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// Reference mocha-typescript's global definitions:
/// <reference path="../node_modules/mocha-typescript/globals.d.ts" />
import * as fs from "fs";
import { assert } from "chai";
import * as cssParse from "css-parse";
import { CSSParser, importParser, keyframesParser, Parser, TokenType } from "../src/index";
describe("css", () => {
let parser: Parser;
before("create parser", () => parser = new Parser());
after("dispose parser", () => parser = null);
describe("tokenize", () => {
it("Button { background: red; }", () => {
const tokens = parser.tokenize("Button { background: red; }");
assert.deepEqual(tokens, [
{ type: TokenType.ident, source: "Button", name: "Button" },
" ", "{", " ",
{ type: TokenType.ident, source: "background", name: "background" },
":", " ",
{ type: TokenType.ident, source: "red", name: "red" },
";", " ", "}",
]);
});
it("@import url(~/app.css); Button { color: orange; }", () => {
const tokens = parser.tokenize("@import url(~/app.css); Button { color: orange; }");
assert.deepEqual(tokens, [
{ type: TokenType.atKeyword, source: "@import", name: "import" },
" ",
{ type: TokenType.url, source: "url(~/app.css)", url: "~/app.css" },
";", " ",
{ type: TokenType.ident, source: "Button", name: "Button" },
" ", "{", " ",
{ type: TokenType.ident, source: "color", name: "color" },
":", " ",
{ type: TokenType.ident, source: "orange", name: "orange" },
";", " ", "}",
]);
});
it("some", () => {
const css = `Button {
background: rgba(255, 0, 0, 1);
width: 25%;
}`;
const tokens = parser.tokenize(css);
assert.deepEqual(tokens, [
{ type: TokenType.ident, source: "Button", name: "Button" },
" ", "{", " ",
{ type: TokenType.ident, source: "background", name: "background" },
":", " ",
{ type: TokenType.functionToken, source: "rgba(", name: "rgba" },
{ type: TokenType.number, source: "255" },
",", " ",
{ type: TokenType.number, source: "0" },
",", " ",
{ type: TokenType.number, source: "0" },
",", " ",
{ type: TokenType.number, source: "1" },
")", ";", " ",
{ type: TokenType.ident, source: "width", name: "width" },
":", " ",
{ type: TokenType.percentage, source: "25%" },
";", " ", "}",
]);
});
it("@keyframes", () => {
const css = `@keyframes mymove {
from { top: 0px; }
to { top: 200px; }
}`;
const tokens = parser.tokenize(css);
assert.deepEqual(tokens, [
{ type: TokenType.atKeyword, source: "@keyframes", name: "keyframes" },
" ",
{ type: TokenType.ident, source: "mymove", name: "mymove" },
" ", "{", " ",
{ type: TokenType.ident, source: "from", name: "from" },
" ", "{", " ",
{ type: TokenType.ident, source: "top", name: "top" },
":", " ",
{ type: TokenType.dimension, source: "0px" },
";", " ", "}", " ",
{ type: TokenType.ident, source: "to", name: "to" },
" ", "{", " ",
{ type: TokenType.ident, source: "top", name: "top" },
":", " ",
{ type: TokenType.dimension, source: "200px" },
";", " ", "}", " ", "}",
]);
});
it("linear-gradient(rgba(...", () => {
const css = `Button {
background: linear-gradient(-90deg, rgba(255, 0, 0, 0), blue, #FFFF00, #00F);
}`;
const tokens = parser.tokenize(css);
assert.deepEqual(tokens, [
{ type: TokenType.ident, source: "Button", name: "Button" },
" ", "{", " ",
{ type: TokenType.ident, source: "background", name: "background" },
":", " ",
{ type: TokenType.functionToken, source: "linear-gradient(", name: "linear-gradient" },
{ type: TokenType.dimension, source: "-90deg" },
",", " ",
{ type: TokenType.functionToken, source: "rgba(", name: "rgba" },
{ type: TokenType.number, source: "255" },
",", " ",
{ type: TokenType.number, source: "0" },
",", " ",
{ type: TokenType.number, source: "0" },
",", " ",
{ type: TokenType.number, source: "0" },
")", ",", " ",
{ type: TokenType.ident, source: "blue", name: "blue" },
",", " ",
