function BlockCacheTest::testNoCache

Tests non-cacheable block.

File

core/modules/block/tests/src/Functional/BlockCacheTest.php, line 163

Class

BlockCacheTest

Tests block caching.

Namespace

Code

public function testNoCache() : void {
    \Drupal::state()->set('block_test.cache_max_age', 0);
    $current_content = $this->randomMachineName();
    \Drupal::state()->set('block_test.content', $current_content);
    // If max_age = 0 has no effect, the next request would be cached.
    $this->drupalGet('');
    $this->assertSession()
        ->pageTextContains($current_content);
    // A cached copy should not be served.
    $current_content = $this->randomMachineName();
    \Drupal::state()->set('block_test.content', $current_content);
    $this->drupalGet('');
    // Maximum age of zero prevents blocks from being cached.
    $this->assertSession()
        ->pageTextContains($current_content);
}