public function testPreparesFromConfig()
{
$c = Collection::fromConfig(array('a' => '123', 'base_url' => 'http://www.test.com/'), array('a' => 'xyz', 'b' => 'lol'), array('a'));
$this->assertInstanceOf('GuzzleHttp5Legacy\\Collection', $c);
$this->assertEquals(array('a' => '123', 'b' => 'lol', 'base_url' => 'http://www.test.com/'), $c->toArray());
try {
Collection::fromConfig(array(), array(), array('a'));
$this->fail('Exception not throw when missing config');
} catch (\InvalidArgumentException $e) {
}
}
