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parser.test.ts
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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
'use strict';
import * as assert from 'assert';
import { Parser } from '../../parser/cssParser';
import { TokenType } from '../../parser/cssScanner';
import * as nodes from '../../parser/cssNodes';
import { ParseError } from '../../parser/cssErrors';
export function assertNode(text: string, parser: Parser, f: (...args: any[]) => nodes.Node | null): nodes.Node {
const node = parser.internalParse(text, f)!;
assert.ok(node !== null, 'no node returned');
const markers = nodes.ParseErrorCollector.entries(node);
if (markers.length > 0) {
assert.ok(false, 'node has errors: ' + markers[0].getMessage() + ', offset: ' + markers[0].getNode().offset + ' when parsing ' + text);
}
assert.ok(parser.accept(TokenType.EOF), 'Expect scanner at EOF');
return node;
}
export function assertFunction(text: string, parser: Parser, f: () => nodes.Node | null): void {
assertNode(text, parser, f);
}
export function assertNoNode(text: string, parser: Parser, f: () => nodes.Node | null): void {
const node = parser.internalParse(text, f)!;
assert.ok(node === null || !parser.accept(TokenType.EOF));
}
export function assertError(text: string, parser: Parser, f: () => nodes.Node | null, error: nodes.IRule): void {
const node = parser.internalParse(text, f)!;
assert.ok(node !== null, 'no node returned');
let markers = nodes.ParseErrorCollector.entries(node);
if (markers.length === 0) {
assert.ok(false, 'no errors but error expected: ' + error.message);
} else {
markers = markers.sort((a, b) => { return a.getOffset() - b.getOffset(); });
assert.equal(markers[0].getRule().id, error.id, 'incorrect error returned from parsing: ' + text);
}
}
suite('CSS - Parser', () => {
test('stylesheet', function () {
const parser = new Parser();
assertNode('@charset "demo" ;', parser, parser._parseStylesheet.bind(parser));
assertNode('body { margin: 0px; padding: 3em, 6em; }', parser, parser._parseStylesheet.bind(parser));
assertNode('--> <!--', parser, parser._parseStylesheet.bind(parser));
assertNode('', parser, parser._parseStylesheet.bind(parser));
assertNode('<!-- --> @import "string"; <!-- -->', parser, parser._parseStylesheet.bind(parser));
assertNode('@media asdsa { } <!-- --> <!-- -->', parser, parser._parseStylesheet.bind(parser));
assertNode('@media screen, projection { }', parser, parser._parseStylesheet.bind(parser));
assertNode('@media screen and (max-width: 400px) { @-ms-viewport { width: 320px; }}', parser, parser._parseStylesheet.bind(parser));
assertNode('@-ms-viewport { width: 320px; height: 768px; }', parser, parser._parseStylesheet.bind(parser));
assertNode('#boo, far {} \n.far boo {}', parser, parser._parseStylesheet.bind(parser));
assertNode('@-moz-keyframes darkWordHighlight { from { background-color: inherit; } to { background-color: rgba(83, 83, 83, 0.7); } }', parser, parser._parseStylesheet.bind(parser));
assertNode('@page { margin: 2.5cm; }', parser, parser._parseStylesheet.bind(parser));
assertNode('@font-face { font-family: "Example Font"; }', parser, parser._parseStylesheet.bind(parser));
assertNode('@namespace "http://www.w3.org/1999/xhtml";', parser, parser._parseStylesheet.bind(parser));
assertNode('@namespace pref url(http://test);', parser, parser._parseStylesheet.bind(parser));
assertNode('@-moz-document url(http://test), url-prefix(http://www.w3.org/Style/) { body { color: purple; background: yellow; } }', parser, parser._parseStylesheet.bind(parser));
assertNode('E E[foo] E[foo="bar"] E[foo~="bar"] E[foo^="bar"] E[foo$="bar"] E[foo*="bar"] E[foo|="en"] {}', parser, parser._parseStylesheet.bind(parser));
assertNode('input[type=\"submit\"] {}', parser, parser._parseStylesheet.bind(parser));
assertNode('E:root E:nth-child(n) E:nth-last-child(n) E:nth-of-type(n) E:nth-last-of-type(n) E:first-child E:last-child {}', parser, parser._parseStylesheet.bind(parser));
assertNode('E:first-of-type E:last-of-type E:only-child E:only-of-type E:empty E:link E:visited E:active E:hover E:focus E:target E:lang(fr) E:enabled E:disabled E:checked {}', parser, parser._parseStylesheet.bind(parser));
assertNode('E::first-line E::first-letter E::before E::after {}', parser, parser._parseStylesheet.bind(parser));
assertNode('E.warning E#myid E:not(s) {}', parser, parser._parseStylesheet.bind(parser));
assertError('@namespace;', parser, parser._parseStylesheet.bind(parser), ParseError.URIExpected);
assertError('@namespace url(http://test)', parser, parser._parseStylesheet.bind(parser), ParseError.SemiColonExpected);
assertError('@charset;', parser, parser._parseStylesheet.bind(parser), ParseError.IdentifierExpected);
assertError('@charset \'utf8\'', parser, parser._parseStylesheet.bind(parser), ParseError.SemiColonExpected);
});
test('stylesheet - graceful handling of unknown rules', function () {
const parser = new Parser();
assertNode('@unknown-rule;', parser, parser._parseStylesheet.bind(parser));
assertNode(`@unknown-rule 'foo';`, parser, parser._parseStylesheet.bind(parser));
assertNode('@unknown-rule (foo) {}', parser, parser._parseStylesheet.bind(parser));
assertNode('@unknown-rule (foo) { .bar {} }', parser, parser._parseStylesheet.bind(parser));
assertNode('@mskeyframes darkWordHighlight { from { background-color: inherit; } to { background-color: rgba(83, 83, 83, 0.7); } }', parser, parser._parseStylesheet.bind(parser));
