243 lines
8.5 KiB
PHP
243 lines
8.5 KiB
PHP
<?php
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namespace Drupal\Tests;
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use Drupal\Component\Utility\Html;
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use Drupal\Core\Utility\Error;
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use Psr\Http\Message\RequestInterface;
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use Psr\Http\Message\ResponseInterface;
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/**
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* Provides the debug functions for browser tests.
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*/
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trait BrowserHtmlDebugTrait {
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/**
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* Class name for HTML output logging.
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*
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* @var string
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*/
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protected $htmlOutputClassName;
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/**
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* Directory name for HTML output logging.
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*
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* @var string
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*/
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protected $htmlOutputDirectory;
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/**
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* Counter storage for HTML output logging.
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*
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* @var string
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*/
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protected $htmlOutputCounterStorage;
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/**
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* Counter for HTML output logging.
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*
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* @var int
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*/
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protected $htmlOutputCounter = 1;
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/**
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* HTML output enabled.
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*
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* @var bool
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*/
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protected $htmlOutputEnabled = FALSE;
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/**
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* The file name to write the list of URLs to.
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*
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* This file is read by the PHPUnit result printer.
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*
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* @var string
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*
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* @see \Drupal\Tests\Listeners\HtmlOutputPrinter
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*/
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protected $htmlOutputFile;
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/**
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* HTML output test ID.
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*
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* @var int
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*/
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protected $htmlOutputTestId;
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/**
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* The Base URI to use for links to the output files.
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*
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* @var string
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*/
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protected $htmlOutputBaseUrl;
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/**
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* Formats HTTP headers as string for HTML output logging.
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*
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* @param array[] $headers
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* Headers that should be formatted.
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*
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* @return string
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* The formatted HTML string.
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*/
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protected function formatHtmlOutputHeaders(array $headers) {
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$flattened_headers = array_map(function ($header) {
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if (is_array($header)) {
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return implode(';', array_map('trim', $header));
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}
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else {
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return $header;
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}
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}, $headers);
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return '<hr />Headers: <pre>' . Html::escape(var_export($flattened_headers, TRUE)) . '</pre>';
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}
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/**
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* Returns headers in HTML output format.
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*
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* @return string
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* HTML output headers.
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*/
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protected function getHtmlOutputHeaders() {
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return $this->formatHtmlOutputHeaders($this->getSession()->getResponseHeaders());
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}
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/**
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* Logs a HTML output message in a text file.
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*
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* The link to the HTML output message will be printed by the results printer.
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*
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* @param string|null $message
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* (optional) The HTML output message to be stored. If not supplied the
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* current page content is used.
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*
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* @see \Drupal\Tests\Listeners\VerbosePrinter::printResult()
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*/
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protected function htmlOutput($message = NULL) {
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if (!$this->htmlOutputEnabled) {
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return;
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}
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$message = $message ?: $this->getSession()->getPage()->getContent();
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$message = '<hr />ID #' . $this->htmlOutputCounter . ' (<a href="' . $this->htmlOutputClassName . '-' . ($this->htmlOutputCounter - 1) . '-' . $this->htmlOutputTestId . '.html">Previous</a> | <a href="' . $this->htmlOutputClassName . '-' . ($this->htmlOutputCounter + 1) . '-' . $this->htmlOutputTestId . '.html">Next</a>)<hr />' . $message;
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$html_output_filename = $this->htmlOutputClassName . '-' . $this->htmlOutputCounter . '-' . $this->htmlOutputTestId . '.html';
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file_put_contents($this->htmlOutputDirectory . '/' . $html_output_filename, $message);
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file_put_contents($this->htmlOutputCounterStorage, $this->htmlOutputCounter++);
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// Do not use the file_url_generator service as the module_handler service
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// might not be available.
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$uri = $this->htmlOutputBaseUrl . '/sites/simpletest/browser_output/' . $html_output_filename;
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file_put_contents($this->htmlOutputFile, $uri . "\n", FILE_APPEND);
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}
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/**
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* Creates the directory to store browser output.
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*
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* Creates the directory to store browser output in if a file to write
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* URLs to has been created by \Drupal\Tests\Listeners\HtmlOutputPrinter.
