How to use txn1 method in wpt

Best JavaScript code snippet using wpt

transaction-test.js

Source:transaction-test.js Github

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1'use strict';2const assert = require('bsert');3const fs = require('fs');4const {testdir, rmTreeDir, randomKey} = require('./util/common');5const nurkel = require('..');6const {Proof} = nurkel;7const NULL_HASH = Buffer.alloc(32, 0);8for (const memory of [false, true]) {9describe(`Urkel Transaction (${memory ? 'MemTree' : 'Tree'})`, function () {10 if (!global.gc)11 this.skip();12 let prefix, tree;13 beforeEach(async () => {14 prefix = testdir('tx');15 if (!memory)16 fs.mkdirSync(prefix);17 tree = nurkel.create({ memory, prefix });18 await tree.open();19 });20 afterEach(async () => {21 await tree.close();22 if (fs.existsSync(prefix))23 rmTreeDir(prefix);24 });25 it('should get the root', async () => {26 const txn1 = tree.txn();27 await txn1.open();28 assert.bufferEqual(txn1.txRootHashSync(), NULL_HASH);29 assert.bufferEqual(await txn1.txRootHash(), NULL_HASH);30 });31 it('should insert and get the key (sync)', async () => {32 if (!tree.supportsSync)33 this.skip();34 const txn1 = tree.txn();35 await txn1.open();36 const key1 = randomKey();37 const value = Buffer.from('Hello !');38 assert.strictEqual(txn1.hasSync(key1), false);39 txn1.insertSync(key1, value);40 assert.strictEqual(txn1.hasSync(key1), true);41 const resValue = txn1.getSync(key1);42 assert.bufferEqual(resValue, value);43 txn1.removeSync(key1);44 assert.strictEqual(txn1.hasSync(key1), false);45 assert.strictEqual(txn1.getSync(key1), null);46 await txn1.close();47 });48 it('should insert and get the key', async () => {49 const txn1 = tree.txn();50 await txn1.open();51 const key1 = randomKey();52 const value = Buffer.from('Hello !');53 assert.strictEqual(await txn1.has(key1), false);54 await txn1.insert(key1, value);55 assert.strictEqual(await txn1.has(key1), true);56 const resValue = await txn1.get(key1);57 assert.bufferEqual(resValue, value);58 await txn1.remove(key1);59 assert.strictEqual(await txn1.has(key1), false);60 assert.strictEqual(await txn1.get(key1), null);61 await txn1.close();62 });63 it('should generate proofs', async () => {64 const txn1 = tree.txn();65 await txn1.open();66 const pairs = new Map();67 for (let i = 0; i < 10; i++) {68 const key = randomKey();69 const value = Buffer.from(`Hello ${i}.`);70 pairs.set(key.toString('hex'), value);71 await txn1.insert(key, value);72 }73 for (const keyHex of pairs.keys()) {74 const key = Buffer.from(keyHex, 'hex');75 const proof = await txn1.prove(key);76 assert(Proof.isProof(proof));77 assert(Buffer.isBuffer(proof.raw));78 if (tree.supportsSync) {79 const proofS = txn1.proveSync(key);80 assert.bufferEqual(proof.raw, proofS.raw);81 }82 }83 await txn1.close();84 });85 it('should clear the transaction', async () => {86 const txn1 = tree.txn();87 await txn1.open();88 assert.bufferEqual(txn1.rootHash(), NULL_HASH);89 for (let i = 0; i < 10; i++) {90 const key = randomKey();91 const value = Buffer.from(`Hello ${i}.