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504 lines
12 KiB
504 lines
12 KiB
import deindent from '../compiler/generate/utils/deindent.js';
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import spaces from '../compiler/utils/spaces.js';
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import assert from 'assert';
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import * as path from 'path';
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import * as fs from 'fs';
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import jsdom from 'jsdom';
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import * as acorn from 'acorn';
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import { SourceMapConsumer } from 'source-map';
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import { getLocator } from 'locate-character';
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import * as consoleGroup from 'console-group';
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consoleGroup.install();
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import * as sourceMapSupport from 'source-map-support';
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sourceMapSupport.install();
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// for coverage purposes, we need to test source files,
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// but for sanity purposes, we need to test dist files
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const svelte = process.env.COVERAGE ?
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require( '../compiler/index.js' ) :
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require( '../dist/svelte.js' );
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const cache = {};
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let showCompiledCode = false;
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require.extensions[ '.html' ] = function ( module, filename ) {
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const code = cache[ filename ] || ( cache[ filename ] = svelte.compile( fs.readFileSync( filename, 'utf-8' ) ).code );
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if ( showCompiledCode ) console.log( addLineNumbers( code ) ); // eslint-disable-line no-console
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return module._compile( code, filename );
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};
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function exists ( path ) {
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try {
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fs.statSync( path );
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return true;
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} catch ( err ) {
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return false;
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}
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}
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function env () {
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return new Promise( ( fulfil, reject ) => {
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jsdom.env( '<main></main>', ( err, window ) => {
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if ( err ) {
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reject( err );
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} else {
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global.document = window.document;
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fulfil( window );
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}
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});
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});
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}
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function addLineNumbers ( code ) {
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return code.split( '\n' ).map( ( line, i ) => {
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i = String( i + 1 );
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while ( i.length < 3 ) i = ` ${i}`;
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return `${i}: ${line.replace( /^\t+/, match => match.split( '\t' ).join( ' ' ) )}`;
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}).join( '\n' );
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}
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describe( 'svelte', () => {
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before( () => {
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function cleanChildren ( node ) {
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let previous = null;
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[ ...node.childNodes ].forEach( child => {
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if ( child.nodeType === 8 ) {
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// comment
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node.removeChild( child );
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return;
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}
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if ( child.nodeType === 3 ) {
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child.data = child.data.replace( /\s{2,}/, '\n' );
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// text
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if ( previous && previous.nodeType === 3 ) {
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previous.data += child.data;
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previous.data = previous.data.replace( /\s{2,}/, '\n' );
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node.removeChild( child );
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}
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}
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else {
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cleanChildren( child );
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}
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previous = child;
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});
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// collapse whitespace
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if ( node.firstChild && node.firstChild.nodeType === 3 ) {
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node.firstChild.data = node.firstChild.data.replace( /^\s+/, '' );
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if ( !node.firstChild.data ) node.removeChild( node.firstChild );
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}
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if ( node.lastChild && node.lastChild.nodeType === 3 ) {
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node.lastChild.data = node.lastChild.data.replace( /\s+$/, '' );
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if ( !node.lastChild.data ) node.removeChild( node.lastChild );
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}
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}
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return env().then( window => {
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assert.htmlEqual = ( actual, expected, message ) => {
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window.document.body.innerHTML = actual.trim();
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cleanChildren( window.document.body, '' );
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actual = window.document.body.innerHTML;
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window.document.body.innerHTML = expected.trim();
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cleanChildren( window.document.body, '' );
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expected = window.document.body.innerHTML;
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assert.deepEqual( actual, expected, message );
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};
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});
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});
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describe( 'parse', () => {
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fs.readdirSync( 'test/parser' ).forEach( dir => {
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if ( dir[0] === '.' ) return;
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const solo = exists( `test/parser/${dir}/solo` );
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( solo ? it.only : it )( dir, () => {
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const input = fs.readFileSync( `test/parser/${dir}/input.html`, 'utf-8' ).replace( /\s+$/, '' );
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try {
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const actual = svelte.parse( input );
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const expected = require( `./parser/${dir}/output.json` );
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assert.deepEqual( actual.html, expected.html );
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assert.deepEqual( actual.css, expected.css );
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assert.deepEqual( actual.js, expected.js );
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} catch ( err ) {
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if ( err.name !== 'ParseError' ) throw err;
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try {
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const expected = require( `./parser/${dir}/error.json` );
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assert.equal( err.message, expected.message );
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assert.deepEqual( err.loc, expected.loc );
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assert.equal( err.pos, expected.pos );
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} catch ( err2 ) {
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throw err2.code === 'MODULE_NOT_FOUND' ? err : err2;
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}
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}
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});
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});
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});
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describe( 'validate', () => {
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function tryToLoadJson ( file ) {
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try {
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return JSON.parse( fs.readFileSync( file ) );
