public function testShouldRemoveFirst()
{
$value = 'value';
$this->list->add($value);
$this->list->add($value);
$this->assertCount(2, $this->list);
$this->assertEquals(2, $this->list->count());
$this->assertTrue($this->list->contains($value));
$this->list->removeFirst($value);
$this->assertCount(1, $this->list);
$this->assertEquals(1, $this->list->count());
$this->assertTrue($this->list->contains($value));
$this->assertEquals($value, $this->list->first());
}