assertNode('foo { @unknown-rule; }', parser, parser._parseStylesheet.bind(parser));
assertError('@unknown-rule (;', parser, parser._parseStylesheet.bind(parser), ParseError.RightParenthesisExpected);
assertError('@unknown-rule [foo', parser, parser._parseStylesheet.bind(parser), ParseError.RightSquareBracketExpected);
assertError('@unknown-rule { [foo }', parser, parser._parseStylesheet.bind(parser), ParseError.RightSquareBracketExpected);
assertError('@unknown-rule (foo) {', parser, parser._parseStylesheet.bind(parser), ParseError.RightCurlyExpected);
assertError('@unknown-rule (foo) { .bar {}', parser, parser._parseStylesheet.bind(parser), ParseError.RightCurlyExpected);
});
test('stylesheet - unknown rules node ends properly. Microsoft/vscode#53159', function () {
const parser = new Parser();
const node = assertNode('@unknown-rule (foo) {} .foo {}', parser, parser._parseStylesheet.bind(parser));
const unknownAtRule = node.getChild(0)!;
assert.equal(unknownAtRule.type, nodes.NodeType.UnknownAtRule);
assert.equal(unknownAtRule.offset, 0);
assert.equal(node.getChild(0)!.length, 13);
// microsoft/vscode-css-languageservice#237
assertNode('.foo { @apply p-4 bg-neutral-50; min-height: var(--space-14); }', parser, parser._parseStylesheet.bind(parser));
});
test('stylesheet /panic/', function () {
const parser = new Parser();
assertError('#boo, far } \n.far boo {}', parser, parser._parseStylesheet.bind(parser), ParseError.LeftCurlyExpected);
assertError('#boo, far { far: 43px; \n.far boo {}', parser, parser._parseStylesheet.bind(parser), ParseError.RightCurlyExpected);
assertError('- @import "foo";', parser, parser._parseStylesheet.bind(parser), ParseError.RuleOrSelectorExpected);
});
test('@font-face', function () {
const parser = new Parser();
assertNode('@font-face {}', parser, parser._parseFontFace.bind(parser));
assertNode('@font-face { src: url(http://test) }', parser, parser._parseFontFace.bind(parser));
assertNode('@font-face { font-style: normal; font-stretch: normal; }', parser, parser._parseFontFace.bind(parser));
assertNode('@font-face { unicode-range: U+0021-007F }', parser, parser._parseFontFace.bind(parser));
assertError('@font-face { font-style: normal font-stretch: normal; }', parser, parser._parseFontFace.bind(parser), ParseError.SemiColonExpected);
});
test('@keyframe selector', function () {
const parser = new Parser();
assertNode('from {}', parser, parser._parseKeyframeSelector.bind(parser));
assertNode('to {}', parser, parser._parseKeyframeSelector.bind(parser));
assertNode('0% {}', parser, parser._parseKeyframeSelector.bind(parser));
assertNode('10% {}', parser, parser._parseKeyframeSelector.bind(parser));
assertNode('cover 10% {}', parser, parser._parseKeyframeSelector.bind(parser));
assertNode('100000% {}', parser, parser._parseKeyframeSelector.bind(parser));
assertNode('from { width: 100% }', parser, parser._parseKeyframeSelector.bind(parser));
assertNode('from { width: 100%; to: 10px; }', parser, parser._parseKeyframeSelector.bind(parser));
assertNode('from, to { width: 10px; }', parser, parser._parseKeyframeSelector.bind(parser));
assertNode('10%, to { width: 10px; }', parser, parser._parseKeyframeSelector.bind(parser));
assertNode('from, 20% { width: 10px; }', parser, parser._parseKeyframeSelector.bind(parser));
assertNode('10%, 20% { width: 10px; }', parser, parser._parseKeyframeSelector.bind(parser));
assertNode('cover 10% {}', parser, parser._parseKeyframeSelector.bind(parser));
assertNode('cover 10%, exit 20% {}', parser, parser._parseKeyframeSelector.bind(parser));
assertNode('10%, exit 20% {}', parser, parser._parseKeyframeSelector.bind(parser));
assertNode('from, exit 20% {}', parser, parser._parseKeyframeSelector.bind(parser));
assertNode('cover 10%, to {}', parser, parser._parseKeyframeSelector.bind(parser));
assertNode('cover 10%, 20% {}', parser, parser._parseKeyframeSelector.bind(parser));
});
test('@keyframe', function () {
const parser = new Parser();
assertNode('@keyframes name {}', parser, parser._parseKeyframe.bind(parser));
assertNode('@-webkit-keyframes name {}', parser, parser._parseKeyframe.bind(parser));
assertNode('@-o-keyframes name {}', parser, parser._parseKeyframe.bind(parser));
assertNode('@-moz-keyframes name {}', parser, parser._parseKeyframe.bind(parser));
assertNode('@keyframes name { from {} to {}}', parser, parser._parseKeyframe.bind(parser));
assertNode('@keyframes name { from {} 80% {} 100% {}}', parser, parser._parseKeyframe.bind(parser));
assertNode('@keyframes name { from { top: 0px; } 80% { top: 100px; } 100% { top: 50px; }}', parser, parser._parseKeyframe.bind(parser));
assertNode('@keyframes name { from { top: 0px; } 70%, 80% { top: 100px; } 100% { top: 50px; }}', parser, parser._parseKeyframe.bind(parser));
assertNode('@keyframes name { from { top: 0px; left: 1px; right: 2px }}', parser, parser._parseKeyframe.bind(parser));
assertNode('@keyframes name { exit 50% { top: 0px; left: 1px; right: 2px }}', parser, parser._parseKeyframe.bind(parser));
assertError('@keyframes name { from { top: 0px; left: 1px, right: 2px }}', parser, parser._parseKeyframe.bind(parser), ParseError.SemiColonExpected);
assertError('@keyframes )', parser, parser._parseKeyframe.bind(parser), ParseError.IdentifierExpected);
