function BlockCacheTest::testCachePerRole

Test "user.roles" cache context.

File

core/modules/block/tests/src/Functional/BlockCacheTest.php, line 80

Class

BlockCacheTest

Tests block caching.

Namespace

Code

public function testCachePerRole() {
    \Drupal::state()->set('block_test.cache_contexts', [
        'user.roles',
    ]);
    // Enable our test block. Set some content for it to display.
    $current_content = $this->randomMachineName();
    \Drupal::state()->set('block_test.content', $current_content);
    $this->drupalLogin($this->normalUser);
    $this->drupalGet('');
    $this->assertText($current_content, 'Block content displays.');
    // Change the content, but the cached copy should still be served.
    $old_content = $current_content;
    $current_content = $this->randomMachineName();
    \Drupal::state()->set('block_test.content', $current_content);
    $this->drupalGet('');
    $this->assertText($old_content, 'Block is served from the cache.');
    // Clear the cache and verify that the stale data is no longer there.
    Cache::invalidateTags([
        'block_view',
    ]);
    $this->drupalGet('');
    $this->assertNoText($old_content, 'Block cache clear removes stale cache data.');
    $this->assertText($current_content, 'Fresh block content is displayed after clearing the cache.');
    // Test whether the cached data is served for the correct users.
    $old_content = $current_content;
    $current_content = $this->randomMachineName();
    \Drupal::state()->set('block_test.content', $current_content);
    $this->drupalLogout();
    $this->drupalGet('');
    $this->assertNoText($old_content, 'Anonymous user does not see content cached per-role for normal user.');
    $this->drupalLogin($this->normalUserAlt);
    $this->drupalGet('');
    $this->assertText($old_content, 'User with the same roles sees per-role cached content.');
    $this->drupalLogin($this->adminUser);
    $this->drupalGet('');
    $this->assertNoText($old_content, 'Admin user does not see content cached per-role for normal user.');
    $this->drupalLogin($this->normalUser);
    $this->drupalGet('');
    $this->assertText($old_content, 'Block is served from the per-role cache.');
}