--- /dev/null
+<?php
+
+namespace Drupal\Tests\devel\Functional;
+
+use Drupal\Component\Render\FormattableMarkup;
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Tests devel error handler.
+ *
+ * @group devel
+ */
+class DevelErrorHandlerTest extends BrowserTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public static $modules = ['devel'];
+
+ /**
+ * Tests devel error handler.
+ */
+ public function testErrorHandler() {
+ $messages_selector = 'div.messages--warning';
+
+ $expected_notice = new FormattableMarkup('%type: @message in %function (line ', [
+ '%type' => 'Notice',
+ '@message' => 'Undefined variable: undefined',
+ '%function' => 'Drupal\devel\Form\SettingsForm->demonstrateErrorHandlers()',
+ ]);
+
+ $expected_warning = new FormattableMarkup('%type: @message in %function (line ', [
+ '%type' => 'Warning',
+ '@message' => 'Division by zero',
+ '%function' => 'Drupal\devel\Form\SettingsForm->demonstrateErrorHandlers()',
+ ]);
+
+ $config = $this->config('system.logging');
+ $config->set('error_level', ERROR_REPORTING_DISPLAY_VERBOSE)->save();
+
+ $admin_user = $this->drupalCreateUser(['administer site configuration', 'access devel information']);
+ $this->drupalLogin($admin_user);
+
+ // Ensures that the error handler config is present on the config page and
+ // by default the standard error handler is selected.
+ $error_handlers = \Drupal::config('devel.settings')->get('error_handlers');
+ $this->assertEquals($error_handlers, [DEVEL_ERROR_HANDLER_STANDARD => DEVEL_ERROR_HANDLER_STANDARD]);
+ $this->drupalGet('admin/config/development/devel');
+ $this->assertOptionSelected('edit-error-handlers', DEVEL_ERROR_HANDLER_STANDARD);
+
+ // Ensures that selecting the DEVEL_ERROR_HANDLER_NONE option no error
+ // (raw or message) is shown on the site in case of php errors.
+ $edit = [
+ 'error_handlers[]' => DEVEL_ERROR_HANDLER_NONE,
+ ];
+ $this->drupalPostForm('admin/config/development/devel', $edit, t('Save configuration'));
+ $this->assertSession()->pageTextContains('The configuration options have been saved.');
+
+ $error_handlers = \Drupal::config('devel.settings')->get('error_handlers');
+ $this->assertEquals($error_handlers, [DEVEL_ERROR_HANDLER_NONE => DEVEL_ERROR_HANDLER_NONE]);
+ $this->assertOptionSelected('edit-error-handlers', DEVEL_ERROR_HANDLER_NONE);
+
+ $this->clickLink('notice+warning');
+ $this->assertSession()->statusCodeEquals(200);
+ $this->assertSession()->responseNotContains($expected_notice);
+ $this->assertSession()->responseNotContains($expected_warning);
+ $this->assertSession()->elementNotExists('css', $messages_selector);
+
+ // Ensures that selecting the DEVEL_ERROR_HANDLER_BACKTRACE_KINT option a
+ // backtrace above the rendered page is shown on the site in case of php
+ // errors.
+ $edit = [
+ 'error_handlers[]' => DEVEL_ERROR_HANDLER_BACKTRACE_KINT,
+ ];
+ $this->drupalPostForm('admin/config/development/devel', $edit, t('Save configuration'));
+ $this->assertSession()->pageTextContains('The configuration options have been saved.');
+
+ $error_handlers = \Drupal::config('devel.settings')->get('error_handlers');
+ $this->assertEquals($error_handlers, [DEVEL_ERROR_HANDLER_BACKTRACE_KINT => DEVEL_ERROR_HANDLER_BACKTRACE_KINT]);
+ $this->assertOptionSelected('edit-error-handlers', DEVEL_ERROR_HANDLER_BACKTRACE_KINT);
+
+ $this->clickLink('notice+warning');
+ $this->assertSession()->statusCodeEquals(200);
+ $this->assertSession()->elementNotExists('css', $messages_selector);
+
+ // Ensures that selecting the DEVEL_ERROR_HANDLER_BACKTRACE_DPM option a
+ // backtrace in the message area is shown on the site in case of php errors.
