Added support for extending individual driver classes and driver unit tests
Signed-off-by: dchill42 <dchill42@gmail.com>
diff --git a/tests/codeigniter/libraries/Driver_test.php b/tests/codeigniter/libraries/Driver_test.php
new file mode 100644
index 0000000..0186cfe
--- /dev/null
+++ b/tests/codeigniter/libraries/Driver_test.php
@@ -0,0 +1,176 @@
+<?php
+
+/**
+ * Driver library base class unit test
+ */
+class Driver_test extends CI_TestCase {
+ /**
+ * Set up test framework
+ */
+ public function set_up()
+ {
+ // Set our subclass prefix
+ $this->subclass = 'Mock_Libraries_';
+ $this->ci_set_config('subclass_prefix', $this->subclass);
+
+ // Mock Loader->get_package_paths
+ $paths = 'get_package_paths';
+ $ldr = $this->getMock('CI_Loader', array($paths));
+ $ldr->expects($this->any())->method($paths)->will($this->returnValue(array(APPPATH, BASEPATH)));
+ $this->ci_instance_var('load', $ldr);
+
+ // Create mock driver library
+ $this->name = 'Driver';
+ $this->lib = new Mock_Libraries_Driver();
+ }
+
+ /**
+ * Test driver child loading
+ */
+ public function test_load_driver()
+ {
+ // Create driver file
+ $driver = 'basic';
+ $file = $this->name.'_'.$driver;
+ $class = 'CI_'.$file;
+ $prop = 'called';
+ $content = '<?php class '.$class.' extends CI_Driver { public $'.$prop.' = FALSE; '.
+ 'public function decorate($parent) { $this->'.$prop.' = TRUE; } }';
+ $this->ci_vfs_create($file, $content, $this->ci_base_root, array('libraries', $this->name, 'drivers'));
+
+ // Make driver valid
+ $this->lib->driver_list($driver);
+
+ // Load driver
+ $this->assertNotNull($this->lib->load_driver($driver));
+
+ // Did lib name get set?
+ $this->assertEquals($this->name, $this->lib->get_name());
+
+ // Was driver loaded?
+ $this->assertObjectHasAttribute($driver, $this->lib);
+ $this->assertAttributeInstanceOf($class, $driver, $this->lib);
+ $this->assertAttributeInstanceOf('CI_Driver', $driver, $this->lib);
+
+ // Was decorate called?
+ $this->assertObjectHasAttribute($prop, $this->lib->$driver);
+ $this->assertTrue($this->lib->$driver->$prop);
+
+ // Do we get an error for an invalid driver?
+ $driver = 'unlisted';
+ $this->setExpectedException('RuntimeException', 'CI Error: Invalid driver requested: '.$this->name.'_'.$driver);
+ $this->lib->load_driver($driver);
+ }
+
+ /**
+ * Test loading lowercase from app path
+ */
+ public function test_load_app_driver()
+ {
+ // Create driver file
+ $driver = 'lowpack';
+ $file = $this->name.'_'.$driver;
+ $class = 'CI_'.$file;
+ $content = '<?php class '.$class.' extends CI_Driver { }';
+ $this->ci_vfs_create(strtolower($file), $content, $this->ci_app_root,
+ array('libraries', $this->name, 'drivers'));
+
+ // Make valid list
+ $nodriver = 'absent';
+ $this->lib->driver_list(array($driver, $nodriver));
+
+ // Load driver
+ $this->assertNotNull($this->lib->load_driver($driver));
+
+ // Was driver loaded?
+ $this->assertObjectHasAttribute($driver, $this->lib);
+ $this->assertAttributeInstanceOf($class, $driver, $this->lib);
+ $this->assertAttributeInstanceOf('CI_Driver', $driver, $this->lib);
+
+ // Do we get an error for a non-existent driver?
+ $this->setExpectedException('RuntimeException', 'CI Error: Unable to load the requested driver: CI_'.
+ $this->name.'_'.$nodriver);
+ $this->lib->load_driver($nodriver);
+ }
+
+ /**
+ * Test loading driver extension
+ */
+ public function test_load_driver_ext()
+ {
+ // Create base file
+ $driver = 'extend';
+ $base = $this->name.'_'.$driver;
+ $baseclass = 'CI_'.$base;
+ $content = '<?php class '.$baseclass.' extends CI_Driver { }';
+ $this->ci_vfs_create($base, $content, $this->ci_base_root, array('libraries', $this->name, 'drivers'));
+
+ // Create driver file
+ $class = $this->subclass.$base;
+ $content = '<?php class '.$class.' extends '.$baseclass.' { }';
+ $this->ci_vfs_create($class, $content, $this->ci_app_root, array('libraries', $this->name, 'drivers'));
+
+ // Make valid list
+ $this->lib->driver_list($driver);
+
+ // Load driver
+ $this->assertNotNull($this->lib->load_driver($driver));
+
+ // Was driver loaded?
+ $this->assertObjectHasAttribute($driver, $this->lib);
+ $this->assertAttributeInstanceOf($class, $driver, $this->lib);
+ $this->assertAttributeInstanceOf($baseclass, $driver, $this->lib);
+ $this->assertAttributeInstanceOf('CI_Driver', $driver, $this->lib);
+
+ // Create driver extension without base
+ $driver = 'baseless';
+ $base = $this->name.'_'.$driver;
+ $class = $this->subclass.$base;
+ $content = '<?php class '.$class.' extends CI_Driver { }';
+ $this->ci_vfs_create($class, $content, $this->ci_app_root, array('libraries', $this->name, 'drivers'));
+ $this->lib->driver_list($driver);
+
+ // Do we get an error when base class isn't found?
+ $this->setExpectedException('RuntimeException', 'CI Error: Unable to load the requested class: CI_'.$base);
+ $this->lib->load_driver($driver);
+ }
+
+ /**
+ * Test decorating driver with parent attributes
+ */
+ public function test_decorate()
+ {
+ // Create parent with a method and property to access
+ $pclass = 'Test_Parent';
+ $prop = 'parent_prop';
+ $value = 'initial';
+ $method = 'parent_func';
+ $return = 'func return';
+ $code = 'class '.$pclass.' { public $'.$prop.' = \''.$value.'\'; '.
+ 'public function '.$method.'() { return \''.$return.'\'; } }';
+ eval($code);
+ $parent = new $pclass();
+
+ // Create child driver to decorate
+ $class = 'Test_Driver';
+ eval('class '.$class.' extends CI_Driver { }');
+ $child = new $class();
+
+ // Decorate child
+ $child->decorate($parent);
+
+ // Do we get the initial parent property value?
+ $this->assertEquals($value, $child->$prop);
+
+ // Can we change the parent property?
+ $newval = 'changed';
+ $child->$prop = $newval;
+ $this->assertEquals($newval, $parent->$prop);
+
+ // Do we get back the updated value?
+ $this->assertEquals($newval, $child->$prop);
+
+ // Can we call the parent method?
+ $this->assertEquals($return, $child->$method());
+ }
+}