assertError('@keyframes name { { top: 0px; } }', parser, parser._parseKeyframe.bind(parser), ParseError.RightCurlyExpected);
assertError('@keyframes name { from, #123', parser, parser._parseKeyframe.bind(parser), ParseError.PercentageExpected);
assertError('@keyframes name { 10% from { top: 0px; } }', parser, parser._parseKeyframe.bind(parser), ParseError.LeftCurlyExpected);
assertError('@keyframes name { 10% 20% { top: 0px; } }', parser, parser._parseKeyframe.bind(parser), ParseError.LeftCurlyExpected);
assertError('@keyframes name { from to { top: 0px; } }', parser, parser._parseKeyframe.bind(parser), ParseError.LeftCurlyExpected);
});
test('@property', function () {
const parser = new Parser();
assertNode(`@property --my-color { syntax: '<color>'; inherits: false; initial-value: #c0ffee; }`, parser, parser._parseStylesheet.bind(parser));
assertError(`@property { }`, parser, parser._parseStylesheet.bind(parser), ParseError.IdentifierExpected);
});
test('@container', function () {
const parser = new Parser();
assertNode(`@container (width <= 150px) { #inner { background-color: skyblue; }}`, parser, parser._parseStylesheet.bind(parser));
assertNode(`@container card (inline-size > 30em) and style(--responsive: true) { }`, parser, parser._parseStylesheet.bind(parser));
assertNode(`@container card (inline-size > 30em) { @container style(--responsive: true) {} }`, parser, parser._parseStylesheet.bind(parser));
});
test('@starting-style', function () {
const parser = new Parser();
// These assertions would still hold if @starting-style blocks were being processed as unknown at-rules
// Parsing into the expected AST is instead tested in nodes.test.ts
assertNode(`@starting-style { p { background-color: skyblue; } }`, parser, parser._parseStylesheet.bind(parser));
assertNode(`p { @starting-style { background-color: skyblue; } }`, parser, parser._parseStylesheet.bind(parser));
assertNode(`p { @starting-style { @layer {} } }`, parser, parser._parseStylesheet.bind(parser));
});
test('@container query length units', function () {
const parser = new Parser();
assertNode(`@container (min-width: 700px) { .card h2 { font-size: max(1.5em, 1.23em + 2cqi); } }`, parser, parser._parseStylesheet.bind(parser));
});
test('@import', function () {
const parser = new Parser();
assertNode('@import "asdasdsa"', parser, parser._parseImport.bind(parser));
assertNode('@ImPort "asdsadsa"', parser, parser._parseImport.bind(parser));
assertNode('@import "asdasd" dsfsdf', parser, parser._parseImport.bind(parser));
assertNode('@import "foo";', parser, parser._parseStylesheet.bind(parser));
assertNode('@import url(/css/screen.css) screen, projection;', parser, parser._parseStylesheet.bind(parser));
assertNode('@import url(\'landscape.css\') screen and (orientation:landscape);', parser, parser._parseStylesheet.bind(parser));
assertNode('@import url("/inc/Styles/full.css") (min-width: 940px);', parser, parser._parseStylesheet.bind(parser));
assertNode('@import url(style.css) screen and (min-width:600px);', parser, parser._parseStylesheet.bind(parser));
assertNode('@import url("./700.css") only screen and (max-width: 700px);', parser, parser._parseStylesheet.bind(parser));
assertNode('@import url("override.css") layer;', parser, parser._parseStylesheet.bind(parser));
assertNode('@import url("tabs.css") layer(framework.component);', parser, parser._parseStylesheet.bind(parser));
assertNode('@import "mystyle.css" supports(display: flex);', parser, parser._parseStylesheet.bind(parser));
assertNode('@import url("narrow.css") supports(display: flex) handheld and (max-width: 400px);', parser, parser._parseStylesheet.bind(parser));
assertNode('@import url("fallback-layout.css") supports(not (display: flex));', parser, parser._parseStylesheet.bind(parser));
assertError('@import', parser, parser._parseStylesheet.bind(parser), ParseError.URIOrStringExpected);
});
test('@supports', function () {
const parser = new Parser();
assertNode('@supports ( display: flexbox ) { body { display: flexbox } }', parser, parser._parseSupports.bind(parser));
assertNode('@supports not (display: flexbox) { .outline { box-shadow: 2px 2px 2px black; /* unprefixed last */ } }', parser, parser._parseSupports.bind(parser));
assertNode('@supports ( box-shadow: 2px 2px 2px black ) or ( -moz-box-shadow: 2px 2px 2px black ) or ( -webkit-box-shadow: 2px 2px 2px black ) { }', parser, parser._parseSupports.bind(parser));
assertNode('@supports ((transition-property: color) or (animation-name: foo)) and (transform: rotate(10deg)) { }', parser, parser._parseSupports.bind(parser));
assertNode('@supports ((display: flexbox)) { }', parser, parser._parseSupports.bind(parser));
assertNode('@supports (display: flexbox !important) { }', parser, parser._parseSupports.bind(parser));
assertNode('@supports (grid-area: auto) { @media screen and (min-width: 768px) { .me { } } }', parser, parser._parseSupports.bind(parser));
assertNode('@supports (column-width: 1rem) OR (-moz-column-width: 1rem) OR (-webkit-column-width: 1rem) oR (-x-column-width: 1rem) { }', parser, parser._parseSupports.bind(parser)); // #49288
assertNode('@supports not (--validValue: , 0 ) {}', parser, parser._parseSupports.bind(parser)); // #82178
assertError('@supports (transition-property: color) or (animation-name: foo) and (transform: rotate(10deg)) { }', parser, parser._parseSupports.bind(parser), ParseError.LeftCurlyExpected);
