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270 lines
12 KiB
JavaScript
270 lines
12 KiB
JavaScript
var async = require('async');
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var assert = require('assert');
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var config = require("../../lib/config");
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var nodeAssert = require('../../lib/nodeify-assertions');
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var redis = config.redis;
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var RedisProcess = require("../../lib/redis-process");
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var uuid = require('uuid');
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describe("The 'multi' method", function () {
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var rp;
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before(function (done) {
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RedisProcess.start(function (err, _rp) {
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rp = _rp;
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return done(err);
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});
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})
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function removeMochaListener () {
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var mochaListener = process.listeners('uncaughtException').pop();
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process.removeListener('uncaughtException', mochaListener);
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return mochaListener;
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}
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function allTests(parser, ip) {
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var args = config.configureClient(parser, ip);
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describe("using " + parser + " and " + ip, function () {
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var key, value;
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beforeEach(function () {
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key = uuid.v4();
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value = uuid.v4();
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});
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describe("when not connected", function () {
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var client;
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beforeEach(function (done) {
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client = redis.createClient.apply(redis.createClient, args);
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client.once("error", done);
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client.once("connect", function () {
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client.quit();
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});
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client.on('end', function () {
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return done();
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});
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});
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it("reports an error", function (done) {
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client.multi();
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client.exec(function (err, res) {
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assert.equal(err.message, 'Redis connection gone from end event.');
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done();
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});
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});
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});
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describe("when connected", function () {
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var client;
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beforeEach(function (done) {
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client = redis.createClient.apply(redis.createClient, args);
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client.once("error", done);
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client.once("connect", function () {
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client.del('multifoo', 'multibar', 'multifoo_8', 'multibar_8', function (err) {
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return done(err);
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})
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});
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});
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afterEach(function () {
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client.end();
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});
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it('roles back a transaction when one command in a sequence of commands fails', function (done) {
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var name = "MULTI_1", multi1, multi2;
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// Provoke an error at queue time
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multi1 = client.multi();
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multi1.mset("multifoo", "10", "multibar", "20", nodeAssert.isString("OK"));
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multi1.set("foo2", nodeAssert.isError());
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multi1.incr("multifoo", nodeAssert.isNumber(11));
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multi1.incr("multibar", nodeAssert.isNumber(21));
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multi1.exec(function () {
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// Redis 2.6.5+ will abort transactions with errors
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// see: http://redis.io/topics/transactions
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var multibar_expected = 22;
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var multifoo_expected = 12;
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if (nodeAssert.serverVersionAtLeast(client, [2, 6, 5])) {
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multibar_expected = 1;
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multifoo_expected = 1;
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}
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// Confirm that the previous command, while containing an error, still worked.
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multi2 = client.multi();
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multi2.incr("multibar", nodeAssert.isNumber(multibar_expected));
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multi2.incr("multifoo", nodeAssert.isNumber(multifoo_expected));
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multi2.exec(function (err, replies) {
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assert.strictEqual(multibar_expected, replies[0]);
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assert.strictEqual(multifoo_expected, replies[1]);
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return done();
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});
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});
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});
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// I'm unclear as to the difference between this test in the test above,
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// perhaps @mranney can clarify?
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it('roles back a transaction when an error was provoked at queue time', function (done) {
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multi1 = client.multi();
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multi1.mset("multifoo_8", "10", "multibar_8", "20", nodeAssert.isString("OK"));
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multi1.set("foo2", nodeAssert.isError());
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multi1.set("foo3", nodeAssert.isError());
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multi1.incr("multifoo_8", nodeAssert.isNumber(11));
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multi1.incr("multibar_8", nodeAssert.isNumber(21));
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multi1.exec(function () {
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// Redis 2.6.5+ will abort transactions with errors
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// see: http://redis.io/topics/transactions
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var multibar_expected = 22;
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var multifoo_expected = 12;
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if (nodeAssert.serverVersionAtLeast(client, [2, 6, 5])) {
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multibar_expected = 1;
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multifoo_expected = 1;
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}
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// Confirm that the previous command, while containing an error, still worked.
