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svelte/test/parser/index.js

93 lines
2.8 KiB

import assert from 'assert';
import fs from 'fs';
import { svelte, tryToLoadJson } from '../helpers.js';
describe('parse', () => {
fs.readdirSync('test/parser/samples').forEach(dir => {
if (dir[0] === '.') return;
// add .solo to a sample directory name to only run that test
const solo = /\.solo$/.test(dir);
if (solo && process.env.CI) {
throw new Error(
`Forgot to remove '.solo' from test parser/samples/${dir}`
);
}
(solo ? it.only : it)(dir, () => {
const options = tryToLoadJson(`test/parser/samples/${dir}/options.json`) || {};
function test(options, input, expectedOutput, expectedError, outputFile) {
try {
const actual = svelte.parse(input, options);
fs.writeFileSync(outputFile, JSON.stringify(actual, null, '\t'));
assert.deepEqual(actual.html, expectedOutput.html);
assert.deepEqual(actual.css, expectedOutput.css);
assert.deepEqual(actual.js, expectedOutput.js);
} catch (err) {
if (err.name !== 'ParseError') throw err;
if (!expectedError) throw err;
try {
assert.equal(err.code, expectedError.code);
assert.equal(err.message, expectedError.message);
assert.deepEqual(err.loc, expectedError.loc);
assert.equal(err.pos, expectedError.pos);
assert.equal(err.toString().split('\n')[0], `${expectedError.message} (${expectedError.loc.line}:${expectedError.loc.column})`);
} catch (err2) {
const e = err2.code === 'MODULE_NOT_FOUND' ? err : err2;
throw e;
}
}
}
// TODO remove v1 tests
test(
options,
fs.readFileSync(`test/parser/samples/${dir}/input.html`, 'utf-8').replace(/\s+$/, ''),
tryToLoadJson(`test/parser/samples/${dir}/output.json`),
tryToLoadJson(`test/parser/samples/${dir}/error.json`),
`test/parser/samples/${dir}/_actual.json`
);
test(
Object.assign({ parser: 'v2' }, options),
fs.readFileSync(`test/parser/samples/${dir}/input-v2.html`, 'utf-8').replace(/\s+$/, ''),
tryToLoadJson(`test/parser/samples/${dir}/output-v2.json`),
tryToLoadJson(`test/parser/samples/${dir}/error-v2.json`),
`test/parser/samples/${dir}/_actual-v2.json`
);
});
});
it('handles errors with options.onerror', () => {
let errored = false;
svelte.compile(`<h1>unclosed`, {
onerror(err) {
errored = true;
assert.equal(err.message, `<h1> was left open`);
}
});
assert.ok(errored);
});
it('throws without options.onerror', () => {
assert.throws(() => {
svelte.compile(`<h1>unclosed`);
}, /<h1> was left open/);
});
it('includes AST in svelte.compile output', () => {
const source = fs.readFileSync(`test/parser/samples/attribute-dynamic/input.html`, 'utf-8');
const { ast } = svelte.compile(source);
const parsed = svelte.parse(source);
assert.deepEqual(ast, parsed);
});
});