Redis

This module uses the Predis library to interact with a Redis server.

Status

• Stability: beta

Configuration

• host (string, default '127.0.0.1') - The Redis host
• port (int, default 6379) - The Redis port
• database (int, no default) - The Redis database. Needs to be specified.
• cleanupBefore: (string, default 'never') - Whether/when to flush the database:
  • suite: at the beginning of every suite
  • test: at the beginning of every test
  • Any other value: never

Example (unit.suite.yml)

   modules:
       - Redis:
           host: '127.0.0.1'
           port: 6379
           database: 0
           cleanupBefore: 'never'

Public Properties

• driver - Contains the Predis client/driver

@author Marc Verney [email protected]

Actions

cleanup

Delete all the keys in the Redis database

@throws ModuleException

dontSeeInRedis

Asserts that a key does not exist or, optionally, that it doesn’t have the provided $value

Examples:

<?php
// With only one argument, only checks the key does not exist
$I->dontSeeInRedis('example:string');

// Checks a String does not exist or its value is not the one provided
$I->dontSeeInRedis('example:string', 'life');

// Checks a List does not exist or its value is not the one provided (order of elements is compared).
$I->dontSeeInRedis('example:list', ['riri', 'fifi', 'loulou']);

// Checks a Set does not exist or its value is not the one provided (order of members is ignored).
$I->dontSeeInRedis('example:set', ['riri', 'fifi', 'loulou']);

// Checks a ZSet does not exist or its value is not the one provided (scores are required, order of members is compared)
$I->dontSeeInRedis('example:zset', ['riri' => 1, 'fifi' => 2, 'loulou' => 3]);

// Checks a Hash does not exist or its value is not the one provided (order of members is ignored).
$I->dontSeeInRedis('example:hash', ['riri' => true, 'fifi' => 'Dewey', 'loulou' => 2]);

• param string $key The key name
• param mixed $value Optional. If specified, also checks the key has this value. Booleans will be converted to 1 and 0 (even inside arrays)

dontSeeRedisKeyContains

Asserts that a given key does not contain a given item

Examples:

<?php
// Strings: performs a substring search
$I->dontSeeRedisKeyContains('string', 'bar');

// Lists
$I->dontSeeRedisKeyContains('example:list', 'poney');

// Sets
$I->dontSeeRedisKeyContains('example:set', 'cat');

// ZSets: check whether the zset has this member
$I->dontSeeRedisKeyContains('example:zset', 'jordan');

// ZSets: check whether the zset has this member with this score
$I->dontSeeRedisKeyContains('example:zset', 'jordan', 23);

// Hashes: check whether the hash has this field
$I->dontSeeRedisKeyContains('example:hash', 'magic');

// Hashes: check whether the hash has this field with this value
$I->dontSeeRedisKeyContains('example:hash', 'magic', 32);

• param string $key The key
• param mixed $item The item

• param null $itemValue Optional and only used for zsets and hashes. If specified, the method will also check that the $item has this value/score

• return bool

grabFromRedis

Returns the value of a given key

Examples:

<?php
// Strings
$I->grabFromRedis('string');

// Lists: get all members
$I->grabFromRedis('example:list');

// Lists: get a specific member
$I->grabFromRedis('example:list', 2);

// Lists: get a range of elements
$I->grabFromRedis('example:list', 2, 4);

// Sets: get all members
$I->grabFromRedis('example:set');

// ZSets: get all members
$I->grabFromRedis('example:zset');

// ZSets: get a range of members
$I->grabFromRedis('example:zset', 3, 12);

// Hashes: get all fields of a key
$I->grabFromRedis('example:hash');

// Hashes: get a specific field of a key
$I->grabFromRedis('example:hash', 'foo');

• param string $key The key name

@throws ModuleException if the key does not exist

haveInRedis

Creates or modifies keys

If $key already exists:

• Strings: its value will be overwritten with $value
• Other types: $value items will be appended to its value

Examples:

<?php
// Strings: $value must be a scalar
$I->haveInRedis('string', 'Obladi Oblada');

// Lists: $value can be a scalar or an array
$I->haveInRedis('list', ['riri', 'fifi', 'loulou']);

// Sets: $value can be a scalar or an array
$I->haveInRedis('set', ['riri', 'fifi', 'loulou']);

// ZSets: $value must be an associative array with scores
$I->haveInRedis('zset', ['riri' => 1, 'fifi' => 2, 'loulou' => 3]);

// Hashes: $value must be an associative array
$I->haveInRedis('hash', ['obladi' => 'oblada']);

• param string $type The type of the key
• param string $key The key name
• param mixed $value The value

@throws ModuleException

seeInRedis

Asserts that a key exists, and optionally that it has the provided $value

Examples:

<?php
// With only one argument, only checks the key exists
$I->seeInRedis('example:string');

// Checks a String exists and has the value "life"
$I->seeInRedis('example:string', 'life');

// Checks the value of a List. Order of elements is compared.
$I->seeInRedis('example:list', ['riri', 'fifi', 'loulou']);

// Checks the value of a Set. Order of members is ignored.
$I->seeInRedis('example:set', ['riri', 'fifi', 'loulou']);

// Checks the value of a ZSet. Scores are required. Order of members is compared.
$I->seeInRedis('example:zset', ['riri' => 1, 'fifi' => 2, 'loulou' => 3]);

// Checks the value of a Hash. Order of members is ignored.
$I->seeInRedis('example:hash', ['riri' => true, 'fifi' => 'Dewey', 'loulou' => 2]);

• param string $key The key name
• param mixed $value Optional. If specified, also checks the key has this value. Booleans will be converted to 1 and 0 (even inside arrays)

seeRedisKeyContains

Asserts that a given key contains a given item

Examples:

<?php
// Strings: performs a substring search
$I->seeRedisKeyContains('example:string', 'bar');

// Lists
$I->seeRedisKeyContains('example:list', 'poney');

// Sets
$I->seeRedisKeyContains('example:set', 'cat');

// ZSets: check whether the zset has this member
$I->seeRedisKeyContains('example:zset', 'jordan');

// ZSets: check whether the zset has this member with this score
$I->seeRedisKeyContains('example:zset', 'jordan', 23);

// Hashes: check whether the hash has this field
$I->seeRedisKeyContains('example:hash', 'magic');

// Hashes: check whether the hash has this field with this value
$I->seeRedisKeyContains('example:hash', 'magic', 32);

• param string $key The key
• param mixed $item The item

• param null $itemValue Optional and only used for zsets and hashes. If specified, the method will also check that the $item has this value/score

• return bool

sendCommandToRedis

Sends a command directly to the Redis driver. See documentation at https://github.com/nrk/predis Every argument that follows the $command name will be passed to it.

Examples:

<?php
$I->sendCommandToRedis('incr', 'example:string');
$I->sendCommandToRedis('strLen', 'example:string');
$I->sendCommandToRedis('lPop', 'example:list');
$I->sendCommandToRedis('zRangeByScore', 'example:set', '-inf', '+inf', ['withscores' => true, 'limit' => [1, 2]]);
$I->sendCommandToRedis('flushdb');

• param string $command The command name