FileSaveUploadTest

  1. drupal
    1. 8
    2. 7

Test the file_save_upload() function.

Hierarchy

Properties

NameDescription
DrupalTestCase::$assertionsAssertions thrown in that test case.
DrupalTestCase::$databasePrefixThe database prefix of this test run.
DrupalTestCase::$originalFileDirectoryThe original file directory, before it was changed for testing purposes.
DrupalTestCase::$resultsCurrent results of this test case.
DrupalTestCase::$skipClassesThis class is skipped when looking for the source of an assertion.
DrupalTestCase::$testIdThe test run ID.
DrupalTestCase::$timeLimitTime limit for the test.
DrupalWebTestCase::$additionalCurlOptionsAdditional cURL options.
DrupalWebTestCase::$contentThe content of the page currently loaded in the internal browser.
DrupalWebTestCase::$cookieFileThe current cookie file used by cURL.
DrupalWebTestCase::$curlHandleThe handle of the current cURL connection.
DrupalWebTestCase::$drupalSettingsThe value of the Drupal.settings JavaScript variable for the page currently loaded in the internal browser.
DrupalWebTestCase::$elementsThe parsed version of the page.
DrupalWebTestCase::$generatedTestFilesWhether the files were copied to the test files directory.
DrupalWebTestCase::$headersThe headers of the page currently loaded in the internal browser.
DrupalWebTestCase::$httpauth_credentialsHTTP authentication credentials (<username>:<password>).
DrupalWebTestCase::$httpauth_methodHTTP authentication method
DrupalWebTestCase::$loggedInUserThe current user logged in using the internal browser.
DrupalWebTestCase::$originalShutdownCallbacksThe original shutdown handlers array, before it was cleaned for testing purposes.
DrupalWebTestCase::$originalUserThe original user, before it was changed to a clean uid = 1 for testing purposes.
DrupalWebTestCase::$plainTextContentThe content of the page currently loaded in the internal browser (plain text version).
DrupalWebTestCase::$profileThe profile to install as a basis for testing.
DrupalWebTestCase::$redirect_countThe number of redirects followed during the handling of a request.
DrupalWebTestCase::$session_idThe current session ID, if available.
DrupalWebTestCase::$session_nameThe current session name, if available.
DrupalWebTestCase::$urlThe URL currently loaded in the internal browser.
FileSaveUploadTest::$imageAn image file path for uploading.
FileSaveUploadTest::$maxFidBeforeThe largest file id when the test starts.
FileSaveUploadTest::$phpfileA PHP file path for upload security testing.

