public function CacheCollectorTest::testSetAndGetNull in Drupal 8

Makes sure that NULL is a valid value and is collected.

File

core/tests/Drupal/Tests/Core/Cache/CacheCollectorTest.php, line 90

Class

CacheCollectorTest

@coversDefaultClass \Drupal\Core\Cache\CacheCollector @group Cache

Namespace

Drupal\Tests\Core\Cache

Code

public function testSetAndGetNull() {
  $key = $this
    ->randomMachineName();
  $value = NULL;
  $this->cacheBackend
    ->expects($this
    ->once())
    ->method('invalidate')
    ->with($this->cid);
  $this->collector
    ->set($key, $value);
  $this
    ->assertTrue($this->collector
    ->has($key));
  $this
    ->assertEquals($value, $this->collector
    ->get($key));

  // Ensure that getting a value that isn't set does not mark it as
  // existent.
  $non_existing_key = $this
    ->randomMachineName(7);
  $this->collector
    ->get($non_existing_key);
  $this
    ->assertFalse($this->collector
    ->has($non_existing_key));
}