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*/
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protected function initBrowserOutputFile() {
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$browser_output_file = getenv('BROWSERTEST_OUTPUT_FILE');
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$this->htmlOutputEnabled = is_file($browser_output_file);
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$this->htmlOutputBaseUrl = getenv('BROWSERTEST_OUTPUT_BASE_URL') ?: $GLOBALS['base_url'];
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if ($this->htmlOutputEnabled) {
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$this->htmlOutputFile = $browser_output_file;
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$this->htmlOutputClassName = str_replace("\\", "_", static::class);
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$this->htmlOutputDirectory = DRUPAL_ROOT . '/sites/simpletest/browser_output';
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// Do not use the file_system service so this method can be called before
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// it is available. Checks !is_dir() twice around mkdir() because a
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// concurrent test might have made the directory and caused mkdir() to
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// fail. In this case we can still use the directory even though we failed
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// to make it.
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if (!is_dir($this->htmlOutputDirectory) && !@mkdir($this->htmlOutputDirectory, 0775, TRUE) && !is_dir($this->htmlOutputDirectory)) {
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throw new \RuntimeException(sprintf('Unable to create directory: %s', $this->htmlOutputDirectory));
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}
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if (!file_exists($this->htmlOutputDirectory . '/.htaccess')) {
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file_put_contents($this->htmlOutputDirectory . '/.htaccess', "<IfModule mod_expires.c>\nExpiresActive Off\n</IfModule>\n");
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}
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$this->htmlOutputCounterStorage = $this->htmlOutputDirectory . '/' . $this->htmlOutputClassName . '.counter';
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$this->htmlOutputTestId = str_replace('sites/simpletest/', '', $this->siteDirectory);
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if (is_file($this->htmlOutputCounterStorage)) {
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$this->htmlOutputCounter = max(1, (int) file_get_contents($this->htmlOutputCounterStorage)) + 1;
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}
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}
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}
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/**
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* Provides a Guzzle middleware handler to log every response received.
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*
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* @return callable
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* The callable handler that will do the logging.
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*/
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protected function getResponseLogHandler() {
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return function (callable $handler) {
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return function (RequestInterface $request, array $options) use ($handler) {
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return $handler($request, $options)
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->then(function (ResponseInterface $response) use ($request) {
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if ($this->htmlOutputEnabled) {
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$caller = $this->getTestMethodCaller();
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$html_output = 'Called from ' . $caller['function'] . ' line ' . $caller['line'];
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$html_output .= '<hr />' . $request->getMethod() . ' request to: ' . $request->getUri();
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/** @var \Psr\Http\Message\StreamInterface $stream */
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$stream = $response->getBody();
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// Get the response body as a string. The response stream is set
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// to the sink, which defaults to a readable temp stream but can
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// be overridden by setting $options['sink'].
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$body = $stream->isReadable()
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? (string) $stream
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: 'Response is not readable.';
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// On redirect responses (status code starting with '3') we need
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// to remove the meta tag that would do a browser refresh. We
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// don't want to redirect developers away when they look at the
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// debug output file in their browser.
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$status_code = (string) $response->getStatusCode();
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if ($status_code[0] === '3') {
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$body = preg_replace('#<meta http-equiv="refresh" content=.+/>#', '', $body, 1);
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}
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$html_output .= '<hr />' . $body;
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$html_output .= $this->formatHtmlOutputHeaders($response->getHeaders());
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$this->htmlOutput($html_output);
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}
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return $response;
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});
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};
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};
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}
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/**
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* Retrieves the current calling line in the class under test.
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*
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* @return array
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* An associative array with keys 'file', 'line' and 'function'.
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*/
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protected function getTestMethodCaller() {
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$backtrace = debug_backtrace();
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// Find the test class that has the test method.
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while ($caller = Error::getLastCaller($backtrace)) {
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if (isset($caller['class']) && $caller['class'] === static::class) {
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break;
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}
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// If the test method is implemented by a test class's parent then the
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// class name of $this will not be part of the backtrace.
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// In that case we process the backtrace until the caller is not a
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// subclass of $this and return the previous caller.
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if (isset($last_caller) && (!isset($caller['class']) || !is_subclass_of($this, $caller['class']))) {
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// Return the last caller since that has to be the test class.
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$caller = $last_caller;
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break;
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}
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// Otherwise we have not reached our test class yet: save the last caller
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// and remove an element from to backtrace to process the next call.
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$last_caller = $caller;
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array_shift($backtrace);
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}
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return $caller;
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}
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}
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