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svelte/test/server-side-rendering/index.js

126 lines
3.3 KiB

import assert from 'assert';
import * as fs from 'fs';
import * as path from 'path';
import { addLineNumbers, loadConfig, setupHtmlEqual, svelte, tryToLoadJson } from '../helpers.js';
function tryToReadFile ( file ) {
try {
return fs.readFileSync( file, 'utf-8' );
} catch ( err ) {
if ( err.code !== 'ENOENT' ) throw err;
return null;
}
}
function capitalize ( str ) {
return str[0].toUpperCase() + str.slice( 1 );
}
describe( 'ssr', () => {
before( () => {
require( process.env.COVERAGE ?
'../../src/server-side-rendering/register.js' :
'../../ssr/register' );
return setupHtmlEqual();
});
fs.readdirSync( 'test/server-side-rendering/samples' ).forEach( dir => {
if ( dir[0] === '.' ) return;
// add .solo to a sample directory name to only run that test, or
// .show to always show the output. or both
const solo = /\.solo/.test( dir );
let show = /\.show/.test( dir );
if ( solo && process.env.CI ) {
throw new Error( 'Forgot to remove `solo: true` from test' );
}
( solo ? it.only : it )( dir, () => {
dir = path.resolve( 'test/server-side-rendering/samples', dir );
const component = require( `${dir}/main.html` );
const expectedHtml = tryToReadFile( `${dir}/_expected.html` );
const expectedCss = tryToReadFile( `${dir}/_expected.css` ) || '';
const data = tryToLoadJson( `${dir}/data.json` );
let html;
let css;
let error;
try {
html = component.render( data );
css = component.renderCss().css;
} catch ( e ) {
show = true;
error = e;
}
if ( show ) {
fs.readdirSync( dir ).forEach( file => {
if ( file[0] === '_' ) return;
const source = fs.readFileSync( `${dir}/${file}`, 'utf-8' );
const name = capitalize( file.slice( 0, -path.extname( file ).length ) );
const { code } = svelte.compile( source, { generate: 'ssr', name });
console.group( file );
console.log( addLineNumbers( code ) );
console.groupEnd();
});
}
if ( error ) throw error;
fs.writeFileSync( `${dir}/_actual.html`, html );
if ( css ) fs.writeFileSync( `${dir}/_actual.css`, css );
assert.htmlEqual( html, expectedHtml );
assert.equal( css.replace( /^\s+/gm, '' ), expectedCss.replace( /^\s+/gm, '' ) );
});
});
// duplicate client-side tests, as far as possible
fs.readdirSync( 'test/generator/samples' ).forEach( dir => {
if ( dir[0] === '.' ) return;
const config = loadConfig( `./generator/samples/${dir}/_config.js` );
if ( config.solo && process.env.CI ) {
throw new Error( 'Forgot to remove `solo: true` from test' );
}
if ( config['skip-ssr'] ) return;
( config.skip ? it.skip : config.solo ? it.only : it )( dir, () => {
let compiled;
try {
const source = fs.readFileSync( `test/generator/samples/${dir}/main.html`, 'utf-8' );
compiled = svelte.compile( source, { generate: 'ssr' });
} catch ( err ) {
if ( config.compileError ) {
config.compileError( err );
return;
} else {
throw err;
}
}
const component = require( `../generator/samples/${dir}/main.html` );
let html;
try {
html = component.render( config.data );
if ( config.html ) {
assert.htmlEqual( html, config.html );
}
} catch ( err ) {
console.log( addLineNumbers( compiled.code ) ); // eslint-disable-line no-console
throw err;
}
});
});
});