+ $edit = [
+ 'error_handlers[]' => DEVEL_ERROR_HANDLER_BACKTRACE_DPM,
+ ];
+ $this->drupalPostForm('admin/config/development/devel', $edit, t('Save configuration'));
+ $this->assertSession()->pageTextContains('The configuration options have been saved.');
+
+ $error_handlers = \Drupal::config('devel.settings')->get('error_handlers');
+ $this->assertEquals($error_handlers, [DEVEL_ERROR_HANDLER_BACKTRACE_DPM => DEVEL_ERROR_HANDLER_BACKTRACE_DPM]);
+ $this->assertOptionSelected('edit-error-handlers', DEVEL_ERROR_HANDLER_BACKTRACE_DPM);
+
+ $this->clickLink('notice+warning');
+ $this->assertSession()->statusCodeEquals(200);
+ $this->assertSession()->responseContains($expected_notice);
+ $this->assertSession()->responseContains($expected_warning);
+ $this->assertSession()->elementContains('css', $messages_selector, $expected_notice);
+ $this->assertSession()->elementContains('css', $messages_selector, $expected_warning);
+
+ // Ensures that when multiple handlers are selected, the output produced by
+ // every handler is shown on the site in case of php errors.
+ $edit = [
+ 'error_handlers[]' => [
+ DEVEL_ERROR_HANDLER_BACKTRACE_KINT => DEVEL_ERROR_HANDLER_BACKTRACE_KINT,
+ DEVEL_ERROR_HANDLER_BACKTRACE_DPM => DEVEL_ERROR_HANDLER_BACKTRACE_DPM,
+ ],
+ ];
+ $this->drupalPostForm('admin/config/development/devel', $edit, t('Save configuration'));
+ $this->assertSession()->pageTextContains('The configuration options have been saved.');
+
+ $error_handlers = \Drupal::config('devel.settings')->get('error_handlers');
+ $this->assertEquals($error_handlers, [
+ DEVEL_ERROR_HANDLER_BACKTRACE_KINT => DEVEL_ERROR_HANDLER_BACKTRACE_KINT,
+ DEVEL_ERROR_HANDLER_BACKTRACE_DPM => DEVEL_ERROR_HANDLER_BACKTRACE_DPM,
+ ]);
+ $this->assertOptionSelected('edit-error-handlers', DEVEL_ERROR_HANDLER_BACKTRACE_KINT);
+ $this->assertOptionSelected('edit-error-handlers', DEVEL_ERROR_HANDLER_BACKTRACE_DPM);
+
+ $this->clickLink('notice+warning');
+ $this->assertSession()->statusCodeEquals(200);
+ $this->assertSession()->responseContains($expected_notice);
+ $this->assertSession()->responseContains($expected_warning);
+ $this->assertSession()->elementContains('css', $messages_selector, $expected_notice);
+ $this->assertSession()->elementContains('css', $messages_selector, $expected_warning);
+
+ // Ensures that setting the error reporting to all the output produced by
+ // handlers is shown on the site in case of php errors.
+ $config->set('error_level', ERROR_REPORTING_DISPLAY_ALL)->save();
+ $this->clickLink('notice+warning');
+ $this->assertSession()->statusCodeEquals(200);
+ $this->assertSession()->responseContains($expected_notice);
+ $this->assertSession()->responseContains($expected_warning);
+ $this->assertSession()->elementContains('css', $messages_selector, $expected_notice);
+ $this->assertSession()->elementContains('css', $messages_selector, $expected_warning);
+
+ // Ensures that setting the error reporting to some the output produced by
+ // handlers is shown on the site in case of php errors.
+ $config->set('error_level', ERROR_REPORTING_DISPLAY_SOME)->save();
+ $this->clickLink('notice+warning');
+ $this->assertSession()->statusCodeEquals(200);
+ $this->assertSession()->responseContains($expected_notice);
+ $this->assertSession()->responseContains($expected_warning);
+ $this->assertSession()->elementContains('css', $messages_selector, $expected_notice);
+ $this->assertSession()->elementContains('css', $messages_selector, $expected_warning);
+
+ // Ensures that setting the error reporting to none the output produced by
+ // handlers is not shown on the site in case of php errors.
+ $config->set('error_level', ERROR_REPORTING_HIDE)->save();
+ $this->clickLink('notice+warning');
+ $this->assertSession()->statusCodeEquals(200);
+ $this->assertSession()->responseNotContains($expected_notice);
+ $this->assertSession()->responseNotContains($expected_warning);
+ $this->assertSession()->elementNotExists('css', $messages_selector);
+ }
+
+}