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} catch ( err ) {
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if ( err.code !== 'ENOENT' ) throw err;
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return null;
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}
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}
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fs.readdirSync( 'test/validator' ).forEach( dir => {
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if ( dir[0] === '.' ) return;
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const solo = exists( `test/validator/${dir}/solo` );
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( solo ? it.only : it )( dir, () => {
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const input = fs.readFileSync( `test/validator/${dir}/input.html`, 'utf-8' ).replace( /\s+$/, '' );
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try {
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const parsed = svelte.parse( input );
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const errors = [];
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const warnings = [];
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svelte.validate( parsed, input, {
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onerror ( error ) {
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errors.push({
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message: error.message,
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pos: error.pos,
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loc: error.loc
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});
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},
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onwarn ( warning ) {
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warnings.push({
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message: warning.message,
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pos: warning.pos,
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loc: warning.loc
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});
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}
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});
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const expectedErrors = tryToLoadJson( `test/validator/${dir}/errors.json` ) || [];
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const expectedWarnings = tryToLoadJson( `test/validator/${dir}/warnings.json` ) || [];
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assert.deepEqual( errors, expectedErrors );
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assert.deepEqual( warnings, expectedWarnings );
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} catch ( err ) {
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if ( err.name !== 'ParseError' ) throw err;
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try {
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const expected = require( `./validator/${dir}/error.json` );
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assert.equal( err.shortMessage, expected.message );
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assert.deepEqual( err.loc, expected.loc );
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assert.equal( err.pos, expected.pos );
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} catch ( err2 ) {
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throw err2.code === 'MODULE_NOT_FOUND' ? err : err2;
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}
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}
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});
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});
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});
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describe( 'generate', () => {
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function loadConfig ( dir ) {
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try {
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return require( `./compiler/${dir}/_config.js` ).default;
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} catch ( err ) {
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if ( err.code === 'E_NOT_FOUND' ) {
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return {};
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}
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throw err;
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}
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}
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fs.readdirSync( 'test/compiler' ).forEach( dir => {
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if ( dir[0] === '.' ) return;
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const config = loadConfig( dir );
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( config.skip ? it.skip : config.solo ? it.only : it )( dir, () => {
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let compiled;
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showCompiledCode = config.show;
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try {
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const source = fs.readFileSync( `test/compiler/${dir}/main.html`, 'utf-8' );
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compiled = svelte.compile( source );
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} catch ( err ) {
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if ( config.compileError ) {
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config.compileError( err );
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return;
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} else {
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throw err;
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}
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}
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const { code } = compiled;
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// check that no ES2015+ syntax slipped in
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try {
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const startIndex = code.indexOf( 'function renderMainFragment' ); // may change!
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const es5 = spaces( startIndex ) + code.slice( startIndex ).replace( /export default .+/, '' );
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acorn.parse( es5, { ecmaVersion: 5 });
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} catch ( err ) {
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if ( !config.show ) console.log( addLineNumbers( code ) ); // eslint-disable-line no-console
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throw err;
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}
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cache[ path.resolve( `test/compiler/${dir}/main.html` ) ] = code;
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let SvelteComponent;
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try {
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SvelteComponent = require( `./compiler/${dir}/main.html` ).default;
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} catch ( err ) {
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if ( !config.show ) console.log( addLineNumbers( code ) ); // eslint-disable-line no-console
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throw err;
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}
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return env()
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.then( window => {
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const target = window.document.querySelector( 'main' );
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const component = new SvelteComponent({
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target,
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data: config.data
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});
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if ( config.html ) {
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assert.htmlEqual( target.innerHTML, config.html );
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}
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if ( config.test ) {
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config.test( assert, component, target, window );
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} else {
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component.teardown();
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assert.equal( target.innerHTML, '' );
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}
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})
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.catch( err => {
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if ( !config.show ) console.log( addLineNumbers( code ) ); // eslint-disable-line no-console
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throw err;
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});
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});
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});
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});
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describe( 'formats', () => {
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function testAmd ( code, expectedId, dependencies, html ) {
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const fn = new Function( 'define', code );
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return env().then( window => {
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function define ( id, deps, factory ) {
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assert.equal( id, expectedId );
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assert.deepEqual( deps, Object.keys( dependencies ) );
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const SvelteComponent = factory( ...Object.keys( dependencies ).map( key => dependencies[ key ] ) );
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const main = window.document.body.querySelector( 'main' );
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const component = new SvelteComponent({ target: main });
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assert.htmlEqual( main.innerHTML, html );
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component.teardown();
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}
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define.amd = true;