{ type: TokenType.hash, source: "#FFFF00", name: "FFFF00" },
",", " ",
{ type: TokenType.delim, source: "#" },
{ type: TokenType.dimension, source: "00F" },
")", ";", " ", "}",
]);
});
it("string tokens", () => {
const css = `Button {
font: "\\54 ah'o\\"ma";
font: "Taho${"\\\n"}ma";
font: 'Tahoma"';
}`;
const tokens = parser.tokenize(css);
assert.deepEqual(tokens, [
{ type: TokenType.ident, source: "Button", name: "Button" },
" ", "{", " ",
{ type: TokenType.ident, source: "font", name: "font" },
":", " ",
{ type: TokenType.string, source: `"\\54 ah'o\\"ma"`, text: "Tah'o\"ma" },
";", " ",
{ type: TokenType.ident, source: "font", name: "font" },
":", " ",
{ type: TokenType.string, source: `"Taho${"\\\n"}ma"`, text: "Tahoma" },
";", " ",
{ type: TokenType.ident, source: "font", name: "font" },
":", " ",
{ type: TokenType.string, source: `'Tahoma"'`, text: "Tahoma\"" },
";", " ", "}",
]);
});
it("escaped ident", () => {
const css = `\\42utton { color: red; }`;
const tokens = parser.tokenize(css);
assert.deepEqual(tokens, [
{ type: TokenType.ident, source: `\\42utton`, name: "Button" },
" ", "{", " ",
{ type: TokenType.ident, source: "color", name: "color" },
":", " ",
{ type: TokenType.ident, source: "red", name: "red" },
";", " ", "}",
]);
});
it("unicode range", () => {
const css = `
unicode-range: U+26; /* single codepoint */
unicode-range: U+0-7F;
unicode-range: U+0025-00FF; /* codepoint range */
unicode-range: U+4??; /* wildcard range */
unicode-range: U+0025-00FF, U+4??; /* multiple values */
`;
const tokens = parser.tokenize(css);
assert.deepEqual(tokens, [
" ",
{ type: TokenType.ident, source: "unicode-range", name: "unicode-range" },
":", " ",
{ type: TokenType.unicodeRange, source: "U+26", start: 38, end: 38 },
";", " ", " ",
{ type: TokenType.ident, source: "unicode-range", name: "unicode-range" },
":", " ",
{ type: TokenType.unicodeRange, source: "U+0-7F", start: 0, end: 127 },
";", " ",
{ type: TokenType.ident, source: "unicode-range", name: "unicode-range" },
":", " ",
{ type: TokenType.unicodeRange, source: "U+0025-00FF", start: 37, end: 255 },
";", " ", " ",
{ type: TokenType.ident, source: "unicode-range", name: "unicode-range" },
":", " ",
{ type: TokenType.unicodeRange, source: "U+4??", start: 1024, end: 1279 },
";", " ", " ",
{ type: TokenType.ident, source: "unicode-range", name: "unicode-range" },
":", " ",
{ type: TokenType.unicodeRange, source: "U+0025-00FF", start: 37, end: 255 },
",", " ",
{ type: TokenType.unicodeRange, source: "U+4??", start: 1024, end: 1279 },
";", " ", " ",
]);
});
it("match selector", () => {
const css = `*[title~="flower"] { border: 5px solid yellow; }`;
const tokens = parser.tokenize(css);
assert.deepEqual(tokens, [
{ type: TokenType.delim, source: "*" },
"[",
{ type: TokenType.ident, source: "title", name: "title" },
"~=",
{ type: TokenType.string, source: `"flower"`, text: "flower" },
"]", " ", "{", " ",
{ type: TokenType.ident, source: "border", name: "border" },
":", " ",
{ type: TokenType.dimension, source: "5px" },
" ",
{ type: TokenType.ident, source: "solid", name: "solid" },
" ",
{ type: TokenType.ident, source: "yellow", name: "yellow" },
";", " ", "}",
]);
});
it("numerics", () => {
const css = `Button { width: .0; height: 100%; font-size: 10em; }`;
const tokens = parser.tokenize(css);
assert.deepEqual(tokens, [
{ type: TokenType.ident, source: "Button", name: "Button" },
" ", "{", " ",
{ type: TokenType.ident, source: "width", name: "width" },
":", " ",
{ type: TokenType.number, source: ".0" },
";", " ",
{ type: TokenType.ident, source: "height", name: "height" },
":", " ",
{ type: TokenType.percentage, source: "100%" },
";", " ",
{ type: TokenType.ident, source: "font-size", name: "font-size" },
":", " ",
{ type: TokenType.dimension, source: "10em" },
";", " ", "}",
]);
});
it("urls", () => {
