Update unit tests.

Author: terrylinooo

src/SimpleCache/Cache.php

@@ -124,4 +124,19 @@ public function deleteMultiple($keys)
     {
         return $this->driver->deleteMultiple($keys);
     }
+
+    /**
+     * Create or rebuid the data schema.
+     * This method is avaialbe for Mysql and Sqlite drivers.
+     *
+     * @return bool
+     */
+    public function rebuild(): bool
+    {
+        if (method_exists($this->driver, 'rebuild')) {
+            return $this->driver->rebuild();
+        }
+
+        return false;
+    }
 }

tests/SimpleCache/CacheTest.php

@@ -131,4 +131,28 @@ public function testIsExpired()
         $result = $method->invokeArgs($cache, [$dateInterval, $time]);
         $this->assertFalse($result);
     }
+
+    public function testRebuildShouldReturnTrue()
+    {
+        $driver = new Cache('mysql', [
+            'dbname' => 'shieldon_unittest',
+            'user' => 'shieldon',
+            'pass' => 'taiwan',
+        ]);
+
+        $this->assertTrue($driver->rebuild());
+
+        $driver = new Cache('sqlite', [
+            'storage' => create_tmp_directory()
+        ]);
+
+        $this->assertTrue($driver->rebuild());
+    }
+
+    public function testRebuildShouldReturnFalse()
+    {
+        $driver = new Cache('apcu');
+
+        $this->assertFalse($driver->rebuild());
+    }
 }