function BigPipeRegressionTest::testMultipleClosingBodies_2678662

Ensure BigPipe works despite inline JS containing the string "</body>".

See also

https://www.drupal.org/node/2678662

File

core/modules/big_pipe/tests/src/FunctionalJavascript/BigPipeRegressionTest.php, line 46

Class

BigPipeRegressionTest

BigPipe regression tests.

Namespace

Code

public function testMultipleClosingBodies_2678662() {
    $this->assertTrue($this->container
        ->get('module_installer')
        ->install([
        'render_placeholder_message_test',
    ], TRUE), 'Installed modules.');
    $this->drupalLogin($this->drupalCreateUser());
    $this->drupalGet(Url::fromRoute('big_pipe_regression_test.2678662'));
    // Confirm that AJAX behaviors were instantiated, if not, this points to a
    // JavaScript syntax error.
    $javascript = <<<JS
    (function(){
      return Object.keys(Drupal.ajax.instances).length > 0;
    }())
JS;
    $this->assertJsCondition($javascript);
    // Besides verifying there is no JavaScript syntax error, also verify the
    // HTML structure.
    // The BigPipe stop signal is present just before the closing </body> and
    // </html> tags.
    $this->assertSession()
        ->responseContains(BigPipe::STOP_SIGNAL . "\n\n\n</body></html>");
    $js_code_until_closing_body_tag = substr(BigPipeRegressionTestController::MARKER_2678662, 0, strpos(BigPipeRegressionTestController::MARKER_2678662, '</body>'));
    // The BigPipe start signal does NOT start at the closing </body> tag string
    // in an inline script.
    $this->assertSession()
        ->responseNotContains($js_code_until_closing_body_tag . "\n" . BigPipe::START_SIGNAL);
}