func (s *BasicSuite) TestRootText(c *C) {
node, err := xmlpath.Parse(bytes.NewBuffer(trivialXml))
c.Assert(err, IsNil)
path := xmlpath.MustCompile("/")
result, ok := path.String(node)
c.Assert(ok, Equals, true)
c.Assert(result, Equals, "abcdefg")
}
func (s *BasicSuite) TestLibraryTable(c *C) {
node, err := xmlpath.Parse(bytes.NewBuffer(libraryXml))
c.Assert(err, IsNil)
for _, test := range libraryTable {
cmt := Commentf("xml path: %s", test.path)
path, err := xmlpath.Compile(test.path)
if want, ok := test.result.(cerror); ok {
c.Assert(err, ErrorMatches, string(want), cmt)
c.Assert(path, IsNil, cmt)
continue
}
c.Assert(err, IsNil)
switch want := test.result.(type) {
case string:
got, ok := path.String(node)
c.Assert(ok, Equals, true, cmt)
c.Assert(got, Equals, want, cmt)
c.Assert(path.Exists(node), Equals, true, cmt)
iter := path.Iter(node)
iter.Next()
node := iter.Node()
c.Assert(node.String(), Equals, want, cmt)
c.Assert(string(node.Bytes()), Equals, want, cmt)
case []string:
var alls []string
var allb []string
iter := path.Iter(node)
for iter.Next() {
alls = append(alls, iter.Node().String())
allb = append(allb, string(iter.Node().Bytes()))
}
c.Assert(alls, DeepEquals, want, cmt)
c.Assert(allb, DeepEquals, want, cmt)
s, sok := path.String(node)
b, bok := path.Bytes(node)
if len(want) == 0 {
c.Assert(sok, Equals, false, cmt)
c.Assert(bok, Equals, false, cmt)
c.Assert(s, Equals, "")
c.Assert(b, IsNil)
} else {
c.Assert(sok, Equals, true, cmt)
c.Assert(bok, Equals, true, cmt)
c.Assert(s, Equals, alls[0], cmt)
c.Assert(string(b), Equals, alls[0], cmt)
c.Assert(path.Exists(node), Equals, true, cmt)
}
case exists:
wantb := bool(want)
ok := path.Exists(node)
c.Assert(ok, Equals, wantb, cmt)
_, ok = path.String(node)
c.Assert(ok, Equals, wantb, cmt)
}
}
}
func (s *BasicSuite) BenchmarkSimplePathExists(c *C) {
node, err := xmlpath.Parse(bytes.NewBuffer(instancesXml))
c.Assert(err, IsNil)
path := xmlpath.MustCompile("/DescribeInstancesResponse/reservationSet/item/instancesSet/item/instanceType")
var exists bool
c.ResetTimer()
for i := 0; i < c.N; i++ {
exists = path.Exists(node)
}
c.StopTimer()
c.Assert(exists, Equals, true)
}
func (s *BasicSuite) BenchmarkSimplePathString(c *C) {
node, err := xmlpath.Parse(bytes.NewBuffer(instancesXml))
c.Assert(err, IsNil)
path := xmlpath.MustCompile("/DescribeInstancesResponse/reservationSet/item/instancesSet/item/instanceType")
var str string
c.ResetTimer()
for i := 0; i < c.N; i++ {
str, _ = path.String(node)
}
c.StopTimer()
c.Assert(str, Equals, "m1.small")
}
func getConfigValueFromXpath(path, xpath string) (string, error) {
file, err := os.Open(path + "/config.pvs")
if err != nil {
return "", err
}
xpathComp := xmlpath.MustCompile(xpath)
root, err := xmlpath.Parse(file)
if err != nil {
return "", err
}
value, _ := xpathComp.String(root)
return value, nil
}
func (s *BasicSuite) BenchmarkParse(c *C) {
for i := 0; i < c.N; i++ {
_, err := xmlpath.Parse(bytes.NewBuffer(instancesXml))
c.Assert(err, IsNil)
}
}