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'use strict';
require('../common');
const ArrayStream = require('../common/arraystream');
const fixtures = require('../common/fixtures');
const assert = require('assert');
const repl = require('repl');
const stackRegExp = /(REPL\d+):[0-9]+:[0-9]+/g;
function run({ command, expected }) {
let accum = '';
const inputStream = new ArrayStream();
const outputStream = new ArrayStream();
outputStream.write = (data) => accum += data.replace('\r', '');
const r = repl.start({
prompt: '',
input: inputStream,
output: outputStream,
terminal: false,
useColors: false
});
r.write(`${command}\n`);
assert.strictEqual(
accum.replace(stackRegExp, '$1:*:*'),
expected.replace(stackRegExp, '$1:*:*')
);
r.close();
}
const origPrepareStackTrace = Error.prepareStackTrace;
Error.prepareStackTrace = (err, stack) => {
if (err instanceof SyntaxError)
return err.toString();
stack.push(err);
return stack.reverse().join('--->\n');
};
process.on('uncaughtException', (e) => {
Error.prepareStackTrace = origPrepareStackTrace;
throw e;
});
const tests = [
{
// test .load for a file that throws
command: `.load ${fixtures.path('repl-pretty-stack.js')}`,
expected: 'Uncaught Error: Whoops!--->\nREPL1:*:*--->\nd (REPL1:*:*)' +
'--->\nc (REPL1:*:*)--->\nb (REPL1:*:*)--->\na (REPL1:*:*)\n'
},
{
command: 'let x y;',
expected: 'let x y;\n ^\n\n' +
'Uncaught SyntaxError: Unexpected identifier\n'
},
{
command: 'throw new Error(\'Whoops!\')',
expected: 'Uncaught Error: Whoops!\n'
},
{
command: 'foo = bar;',
expected: 'Uncaught ReferenceError: bar is not defined\n'
},
// test anonymous IIFE
{
command: '(function() { throw new Error(\'Whoops!\'); })()',
expected: 'Uncaught Error: Whoops!--->\nREPL5:*:*\n'
},
];
tests.forEach(run);
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