assertError('@supports display: flexbox { }', parser, parser._parseSupports.bind(parser), ParseError.LeftParenthesisExpected);
});
test('@media', function () {
const parser = new Parser();
assertNode('@media asdsa { }', parser, parser._parseMedia.bind(parser));
assertNode('@meDia sadd{} ', parser, parser._parseMedia.bind(parser));
assertNode('@media somename, othername2 { }', parser, parser._parseMedia.bind(parser));
assertNode('@media only screen and (max-width:850px) { }', parser, parser._parseMedia.bind(parser));
assertNode('@media only screen and (max-width:850px) { }', parser, parser._parseMedia.bind(parser));
assertNode('@media all and (min-width:500px) { }', parser, parser._parseMedia.bind(parser));
assertNode('@media screen and (color), projection and (color) { }', parser, parser._parseMedia.bind(parser));
assertNode('@media not screen and (device-aspect-ratio: 16/9) { }', parser, parser._parseMedia.bind(parser));
assertNode('@media print and (min-resolution: 300dpi) { }', parser, parser._parseMedia.bind(parser));
assertNode('@media print and (min-resolution: 118dpcm) { }', parser, parser._parseMedia.bind(parser));
assertNode('@media print { @page { margin: 10% } blockquote, pre { page-break-inside: avoid } }', parser, parser._parseMedia.bind(parser));
assertNode('@media print { body:before { } }', parser, parser._parseMedia.bind(parser));
assertNode('@media not (-moz-os-version: windows-win7) { }', parser, parser._parseMedia.bind(parser));
assertNode('@media not (not (-moz-os-version: windows-win7)) { }', parser, parser._parseMedia.bind(parser));
assertNode('@media (height > 600px) { }', parser, parser._parseMedia.bind(parser));
assertNode('@media (height < 600px) { }', parser, parser._parseMedia.bind(parser));
assertNode('@media (height <= 600px) { }', parser, parser._parseMedia.bind(parser));
assertNode('@media (400px <= width <= 700px) { }', parser, parser._parseMedia.bind(parser));
assertNode('@media (400px >= width >= 700px) { }', parser, parser._parseMedia.bind(parser));
assertNode('@media screen and (750px <= width < 900px) { }', parser, parser._parseMedia.bind(parser));
assertError('@media somename othername2 { }', parser, parser._parseMedia.bind(parser), ParseError.LeftCurlyExpected);
assertError('@media not, screen { }', parser, parser._parseMedia.bind(parser), ParseError.MediaQueryExpected);
assertError('@media not screen and foo { }', parser, parser._parseMedia.bind(parser), ParseError.LeftParenthesisExpected);
assertError('@media not screen and () { }', parser, parser._parseMedia.bind(parser), ParseError.IdentifierExpected);
assertError('@media not screen and (color:) { }', parser, parser._parseMedia.bind(parser), ParseError.TermExpected);
assertError('@media not screen and (color:#234567 { }', parser, parser._parseMedia.bind(parser), ParseError.RightParenthesisExpected);
});
test('media_list', function () {
const parser = new Parser();
assertNode('somename', parser, parser._parseMediaQueryList.bind(parser));
assertNode('somename, othername', parser, parser._parseMediaQueryList.bind(parser));
assertNode('not all and (monochrome)', parser, parser._parseMediaQueryList.bind(parser));
});
test('medium', function () {
const parser = new Parser();
assertNode('somename', parser, parser._parseMedium.bind(parser));
assertNode('-asdas', parser, parser._parseMedium.bind(parser));
assertNode('-asda34s', parser, parser._parseMedium.bind(parser));
});
test('@page', function () {
const parser = new Parser();
assertNode('@page : name{ }', parser, parser._parsePage.bind(parser));
assertNode('@page :left, :right { }', parser, parser._parsePage.bind(parser));
assertNode('@page : name{ some : "asdas" }', parser, parser._parsePage.bind(parser));
assertNode('@page : name{ some : "asdas" !important }', parser, parser._parsePage.bind(parser));
assertNode('@page : name{ some : "asdas" !important; some : "asdas" !important }', parser, parser._parsePage.bind(parser));
assertNode('@page rotated { size : landscape }', parser, parser._parsePage.bind(parser));
assertNode('@page :left { margin-left: 4cm; margin-right: 3cm; }', parser, parser._parsePage.bind(parser));
assertNode('@page { @top-right-corner { content: url(foo.png); border: solid green; } }', parser, parser._parsePage.bind(parser));
assertNode('@page { @top-left-corner { content: " "; border: solid green; } @bottom-right-corner { content: counter(page); border: solid green; } }', parser, parser._parsePage.bind(parser));
assertError('@page { @top-left-corner foo { content: " "; border: solid green; } }', parser, parser._parsePage.bind(parser), ParseError.LeftCurlyExpected);
// assertError('@page { @XY foo { content: " "; border: solid green; } }', parser, parser._parsePage.bind(parser), ParseError.UnknownAtRule);
assertError('@page :left { margin-left: 4cm margin-right: 3cm; }', parser, parser._parsePage.bind(parser), ParseError.SemiColonExpected);
assertError('@page : { }', parser, parser._parsePage.bind(parser), ParseError.IdentifierExpected);
assertError('@page :left, { }', parser, parser._parsePage.bind(parser), ParseError.IdentifierExpected);
});
test('@layer', function () {
const parser = new Parser();
assertNode('@layer utilities { .padding-sm { padding: .5rem; } }', parser, parser._parseLayer.bind(parser));
assertNode('@layer utilities;', parser, parser._parseLayer.bind(parser));