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fn( define );
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});
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}
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function testCjs ( code, dependencyById, html ) {
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const fn = new Function( 'module', 'exports', 'require', code );
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return env().then( window => {
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const module = { exports: {} };
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const require = id => {
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return dependencyById[ id ];
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};
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fn( module, module.exports, require );
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const SvelteComponent = module.exports;
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const main = window.document.body.querySelector( 'main' );
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const component = new SvelteComponent({ target: main });
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assert.htmlEqual( main.innerHTML, html );
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component.teardown();
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});
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}
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function testIife ( code, name, globals, html ) {
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const fn = new Function( Object.keys( globals ), `${code}\n\nreturn ${name};` );
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return env().then( window => {
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const SvelteComponent = fn( ...Object.keys( globals ).map( key => globals[ key ] ) );
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const main = window.document.body.querySelector( 'main' );
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const component = new SvelteComponent({ target: main });
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assert.htmlEqual( main.innerHTML, html );
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component.teardown();
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});
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}
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describe( 'amd', () => {
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it( 'generates an AMD module', () => {
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const source = deindent`
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<div>{{answer}}</div>
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<script>
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import answer from 'answer';
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export default {
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data () {
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return { answer };
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}
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};
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</script>
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`;
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const { code } = svelte.compile( source, {
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format: 'amd',
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amd: { id: 'foo' }
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});
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return testAmd( code, 'foo', { answer: 42 }, `<div>42</div>` );
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});
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});
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describe( 'cjs', () => {
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it( 'generates a CommonJS module', () => {
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const source = deindent`
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<div>{{answer}}</div>
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<script>
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import answer from 'answer';
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export default {
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data () {
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return { answer };
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}
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};
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</script>
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`;
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const { code } = svelte.compile( source, {
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format: 'cjs'
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});
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return testCjs( code, { answer: 42 }, `<div>42</div>` );
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});
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});
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describe( 'iife', () => {
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it( 'generates a self-executing script', () => {
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const source = deindent`
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<div>{{answer}}</div>
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<script>
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import answer from 'answer';
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export default {
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data () {
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return { answer };
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}
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};
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</script>
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`;
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const { code } = svelte.compile( source, {
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format: 'iife',
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name: 'Foo',
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globals: {
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answer: 'answer'
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}
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});
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return testIife( code, 'Foo', { answer: 42 }, `<div>42</div>` );
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});
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});
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describe( 'umd', () => {
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it( 'generates a UMD build', () => {
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const source = deindent`
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<div>{{answer}}</div>
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<script>
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import answer from 'answer';
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export default {
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data () {
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return { answer };
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}
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};
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</script>
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`;
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const { code } = svelte.compile( source, {
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format: 'umd',
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name: 'Foo',
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globals: {
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answer: 'answer'
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},
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amd: {
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id: 'foo'
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}
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});
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return testAmd( code, 'foo', { answer: 42 }, `<div>42</div>` )
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.then( () => testCjs( code, { answer: 42 }, `<div>42</div>` ) )
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.then( () => testIife( code, 'Foo', { answer: 42 }, `<div>42</div>` ) );
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});
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});
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});
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describe( 'sourcemaps', () => {
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fs.readdirSync( 'test/sourcemaps' ).forEach( dir => {
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if ( dir[0] === '.' ) return;
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const solo = exists( `test/sourcemaps/${dir}/solo` );
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( solo ? it.only : it )( dir, () => {
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const input = fs.readFileSync( `test/sourcemaps/${dir}/input.html`, 'utf-8' ).replace( /\s+$/, '' );
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const { code, map } = svelte.compile( input );
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fs.writeFileSync( `test/sourcemaps/${dir}/output.js`, `${code}\n//# sourceMappingURL=output.js.map` );
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fs.writeFileSync( `test/sourcemaps/${dir}/output.js.map`, JSON.stringify( map, null, ' ' ) );
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const { test } = require( `./sourcemaps/${dir}/test.js` );
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const smc = new SourceMapConsumer( map );
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const locateInSource = getLocator( input );
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const locateInGenerated = getLocator( code );
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test({ assert, code, map, smc, locateInSource, locateInGenerated });
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});
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});
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});
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});
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