public function testFilter()
{
$array = CArray::fromElements(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
$array = CArray::filter($array, function ($element) {
return CMathi::isEven($element);
});
$this->assertTrue(CArray::equals($array, CArray::fromElements(2, 4, 6, 8, 10)));
}
public function testFilter()
{
$map = m(["one" => 1, "two" => 2, "three" => 3, "four" => 4, "five" => 5, "six" => 6, "seven" => 7, "eight" => 8, "nine" => 9, "ten" => 10]);
$map = $map->filter(function ($value) {
return CMathi::isEven($value);
});
$this->assertTrue($map->equals(m(["two" => 2, "four" => 4, "six" => 6, "eight" => 8, "ten" => 10])));
}
public function testFilter()
{
$array = a(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
$array = $array->filter(function ($element) {
return CMathi::isEven($element);
});
$this->assertTrue($array->equals(a(2, 4, 6, 8, 10)));
}
public function testIsEven()
{
$this->assertTrue(CMathi::isEven(2));
$this->assertTrue(CMathi::isEven(4));
$this->assertTrue(CMathi::isEven(-6));
$this->assertTrue(CMathi::isEven(0));
$this->assertFalse(CMathi::isEven(1));
$this->assertFalse(CMathi::isEven(3));
$this->assertFalse(CMathi::isEven(-5));
$this->assertTrue(CMathi::isEven(2.01));
$this->assertTrue(CMathi::isEven(4.01));
$this->assertFalse(CMathi::isEven(1.01));
$this->assertFalse(CMathi::isEven(3.01));
}
