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#![forbid(unsafe_code)]
extern crate xml;
#[macro_use]
extern crate lazy_static;
use std::env;
use std::fmt;
use std::fs::File;
use std::io::{BufRead, BufReader, Write, stderr};
use std::path::Path;
use xml::name::OwnedName;
use xml::common::Position;
use xml::reader::{Result, XmlEvent, ParserConfig, EventReader};
/// Dummy function that opens a file, parses it, and returns a `Result`.
/// There can be IO errors (from `File::open`) and XML errors (from the parser).
/// Having `impl From<std::io::Error> for xml::reader::Error` allows the user to
/// do this without defining their own error type.
#[allow(dead_code)]
fn count_event_in_file(name: &Path) -> Result<usize> {
let mut event_count = 0;
for event in EventReader::new(BufReader::new(try!(File::open(name)))) {
try!(event);
event_count += 1;
}
Ok(event_count)
}
#[test]
fn sample_1_short() {
test(
include_bytes!("documents/sample_1.xml"),
include_bytes!("documents/sample_1_short.txt"),
ParserConfig::new()
.ignore_comments(true)
.whitespace_to_characters(true)
.cdata_to_characters(true)
.trim_whitespace(true)
.coalesce_characters(true),
false
);
}
#[test]
fn sample_1_full() {
test(
include_bytes!("documents/sample_1.xml"),
include_bytes!("documents/sample_1_full.txt"),
ParserConfig::new()
.ignore_comments(false)
.whitespace_to_characters(false)
.cdata_to_characters(false)
.trim_whitespace(false)
.coalesce_characters(false),
false
);
}
#[test]
fn sample_2_short() {
test(
include_bytes!("documents/sample_2.xml"),
include_bytes!("documents/sample_2_short.txt"),
ParserConfig::new()
.ignore_comments(true)
.whitespace_to_characters(true)
.cdata_to_characters(true)
.trim_whitespace(true)
.coalesce_characters(true),
false
);
}
#[test]
fn sample_2_full() {
test(
include_bytes!("documents/sample_2.xml"),
include_bytes!("documents/sample_2_full.txt"),
ParserConfig::new()
.ignore_comments(false)
.whitespace_to_characters(false)
.cdata_to_characters(false)
.trim_whitespace(false)
.coalesce_characters(false),
false
);
}
#[test]
fn sample_3_short() {
test(
include_bytes!("documents/sample_3.xml"),
include_bytes!("documents/sample_3_short.txt"),
ParserConfig::new()
.ignore_comments(true)
.whitespace_to_characters(true)
.cdata_to_characters(true)
.trim_whitespace(true)
.coalesce_characters(true),
true
);
}
#[test]
fn sample_3_full() {
test(
include_bytes!("documents/sample_3.xml"),
include_bytes!("documents/sample_3_full.txt"),
ParserConfig::new()
.ignore_comments(false)
.whitespace_to_characters(false)
.cdata_to_characters(false)
.trim_whitespace(false)
.coalesce_characters(false),
true
);
}
#[test]
fn sample_4_short() {
test(
include_bytes!("documents/sample_4.xml"),
include_bytes!("documents/sample_4_short.txt"),
ParserConfig::new()
.ignore_comments(true)
.whitespace_to_characters(true)
.cdata_to_characters(true)
.trim_whitespace(true)
.coalesce_characters(true),
false
);
}
#[test]
fn sample_4_full() {
test(
include_bytes!("documents/sample_4.xml"),
include_bytes!("documents/sample_4_full.txt"),
ParserConfig::new()
.ignore_comments(false)
.whitespace_to_characters(false)
.cdata_to_characters(false)
.trim_whitespace(false)
.coalesce_characters(false),
false
);
}
#[test]
fn sample_5_short() {
test(
include_bytes!("documents/sample_5.xml"),
include_bytes!("documents/sample_5_short.txt"),
ParserConfig::new()
.ignore_comments(true)
.whitespace_to_characters(true)
.cdata_to_characters(true)
.trim_whitespace(true)
.coalesce_characters(true)
.add_entity("nbsp", " ")
.add_entity("copy", "©")
.add_entity("NotEqualTilde", "≂̸"),
false
);
}
#[test]
fn sample_6_full() {
test(
include_bytes!("documents/sample_6.xml"),
include_bytes!("documents/sample_6_full.txt"),
ParserConfig::new()
.ignore_root_level_whitespace(false)