`);92 await txn1.insert(key, value);93 }94 assert.notBufferEqual(txn1.rootHash(), NULL_HASH);95 await txn1.clear();96 assert.bufferEqual(txn1.rootHash(), NULL_HASH);97 for (let i = 0; i < 10; i++) {98 const key = randomKey();99 const value = Buffer.from(`Hello ${i}.`);100 await txn1.insert(key, value);101 }102 txn1.clearSync();103 assert.bufferEqual(txn1.rootHash(), NULL_HASH);104 });105 it('should inject', async () => {106 // 5 roots with 5 entries107 const ROOTS = 5;108 const ENTRIES = 5;109 const roots = [];110 const entriesByRoot = [];111 const txn = tree.batch();112 await txn.open();113 for (let i = 0; i < ROOTS; i++) {114 const entries = [];115 for (let j = 0; j < ENTRIES; j++) {116 const key = randomKey();117 const value = Buffer.from(`value ${i * 10 + j}.`);118 entries.push([key, value]);119 await txn.insert(key, value);120 }121 roots.push(await txn.commit());122 entriesByRoot.push(entries);123 }124 await txn.close();125 const last = tree.rootHash();126 const snap = tree.snapshot();127 await snap.open();128 for (let i = ROOTS - 1; i >= 0; i--) {129 // go to the past.130 await snap.inject(roots[i]);131 for (const [rootIndex, entries] of entriesByRoot.entries()) {132 if (rootIndex > i) {133 for (const [key] of entries) {134 assert.strictEqual(await snap.has(key), false);135 assert.strictEqual(await snap.get(key), null);136 if (tree.supportsSync) {137 assert.strictEqual(snap.hasSync(key), false);138 assert.strictEqual(snap.getSync(key), null);139 }140 }141 } else {142 for (const [key, value] of entries) {143 assert.strictEqual(await snap.has(key), true);144 assert.bufferEqual(await snap.get(key), value);145 if (tree.supportsSync) {146 assert.strictEqual(snap.hasSync(key), true);147 assert.bufferEqual(snap.getSync(key), value);148 }149 }150 }151 }152 }153 await snap.inject(last);154 for (const [key, value] of entriesByRoot.flat()) {155 assert.strictEqual(await snap.has(key), true);156 assert.bufferEqual(await snap.get(key), value);157 if (tree.supportsSync) {158 assert.strictEqual(snap.hasSync(key), true);159 assert.bufferEqual(snap.getSync(key), value);160 }161 }162 for (let i = ROOTS - 1; i >= 0; i--) {163 // go to the past.164 await snap.inject(roots[i]);165 for (const [rootIndex, entries] of entriesByRoot.entries()) {166 if (rootIndex > i) {167 for (const [key] of entries) {168 assert.strictEqual(await snap.has(key), false);169 assert.strictEqual(await snap.get(key), null);170 if (tree.supportsSync) {171 assert.strictEqual(snap.hasSync(key), false);172 assert.strictEqual(snap.getSync(key), null);173 }174 }175 } else {176 for (const [key, value] of entries) {177 assert.strictEqual(await snap.has(key), true);178 assert.bufferEqual(await snap.get(key), value);179 if (tree.supportsSync) {180 assert.strictEqual(snap.hasSync(key), true);181 assert.bufferEqual(snap.getSync(key), value);182 }183 }184 }185 }186 }187 await snap.inject(last);188 for (const [key, value] of entriesByRoot.flat()) {189 assert.strictEqual(await snap.has(key), true);190 assert.bufferEqual(await snap.get(key), value);191 if (tree.supportsSync) {192 assert.strictEqual(snap.hasSync(key), true);193 assert.bufferEqual(snap.getSync(key), value);194 }195 }196 await snap.close();197 });198});...

