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'use strict';
require('../common');
const assert = require('assert');
const Stream = require('stream');
const repl = require('repl');
const tests = [
testSloppyMode,
testStrictMode,
testAutoMode
];
tests.forEach(function(test) {
test();
});
function testSloppyMode() {
const cli = initRepl(repl.REPL_MODE_SLOPPY);
cli.input.emit('data', 'x = 3\n');
assert.strictEqual(cli.output.accumulator.join(''), '> 3\n> ');
cli.output.accumulator.length = 0;
cli.input.emit('data', 'let y = 3\n');
assert.strictEqual(cli.output.accumulator.join(''), 'undefined\n> ');
}
function testStrictMode() {
const cli = initRepl(repl.REPL_MODE_STRICT);
cli.input.emit('data', 'x = 3\n');
assert.ok(/ReferenceError: x is not defined/.test(
cli.output.accumulator.join('')));
cli.output.accumulator.length = 0;
cli.input.emit('data', 'let y = 3\n');
assert.strictEqual(cli.output.accumulator.join(''), 'undefined\n> ');
}
function testAutoMode() {
const cli = initRepl(repl.REPL_MODE_MAGIC);
cli.input.emit('data', 'x = 3\n');
assert.strictEqual(cli.output.accumulator.join(''), '> 3\n> ');
cli.output.accumulator.length = 0;
cli.input.emit('data', 'let y = 3\n');
assert.strictEqual(cli.output.accumulator.join(''), 'undefined\n> ');
}
function initRepl(mode) {
const input = new Stream();
input.write = input.pause = input.resume = () => {};
input.readable = true;
const output = new Stream();
output.write = output.pause = output.resume = function(buf) {
output.accumulator.push(buf);
};
output.accumulator = [];
output.writable = true;
return repl.start({
input: input,
output: output,
useColors: false,
terminal: false,
replMode: mode
});
}