.ignore_comments(false)
.whitespace_to_characters(false)
.cdata_to_characters(false)
.trim_whitespace(false)
.coalesce_characters(false),
false
);
}
#[test]
fn eof_1() {
test(
br#"<?xml"#,
br#"1:6 Unexpected end of stream: no root element found"#,
ParserConfig::new(),
false
);
}
#[test]
fn bad_1() {
test(
br#"<?xml&.,"#,
br#"1:6 Unexpected token: <?xml&"#,
ParserConfig::new(),
false
);
}
#[test]
fn dashes_in_comments() {
test(
br#"<!-- comment -- --><hello/>"#,
br#"
|1:14 Unexpected token '--' before ' '
"#,
ParserConfig::new(),
false
);
test(
br#"<!-- comment ---><hello/>"#,
br#"
|1:14 Unexpected token '--' before '-'
"#,
ParserConfig::new(),
false
);
}
#[test]
fn tabs_1() {
test(
b"\t<a>\t<b/></a>",
br#"
|1:2 StartDocument(1.0, UTF-8)
|1:2 StartElement(a)
|1:6 StartElement(b)
|1:6 EndElement(b)
|1:10 EndElement(a)
|1:14 EndDocument
"#,
ParserConfig::new()
.trim_whitespace(true),
true
);
}
#[test]
fn issue_32_unescaped_cdata_end() {
test(
br#"<hello>]]></hello>"#,
br#"
|StartDocument(1.0, UTF-8)
|StartElement(hello)
|Characters("]]>")
|EndElement(hello)
|EndDocument
"#,
ParserConfig::new(),
false
);
}
#[test]
fn issue_unescaped_processing_instruction_end() {
test(
br#"<hello>?></hello>"#,
br#"
|StartDocument(1.0, UTF-8)
|StartElement(hello)
|Characters("?>")
|EndElement(hello)
|EndDocument
"#,
ParserConfig::new(),
false
);
}
#[test]
fn issue_unescaped_empty_tag_end() {
test(
br#"<hello>/></hello>"#,
br#"
|StartDocument(1.0, UTF-8)
|StartElement(hello)
|Characters("/>")
|EndElement(hello)
|EndDocument
"#,
ParserConfig::new(),
false
);
}
#[test]
fn issue_83_duplicate_attributes() {
test(
br#"<hello><some-tag a='10' a="20"></hello>"#,
br#"
|StartDocument(1.0, UTF-8)
|StartElement(hello)
|1:30 Attribute 'a' is redefined
"#,
ParserConfig::new(),
false
);
}
#[test]
fn issue_93_large_characters_in_entity_references() {
test(
r#"<hello>&𤶼;</hello>"#.as_bytes(),
r#"
|StartDocument(1.0, UTF-8)
|StartElement(hello)
|1:10 Unexpected entity: 𤶼
"#.as_bytes(), // FIXME: it shouldn't be 10, looks like indices are off slightly
ParserConfig::new(),
false
)
}
#[test]
fn issue_98_cdata_ending_with_right_bracket() {
test(
br#"<hello><![CDATA[Foo [Bar]]]></hello>"#,
br#"
|StartDocument(1.0, UTF-8)
|StartElement(hello)
|CData("Foo [Bar]")
|EndElement(hello)
|EndDocument
"#,
ParserConfig::new(),
false
)
}
#[test]
fn issue_105_unexpected_double_dash() {
test(
br#"<hello>-- </hello>"#,
br#"
|StartDocument(1.0, UTF-8)
|StartElement(hello)
|Characters("-- ")
|EndElement(hello)
|EndDocument
"#,
ParserConfig::new(),
false
);
test(
br#"<hello>--</hello>"#,
br#"
|StartDocument(1.0, UTF-8)
|StartElement(hello)
|Characters("--")
|EndElement(hello)
|EndDocument
"#,
ParserConfig::new(),
false
);
test(
br#"<hello>--></hello>"#,
br#"
|StartDocument(1.0, UTF-8)
|StartElement(hello)
|Characters("-->")
|EndElement(hello)
|EndDocument
"#,
ParserConfig::new(),
false
);
test(
br#"<hello><![CDATA[--]]></hello>"#,
br#"
|StartDocument(1.0, UTF-8)
|StartElement(hello)
|CData("--")
|EndElement(hello)
|EndDocument
"#,
ParserConfig::new(),
false
);
}
#[test]
fn issue_attribues_have_no_default_namespace () {
test(
br#"<hello xmlns="urn:foo" x="y"/>"#,
br#"
|StartDocument(1.0, UTF-8)
|StartElement({urn:foo}hello [x="y"])
|EndElement({urn:foo}hello)
|EndDocument
"#,
ParserConfig::new(),
false
);
}
#[test]
fn issue_replacement_character_entity_reference() {
test(
br#"<doc>��</doc>"#,
br#"
|StartDocument(1.0, UTF-8)
|StartElement(doc)
|1:13 Invalid decimal character number in an entity: #55357
"#,
ParserConfig::new(),
false,
);
test(
br#"<doc>��</doc>"#,
br#"
|StartDocument(1.0, UTF-8)
|StartElement(doc)
|1:13 Invalid hexadecimal character number in an entity: #xd83d
"#,
ParserConfig::new(),
false,
);
test(
br#"<doc>��</doc>"#,