const css = `
@import url( ~/app.css );
@import url(~/app.css);
Button { background: url("res://img1.jpg"); }
Label { background: url('res://img1.jpg'); }
TextField { background: url(res://img1.jpg); }
`;
const tokens = parser.tokenize(css);
assert.deepEqual(tokens, [
" ",
{ type: TokenType.atKeyword, source: "@import", name: "import" },
" ",
{ type: TokenType.url, source: "url( ~/app.css )", url: "~/app.css" },
";", " ",
{ type: TokenType.atKeyword, source: "@import", name: "import" },
" ",
{ type: TokenType.url, source: "url(~/app.css)", url: "~/app.css" },
";", " ",
{ type: TokenType.ident, source: "Button", name: "Button" },
" ", "{", " ",
{ type: TokenType.ident, source: "background", name: "background" },
":", " ",
{ type: TokenType.url, source: `url("res://img1.jpg")`, url: "res://img1.jpg" },
";", " ", "}", " ",
{ type: TokenType.ident, source: "Label", name: "Label" },
" ", "{", " ",
{ type: TokenType.ident, source: "background", name: "background" },
":", " ",
{ type: TokenType.url, source: `url('res://img1.jpg')`, url: "res://img1.jpg" },
";", " ", "}", " ",
{ type: TokenType.ident, source: "TextField", name: "TextField" },
" ", "{", " ",
{ type: TokenType.ident, source: "background", name: "background" },
":", " ",
{ type: TokenType.url, source: `url(res://img1.jpg)`, url: "res://img1.jpg" },
";", " ", "}", " ",
]);
});
});
describe("parse", () => {
it("Button { background: red; }", () => {
const stylesheet = parser.parseAStylesheet("Button { background: red; }");
assert.deepEqual(stylesheet, {
type: "stylesheet",
stylesheet: {
rules: [
{
type: "qualified-rule",
prelude: [
{ type: TokenType.ident, source: "Button", name: "Button" },
" ",
],
block: {
type: TokenType.simpleBlock,
associatedToken: "{",
values: [
" ",
{ type: TokenType.ident, source: "background", name: "background" },
":", " ",
{ type: TokenType.ident, source: "red", name: "red" },
";", " ",
],
},
},
],
parsingErrors: [],
},
});
});
it("@import url(~/app.css); Button { color: orange; }", () => {
const stylesheet = parser.parseAStylesheet("@import url(~/app.css); Button { color: orange; }");
assert.deepEqual(stylesheet, {
type: "stylesheet",
stylesheet: {
rules: [
{
type: "at-rule",
name: "import",
prelude: [" ", { type: TokenType.url, source: `url(~/app.css)`, url: "~/app.css" }],
block: undefined,
},
{
type: "qualified-rule",
prelude: [{ type: TokenType.ident, source: "Button", name: "Button" }, " "],
block: {
type: TokenType.simpleBlock,
associatedToken: "{",
values: [
" ",
{ type: TokenType.ident, source: "color", name: "color" },
":", " ",
{ type: TokenType.ident, source: "orange", name: "orange" },
";", " ",
],
},
},
],
parsingErrors: [],
},
});
});
it("linear-gradient(rgba(...", () => {
const css = `Button {
background: linear-gradient(-90deg, rgba(255, 0, 0, 0), blue, #FFFF00, #00F);
}`;
const stylesheet = parser.parseAStylesheet(css);
assert.deepEqual(stylesheet, {
type: "stylesheet",
stylesheet: {
rules: [
{
type: "qualified-rule",
prelude: [{ type: TokenType.ident, source: "Button", name: "Button" }, " "],
block: {
associatedToken: "{",
type: TokenType.simpleBlock,
values: [
" ",
{ type: TokenType.ident, source: "background", name: "background" },
":", " ",
{
type: TokenType.functionObject,
name: "linear-gradient",
components: [
{ type: TokenType.dimension, source: "-90deg" },
",", " ",
{
type: TokenType.functionObject,
name: "rgba",
components: [
{ type: TokenType.number, source: "255" },
",", " ",
{ type: TokenType.number, source: "0" },
",", " ",
{ type: TokenType.number, source: "0" },
",", " ",
{ type: TokenType.number, source: "0" },
],
},
",", " ",
{ type: TokenType.ident, source: "blue", name: "blue" },
",", " ",
{ type: TokenType.hash, source: "#FFFF00", name: "FFFF00" },
",", " ",
{ type: TokenType.delim, source: "#" },
