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// Copyright 2020 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/**
* @fileoverview Test all expressions in DB.
*/
const fs = require('fs');
const fsPath = require('path');
const program = require('commander');
const sinon = require('sinon');
const crossOverMutator = require('./mutators/crossover_mutator.js');
const db = require('./db.js');
const random = require('./random.js');
const sourceHelpers = require('./source_helpers.js');
const sandbox = sinon.createSandbox();
function main() {
program
.version('0.0.1')
.option('-i, --input_dir <path>', 'DB directory.')
.parse(process.argv);
if (!program.input_dir) {
console.log('Need to specify DB dir.');
return;
}
const loader = new sourceHelpers.V8SourceLoader();
const mutateDb = new db.MutateDb(program.input_dir);
const mutator = new crossOverMutator.CrossOverMutator(
{ MUTATE_CROSSOVER_INSERT: 1.0, testing: true }, mutateDb);
let nPass = 0;
let nFail = 0;
// Iterate over all statements saved in the DB.
for (const statementPath of mutateDb.index.all) {
const expression = JSON.parse(fs.readFileSync(
fsPath.join(program.input_dir, statementPath)), 'utf-8');
// Stub out choosing random variables in cross-over mutator.
sandbox.stub(random, 'single').callsFake((a) => { return a[0]; });
// Ensure we are selecting the statement of the current iteration.
sandbox.stub(mutateDb, 'getRandomStatement').callsFake(
() => { return expression; });
// Use a source that will try to insert one statement, allowing
// super.
const source = loader.load(
__dirname,
'test_data/regress/build_db/cross_over_mutator_class_input.js');
try {
mutator.mutate(source);
nPass++;
} catch (e) {
console.log('******************************************************')
console.log(expression);
console.log(e.message);
nFail++;
}
sandbox.restore();
}
console.log(`Result: ${nPass} passed, ${nFail} failed.`)
}
main();
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