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svelte/test/test.js

153 lines
3.7 KiB

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import { compile } from '../compiler/index.js';
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import parse from '../compiler/parse/index.js';
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import * as assert from 'assert';
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import * as path from 'path';
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import * as fs from 'fs';
import jsdom from 'jsdom';
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const cache = {};
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require.extensions[ '.html' ] = function ( module, filename ) {
const code = cache[ filename ] || ( cache[ filename ] = compile( fs.readFileSync( filename, 'utf-8' ) ).code );
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return module._compile( code, filename );
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};
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function exists ( path ) {
try {
fs.statSync( path );
return true;
} catch ( err ) {
return false;
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}
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}
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describe( 'svelte', () => {
describe( 'parser', () => {
fs.readdirSync( 'test/parser' ).forEach( dir => {
if ( dir[0] === '.' ) return;
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const solo = exists( `test/parser/${dir}/solo` );
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( solo ? it.only : it )( dir, () => {
const input = fs.readFileSync( `test/parser/${dir}/input.html`, 'utf-8' );
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try {
const actual = parse( input );
const expected = require( `./parser/${dir}/output.json` );
assert.deepEqual( actual, expected );
} catch ( err ) {
if ( err.name !== 'ParseError' ) throw err;
try {
const expected = require( `./parser/${dir}/error.json` );
assert.equal( err.shortMessage, expected.message );
assert.deepEqual( err.loc, expected.loc );
assert.equal( err.pos, expected.pos );
} catch ( err2 ) {
throw err2.code === 'MODULE_NOT_FOUND' ? err : err2;
}
}
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});
});
});
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describe( 'compiler', () => {
function loadConfig ( dir ) {
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try {
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return require( `./compiler/${dir}/_config.js` ).default;
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} catch ( err ) {
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if ( err.code === 'E_NOT_FOUND' ) {
return {};
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}
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throw err;
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}
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}
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function env () {
return new Promise( ( fulfil, reject ) => {
jsdom.env( '<main></main>', ( err, window ) => {
if ( err ) {
reject( err );
} else {
global.document = window.document;
fulfil( window );
}
});
});
}
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fs.readdirSync( 'test/compiler' ).forEach( dir => {
if ( dir[0] === '.' ) return;
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const config = loadConfig( dir );
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( config.solo ? it.only : it )( dir, () => {
let compiled;
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try {
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const source = fs.readFileSync( `test/compiler/${dir}/main.html`, 'utf-8' );
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compiled = compile( source );
} catch ( err ) {
if ( config.compileError ) {
config.compileError( err );
return;
} else {
throw err;
}
}
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const { code } = compiled;
const withLineNumbers = code.split( '\n' ).map( ( line, i ) => {
i = String( i + 1 );
while ( i.length < 3 ) i = ` ${i}`;
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return `${i}: ${line.replace( /^\t+/, match => match.split( '\t' ).join( ' ' ) )}`;
}).join( '\n' );
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cache[ path.resolve( `test/compiler/${dir}/main.html` ) ] = code;
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let SvelteComponent;
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try {
SvelteComponent = require( `./compiler/${dir}/main.html` ).default;
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} catch ( err ) {
console.log( withLineNumbers ); // eslint-disable-line no-console
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throw err;
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}
if ( config.show ) {
console.log( withLineNumbers ); // eslint-disable-line no-console
}
return env()
.then( window => {
const target = window.document.querySelector( 'main' );
const component = new SvelteComponent({
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target,
data: config.data
});
if ( config.html ) {
assert.equal( target.innerHTML, config.html );
}
if ( config.test ) {
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config.test( component, target, window );
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} else {
component.teardown();
assert.equal( target.innerHTML, '' );
}
})
.catch( err => {
if ( !config.show ) console.log( withLineNumbers ); // eslint-disable-line no-console
throw err;
});
});
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});
});
});