{ type: TokenType.dimension, source: "00F" },
],
},
";", " ",
],
},
},
],
parsingErrors: [],
},
});
});
it("@keyframe", () => {
const css = `
@keyframes example {
0% { transform: scale(1, 1); }
100% { transform: scale(1, 0); }
}
div {
animation: example 5s linear 2s infinite alternate;
}
`;
const stylesheet = parser.parseAStylesheet(css);
assert.deepEqual(stylesheet, {
type: "stylesheet",
stylesheet: {
rules: [
{
type: "at-rule",
name: "keyframes",
prelude: [" ", { type: TokenType.ident, source: "example", name: "example" }, " "],
block: {
type: TokenType.simpleBlock,
associatedToken: "{",
values: [
" ",
{ type: TokenType.percentage, source: "0%" },
" ",
{
type: TokenType.simpleBlock,
associatedToken: "{",
values: [
" ",
{ type: TokenType.ident, source: "transform", name: "transform" },
":", " ",
{
type: TokenType.functionObject,
name: "scale",
components: [
{ type: TokenType.number, source: "1" },
",", " ",
{ type: TokenType.number, source: "1" },
],
},
";", " ",
],
},
" ",
{ type: TokenType.percentage, source: "100%" },
" ",
{
type: TokenType.simpleBlock,
associatedToken: "{",
values: [
" ",
{ type: TokenType.ident, source: "transform", name: "transform" },
":", " ",
{
type: TokenType.functionObject,
name: "scale",
components: [
{ type: TokenType.number, source: "1" },
",", " ",
{ type: TokenType.number, source: "0" },
],
},
";", " ",
],
},
" ",
],
},
},
{
type: "qualified-rule",
prelude: [{ type: TokenType.ident, source: "div", name: "div" }, " "],
block: {
associatedToken: "{",
type: TokenType.simpleBlock,
values: [
" ",
{ type: TokenType.ident, source: "animation", name: "animation" },
":", " ",
{ type: TokenType.ident, source: "example", name: "example" },
" ",
{ type: TokenType.dimension, source: "5s" },
" ",
{ type: TokenType.ident, source: "linear", name: "linear" },
" ",
{ type: TokenType.dimension, source: "2s" },
" ",
{ type: TokenType.ident, source: "infinite", name: "infinite" },
" ",
{ type: TokenType.ident, source: "alternate", name: "alternate" },
";",
" ",
],
},
},
],
parsingErrors: [],
},
});
});
});
});
describe("css as rework", () => {
let parser: CSSParser;
before("create parser", () => {
parser = new CSSParser();
parser.addAtRuleParser(importParser);
parser.addAtRuleParser(keyframesParser);
});
after("dispose parser", () => parser = null);
function compare(css: string): void {
const nativescript = parser.parseACSSStylesheet(css);
// console.log(JSON.stringify(nativescript));
// Strip type info, undefined properties, positions.
const rework = JSON.parse(JSON.stringify(cssParse(css), (key, value) => key === "position" ? undefined : value));
// console.log("REWORK AST:\n" + JSON.stringify(rework, null, " "));
// console.log("{N} AST:\n" + JSON.stringify(nativescript, null, " "));
assert.deepEqual(nativescript, rework);
}
it("div{color:red}p{color:blue}", () => {
compare("div{color:red}p{color:blue}");
});
it("Button, Label { background: red; }", () => {
compare("Button, Label {\n background: red;\n}\n");
});
it("Label { color: argb(1, 255, 0, 0); }", () => {
compare("Label { color: argb(1, 255, 0, 0); }");
});
it("Div { width: 50%; height: 30px; border-width: 2; }", () => {
compare("Div { width: 50%; height: 30px; border-width: 2; }");
});
it("Div {color:#212121;opacity:.9}", () => {
compare("Div {color:#212121;opacity:.9}");
});
it("core.light.css", () => {
const css = fs.readFileSync("./test/assets/core.light.css").toString();
compare(css);
});
it("simple keyframe", () => {
const css = `
@keyframes example {
0% { transform: scale(1, 1); }
100% { transform: scale(1, 0); }
}
div {
animation: example 5s linear 2s infinite alternate;
}
`;
compare(css);
});
it("simple import", () => {
const css = `
@import url("mycomponent.css");
@import url("mycomponent-print.css") print;
div { background: red; }
`;
compare(css);
});
});