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multi2 = client.multi();
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multi2.incr("multibar_8", nodeAssert.isNumber(multibar_expected));
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multi2.incr("multifoo_8", nodeAssert.isNumber(multifoo_expected));
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multi2.exec(function (err, replies) {
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assert.strictEqual(multibar_expected, replies[0]);
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assert.strictEqual(multifoo_expected, replies[1]);
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return done();
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});
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});
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});
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it('roles back a transaction when one command in an array of commands fails', function (done) {
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// test nested multi-bulk replies
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client.multi([
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["mget", "multifoo", "multibar", function (err, res) {
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assert.strictEqual(2, res.length);
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assert.strictEqual("0", res[0].toString());
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assert.strictEqual("0", res[1].toString());
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}],
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["set", "foo2", nodeAssert.isError()],
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["incr", "multifoo", nodeAssert.isNumber(1)],
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["incr", "multibar", nodeAssert.isNumber(1)]
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]).exec(function (err, replies) {
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if (nodeAssert.serverVersionAtLeast(client, [2, 6, 5])) {
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assert.notEqual(err, null);
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assert.equal(replies, undefined);
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} else {
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assert.strictEqual(2, replies[0].length);
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assert.strictEqual("0", replies[0][0].toString());
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assert.strictEqual("0", replies[0][1].toString());
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assert.strictEqual("1", replies[1].toString());
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assert.strictEqual("1", replies[2].toString());
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}
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return done();
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});
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});
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it('handles multiple operations being applied to a set', function (done) {
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client.sadd("some set", "mem 1");
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client.sadd("some set", "mem 2");
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client.sadd("some set", "mem 3");
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client.sadd("some set", "mem 4");
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// make sure empty mb reply works
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client.del("some missing set");
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client.smembers("some missing set", function (err, reply) {
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// make sure empty mb reply works
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assert.strictEqual(0, reply.length);
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});
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// test nested multi-bulk replies with empty mb elements.
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client.multi([
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["smembers", "some set"],
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["del", "some set"],
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["smembers", "some set"]
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])
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.scard("some set")
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.exec(function (err, replies) {
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assert.strictEqual(4, replies[0].length);
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assert.strictEqual(0, replies[2].length);
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return done();
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});
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});
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it('allows multiple operations to be performed using a chaining API', function (done) {
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client.multi()
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.mset('some', '10', 'keys', '20')
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.incr('some')
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.incr('keys')
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.mget('some', 'keys')
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.exec(function (err, replies) {
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assert.strictEqual(null, err);
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assert.equal('OK', replies[0]);
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assert.equal(11, replies[1]);
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assert.equal(21, replies[2]);
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assert.equal(11, replies[3][0].toString());
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assert.equal(21, replies[3][1].toString());
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return done();
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});
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});
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it('allows an array to be provided indicating multiple operations to perform', function (done) {
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// test nested multi-bulk replies with nulls.
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client.multi([
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["mget", ["multifoo", "some", "random value", "keys"]],
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["incr", "multifoo"]
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])
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.exec(function (err, replies) {
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assert.strictEqual(replies.length, 2);
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assert.strictEqual(replies[0].length, 4);
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return done();
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});
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});
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it('allows multiple operations to be performed on a hash', function (done) {
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client.multi()
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.hmset("multihash", "a", "foo", "b", 1)
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.hmset("multihash", {
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extra: "fancy",
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things: "here"
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})
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.hgetall("multihash")
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.exec(function (err, replies) {
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assert.strictEqual(null, err);
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assert.equal("OK", replies[0]);
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assert.equal(Object.keys(replies[2]).length, 4);
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assert.equal("foo", replies[2].a);
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assert.equal("1", replies[2].b);
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assert.equal("fancy", replies[2].extra);
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assert.equal("here", replies[2].things);
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return done();
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});
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});
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it('reports multiple exceptions when they occur', function (done) {
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if (!nodeAssert.serverVersionAtLeast(client, [2, 6, 5])) return done();
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client.multi().set("foo").exec(function (err, reply) {
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assert(Array.isArray(err), "err should be an array");
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assert.equal(2, err.length, "err should have 2 items");
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assert(err[0].message.match(/ERR/), "First error message should contain ERR");
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assert(err[1].message.match(/EXECABORT/), "First error message should contain EXECABORT");
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return done();
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});
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});
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});
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});
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}
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['javascript', 'hiredis'].forEach(function (parser) {
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allTests(parser, "/tmp/redis.sock");
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['IPv4', 'IPv6'].forEach(function (ip) {
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allTests(parser, ip);
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})
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});
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after(function (done) {
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if (rp) rp.stop(done);
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});
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});
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