Functions & methods

NameDescription
DrupalTestCase::assertInternal helper: stores the assert.
DrupalTestCase::assertEqualCheck to see if two values are equal.
DrupalTestCase::assertFalseCheck to see if a value is false (an empty string, 0, NULL, or FALSE).
DrupalTestCase::assertIdenticalCheck to see if two values are identical.
DrupalTestCase::assertNotEqualCheck to see if two values are not equal.
DrupalTestCase::assertNotIdenticalCheck to see if two values are not identical.
DrupalTestCase::assertNotNullCheck to see if a value is not NULL.
DrupalTestCase::assertNullCheck to see if a value is NULL.
DrupalTestCase::assertTrueCheck to see if a value is not false (not an empty string, 0, NULL, or FALSE).
DrupalTestCase::deleteAssertDelete an assertion record by message ID.
DrupalTestCase::errorFire an error assertion.
DrupalTestCase::errorHandlerHandle errors during test runs.
DrupalTestCase::exceptionHandlerHandle exceptions.
DrupalTestCase::failFire an assertion that is always negative.
DrupalTestCase::generatePermutationsConverts a list of possible parameters into a stack of permutations.
DrupalTestCase::getAssertionCallCycles through backtrace until the first non-assertion method is found.
DrupalTestCase::insertAssertStore an assertion from outside the testing context.
DrupalTestCase::passFire an assertion that is always positive.
DrupalTestCase::randomNameGenerates a random string containing letters and numbers.
DrupalTestCase::randomStringGenerates a random string of ASCII characters of codes 32 to 126.
DrupalTestCase::runRun all tests in this class.
DrupalTestCase::verboseLogs verbose message in a text file.
DrupalWebTestCase::assertFieldAsserts that a field exists with the given name or id.
DrupalWebTestCase::assertFieldByIdAsserts that a field exists in the current page with the given id and value.
DrupalWebTestCase::assertFieldByNameAsserts that a field exists in the current page with the given name and value.
DrupalWebTestCase::assertFieldByXPathAsserts that a field exists in the current page by the given XPath.
DrupalWebTestCase::assertFieldCheckedAsserts that a checkbox field in the current page is checked.
DrupalWebTestCase::assertLinkPass if a link with the specified label is found, and optional with the specified index.
DrupalWebTestCase::assertLinkByHrefPass if a link containing a given href (part) is found.
DrupalWebTestCase::assertMailAsserts that the most recently sent e-mail message has the given value.
DrupalWebTestCase::assertMailPatternAsserts that the most recently sent e-mail message has the pattern in it.
DrupalWebTestCase::assertMailStringAsserts that the most recently sent e-mail message has the string in it.
DrupalWebTestCase::assertNoDuplicateIdsAsserts that each HTML ID is used for just a single element.
DrupalWebTestCase::assertNoFieldAsserts that a field does not exist with the given name or id.
DrupalWebTestCase::assertNoFieldByIdAsserts that a field does not exist with the given id and value.
DrupalWebTestCase::assertNoFieldByNameAsserts that a field does not exist with the given name and value.
DrupalWebTestCase::assertNoFieldByXPathAsserts that a field does not exist in the current page by the given XPath.
DrupalWebTestCase::assertNoFieldCheckedAsserts that a checkbox field in the current page is not checked.
DrupalWebTestCase::assertNoLinkPass if a link with the specified label is not found.
DrupalWebTestCase::assertNoLinkByHrefPass if a link containing a given href (part) is not found.
DrupalWebTestCase::assertNoOptionSelectedAsserts that a select option in the current page is not checked.
DrupalWebTestCase::assertNoPatternWill trigger a pass if the perl regex pattern is not present in raw content.
DrupalWebTestCase::assertNoRawPass if the raw text is NOT found on the loaded page, fail otherwise. Raw text refers to the raw HTML that the page generated.
DrupalWebTestCase::assertNoResponseAsserts the page did not return the specified response code.
DrupalWebTestCase::assertNoTextPass if the text is NOT found on the text version of the page. The text version is the equivalent of what a user would see when viewing through a web browser. In other words the HTML has been filtered out of the contents.
DrupalWebTestCase::assertNoTitlePass if the page title is not the given string.
DrupalWebTestCase::assertNoUniqueTextPass if the text is found MORE THAN ONCE on the text version of the page.
DrupalWebTestCase::assertOptionSelectedAsserts that a select option in the current page is checked.
DrupalWebTestCase::assertPatternWill trigger a pass if the Perl regex pattern is found in the raw content.
DrupalWebTestCase::assertRawPass if the raw text IS found on the loaded page, fail otherwise. Raw text refers to the raw HTML that the page generated.
DrupalWebTestCase::assertResponseAsserts the page responds with the specified response code.
DrupalWebTestCase::assertTextPass if the text IS found on the text version of the page. The text version is the equivalent of what a user would see when viewing through a web browser. In other words the HTML has been filtered out of the contents.
DrupalWebTestCase::assertTextHelperHelper for assertText and assertNoText.
DrupalWebTestCase::assertTitlePass if the page title is the given string.
DrupalWebTestCase::assertUniqueTextPass if the text is found ONLY ONCE on the text version of the page.
DrupalWebTestCase::assertUniqueTextHelperHelper for assertUniqueText and assertNoUniqueText.
DrupalWebTestCase::assertUrlPass if the internal browser's URL matches the given path.
DrupalWebTestCase::buildXPathQueryBuilds an XPath query.
DrupalWebTestCase::checkForMetaRefreshCheck for meta refresh tag and if found call drupalGet() recursively. This function looks for the http-equiv attribute to be set to "Refresh" and is case-sensitive.
DrupalWebTestCase::checkPermissionsCheck to make sure that the array of permissions are valid.
DrupalWebTestCase::clickLinkFollows a link by name.
DrupalWebTestCase::constructFieldXpathHelper function: construct an XPath for the given set of attributes and value.
DrupalWebTestCase::cronRunRuns cron in the Drupal installed by Simpletest.
DrupalWebTestCase::curlCloseClose the cURL handler and unset the handler.
DrupalWebTestCase::curlExecInitializes and executes a cURL request.