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transactions.vows.js

Source:transactions.vows.js Github

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1var vows = require("vows"),2 usingClient = require("./utils").usingClient.gen(),3 assert = require("assert"),4 redis = require("../lib/redis");5var sys = require("sys");6vows.describe("Redis Transactions").addBatch({7 'with proper syntax': usingClient({8 topic: function (client) {9 var simultClient = this.simultClient = redis.createClient();10 simultClient.select(6);11 var self = this;12 client.transaction( function () {13 client.rpush("txn1", 1);14 client.rpush("txn1", 2);15 client.rpush("txn1", 3, self.callback);16 });17 },18 'should result in changes': function (err, count) {19 assert.equal(count, 3);20 },21 teardown: function () {22 this.simultClient.close();23 delete this.simultClient;24 }25 }),26 'with proper syntax with multibulk': usingClient({27 topic: function (client) {28 var self = this;29 client.rpush("txn1-a", 1);30 client.rpush("txn1-a", 2);31 client.rpush("txn1-a", 3);32 client.transaction( function () {33 client.lrange("txn1-a", 0, -1, self.callback); 34 });35 },36 'should return the correct list': function (err, list) {37 assert.deepEqual(list, [1,2,3]);38 }39 }),40 'with commands that require special reply interpretation': usingClient({41 topic: function (client) {42 var self = this;43 client.zadd("txn1-b", 1, 1);44 client.zadd("txn1-b", 2, 2);45 client.zadd("txn1-b", 3, 3);46 client.transaction( function () {47 client.zrange("txn1-b", 0, -1, self.callback); 48 });49 },50 'should return the correct result': function (err, list) {51 assert.deepEqual(list, [1, 2, 3]);52 }53 }),54 'with hgetall': usingClient({55 topic: function (client) {56 var self = this;57 client.hmset("txn1-c", {a: 1, b: 2});58 client.transaction( function () {59 client.hget("txn1-c", "a"); 60 client.hget("txn1-c", "b"); 61 client.hgetall("txn1-c", self.callback); 62 });63 },64 'should transform the result just as it would outside a transaction': function (err, hash) {65 assert.deepEqual(hash, {a: 1, b: 2});66 }67 }),68 'nested': usingClient({69 topic: function (client) {70 var self = this;71 client.transaction( function () {72 client.rpush("nested-txn", "a");73 client.transaction( function () {74 client.rpush("nested-txn", "b");75 });76 client.rpush("nested-txn", "c");77 client.rpush("nested-txn", "d", self.callback);78 });79 },80 'should result in changes': function (err, count) {81 assert.equal(count, 4);82 }83 }),84 'with improper syntax': usingClient({85 topic: function (client) {86 client.transaction( function () {87 client.rpush("txn-invalid", 1);88 client.rpush("txn-invalid", 2);89 client.rpush("txn-invalid");90 // simultClient.rpush("txn", 4, function (err, count) {91 // if (err) throw new Error(err);92 // checkEqual(count, 4, "Commands from other clients should fire after a transaction from a competing client");93 // });94 });95 client.exists("txn-invalid", this.callback);96 },97 // Atomicity98 'should roll back the transaction': function (err, result) {99 assert.equal(result, 0);100 }101 // TODO Should throw an error to notify user of failed transaction102 })...

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example3-multiple-transactions.js

Source:example3-multiple-transactions.js Github

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1var lmdb = require('./build/Release/node-lmdb');2var env = new lmdb.Env();3env.open({4 // Path to the environment5 path: "./testdata",6 // Maximum number of databases7 maxDbs: 108});9var dbi = env.openDbi({10 name: "mydb3",11 create: true,12 keyIsUint32: true13});14var data;15// Write values16var txn0 = env.beginTxn();17txn0.putString(dbi, 1, "Hello1");18txn0.putString(dbi, 2, "Hello2");19txn0.commit();20console.log("wrote initial values");21// Now mess around with transactions22var txn1 = env.beginTxn({ readOnly: true });23console.log("txn1: started (read only)");24data = txn1.getString(dbi, 1);25console.log("-----", "txn1", 1, data);26var txn2 = env.beginTxn();27console.log("txn2: started");28txn2.putString(dbi, 1, "Ha ha ha");29console.log("txn2: put other value to key 1");30// txn2 sees the new value immediately31data = txn2.getString(dbi, 1);32console.log("-----", "txn2", 1, data);33// txn1 still sees the old value34data = txn1.getString(dbi, 1);35console.log("-----", "txn1", 1, data);36txn2.commit();37console.log("txn2: committed");38// txn1 still sees the old value!39data = txn1.getString(dbi, 1);40console.log("-----", "txn1", 1, data);41txn1.reset();42txn1.renew();43console.log("rxn1: reset+renewed");44// now txn1 sees the new value45data = txn1.getString(dbi, 1);46console.log("-----", "txn1", 1, data);47try {48 console.log("error expected here:");49 // txn1 is readonly, this will throw an exception!50 txn1.putString(dbi, 2, "hööhh");51}52catch (err) {53 console.log(err);54}55txn1.commit();56console.log("txn1: aborted");57dbi.close();...