assertNode('@layer theme, layout, utilities;', parser, parser._parseLayer.bind(parser));
assertNode('@layer utilities { p { margin-block: 1rem; } }', parser, parser._parseLayer.bind(parser));
assertNode('@layer framework { @layer layout { } }', parser, parser._parseLayer.bind(parser));
assertNode('@layer framework.layout { @keyframes slide-left {} }', parser, parser._parseLayer.bind(parser));
assertNode('@media (min-width: 30em) { @layer layout { } }', parser, parser._parseStylesheet.bind(parser));
assertError('@layer theme layout { }', parser, parser._parseLayer.bind(parser), ParseError.SemiColonExpected);
assertError('@layer theme, layout { }', parser, parser._parseLayer.bind(parser), ParseError.SemiColonExpected);
assertError('@layer framework .layout { }', parser, parser._parseLayer.bind(parser), ParseError.SemiColonExpected);
assertError('@layer framework. layout { }', parser, parser._parseLayer.bind(parser), ParseError.IdentifierExpected);
});
test('operator', function () {
const parser = new Parser();
assertNode('/', parser, parser._parseOperator.bind(parser));
assertNode('*', parser, parser._parseOperator.bind(parser));
assertNode('+', parser, parser._parseOperator.bind(parser));
assertNode('-', parser, parser._parseOperator.bind(parser));
});
test('combinator', function () {
const parser = new Parser();
assertNode('+', parser, parser._parseCombinator.bind(parser));
assertNode('+ ', parser, parser._parseCombinator.bind(parser));
assertNode('> ', parser, parser._parseCombinator.bind(parser));
assertNode('>', parser, parser._parseCombinator.bind(parser));
assertNode('>>>', parser, parser._parseCombinator.bind(parser));
assertNode('/deep/', parser, parser._parseCombinator.bind(parser));
assertNode(':host >>> .data-table { width: 100%; }', parser, parser._parseStylesheet.bind(parser));
assertError(':host >> .data-table { width: 100%; }', parser, parser._parseStylesheet.bind(parser), ParseError.LeftCurlyExpected);
});
test('unary_operator', function () {
const parser = new Parser();
assertNode('-', parser, parser._parseUnaryOperator.bind(parser));
assertNode('+', parser, parser._parseUnaryOperator.bind(parser));
});
test('property', function () {
const parser = new Parser();
assertNode('asdsa', parser, parser._parseProperty.bind(parser));
assertNode('asdsa334', parser, parser._parseProperty.bind(parser));
assertNode('--color', parser, parser._parseProperty.bind(parser));
assertNode('--primary-font', parser, parser._parseProperty.bind(parser));
assertNode('-color', parser, parser._parseProperty.bind(parser));
assertNode('somevar', parser, parser._parseProperty.bind(parser));
assertNode('some--let', parser, parser._parseProperty.bind(parser));
assertNode('somevar--', parser, parser._parseProperty.bind(parser));
});
test('ruleset', function () {
const parser = new Parser();
assertNode('name{ }', parser, parser._parseRuleset.bind(parser));
assertNode(' name\n{ some : "asdas" }', parser, parser._parseRuleset.bind(parser));
assertNode(' name{ some : "asdas" !important }', parser, parser._parseRuleset.bind(parser));
assertNode('name{ \n some : "asdas" !important; some : "asdas" }', parser, parser._parseRuleset.bind(parser));
assertNode('* {}', parser, parser._parseRuleset.bind(parser));
assertNode('.far{}', parser, parser._parseRuleset.bind(parser));
assertNode('boo {}', parser, parser._parseRuleset.bind(parser));
assertNode('.far #boo {}', parser, parser._parseRuleset.bind(parser));
assertNode('boo { prop: value }', parser, parser._parseRuleset.bind(parser));
assertNode('boo { prop: value; }', parser, parser._parseRuleset.bind(parser));
assertNode('boo { prop: value; prop: value }', parser, parser._parseRuleset.bind(parser));
assertNode('boo { prop: value; prop: value; }', parser, parser._parseRuleset.bind(parser));
assertNode('boo {--minimal: }', parser, parser._parseRuleset.bind(parser));
assertNode('boo {--minimal: ;}', parser, parser._parseRuleset.bind(parser));
assertNode('boo {--normal-text: red yellow green}', parser, parser._parseRuleset.bind(parser));
assertNode('boo {--normal-text: red yellow green;}', parser, parser._parseRuleset.bind(parser));
assertNode('boo {--important: red !important;}', parser, parser._parseRuleset.bind(parser));
assertNode('boo {--nested: {color: green;}}', parser, parser._parseRuleset.bind(parser));
assertNode('boo {--parens: this()is()ok()}', parser, parser._parseRuleset.bind(parser));
assertNode('boo {--squares: this[]is[]ok[]too[]}', parser, parser._parseRuleset.bind(parser));
assertNode('boo {--combined: ([{{[]()()}[]{}}])()}', parser, parser._parseRuleset.bind(parser));
assertNode('boo {--weird-inside-delims: {color: green;;;;;;!important;;}}', parser, parser._parseRuleset.bind(parser));
assertNode(`boo {--validValue: , 0 0}`, parser, parser._parseRuleset.bind(parser));
assertNode(`boo {--validValue: , 0 0;}`, parser, parser._parseRuleset.bind(parser));
assertError('boo, { }', parser, parser._parseRuleset.bind(parser), ParseError.SelectorExpected);
});
test('ruleset /Panic/', function () {
const parser = new Parser();
// assertNode('boo { : value }', parser, parser._parseRuleset.bind(parser));
assertError('boo { prop: ; }', parser, parser._parseRuleset.bind(parser), ParseError.PropertyValueExpected);
assertError('boo { prop }', parser, parser._parseRuleset.bind(parser), ParseError.ColonExpected);
assertError('boo { prop: ; far: 12em; }', parser, parser._parseRuleset.bind(parser), ParseError.PropertyValueExpected);
