public function test_array_delete(){

$ar = array('key1' => 'Foo', 'key2' => 'bar');

$this->assertEquals('Foo', array_delete($ar, 'key1'));

$this->assertEquals(array('key2' => 'bar'), $ar);

$this->assertNull(array_delete($ar, 'not_existing'));

$this->assertEquals(array('key2' => 'bar'), $ar);

}

public function test_array_get(){

$ref = array('key1' => 'Foo', 'key2' => 'bar');

$ar1 = $ref;

$this->assertEquals('Foo', array_get($ar1, 'key1'));

$this->assertEquals($ref, $ar1);

$this->assertFalse(array_get($ar1, 'not_existing'));

$this->assertEquals($ref, $ar1);

}

public function test_array_flatten(){

$this->assertEquals(array(), array_flatten(array()));

$this->assertEquals(array(1), array_flatten(array(1)));

$this->assertEquals(array(1), array_flatten(array(array(1))));

$this->assertEquals(array(1, 2), array_flatten(array(array(1, 2))));

$this->assertEquals(array(1, 2), array_flatten(array(array(1), 2)));

$this->assertEquals(array(1, 2), array_flatten(array(1, array(2))));

$this->assertEquals(array(1, 2, 3), array_flatten(array(1, array(2), 3)));

$this->assertEquals(array(1, 2, 3, 4), array_flatten(array(1, array(2, 3), 4)));

$this->assertEquals(array(1, 2, 3, 4, 5, 6), array_flatten(array(1, array(2, 3), 4, array(5, 6))));

}

public function test_array_pick(){

$this->assertEquals(array(), array_pick(array(), array('foo', 'bar', 'baz')));

$this->assertEquals(array(), array_pick(array('bzz' => 'bar'), array('foo', 'bar', 'baz')));

$this->assertEquals(array('foo' => 'bar'), array_pick(array('foo' => 'bar'), array('foo', 'bar', 'baz')));

$this->assertEquals(array('foo' => 'bar'), array_pick(array('foo' => 'bar'), 'foo', 'bar'));

$this->assertEquals(array('foo' => 'bar'), array_pick(array('foo' => 'bar'), 'foo'));

}

public function test_array_reject(){

$this->assertEquals(array(), array_reject(array(), array('foo', 'bar', 'baz')));

$this->assertEquals(array('bzz' => 'bar'), array_reject(array('bzz' => 'bar'), array('foo', 'bar', 'baz')));

$this->assertEquals(array(), array_reject(array('foo' => 'bar'), array('foo', 'bar', 'baz')));

$this->assertEquals(array(), array_reject(array('foo' => 'bar'), 'foo', 'bar'));

$this->assertEquals(array('foo' => 'bar'), array_reject(array('foo' => 'bar'), 'bar'));

}