Tests configuration override.
function testConfOverride() {
global $conf;
$expected_original_data = array(
'foo' => 'bar',
'baz' => NULL,
'404' => 'herp',
);
// Verify that the original configuration data exists.
$config = config('config_test.system');
$this
->assertIdentical($config
->get('foo'), $expected_original_data['foo']);
$this
->assertIdentical($config
->get('baz'), $expected_original_data['baz']);
$this
->assertIdentical($config
->get('404'), $expected_original_data['404']);
// Apply the overridden data.
$conf['config_test.system']['foo'] = 'overridden';
$conf['config_test.system']['baz'] = 'injected';
$conf['config_test.system']['404'] = 'derp';
// Verify that the in-memory configuration object still contains the
// original data.
$this
->assertIdentical($config
->get('foo'), $expected_original_data['foo']);
$this
->assertIdentical($config
->get('baz'), $expected_original_data['baz']);
$this
->assertIdentical($config
->get('404'), $expected_original_data['404']);
// Reload the configuration object.
$config = config('config_test.system');
// Verify that it contains the overridden data from $conf.
$this
->assertIdentical($config
->get('foo'), $conf['config_test.system']['foo']);
$this
->assertIdentical($config
->get('baz'), $conf['config_test.system']['baz']);
$this
->assertIdentical($config
->get('404'), $conf['config_test.system']['404']);
// Set the value for 'baz' (on the original data).
$expected_original_data['baz'] = 'original baz';
$config
->set('baz', $expected_original_data['baz']);
// Set the value for '404' (on the original data).
$expected_original_data['404'] = 'original 404';
$config
->set('404', $expected_original_data['404']);
// Verify that it still contains the overridden data from $conf.
$this
->assertIdentical($config
->get('foo'), $conf['config_test.system']['foo']);
$this
->assertIdentical($config
->get('baz'), $conf['config_test.system']['baz']);
$this
->assertIdentical($config
->get('404'), $conf['config_test.system']['404']);
// Save the configuration object (having overrides applied).
$config
->save();
// Reload it and verify that it still contains overridden data from $conf.
$config = config('config_test.system');
$this
->assertIdentical($config
->get('foo'), $conf['config_test.system']['foo']);
$this
->assertIdentical($config
->get('baz'), $conf['config_test.system']['baz']);
$this
->assertIdentical($config
->get('404'), $conf['config_test.system']['404']);
// Remove the $conf overrides.
unset($conf['config_test.system']);
// Reload it and verify that it still contains the original data.
$config = config('config_test.system');
$this
->assertIdentical($config
->get('foo'), $expected_original_data['foo']);
$this
->assertIdentical($config
->get('baz'), $expected_original_data['baz']);
$this
->assertIdentical($config
->get('404'), $expected_original_data['404']);
}