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testGeneration.js
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452 lines (341 loc) · 15.2 KB
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(function () {
var esprima = require('esprima');
var estraverse = require('estraverse');
var fs = require('fs');
var execSync = require('child_process').execSync;
var generateFn = require('./utilities/generateFnBody.js').generateFn;
var findPositions = require('./utilities/inferringSignature.js').findPositions;
var Decisions = require('./utilities/randomGenerator.js').Decisions;
var utility = require('./utilities/dirUtility.js');
var typeOf = utility.typeOf;
var _ = require("underscore");
var fsextra = require('fs-extra')
var fnNames = process.argv[2];
var nbOfTests = process.argv[3];
var setup = process.argv[4];
var positionInference = Number(process.argv[5]);
var typesOfCallbacks = Number(process.argv[6]);
var dynAnalysis = Number(process.argv[7]);
var testFolder = process.argv[8];
var afterCallbackPaths = [];
if (process.argv.length < 9){
console.log('Usage: node testGeneration.js <function names> <number of tests> <setupCode> <feedback directed> <type of callacks> <include dynamic analysis> <test folder> <path to polyfills(optional)>');
process.exit(1);
}
var setupCode = fs.readFileSync(setup).toString();
var names = fnNames.split(' ');
var positions = [];
if (positionInference === 1) {
console.log("Discovery phase...")
positions = findPositions(setupCode, names);
console.log(positions)
}
var setupValues = getDefinedVal();
function getFeedback(test) {
var feedback = {'error': null};
try {
var output = execSync('timeout 5 node ' + test).toString();
} catch (e) {
feedback.error = e.message;
}
return feedback;
}
function Call(baseVar, argVars, retVar, filter) {
this.baseVar = baseVar;
this.filter = filter;
this.argVars = argVars;
this.retVar = retVar;
}
Call.prototype = {
toString: function () {
if (!this.filter) {
console.log(this);
}
if (typeOf(this.baseVar) === 'array' || typeOf(this.baseVar) === 'object') {
this.baseVar = JSON.stringify(this.baseVar)
}
return this.retVar + " = " + this.baseVar + "." + this.filter + "(" + this.argVars.slice(0, this.argVars.length) + ")";
},
clone: function () {
return new Call(this.baseVar, this.argVars, this.retVar, this.filter);
}
};
function VarStore(varToType) {
this.varToVal = {};
this.varToType = varToType;
}
VarStore.prototype = {
put: function (variable, val) {
this.varToVal[variable] = val;
this.varToType[variable] = typeOf(val);
},
get: function (variable) {
if (!this.varToVal.hasOwnProperty(variable)) throw "Undefined variable " + variable;
return this.varToVal[variable];
}
};
function Test() {
// static information
this.statements = [];
this.constantPool = {}; // variable identifier --> all values
this.lastVarCtr = 0;
this.varToType = {}; // string --> string
this.nbOfArgs = 0;
}
Test.prototype = {
freshVar: function (name) {
return "var " + name;
},
varForConstant: function (constant, name) {
var varName = name;
this.constantPool[varName] = constant;
return varName;
},
getLogs: function (fileName, base, result, baseArr, resultArr) {
var methodStr = "function serialize(array){\n" +
"return array.map(function(a){\n" +
"if (a === null || a == undefined) return a;\n" +
"var name = a.constructor.name;\n" +
"if (name==='Object' || name=='Boolean'|| name=='Array'||name=='Number'||name=='String')\n" +
"return JSON.stringify(a);\n" +
"return name;\n" +
" });\n" +
"}\n";
var logStr = 'setTimeout(function(){\n' +
'require("fs").writeFileSync("' + fileName + '",JSON.stringify({"baseObjects":serialize(' + baseArr + '),"returnObjects":serialize(' + resultArr + '),"callbackArgs":callbackArguments}))\n' +
'},300)';
return methodStr + logStr;
},
toString: function (pool, fnPool) {
var result = setupCode + '\n';
result += 'var callbackArguments = [];\n'
// constants
var constantVars = Object.keys(this.constantPool);