// assertNode('boo { prop: ; 1ar: 12em; }', parser, parser._parseRuleset.bind(parser));
assertError('boo { --too-minimal:}', parser, parser._parseRuleset.bind(parser), ParseError.PropertyValueExpected);
assertError('boo { --unterminated: ', parser, parser._parseRuleset.bind(parser), ParseError.RightCurlyExpected);
assertError('boo { --double-important: red !important !important;}', parser, parser._parseRuleset.bind(parser), ParseError.SemiColonExpected);
assertError('boo {--unbalanced-curlys: {{color: green;}}', parser, parser._parseRuleset.bind(parser), ParseError.RightCurlyExpected);
assertError('boo {--unbalanced-parens: not(()cool;}', parser, parser._parseRuleset.bind(parser), ParseError.LeftCurlyExpected);
assertError('boo {--unbalanced-parens: not)()(cool;}', parser, parser._parseRuleset.bind(parser), ParseError.LeftParenthesisExpected);
assertError('boo {--unbalanced-brackets: not[[]valid;}', parser, parser._parseRuleset.bind(parser), ParseError.LeftCurlyExpected);
assertError('boo {--unbalanced-brackets: not][][valid;}', parser, parser._parseRuleset.bind(parser), ParseError.LeftSquareBracketExpected);
});
test('nested ruleset', function () {
let parser = new Parser();
assertNode('.foo { color: red; input { color: blue; } }', parser, parser._parseRuleset.bind(parser));
assertNode('.foo { color: red; :focus { color: blue; } }', parser, parser._parseRuleset.bind(parser));
assertNode('.foo { color: red; .bar { color: blue; } }', parser, parser._parseRuleset.bind(parser));
assertNode('.foo { color: red; &:hover { color: blue; } }', parser, parser._parseRuleset.bind(parser));
assertNode('.foo { color: red; + .bar { color: blue; } }', parser, parser._parseRuleset.bind(parser));
assertNode('.foo { color: red; foo:hover { color: blue }; }', parser, parser._parseRuleset.bind(parser));
assertNode('.foo { color: red; @media screen { color: blue }; }', parser, parser._parseRuleset.bind(parser));
// Top level curly braces are allowed in declaration values if they are for a custom property.
assertNode('.foo { --foo: {}; }', parser, parser._parseRuleset.bind(parser));
// Top level curly braces are not allowed in declaration values.
assertError('.foo { foo: {}; }', parser, parser._parseRuleset.bind(parser), ParseError.PropertyValueExpected);
});
test('nested ruleset 2', function () {
let parser = new Parser();
assertNode('.foo { .parent & { color: blue; } }', parser, parser._parseRuleset.bind(parser));
assertNode('.foo { color: red; & > .bar, > .baz { color: blue; } }', parser, parser._parseRuleset.bind(parser));
assertNode('.foo { & .bar & .baz & .qux { color: blue; } }', parser, parser._parseRuleset.bind(parser));
assertNode('.foo { color: red; :not(&) { color: blue; }; + .bar + & { color: green; } }', parser, parser._parseRuleset.bind(parser));
assertNode('.foo { color: red; & { color: blue; } && { color: green; } }', parser, parser._parseRuleset.bind(parser));
assertNode('.foo { & :is(.bar, &.baz) { color: red; } }', parser, parser._parseRuleset.bind(parser));
assertNode('figure { > figcaption { background: hsl(0 0% 0% / 50%); > p { font-size: .9rem; } } }', parser, parser._parseRuleset.bind(parser));
assertNode('@layer base { html { & body { min-block-size: 100%; } } }', parser, parser._parseStylesheet.bind(parser));
});
test('selector', function () {
const parser = new Parser();
assertNode('asdsa', parser, parser._parseSelector.bind(parser));
assertNode('asdsa + asdas', parser, parser._parseSelector.bind(parser));
assertNode('asdsa + asdas + name', parser, parser._parseSelector.bind(parser));
assertNode('asdsa + asdas + name', parser, parser._parseSelector.bind(parser));
assertNode('name #id#anotherid', parser, parser._parseSelector.bind(parser));
assertNode('name.far .boo', parser, parser._parseSelector.bind(parser));
assertNode('name .name .zweitername', parser, parser._parseSelector.bind(parser));
assertNode('*', parser, parser._parseSelector.bind(parser));
assertNode('#id', parser, parser._parseSelector.bind(parser));
assertNode('far.boo', parser, parser._parseSelector.bind(parser));
assertNode('::slotted(div)::after', parser, parser._parseSelector.bind(parser)); // 35076
});
test('simple selector', function () {
const parser = new Parser();
assertNode('name', parser, parser._parseSimpleSelector.bind(parser));
assertNode('#id#anotherid', parser, parser._parseSimpleSelector.bind(parser));
assertNode('name.far', parser, parser._parseSimpleSelector.bind(parser));
assertNode('name.erstername.zweitername', parser, parser._parseSimpleSelector.bind(parser));
});
test('element name', function () {
const parser = new Parser();
assertNode('name', parser, parser._parseElementName.bind(parser));
assertNode('*', parser, parser._parseElementName.bind(parser));
assertNode('foo|h1', parser, parser._parseElementName.bind(parser));
assertNode('foo|*', parser, parser._parseElementName.bind(parser));
assertNode('|h1', parser, parser._parseElementName.bind(parser));
assertNode('*|h1', parser, parser._parseElementName.bind(parser));
});
test('attrib', function () {
const parser = new Parser();
assertNode('[name]', parser, parser._parseAttrib.bind(parser));
assertNode('[name = name2]', parser, parser._parseAttrib.bind(parser));
assertNode('[name ~= name3]', parser, parser._parseAttrib.bind(parser));
assertNode('[name~=name3]', parser, parser._parseAttrib.bind(parser));
