'use strict';

var assert = require('assert');
var config = require('../lib/config');
var helper = require('../helper');
var redis = config.redis;

describe("The 'hset' method", function () {

    helper.allTests(function (ip, args) {

        describe('using ' + ip, function () {
            var client;
            var hash = 'test hash';

            beforeEach(function (done) {
                client = redis.createClient.apply(null, args);
                client.once('ready', function () {
                    client.flushdb(done);
                });
            });

            it('allows a value to be set in a hash', function (done) {
                var field = Buffer.from('0123456789');
                var value = Buffer.from('abcdefghij');

                client.hset(hash, field, value, helper.isNumber(1));
                client.HGET(hash, field, helper.isString(value.toString(), done));
            });

            it('handles an empty value', function (done) {
                var field = Buffer.from('0123456789');
                var value = Buffer.alloc(0);

                client.HSET(hash, field, value, helper.isNumber(1));
                client.HGET([hash, field], helper.isString('', done));
            });

            it('handles empty key and value', function (done) {
                var field = Buffer.alloc(0);
                var value = Buffer.alloc(0);
                client.HSET([hash, field, value], function (err, res) {
                    assert.strictEqual(res, 1);
                    client.HSET(hash, field, value, helper.isNumber(0, done));
                });
            });

            it('errors if someone passed a array either as field or as value', function (done) {
                var hash = 'test hash';
                var field = 'array';
                var value = ['array contents'];
                try {
                    client.HMSET(hash, field, value);
                } catch (error) {
                    assert(/node_redis: The HMSET command contains a invalid argument type./.test(error.message));
                    done();
                }
            });

            it('does not error when a buffer and date are set as values on the same hash', function (done) {
                var hash = 'test hash';
                var field1 = 'buffer';
                var value1 = Buffer.from('abcdefghij');
                var field2 = 'date';
                var value2 = new Date();

                client.HMSET(hash, field1, value1, field2, value2, helper.isString('OK', done));
            });

            it('does not error when a buffer and date are set as fields on the same hash', function (done) {
                var hash = 'test hash';
                var value1 = 'buffer';
                var field1 = Buffer.from('abcdefghij');
                var value2 = 'date';
                var field2 = new Date();

                client.HMSET(hash, field1, value1, field2, value2, helper.isString('OK', done));
            });

            afterEach(function () {
                client.end(true);
            });
        });
    });
});
