function ArrayHelperTest::testFilterKeys in Helper 7

File

tests/ArrayHelperTest.test, line 67

Class

ArrayHelperTest

Code

function testFilterKeys() {
  $input = array_fill_keys(range(0, 10), 'test');
  $expected1 = array_fill_keys(array(
    0,
    3,
    6,
    9,
  ), 'test');
  $expected2 = array_fill_keys(array(
    1,
    2,
    4,
    5,
    7,
    8,
    10,
  ), 'test');
  $result = ArrayHelper::filterKeys($input, function ($value) {
    return $value % 3 === 0;
  }, $input);
  $this
    ->assertIdentical($result, $expected1);
  $result = ArrayHelper::filterKeys($input, function ($value) {
    return $value % 3;
  }, $input);
  $this
    ->assertIdentical($result, $expected2);
}