assertNode('[name |= name3]', parser, parser._parseAttrib.bind(parser));
assertNode('[name |= "this is a striiiing"]', parser, parser._parseAttrib.bind(parser));
assertNode('[href*="insensitive" i]', parser, parser._parseAttrib.bind(parser));
assertNode('[href*="sensitive" S]', parser, parser._parseAttrib.bind(parser));
// Single namespace
assertNode('[namespace|name]', parser, parser._parseAttrib.bind(parser));
assertNode('[name-space|name = name2]', parser, parser._parseAttrib.bind(parser));
assertNode('[name_space|name ~= name3]', parser, parser._parseAttrib.bind(parser));
assertNode('[name0spae|name~=name3]', parser, parser._parseAttrib.bind(parser));
assertNode('[NameSpace|name |= "this is a striiiing"]', parser, parser._parseAttrib.bind(parser));
assertNode('[name\\*space|name |= name3]', parser, parser._parseAttrib.bind(parser));
assertNode('[*|name]', parser, parser._parseAttrib.bind(parser));
});
test('pseudo', function () {
const parser = new Parser();
assertNode(':some', parser, parser._parsePseudo.bind(parser));
assertNode(':some(thing)', parser, parser._parsePseudo.bind(parser));
assertNode(':nth-child(12)', parser, parser._parsePseudo.bind(parser));
assertNode(':nth-child(1n)', parser, parser._parsePseudo.bind(parser));
assertNode(':nth-child(-n+3)', parser, parser._parsePseudo.bind(parser));
assertNode(':nth-child(2n+1)', parser, parser._parsePseudo.bind(parser));
assertNode(':nth-child(2n+1 of .foo)', parser, parser._parsePseudo.bind(parser));
assertNode(':nth-child(2n+1 of .foo > bar, :not(*) ~ [other="value"])', parser, parser._parsePseudo.bind(parser));
assertNode(':lang(it)', parser, parser._parsePseudo.bind(parser));
assertNode(':not(.class)', parser, parser._parsePseudo.bind(parser));
assertNode(':not(:disabled)', parser, parser._parsePseudo.bind(parser));
assertNode(':not(#foo)', parser, parser._parsePseudo.bind(parser));
assertNode('::slotted(*)', parser, parser._parsePseudo.bind(parser)); // #35076
assertNode('::slotted(div:hover)', parser, parser._parsePseudo.bind(parser)); // #35076
assertNode(':global(.output ::selection)', parser, parser._parsePseudo.bind(parser)); // #49010
assertNode(':matches(:hover, :focus)', parser, parser._parsePseudo.bind(parser)); // #49010
assertNode(':host([foo=bar][bar=foo])', parser, parser._parsePseudo.bind(parser)); // #49589
assertNode(':has(> .test)', parser, parser._parsePseudo.bind(parser)); // #250
assertNode(':has(~ .test)', parser, parser._parsePseudo.bind(parser)); // #250
assertNode(':has(+ .test)', parser, parser._parsePseudo.bind(parser)); // #250
assertNode(':has(~ div .test)', parser, parser._parsePseudo.bind(parser)); // #250
assertError('::', parser, parser._parsePseudo.bind(parser), ParseError.IdentifierExpected);
assertError(':: foo', parser, parser._parsePseudo.bind(parser), ParseError.IdentifierExpected);
assertError(':nth-child(1n of)', parser, parser._parsePseudo.bind(parser), ParseError.SelectorExpected);
});
test('declaration', function () {
const parser = new Parser();
assertNode('name : "this is a string" !important', parser, parser._parseDeclaration.bind(parser));
assertNode('name : "this is a string"', parser, parser._parseDeclaration.bind(parser));
assertNode('property:12', parser, parser._parseDeclaration.bind(parser));
assertNode('-vendor-property: 12', parser, parser._parseDeclaration.bind(parser));
assertNode('font-size: 12px', parser, parser._parseDeclaration.bind(parser));
assertNode('color : #888 /4', parser, parser._parseDeclaration.bind(parser));
assertNode('filter : progid:DXImageTransform.Microsoft.Shadow(color=#000000,direction=45)', parser, parser._parseDeclaration.bind(parser));
assertNode('filter : progid: DXImageTransform.\nMicrosoft.\nDropShadow(\noffx=2, offy=1, color=#000000)', parser, parser._parseDeclaration.bind(parser));
assertNode('font-size: 12px', parser, parser._parseDeclaration.bind(parser));
assertNode('*background: #f00 /* IE 7 and below */', parser, parser._parseDeclaration.bind(parser));
assertNode('_background: #f60 /* IE 6 and below */', parser, parser._parseDeclaration.bind(parser));
assertNode('background-image: linear-gradient(to right, silver, white 50px, white calc(100% - 50px), silver)', parser, parser._parseDeclaration.bind(parser));
assertNode('grid-template-columns: [first nav-start] 150px [main-start] 1fr [last]', parser, parser._parseDeclaration.bind(parser));
assertNode('grid-template-columns: repeat(4, 10px [col-start] 250px [col-end]) 10px', parser, parser._parseDeclaration.bind(parser));
assertNode('grid-template-columns: [a] auto [b] minmax(min-content, 1fr) [b c d] repeat(2, [e] 40px)', parser, parser._parseDeclaration.bind(parser));
assertNode('grid-template: [foo] 10px / [bar] 10px', parser, parser._parseDeclaration.bind(parser));
assertNode(`grid-template: 'left1 footer footer' 1fr [end] / [ini] 1fr [info-start] 2fr 1fr [end]`, parser, parser._parseDeclaration.bind(parser));
assertNode(`content: "("counter(foo) ")"`, parser, parser._parseDeclaration.bind(parser));
assertNode(`content: 'Hello\\0A''world'`, parser, parser._parseDeclaration.bind(parser));
});
test('term', function () {
const parser = new Parser();
assertNode('"asdasd"', parser, parser._parseTerm.bind(parser));
assertNode('name', parser, parser._parseTerm.bind(parser));
assertNode('#FFFFFF', parser, parser._parseTerm.bind(parser));