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Using AI Code Generation

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1require('wpt1').txn1();2require('wpt1').txn2();3require('wpt2').txn1();4require('wpt2').txn2();5require('wpt3').txn1();6require('wpt3').txn2();7require('wpt4').txn1();8require('wpt4').txn2();9require('wpt5').txn1();10require('wpt5').txn2();11require('wpt6').txn1();12require('wpt6').txn2();13require('wpt7').txn1();14require('wpt7').txn2();15require('wpt8').txn1();16require('wpt8').txn2();17require('wpt9').txn1();18require('wpt9').txn2();19require('wpt10').txn1();20require('wpt10').txn2();21require('wpt11').txn1();22require('wpt11').txn2();23require('wpt12').txn1();24require('wpt12').txn2();

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Using AI Code Generation

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1var txn1 = require('./wptxns.js').txn1;2var txn2 = require('./wptxns.js').txn2;3var txn3 = require('./wptxns.js').txn3;4var txn4 = require('./wptxns.js').txn4;5var txn5 = require('./wptxns.js').txn5;6var txn6 = require('./wptxns.js').txn6;7var txn7 = require('./wptxns.js').txn7;8var txn8 = require('./wptxns.js').txn8;9var txn9 = require('./wptxns.js').txn9;10var txn10 = require('./wptxns.js').txn10;11var txn11 = require('./wptxns.js').txn11;12var txn12 = require('./wptxns.js').txn12;13var txn13 = require('./wptxns.js').txn13;14var txn14 = require('./wptxns.js').txn14;15var txn15 = require('./wptxns.js').txn15;16var txn16 = require('./wptxns.js').txn16;17var txn17 = require('./wptxns.js').txn17;

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Using AI Code Generation

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1var wpt2 = require('./wpt2.js');2var txn1 = wpt2.txn1();3txn1();4var txn1 = function() {5 return function() {6 console.log('txn1');7 }8}9exports.txn1 = txn1;10var txn2 = function() {11 return function() {12 console.log('txn2');13 }14}15exports.txn2 = txn2;

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Using AI Code Generation

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1var wpt = require('wpt');2var txn1 = wpt.txn1;3 if (err) {4 console.log(err);5 } else {6 console.log(data);7 }8});9var wpt = require('wpt');10var txn2 = wpt.txn2;11 if (err) {12 console.log(err);13 } else {14 console.log(data);15 }16});17var wpt = require('wpt');18var txn3 = wpt.txn3;19 if (err) {20 console.log(err);21 } else {22 console.log(data);23 }24});25var wpt = require('wpt');26var txn4 = wpt.txn4;27 if (err) {28 console.log(err);29 } else {30 console.log(data);31 }32});33var wpt = require('wpt');34var txn5 = wpt.txn5;35 if (err) {36 console.log(err);37 } else {38 console.log(data);39 }40});41var wpt = require('wpt');42var txn6 = wpt.txn6;43 if (err) {44 console.log(err);45 } else {46 console.log(data);47 }48});49var wpt = require('wpt');50var txn7 = wpt.txn7;51 if (err) {

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Using AI Code Generation

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1var wpt = require('wpt');2var test = new wpt('your key here');3 console.log(data);4});5var wpt = require('wpt');6var test = new wpt('your key here');7 console.log(data);8});9var wpt = require('wpt');10var test = new wpt('your key here');11 console.log(data);12});13var wpt = require('wpt');14var test = new wpt('your key here');15 console.log(data);16});17var wpt = require('wpt');18var test = new wpt('your key here');19 console.log(data);20});21var wpt = require('wpt');22var test = new wpt('your key here');23 console.log(data);24});25var wpt = require('wpt');26var test = new wpt('your key here');27 console.log(data);28});29var wpt = require('wpt');30var test = new wpt('your key here');31 console.log(data);32});33var wpt = require('wpt');

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