function UncaughtExceptionTest::testLoggerException

Tests fallback to PHP error log when an exception is thrown while logging.

File

core/tests/Drupal/FunctionalTests/Bootstrap/UncaughtExceptionTest.php, line 236

Class

UncaughtExceptionTest

Tests kernel panic when things are really messed up.

Namespace

Code

public function testLoggerException() : void {
    // Ensure the test error log is empty before these tests.
    $this->assertNoErrorsLogged();
    $this->expectedExceptionMessage = 'Deforestation';
    \Drupal::state()->set('error_service_test.break_logger', TRUE);
    $this->drupalGet('');
    $this->assertSession()
        ->statusCodeEquals(500);
    $this->assertSession()
        ->pageTextContains('The website encountered an unexpected error. Try again later.');
    $this->assertSession()
        ->pageTextContains($this->expectedExceptionMessage);
    // Find fatal error logged to the error.log
    $errors = file(\Drupal::root() . '/' . $this->siteDirectory . '/error.log');
    $this->assertCount(10, $errors, 'The error + the error that the logging service is broken has been written to the error log.');
    $this->assertStringContainsString('Failed to log error', $errors[0], 'The error handling logs when an error could not be logged to the logger.');
    $expected_path = \Drupal::root() . '/core/modules/system/tests/modules/error_service_test/src/MonkeysInTheControlRoom.php';
    $expected_line = 69;
    $expected_entry = "Failed to log error: Exception: Deforestation in Drupal\\error_service_test\\MonkeysInTheControlRoom->handle() (line {$expected_line} of {$expected_path})";
    $this->assertStringContainsString($expected_entry, $errors[0], 'Original error logged to the PHP error log when an exception is thrown by a logger');
    // The exception is expected. Do not interpret it as a test failure. Not
    // using File API; a potential error must trigger a PHP warning.
    unlink(\Drupal::root() . '/' . $this->siteDirectory . '/error.log');
}