assertNode('url("this is a url")', parser, parser._parseTerm.bind(parser));
assertNode('+324', parser, parser._parseTerm.bind(parser));
assertNode('-45', parser, parser._parseTerm.bind(parser));
assertNode('+45', parser, parser._parseTerm.bind(parser));
assertNode('-45%', parser, parser._parseTerm.bind(parser));
assertNode('-45mm', parser, parser._parseTerm.bind(parser));
assertNode('-45em', parser, parser._parseTerm.bind(parser));
assertNode('"asdsa"', parser, parser._parseTerm.bind(parser));
assertNode('faa', parser, parser._parseTerm.bind(parser));
assertNode('url("this is a striiiiing")', parser, parser._parseTerm.bind(parser));
assertNode('#FFFFFF', parser, parser._parseTerm.bind(parser));
assertNode('name(asd)', parser, parser._parseTerm.bind(parser));
assertNode('calc(50% + 20px)', parser, parser._parseTerm.bind(parser));
assertNode('calc(50% + (100%/3 - 2*1em - 2*1px))', parser, parser._parseTerm.bind(parser));
assertNoNode('%(\'repetitions: %S file: %S\', 1 + 2, "directory/file.less")', parser, parser._parseTerm.bind(parser)); // less syntax
assertNoNode('~"ms:alwaysHasItsOwnSyntax.For.Stuff()"', parser, parser._parseTerm.bind(parser)); // less syntax
assertNode('U+002?-0199', parser, parser._parseTerm.bind(parser));
assertNoNode('U+002?-01??', parser, parser._parseTerm.bind(parser));
assertNoNode('U+00?0;', parser, parser._parseTerm.bind(parser));
assertNoNode('U+0XFF;', parser, parser._parseTerm.bind(parser));
});
test('function', function () {
const parser = new Parser();
assertNode('name( "bla" )', parser, parser._parseFunction.bind(parser));
assertNode('name( name )', parser, parser._parseFunction.bind(parser));
assertNode('name( -500mm )', parser, parser._parseFunction.bind(parser));
assertNode('\u060frf()', parser, parser._parseFunction.bind(parser));
assertNode('über()', parser, parser._parseFunction.bind(parser));
assertNoNode('über ()', parser, parser._parseFunction.bind(parser));
assertNoNode('%()', parser, parser._parseFunction.bind(parser));
assertNoNode('% ()', parser, parser._parseFunction.bind(parser));
assertFunction('let(--color)', parser, parser._parseFunction.bind(parser));
assertFunction('let(--color, somevalue)', parser, parser._parseFunction.bind(parser));
assertFunction('let(--variable1, --variable2)', parser, parser._parseFunction.bind(parser));
assertFunction('let(--variable1, let(--variable2))', parser, parser._parseFunction.bind(parser));
assertFunction('fun(value1, value2)', parser, parser._parseFunction.bind(parser));
assertFunction('fun(value1,)', parser, parser._parseFunction.bind(parser));
});
test('test token prio', function () {
const parser = new Parser();
assertNode('!important', parser, parser._parsePrio.bind(parser));
assertNode('!/*demo*/important', parser, parser._parsePrio.bind(parser));
assertNode('! /*demo*/ important', parser, parser._parsePrio.bind(parser));
assertNode('! /*dem o*/ important', parser, parser._parsePrio.bind(parser));
});
test('hexcolor', function () {
const parser = new Parser();
assertNode('#FFF', parser, parser._parseHexColor.bind(parser));
assertNode('#FFFF', parser, parser._parseHexColor.bind(parser));
assertNode('#FFFFFF', parser, parser._parseHexColor.bind(parser));
assertNode('#FFFFFFFF', parser, parser._parseHexColor.bind(parser));
});
test('test class', function () {
const parser = new Parser();
assertNode('.faa', parser, parser._parseClass.bind(parser));
assertNode('faa', parser, parser._parseElementName.bind(parser));
assertNode('*', parser, parser._parseElementName.bind(parser));
assertNode('.faa42', parser, parser._parseClass.bind(parser));
});
test('prio', function () {
const parser = new Parser();
assertNode('!important', parser, parser._parsePrio.bind(parser));
});
test('expr', function () {
const parser = new Parser();
assertNode('45,5px', parser, parser._parseExpr.bind(parser));
assertNode(' 45 , 5px ', parser, parser._parseExpr.bind(parser));
assertNode('5/6', parser, parser._parseExpr.bind(parser));
assertNode('36mm, -webkit-calc(100%-10px)', parser, parser._parseExpr.bind(parser));
});
test('url', function () {
const parser = new Parser();
assertNode('url(//yourdomain/yourpath.png)', parser, parser._parseURILiteral.bind(parser));
assertNode('url(\'http://msft.com\')', parser, parser._parseURILiteral.bind(parser));
assertNode('url("http://msft.com")', parser, parser._parseURILiteral.bind(parser));
assertNode('url( "http://msft.com")', parser, parser._parseURILiteral.bind(parser));
assertNode('url(\t"http://msft.com")', parser, parser._parseURILiteral.bind(parser));
assertNode('url(\n"http://msft.com")', parser, parser._parseURILiteral.bind(parser));
assertNode('url("http://msft.com"\n)', parser, parser._parseURILiteral.bind(parser));
assertNode('url("")', parser, parser._parseURILiteral.bind(parser));
assertNode('uRL("")', parser, parser._parseURILiteral.bind(parser));
assertNode('URL("")', parser, parser._parseURILiteral.bind(parser));
assertNode('url(http://msft.com)', parser, parser._parseURILiteral.bind(parser));
assertNode('url()', parser, parser._parseURILiteral.bind(parser));
assertNode('url(\'http://msft.com\n)', parser, parser._parseURILiteral.bind(parser));
assertError('url("http://msft.com"', parser, parser._parseURILiteral.bind(parser), ParseError.RightParenthesisExpected);
assertError('url(http://msft.com\')', parser, parser._parseURILiteral.bind(parser), ParseError.RightParenthesisExpected);
});
});