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 sqlite3_update_hook

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patching.test.js

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var sqlite3 = require('..');

var assert = require('assert');

describe('patching', function() {

describe("Database", function() {

var db;

var originalFunctions = {};

before(function() {

originalFunctions.close = sqlite3.Database.prototype.close;

originalFunctions.exec = sqlite3.Database.prototype.exec;

originalFunctions.wait = sqlite3.Database.prototype.wait;

originalFunctions.loadExtension = sqlite3.Database.prototype.loadExtension;

originalFunctions.serialize = sqlite3.Database.prototype.serialize;

originalFunctions.parallelize = sqlite3.Database.prototype.parallelize;

originalFunctions.configure = sqlite3.Database.prototype.configure;

originalFunctions.interrupt = sqlite3.Database.prototype.interrupt;

});

it('allow patching native functions', function() {

var myFun = function myFunction() {

return "Success";

}

assert.doesNotThrow(() => {

sqlite3.Database.prototype.close = myFun;

});

assert.doesNotThrow(() => {

sqlite3.Database.prototype.exec = myFun;

});

assert.doesNotThrow(() => {

sqlite3.Database.prototype.wait = myFun;

});

assert.doesNotThrow(() => {

sqlite3.Database.prototype.loadExtension = myFun;

});

assert.doesNotThrow(() => {

sqlite3.Database.prototype.serialize = myFun;

});

assert.doesNotThrow(() => {

sqlite3.Database.prototype.parallelize = myFun;

});

assert.doesNotThrow(() => {

sqlite3.Database.prototype.configure = myFun;

});

assert.doesNotThrow(() => {

sqlite3.Database.prototype.interrupt = myFun;

});

db = new sqlite3.Database(':memory:');

assert.strictEqual(db.close(), "Success");

assert.strictEqual(db.exec(), "Success");

assert.strictEqual(db.wait(), "Success");

assert.strictEqual(db.loadExtension(), "Success");

assert.strictEqual(db.serialize(), "Success");

assert.strictEqual(db.parallelize(), "Success");

assert.strictEqual(db.configure(), "Success");

assert.strictEqual(db.interrupt(), "Success");

});

after(function() {

if(db != null) {

sqlite3.Database.prototype.close = originalFunctions.close;

sqlite3.Database.prototype.exec = originalFunctions.exec;

sqlite3.Database.prototype.wait = originalFunctions.wait;

sqlite3.Database.prototype.loadExtension = originalFunctions.loadExtension;

sqlite3.Database.prototype.serialize = originalFunctions.serialize;

sqlite3.Database.prototype.parallelize = originalFunctions.parallelize;

sqlite3.Database.prototype.configure = originalFunctions.configure;

sqlite3.Database.prototype.interrupt = originalFunctions.interrupt;

db.close();

}

});

});

describe('Statement', function() {

var db;

var statement;

var originalFunctions = {};

before(function() {

originalFunctions.bind = sqlite3.Statement.prototype.bind;

originalFunctions.get = sqlite3.Statement.prototype.get;

originalFunctions.run = sqlite3.Statement.prototype.run;

originalFunctions.all = sqlite3.Statement.prototype.all;

originalFunctions.each = sqlite3.Statement.prototype.each;

originalFunctions.reset = sqlite3.Statement.prototype.reset;

originalFunctions.finalize = sqlite3.Statement.prototype.finalize;

});

it('allow patching native functions', function() {

var myFun = function myFunction() {

return "Success";

}

assert.doesNotThrow(() => {

sqlite3.Statement.prototype.bind = myFun;

});

assert.doesNotThrow(() => {

sqlite3.Statement.prototype.get = myFun;

});

assert.doesNotThrow(() => {

sqlite3.Statement.prototype.run = myFun;

});

assert.doesNotThrow(() => {

sqlite3.Statement.prototype.all = myFun;

});

assert.doesNotThrow(() => {

sqlite3.Statement.prototype.each = myFun;

});

assert.doesNotThrow(() => {

sqlite3.Statement.prototype.reset = myFun;

});

assert.doesNotThrow(() => {

sqlite3.Statement.prototype.finalize = myFun;

});

db = new sqlite3.Database(':memory:');

statement = db.prepare("");

assert.strictEqual(statement.bind(), "Success");

assert.strictEqual(statement.get(), "Success");

assert.strictEqual(statement.run(), "Success");

assert.strictEqual(statement.all(), "Success");

assert.strictEqual(statement.each(), "Success");

assert.strictEqual(statement.reset(), "Success");

assert.strictEqual(statement.finalize(), "Success");

});

after(function() {

if(statement != null) {

sqlite3.Statement.prototype.bind = originalFunctions.bind;

sqlite3.Statement.prototype.get = originalFunctions.get;

sqlite3.Statement.prototype.run = originalFunctions.run;

sqlite3.Statement.prototype.all = originalFunctions.all;

sqlite3.Statement.prototype.each = originalFunctions.each;

sqlite3.Statement.prototype.reset = originalFunctions.reset;

sqlite3.Statement.prototype.finalize = originalFunctions.finalize;

}

if(db != null) {

db.close();

}

});

});

describe('Backup', function() {

var db;

var backup;

var originalFunctions = {};

before(function() {

originalFunctions.step = sqlite3.Backup.prototype.step;

originalFunctions.finish = sqlite3.Backup.prototype.finish;

});

it('allow patching native functions', function() {

var myFun = function myFunction() {

return "Success";

}

assert.doesNotThrow(() => {

sqlite3.Backup.prototype.step = myFun;

});

assert.doesNotThrow(() => {

sqlite3.Backup.prototype.finish = myFun;

});

db = new sqlite3.Database(':memory:');

backup = db.backup("somefile", myFun);

assert.strictEqual(backup.step(), "Success");

assert.strictEqual(backup.finish(), "Success");

});

after(function() {

if(backup != null) {

sqlite3.Backup.prototype.step = originalFunctions.step;

sqlite3.Backup.prototype.finish = originalFunctions.finish;

backup.finish();

}

if(db != null) {

db.close();

}

});

});

});