for (var j = 0; j < constantVars.length; j++) {
var constantVar = constantVars[j];
var constant = this.constantPool[constantVar];
var constantString = typeof constant === "string" && (setupValues.indexOf(constant) > -1 || constant.indexOf('function') > -1 || (pool && pool.indexOf(constant) > -1) || (fnPool && fnPool.indexOf(constant) > -1)) ? constant : "\"" + constant + "\"";
if (Array.isArray(constant) || (constant && typeOf(constant) === "object")) {
constantString = JSON.stringify(constant);
} else if (typeof constant === "boolean" || typeOf(constant) === 'null' || typeof constant === "number" || constant.indexOf('r_') == 0 || constant.indexOf('base_') == 0) {
constantString = constant;
}
result += "var " + constantVar + " = " + constantString + ";\n";
}
// statements
var lastReturnVar = null;
var lastBaseVar = null;
for (var i = 0; i < this.statements.length; i++) {
var statement = this.statements[i];
if (statement.baseVar && statement.retVar) {
var retVar = statement.retVar;
lastReturnVar = retVar;
lastBaseVar = statement.baseVar;
result += 'try {' + '\n' + statement + '\n}\n' + "catch(e) {" + '\n' + retVar + "= \'Error\'" + '\n' + "}" + '\n';
} else {
result += statement + "\n";
}
}
return result;
},
clone: function () {
var clonedTest = new Test();
clonedTest.nbOfArgs = this.nbOfArgs;
for (var i = 0; i < this.statements.length; i++) {
var statement = this.statements[i];
clonedTest.statements.push(_.clone(statement));
}
clonedTest.constantPool = _.clone(this.constantPool);
clonedTest.lastVarCtr = this.lastVarCtr;
clonedTest.varToType = JSON.parse(JSON.stringify(this.varToType));
return clonedTest;
}
};
function AppendAPICallTask(test) {
this.test = test;
}
AppendAPICallTask.prototype.createCandidate = function (fnName, pool, fnPool, baseVar, retVar, nbOfCall) {
var candidateTest = this.test.clone();
var argVars = [];
//pick random position
var callpositions = getElFromMap(fnName);
var callbackPosition = callpositions.length > 0 ? pickRandomEl(callpositions) : undefined;
var nbOfArgs = callbackPosition !== undefined ? decisions.pickRandomNbOfArgs(callbackPosition) : decisions.pickRandomNbOfArgs(0);
var newBase = pool.length > 0 ? pickRandomEl(pool) : decisions.pickRandomConstant(pickRandomEl(decisions.constantTypes))
var start = candidateTest.nbOfArgs;
for (var argIdx = start + 1; argIdx <= nbOfArgs + start; argIdx++) {
var name = 'argument' + argIdx;
if (argIdx - start === callbackPosition) {
var position = argIdx;
//here I fetch functions
var f = generateFn(typesOfCallbacks, decisions, fnPool, afterCallbackPaths, fnName, start + 1, nbOfArgs,nbOfCall,position);
argVars.push(candidateTest.varForConstant(f, name));
} else {
if (positionInference === 0) {
var randomType = pickRandomEl(decisions.constantTypes)
var value = decisions.pickRandomConstant(randomType);
argVars.push(candidateTest.varForConstant(value, name));
} else {
if (decisions.pickRandomBoolean() === true && fnPool.length > 0) {
var exVal = pickRandomEl(fnPool);
argVars.push(candidateTest.varForConstant(exVal, name));
} else {
var randomType = pickRandomEl(decisions.constantTypes)
var value = decisions.pickRandomConstant(randomType);
argVars.push(candidateTest.varForConstant(value, name));
}
}
}
}
if (typeOf(newBase) === 'array' || typeOf(newBase) === 'object') {
newBase = JSON.stringify(newBase)
} else if (typeOf(newBase) === 'string' && setupValues.indexOf(newBase) === -1 && pool.indexOf(newBase) === -1) {
newBase = "\"" + newBase + "\""
}
candidateTest.statements.push('var ' + baseVar + ' = ' + newBase);
var call = new Call(baseVar, argVars, retVar, fnName);
candidateTest.statements.push('var ' + retVar + '= undefined');
candidateTest.statements.push(call);
candidateTest.nbOfArgs += nbOfArgs;
return candidateTest;
};
function pickRandomEl(arr) {
return arr[Math.floor(Math.random() * arr.length)];
}
function getElFromMap(fnName) {
for (var i = 0; i < positions.length; i++) {
if (positions[i]['name'] && positions[i]['name'] === fnName) {
