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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use std::cell::RefCell;
use cssparser::SourceLocation;
use servo_arc::Arc;
use style::context::QuirksMode;
use style::error_reporting::{ContextualParseError, ParseErrorReporter};
use style::media_queries::MediaList;
use style::shared_lock::SharedRwLock;
use style::stylesheets::{AllowImportRules, Origin, Stylesheet, UrlExtraData};
use url::Url;
#[derive(Debug)]
struct CSSError {
pub url: Arc<Url>,
pub line: u32,
pub column: u32,
pub message: String,
}
struct TestingErrorReporter {
errors: RefCell<Vec<CSSError>>,
}
impl TestingErrorReporter {
pub fn new() -> Self {
TestingErrorReporter {
errors: RefCell::new(Vec::new()),
}
}
fn assert_messages_contain(&self, expected_errors: &[(u32, u32, &str)]) {
let errors = self.errors.borrow();
for (i, (error, &(line, column, message))) in errors.iter().zip(expected_errors).enumerate()
{
assert_eq!(
(error.line, error.column),
(line, column),
"line/column numbers of the {}th error: {:?}",
i + 1,
error.message
);
assert!(
error.message.contains(message),
"{:?} does not contain {:?}",
error.message,
message
);
}
if errors.len() < expected_errors.len() {
panic!("Missing errors: {:#?}", &expected_errors[errors.len()..]);
}
if errors.len() > expected_errors.len() {
panic!("Extra errors: {:#?}", &errors[expected_errors.len()..]);
}
}
}
impl ParseErrorReporter for TestingErrorReporter {
fn report_error(
&self,
url: &UrlExtraData,
location: SourceLocation,
error: ContextualParseError,
) {
self.errors.borrow_mut().push(CSSError {
url: url.0.clone(),
line: location.line,
column: location.column,
message: error.to_string(),
})
}
}
#[test]
fn test_report_error_stylesheet() {
let css = r"
div {
background-color: red;
display: invalid;
background-image: linear-gradient(0deg, black, invalid, transparent);
invalid: true;
}
@media (min-width: 10px invalid 1000px) {}
@font-face { src: url(), invalid, url(); }
@counter-style foo { symbols: a 0invalid b }
@font-feature-values Sans Sans { @foo {} @swash { foo: 1 invalid 2 } }
@invalid;
@media screen { @invalid; }
@supports (color: green) and invalid and (margin: 0) {}
@keyframes foo { from invalid {} to { margin: 0 invalid 0; } }
";
let url = Url::parse("about::test").unwrap();
let error_reporter = TestingErrorReporter::new();
let lock = SharedRwLock::new();
let media = Arc::new(lock.wrap(MediaList::empty()));
Stylesheet::from_str(
css,
url.clone().into(),
Origin::UserAgent,
media,
lock,
None,
Some(&error_reporter),
QuirksMode::NoQuirks,
AllowImportRules::Yes,
);
error_reporter.assert_messages_contain(&[
(
3,
18,
"Unsupported property declaration: 'display: invalid;'",
),
(
4,
43,
"Unsupported property declaration: 'background-image:",
), // FIXME: column should be around 56
(5, 17, "Unsupported property declaration: 'invalid: true;'"),
(7, 28, "Invalid media rule"),
// When @counter-style is supported, this should be replaced with two errors
(9, 19, "Invalid rule: '@counter-style "),
// When @font-feature-values is supported, this should be replaced with two errors
(10, 25, "Invalid rule: '@font-feature-values "),
(11, 13, "Invalid rule: '@invalid'"),
(12, 29, "Invalid rule: '@invalid'"),
(13, 34, "Invalid rule: '@supports "),
(14, 26, "Invalid keyframe rule: 'from invalid '"),
(
14,
52,
"Unsupported property declaration: 'margin: 0 invalid 0;'",
),
]);
assert_eq!(*error_reporter.errors.borrow()[0].url, url);
}
#[test]
fn test_no_report_unrecognized_vendor_properties() {
let css = r"
div {
-o-background-color: red;
_background-color: red;
-moz-background-color: red;
}
";
let url = Url::parse("about::test").unwrap();
let error_reporter = TestingErrorReporter::new();
let lock = SharedRwLock::new();
let media = Arc::new(lock.wrap(MediaList::empty()));
Stylesheet::from_str(
css,
url.into(),
Origin::UserAgent,
media,
lock,
None,
Some(&error_reporter),
QuirksMode::NoQuirks,
AllowImportRules::Yes,
);
error_reporter.assert_messages_contain(&[(
4,
31,
"Unsupported property declaration: '-moz-background-color: red;'",
)]);
}
#[test]
fn test_source_map_url() {
let tests = vec![
("", None),
(
"/*# sourceMappingURL=something */",
Some("something".to_string()),
),
];
for test in tests {
let url = Url::parse("about::test").unwrap();
let lock = SharedRwLock::new();
let media = Arc::new(lock.wrap(MediaList::empty()));
let stylesheet = Stylesheet::from_str(
test.0,
url.into(),
Origin::UserAgent,
media,
lock,
None,
None,
QuirksMode::NoQuirks,
AllowImportRules::Yes,
);
let url_opt = stylesheet.contents.source_map_url.read();
assert_eq!(*url_opt, test.1);
}
}
#[test]
fn test_source_url() {
let tests = vec![
("", None),
("/*# sourceURL=something */", Some("something".to_string())),
];
for test in tests {
let url = Url::parse("about::test").unwrap();
let lock = SharedRwLock::new();
let media = Arc::new(lock.wrap(MediaList::empty()));
let stylesheet = Stylesheet::from_str(
test.0,
url.into(),
Origin::UserAgent,
media,
lock,
None,
None,
QuirksMode::NoQuirks,
AllowImportRules::Yes,
);
let url_opt = stylesheet.contents.source_url.read();
assert_eq!(*url_opt, test.1);
}
}
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