal "12", XPath::first(@@doc, "a/e/f[3]").attributes["id"]
assert_equal "13", XPath::first(@@doc, "a/e/f[3]/g").attributes["id"]
assert_equal "14", XPath::first(@@doc, "a/e/f[@a='d'][2]").attributes["id"]
assert_equal "14", XPath::first(@@doc, "a/e/f[@a='d'][@id='14']").attributes["id"]
each_test( @@doc, "//[name()='f' and @a='d']", 2) { |i|
assert_equal "f", i.name
}
each_test( @@doc, "//c", 5 ) { |child| assert_equal "c", child.name }
each_test( @@doc.root, "b//c", 2) { |child|
assert_equal "c", child.name
}
assert_equal "b", XPath::first( @@doc, "//b[@x]" ).name
#puts XPath::first( @@doc, "//b[@x]" )
end
def test_expressions
ems = [ Element.new("Sean") ]
assert_equal 0, REXML::XPath.predicate( ems, "[1>2]" ).size
assert_equal 1, REXML::XPath.predicate( ems, "[1<2]" ).size
assert_equal 1, REXML::XPath.predicate( ems, "['sean' = 'sean']" ).size
assert_equal 0, REXML::XPath.predicate( ems, "['monika' > 'sean']" ).size
assert_equal 1, REXML::XPath.predicate( ems, "[-1 < 0 and 'monika' < 'sean']" ).size
assert_equal 1, REXML::XPath.predicate( ems, "[-1 < 0 < 1]" ).size
end
def test_functions
# trivial text() test
source = "<a>text</a>"
element = Element.new SourceFactory.create_from(source)
res = XPath::first(element, "text()")
assert_equal "text", res.to_s
# confuse-a-function
source = "<a xmlns:duh='uri'>more <b id='1'/><duh:b id='2'>dumb</duh:b><b id='3'/><c/> text</a>"
element = Element.new SourceFactory.create_from(source)
res = ""
XPath::each(element, "text()") {|val| res << val.to_s}
assert_equal "more text", res
# This SHOULD fail
source = "<duh:b id='2'>dumb</b>"
assert_exception( REXML::ParseException,
"Should have gotten a missing end tag exception.") {
REXML::Document.new source
}
last_b = XPath::first(element, "b[@id='3']")
res = XPath::first(element, "b[last()]")
assert_equal last_b.attributes['id'], res.attributes['id']
res = XPath::first(element, "b[position()=3]")
assert_equal last_b.attributes['id'], res.attributes['id']
res = XPath::first(element, "[name()='c']")
assert_equal "c", res.name
res = XPath::first(element, "//[@id='2']")
assert_equal 'uri', res.namespace
res = XPath::first(element, "[namespace_uri()='uri']")
assert_equal '2', res.attributes['id']
end
def no_test_ancestor
doc = REXML::Document.new(File.new("test/testsrc.xml"))
doc.elements.each("//item") { |el| print el.name
if el.attributes['x']
puts " -- "+el.attributes['x']
else
puts
end
}
puts "####################################################"
doc.elements.each("//item/ancestor::") { |el| print el.name
if el.attributes['x']
puts " -- "+el.attributes['x']
else
puts
end
}
end
# Here are some XPath tests that were originally submitted by
# The code has changed some, but the logic and the source documents are the
# same.
# This method reads a document from a file, and then a series of xpaths,
# also from a file. It then checks each xpath against the source file.
def test_more
xmlsource = "test/testsrc.xml"
xpathtests = "test/xp.tst"
doc = REXML::Document.new(File.new(xmlsource))
#results = ""
results = REXML::Document.new
results.add_element "test-results"
for line in File.new(xpathtests)
line.strip!
begin
rt = doc.root
doc.elements.each(line) do |el|
results.root << el.clone
#results << el.to_s
end
rescue Exception => z
results.root.add_element( "error", {"path"=>line}).text = z.message+"\n"+z.backtrace[0,10].join("\n")
#results << "<error path='"+line+"'>"+z.message+"</error>"
end
end
results.elements.each("//error") { |el|
puts "\nERROR:\n\tPath: #{el.attributes['path']}\n\tMessage: #{el.text}"
}
assert_nil results.elements["//error"].name if results.elements["//error"]
end
def test_axe_descendant
assert_equal "f", XPath::first( @@doc, "descendant::f").name
assert_equal "11", XPath::first( @@doc, "descendant::f[@a='c']").attributes['id']
assert_equal "18", XPath::first( @@doc, "a/m//p" ).attributes['id']
each_test( @@doc, "descendant-or-self::[@x='y']", 2 )
end
def test_axe_parent
q = XPath.first( @@doc, "a/d/c/parent::/q" )
assert_equal 19, q.attributes["id"].to_i
end
def test_axe_self
c = XPath::first( @@doc, "a/b/c" )
assert_not_nil c
assert_equal "c", c.name
assert_equal "c", XPath::first( c, "self::" ).name
end
def test_axe_ancestor
doc = REXML::Document.new "
<a>
<b id='1'>
<c>
<b id='2'>
<d/>
</b>
</c>
</b>
</a>"
d = XPath.first( doc, "//d" )
b = each_test( d, "ancestor::b", 2 ) { |el|
assert((1..2) === el.attributes['id'].to_i, "Expected #{el.attributes['id']} to be either 1 or 2" )
}
end
def test_axe_child
m = XPath.first( @@doc, "a/child::m" )
assert_equal 15, m.attributes['id'].to_i
end
def test_axe_attribute
a = XPath.first( @@doc, "a/e/f[@id='14']/attribute::a" )
assert_equal "d", a
end
def test_axe_sibling
doc = Document.new "<a><b><c/></b><e><f id='10'/><f id='11'/><f id='12'/></e></a>"
next_f = XPath.first( doc, "a/e/f[@id='11']/following-sibling::" )
assert_equal 12, next_f.attributes['id'].to_i
prev_f = XPath.first( doc, "a/e/f[@id='11']/previous-sibling::" )
assert_equal 10, prev_f.attributes['id'].to_i
end
def test_lang
doc = Document.new(File.new("test/lang.xml"))
each_test( doc, "//language/*", 4 ) { |element|
#puts "#{element.name}: #{element.text}"
}
end
end
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