1 /* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
4
5 //! Tests for parsing and serialization of values/properties
6
7 use cssparser::{Parser, ParserInput};
8 use style::context::QuirksMode;
9 use style::parser::ParserContext;
10 use style::stylesheets::{CssRuleType, Origin};
11 use style_traits::{ParsingMode, ParseError};
12
parse<T, F>(f: F, s: &'static str) -> Result<T, ParseError<'static>> where F: for<'t> Fn(&ParserContext, &mut Parser<'static, 't>) -> Result<T, ParseError<'static>>13 fn parse<T, F>(f: F, s: &'static str) -> Result<T, ParseError<'static>>
14 where F: for<'t> Fn(&ParserContext, &mut Parser<'static, 't>) -> Result<T, ParseError<'static>> {
15 let mut input = ParserInput::new(s);
16 parse_input(f, &mut input)
17 }
18
parse_input<'i: 't, 't, T, F>(f: F, input: &'t mut ParserInput<'i>) -> Result<T, ParseError<'i>> where F: Fn(&ParserContext, &mut Parser<'i, 't>) -> Result<T, ParseError<'i>>19 fn parse_input<'i: 't, 't, T, F>(f: F, input: &'t mut ParserInput<'i>) -> Result<T, ParseError<'i>>
20 where F: Fn(&ParserContext, &mut Parser<'i, 't>) -> Result<T, ParseError<'i>> {
21 let url = ::servo_url::ServoUrl::parse("http://localhost").unwrap();
22 let context = ParserContext::new(Origin::Author, &url, Some(CssRuleType::Style),
23 ParsingMode::DEFAULT,
24 QuirksMode::NoQuirks);
25 let mut parser = Parser::new(input);
26 f(&context, &mut parser)
27 }
28
parse_entirely<T, F>(f: F, s: &'static str) -> Result<T, ParseError<'static>> where F: for<'t> Fn(&ParserContext, &mut Parser<'static, 't>) -> Result<T, ParseError<'static>>29 fn parse_entirely<T, F>(f: F, s: &'static str) -> Result<T, ParseError<'static>>
30 where F: for<'t> Fn(&ParserContext, &mut Parser<'static, 't>) -> Result<T, ParseError<'static>> {
31 let mut input = ParserInput::new(s);
32 parse_entirely_input(f, &mut input)
33 }
34
parse_entirely_input<'i: 't, 't, T, F>(f: F, input: &'t mut ParserInput<'i>) -> Result<T, ParseError<'i>> where F: Fn(&ParserContext, &mut Parser<'i, 't>) -> Result<T, ParseError<'i>>35 fn parse_entirely_input<'i: 't, 't, T, F>(f: F, input: &'t mut ParserInput<'i>) -> Result<T, ParseError<'i>>
36 where F: Fn(&ParserContext, &mut Parser<'i, 't>) -> Result<T, ParseError<'i>> {
37 parse_input(|context, parser| parser.parse_entirely(|p| f(context, p)), input)
38 }
39
40 // This is a macro so that the file/line information
41 // is preserved in the panic
42 macro_rules! assert_roundtrip_with_context {
43 ($fun:expr, $string:expr) => {
44 assert_roundtrip_with_context!($fun, $string, $string);
45 };
46 ($fun:expr, $input:expr, $output:expr) => {{
47 let mut input = ::cssparser::ParserInput::new($input);
48 let serialized = super::parse_input(|context, i| {
49 let parsed = $fun(context, i)
50 .expect(&format!("Failed to parse {}", $input));
51 let serialized = ToCss::to_css_string(&parsed);
52 assert_eq!(serialized, $output);
53 Ok(serialized)
54 }, &mut input).unwrap();
55
56 let mut input = ::cssparser::ParserInput::new(&serialized);
57 let unwrapped = super::parse_input(|context, i| {
58 let re_parsed = $fun(context, i)
59 .expect(&format!("Failed to parse serialization {}", $input));
60 let re_serialized = ToCss::to_css_string(&re_parsed);
61 assert_eq!(serialized, re_serialized);
62 Ok(())
63 }, &mut input).unwrap();
64 unwrapped
65 }}
66 }
67
68 macro_rules! assert_roundtrip {
69 ($fun:expr, $string:expr) => {
70 assert_roundtrip!($fun, $string, $string);
71 };
72 ($fun:expr, $input:expr, $output:expr) => {
73 let mut input = ParserInput::new($input);
74 let mut parser = Parser::new(&mut input);
75 let parsed = $fun(&mut parser)
76 .expect(&format!("Failed to parse {}", $input));
77 let serialized = ToCss::to_css_string(&parsed);
78 assert_eq!(serialized, $output);
79
80 let mut input = ParserInput::new(&serialized);
81 let mut parser = Parser::new(&mut input);
82 let re_parsed = $fun(&mut parser)
83 .expect(&format!("Failed to parse serialization {}", $input));
84 let re_serialized = ToCss::to_css_string(&re_parsed);
85 assert_eq!(serialized, re_serialized)
86 }
87 }
88
89 macro_rules! assert_parser_exhausted {
90 ($fun:expr, $string:expr, $should_exhausted:expr) => {{
91 parse(|context, input| {
92 let parsed = $fun(context, input);
93 assert_eq!(parsed.is_ok(), true);
94 assert_eq!(input.is_exhausted(), $should_exhausted);
95 Ok(())
96 }, $string).unwrap()
97 }}
98 }
99
100 macro_rules! parse_longhand {
101 ($name:ident, $s:expr) => {
102 parse($name::parse, $s).unwrap()
103 };
104 }
105
106 mod animation;
107 mod background;
108 mod border;
109 mod box_;
110 mod column;
111 mod effects;
112 mod font;
113 mod image;
114 mod inherited_text;
115 mod length;
116 mod outline;
117 mod position;
118 mod selectors;
119 mod supports;
120 mod text_overflow;
121 mod transition_duration;
122 mod transition_timing_function;
123 mod value;
124