format!(
r#"
|StartDocument(1.0, UTF-8)
|StartElement(doc)
|Characters("{replacement_character}{replacement_character}")
|EndElement(doc)
|EndDocument
"#,
replacement_character = "\u{fffd}"
)
.as_bytes(),
ParserConfig::new()
.replace_unknown_entity_references(true),
false,
);
test(
br#"<doc>��</doc>"#,
format!(
r#"
|StartDocument(1.0, UTF-8)
|StartElement(doc)
|Characters("{replacement_character}{replacement_character}")
|EndElement(doc)
|EndDocument
"#,
replacement_character = "\u{fffd}"
)
.as_bytes(),
ParserConfig::new()
.replace_unknown_entity_references(true),
false,
);
}
lazy_static! {
// If PRINT_SPEC env variable is set, print the lines
// to stderr instead of comparing with the output
// it can be used like this:
// PRINT_SPEC=1 cargo test --test event_reader sample_1_full 2> sample_1_full.txt
static ref PRINT: bool = {
for (key, value) in env::vars() {
if key == "PRINT_SPEC" && value == "1" {
return true;
}
}
false
};
}
// clones a lot but that's fine
fn trim_until_bar(s: String) -> String {
match s.trim() {
ts if ts.starts_with('|') => return ts[1..].to_owned(),
_ => {}
}
s
}
fn test(input: &[u8], output: &[u8], config: ParserConfig, test_position: bool) {
let mut reader = config.create_reader(input);
let mut spec_lines = BufReader::new(output).lines()
.map(|line| line.unwrap())
.enumerate()
.map(|(i, line)| (i, trim_until_bar(line)))
.filter(|&(_, ref line)| !line.trim().is_empty());
loop {
let e = reader.next();
let line =
if test_position {
format!("{} {}", reader.position(), Event(&e))
} else {
format!("{}", Event(&e))
};
if *PRINT {
writeln!(&mut stderr(), "{}", line).unwrap();
} else {
if let Some((n, spec)) = spec_lines.next() {
if line != spec {
const SPLITTER: &'static str = "-------------------";
panic!("\n{}\nUnexpected event at line {}:\nExpected: {}\nFound: {}\n{}\n",
SPLITTER, n + 1, spec, line, std::str::from_utf8(output).unwrap());
}
} else {
panic!("Unexpected event: {}", line);
}
}
match e {
Ok(XmlEvent::EndDocument) | Err(_) => break,
_ => {},
}
}
}
// Here we define our own string representation of events so we don't depend
// on the specifics of Display implementation for XmlEvent and OwnedName.
struct Name<'a>(&'a OwnedName);
impl <'a> fmt::Display for Name<'a> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
if let Some(ref namespace) = self.0.namespace {
try! { write!(f, "{{{}}}", namespace) }
}
if let Some(ref prefix) = self.0.prefix {
try! { write!(f, "{}:", prefix) }
}
write!(f, "{}", self.0.local_name)
}
}
struct Event<'a>(&'a Result<XmlEvent>);
impl<'a> fmt::Display for Event<'a> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
let empty = String::new();
match *self.0 {
Ok(ref e) => match *e {
XmlEvent::StartDocument { ref version, ref encoding, .. } =>
write!(f, "StartDocument({}, {})", version, encoding),
XmlEvent::EndDocument =>
write!(f, "EndDocument"),
XmlEvent::ProcessingInstruction { ref name, ref data } =>
write!(f, "ProcessingInstruction({}={:?})", name,
data.as_ref().unwrap_or(&empty)),
XmlEvent::StartElement { ref name, ref attributes, .. } => {
if attributes.is_empty() {
write!(f, "StartElement({})", Name(name))
}
else {
let attrs: Vec<_> = attributes.iter()
.map(|a| format!("{}={:?}", Name(&a.name), a.value)) .collect();
write!(f, "StartElement({} [{}])", Name(name), attrs.join(", "))
}
},
XmlEvent::EndElement { ref name } =>
write!(f, "EndElement({})", Name(name)),
XmlEvent::Comment(ref data) =>
write!(f, r#"Comment("{}")"#, data.escape_debug()),
XmlEvent::CData(ref data) =>
write!(f, r#"CData("{}")"#, data.escape_debug()),
XmlEvent::Characters(ref data) =>
write!(f, r#"Characters("{}")"#, data.escape_debug()),
XmlEvent::Whitespace(ref data) =>
write!(f, r#"Whitespace("{}")"#, data.escape_debug()),
},
Err(ref e) => e.fmt(f),
}
}
}