return positions[i]['positions'];
}
}
return [];
}
function getDefinedVal() {
var pool = [];
var ast = esprima.parse(setupCode);
estraverse.traverse(ast, {
enter: function (node, parent) {
if (node.type === 'VariableDeclarator' && node.init && (!node.init.callee || node.init.callee.name !== 'require')) {
pool.push(node.id.name)
}
}
})
return pool;
}
function getRandomBase(fnName) {
for (var i = 0; i < decisions.constantTypes.length; i++) {
var type = decisions.constantTypes[i];
var randomObj = decisions.pickRandomConstant(type);
if (randomObj && randomObj[fnName] && typeof randomObj[fnName] === 'function') {
return randomObj;
}
}
return undefined;
}
//this can be extended
function extendPool(pool) {
for (var i = 0; i < decisions.constantTypes.length; i++) {
var type = decisions.constantTypes[i];
if (type === 'null' || type === 'undefined' || type === 'boolean') {
var el = decisions.pickRandomConstant(type);
pool.push(el);
}
}
return pool;
}
function makeStr(arr) {
var str = '[';
for (var i = 0; i < arr.length; i++) {
if (i == (arr.length - 1)) {
str += arr[i] + ']';
} else {
str += arr[i] + ',';
}
}
return str;
}
var decisions = new Decisions();
fs.mkdirSync('./' + testFolder);
if (dynAnalysis === 1) {
fs.mkdirSync('./generated_' + testFolder);
}
var tests = [];
for (var i = 0; i < nbOfTests; i++) {
tests.push(i);
}
console.log("Test generation phase....")
for (var i = 0; i < nbOfTests; i++) {
var testName = './' + testFolder + '/test' + i + '.js';
var testJSON = './' + testFolder + '/test' + i + '.json';
var test = new Test();
var fnPool = extendPool(JSON.parse(JSON.stringify(setupValues)));
var pool = setupValues.length > 0 ? JSON.parse(JSON.stringify(setupValues)) : [];
var retVar = undefined;
var baseVar = undefined;
var toContinue = true;
var baseArr = [];
var retArr = [];
if (positionInference === 0) {
//just one call
var fnName = pickRandomEl(names);
if (pool.length === 0) {
pool.push(getRandomBase(fnName))
}
retVar = 'r_0';
baseVar = 'base_0';
baseArr.push(baseVar);
retArr.push(retVar);
test = new AppendAPICallTask(test).createCandidate(fnName, pool, fnPool, baseVar, retVar, 0);
var testCode = test.toString() + test.getLogs(testJSON, baseVar, retVar, makeStr(baseArr), makeStr(retArr));
fs.writeFileSync(testName, testCode);
execSync('node ' + testName)
} else {
//up to 4 attempts
for (var j = 0; j < 4; j++) {
if (toContinue == false) break;
retVar = 'r_' + j;
baseVar = 'base_' + j;
baseArr.push(baseVar);
retArr.push(retVar);
var fnName = pickRandomEl(names);
if (pool.length === 0) {
pool.push(getRandomBase(fnName))
}
if (decisions.pickRandomBoolean() === true) {
fnPool.push(retVar);
}
test = new AppendAPICallTask(test).createCandidate(fnName, pool, fnPool, baseVar, retVar, j);
var testCode = test.toString(pool, fnPool) + test.getLogs(testJSON, baseVar, retVar, makeStr(baseArr), makeStr(retArr));
fs.writeFileSync(testName, testCode);
if (positionInference === 1) {
var feedback = getFeedback(testName);
pool.push(retVar)
if (fnPool.indexOf(retVar) === -1){
fnPool.push(retVar)
}
if (feedback.error !== null) {
toContinue = false;
}
if (dynAnalysis === 1) {
var models = process.argv[9].split(' ');
//update paths
for (var k = 0; k < models.length; k++) {
var model = models[k];
var requireModel = 'model_'+k+'.js';
fsextra.copySync(model,'./generated_'+testFolder+'/'+requireModel)
var strCode = 'require("./' + requireModel + '")\n';
strCode += test.toString();
var file1Name = './generated_' + testFolder + '/test' + i + '_model' + k + '.js';
fs.writeFileSync(file1Name, strCode);
execSync('timeout 5 node ../jalangi2/src/js/commands/jalangi.js --inlineIID --inlineSource --analysis dynamicAnalysis.js ' + file1Name + ' ' + fnName + ' ' + testFolder);
afterCallbackPaths = JSON.parse(fs.readFileSync('./generated_' + testFolder + '/pathsAfterCallback.json'));
}
}
}
}
}
}
if (dynAnalysis === 1){
utility.deleteFolder('./generated_' + testFolder);
}
})();