... and here finally comes Predis!

test/PredisShared.php

@@ -0,0 +1,124 @@
+<?php
+require_once '../lib/Predis.php';
+
+if (I_AM_AWARE_OF_THE_DESTRUCTIVE_POWER_OF_THIS_TEST_SUITE !== true) {
+    exit('Please set the I_AM_AWARE_OF_THE_DESTRUCTIVE_POWER_OF_THIS_TEST_SUITE constant to TRUE if you want to proceed.');
+}
+
+if (!function_exists('array_union')) {
+    function array_union(Array $a, Array $b) { 
+        return array_merge($a, array_diff($b, $a));
+    }
+}
+
+class RC {
+    const SERVER_HOST      = '127.0.0.1';
+    const SERVER_PORT      = 6379;
+    const DEFAULT_DATABASE = 15;
+
+    const WIPE_OUT         = 1;
+    const EXCEPTION_WRONG_TYPE     = 'Operation against a key holding the wrong kind of value';
+    const EXCEPTION_NO_SUCH_KEY    = 'no such key';
+    const EXCEPTION_OUT_OF_RANGE   = 'index out of range';
+    const EXCEPTION_INVALID_DB_IDX = 'invalid DB index';
+
+    private static $_connection;
+
+    private static function createConnection() {
+        $connection = new Predis\Client(RC::SERVER_HOST, RC::SERVER_PORT);
+        $connection->connect();
+        $connection->selectDatabase(RC::DEFAULT_DATABASE);
+        return $connection;
+    }
+
+    public static function getConnection() {
+        if (self::$_connection === null || !self::$_connection->isConnected()) {
+            self::$_connection = self::createConnection();
+        }
+        return self::$_connection;
+    }
+
+    public static function resetConnection() {
+        if (self::$_connection !== null && self::$_connection->isConnected()) {
+            self::$_connection->disconnect();
+            self::$_connection = self::createConnection();
+        }
+    }
+
+    public static function getArrayOfNumbers() {
+        return array(0, 1, 2, 3, 4, 5, 6, 7, 8, 9);
+    }
+
+    public static function getKeyValueArray() {
+        return array(
+            'foo'      => 'bar', 
+            'hoge'     => 'piyo', 
+            'foofoo'   => 'barbar', 
+        );
+    }
+
+    public static function getNamespacedKeyValueArray() {
+        return array(
+            'metavar:foo'      => 'bar', 
+            'metavar:hoge'     => 'piyo', 
+            'metavar:foofoo'   => 'barbar', 
+        );
+    }
+
+    public static function getZSetArray() {
+        return array(
+            'a' => -10, 'b' => 0, 'c' => 10, 'd' => 20, 'e' => 20, 'f' => 30
+        );
+    }
+
+    public static function sameValuesInArrays($arrayA, $arrayB) {
+        if (count($arrayA) != count($arrayB)) {
+            return false;
+        }
+        return count(array_diff($arrayA, $arrayB)) == 0;
+    }
+
+    public static function testForServerException($testcaseInstance, $expectedMessage, $wrapFunction) {
+        $thrownException = null;
+        try {
+            $wrapFunction($testcaseInstance);
+        }
+        catch (Predis\ServerException $exception) {
+            $thrownException = $exception;
+        }
+        $testcaseInstance->assertType('Predis\ServerException', $thrownException);
+        $testcaseInstance->assertEquals($expectedMessage, $thrownException->getMessage());
+    }
+
+    public static function pushTailAndReturn(Predis\Client $client, $keyName, Array $values, $wipeOut = 0) {
+        if ($wipeOut == true) {
+            $client->delete($keyName);
+        }
+        foreach ($values as $value) {
+            $client->pushTail($keyName, $value);
+        }
+        return $values;
+    }
+
+    public static function setAddAndReturn(Predis\Client $client, $keyName, Array $values, $wipeOut = 0) {
+        if ($wipeOut == true) {
+            $client->delete($keyName);
+        }
+        foreach ($values as $value) {
+            $client->setAdd($keyName, $value);
+        }
+        return $values;
+    }
+
+    public static function zsetAddAndReturn(Predis\Client $client, $keyName, Array $values, $wipeOut = 0) {
+        // $values: array(SCORE => VALUE, ...);
+        if ($wipeOut == true) {
+            $client->delete($keyName);
+        }
+        foreach ($values as $value => $score) {
+            $client->zsetAdd($keyName, $score, $value);
+        }
+        return $values;
+    }
+}
+?>