DrupalWebTestCase::curlHeaderCallbackReads headers and registers errors received from the tested site.
DrupalWebTestCase::curlInitializeInitializes the cURL connection.
DrupalWebTestCase::drupalCompareFilesCompare two files based on size and file name.
DrupalWebTestCase::drupalCreateContentTypeCreates a custom content type based on default settings.
DrupalWebTestCase::drupalCreateNodeCreates a node based on default settings.
DrupalWebTestCase::drupalCreateRoleInternal helper function; Create a role with specified permissions.
DrupalWebTestCase::drupalCreateUserCreate a user with a given set of permissions. The permissions correspond to the names given on the privileges page.
DrupalWebTestCase::drupalGetRetrieves a Drupal path or an absolute path.
DrupalWebTestCase::drupalGetAJAXRetrieve a Drupal path or an absolute path and JSON decode the result.
DrupalWebTestCase::drupalGetContentGets the current raw HTML of requested page.
DrupalWebTestCase::drupalGetHeaderGets the value of an HTTP response header. If multiple requests were required to retrieve the page, only the headers from the last request will be checked by default. However, if TRUE is passed as the second argument, all requests will be processed…
DrupalWebTestCase::drupalGetHeadersGets the HTTP response headers of the requested page. Normally we are only interested in the headers returned by the last request. However, if a page is redirected or HTTP authentication is in use, multiple requests will be required to retrieve the…
DrupalWebTestCase::drupalGetMailsGets an array containing all e-mails sent during this test case.
DrupalWebTestCase::drupalGetNodeByTitleGet a node from the database based on its title.
DrupalWebTestCase::drupalGetSettingsGets the value of the Drupal.settings JavaScript variable for the currently loaded page.
DrupalWebTestCase::drupalGetTestFilesGet a list files that can be used in tests.
DrupalWebTestCase::drupalGetTokenGenerate a token for the currently logged in user.
DrupalWebTestCase::drupalHeadRetrieves only the headers for a Drupal path or an absolute path.
DrupalWebTestCase::drupalLoginLog in a user with the internal browser.
DrupalWebTestCase::drupalLogout
DrupalWebTestCase::drupalPostExecute a POST request on a Drupal page. It will be done as usual POST request with SimpleBrowser.
DrupalWebTestCase::drupalPostAJAXExecute an Ajax submission.
DrupalWebTestCase::drupalSetContentSets the raw HTML content. This can be useful when a page has been fetched outside of the internal browser and assertions need to be made on the returned page.
DrupalWebTestCase::drupalSetSettingsSets the value of the Drupal.settings JavaScript variable for the currently loaded page.
DrupalWebTestCase::getAbsoluteUrlTakes a path and returns an absolute path.
DrupalWebTestCase::getAllOptionsGet all option elements, including nested options, in a select.
DrupalWebTestCase::getSelectedItemGet the selected value from a select field.
DrupalWebTestCase::getUrlGet the current url from the cURL handler.
DrupalWebTestCase::handleFormHandle form input related to drupalPost(). Ensure that the specified fields exist and attempt to create POST data in the correct manner for the particular field type.
DrupalWebTestCase::parseParse content returned from curlExec using DOM and SimpleXML.
DrupalWebTestCase::preloadRegistryPreload the registry from the testing site.
DrupalWebTestCase::refreshVariablesRefresh the in-memory set of variables. Useful after a page request is made that changes a variable in a different thread.
DrupalWebTestCase::resetAllReset all data structures after having enabled new modules.
DrupalWebTestCase::tearDownDelete created files and temporary files directory, delete the tables created by setUp(), and reset the database prefix.
DrupalWebTestCase::verboseEmailOutputs to verbose the most recent $count emails sent.
DrupalWebTestCase::xpathPerform an xpath search on the contents of the internal browser. The search is relative to the root element (HTML tag normally) of the page.
DrupalWebTestCase::__constructConstructor for DrupalWebTestCase. Overrides DrupalTestCase::__construct
FileHookTestCase::assertFileHookCalledAssert that a hook_file_* hook was called a certain number of times.
FileHookTestCase::assertFileHooksCalledAssert that all of the specified hook_file_* hooks were called once, other values result in failure.
FileSaveUploadTest::getInfo
FileSaveUploadTest::setUpGenerates a random database prefix, runs the install scripts on the prefixed database and enable the specified modules. After installation many caches are flushed and the internal browser is setup so that the page requests will run on the new prefix.… Overrides FileHookTestCase::setUp
FileSaveUploadTest::testExistingErrorTest for failure when uploading over a file that already exists.
FileSaveUploadTest::testExistingRenameTest renaming when uploading over a file that already exists.
FileSaveUploadTest::testExistingReplaceTest replacement when uploading over a file that already exists.
FileSaveUploadTest::testHandleDangerousFileTest dangerous file handling.
FileSaveUploadTest::testHandleExtensionTest extension handling.
FileSaveUploadTest::testHandleFileMungeTest file munge handling.
FileSaveUploadTest::testNormalTest the file_save_upload() function.
FileSaveUploadTest::testNoUploadTest for no failures when not uploading a file.
FileTestCase::assertDifferentFileCheck that two files are not the same by comparing the fid and filepath.
FileTestCase::assertDirectoryPermissionsHelper function to test the permissions of a directory.
FileTestCase::assertFilePermissionsHelper function to test the permissions of a file.
FileTestCase::assertFileUnchangedCheck that two files have the same values for all fields other than the timestamp.
FileTestCase::assertSameFileCheck that two files are the same by comparing the fid and filepath.
FileTestCase::createDirectoryCreate a directory and assert it exists.
FileTestCase::createFileCreate a file and save it to the files table and assert that it occurs correctly.

modules/simpletest/tests/file.test, line 567

View source
<?php
class FileSaveUploadTest extends FileHookTestCase {
  /**
   * An image file path for uploading.
   */
  protected $image;

  /**
   * A PHP file path for upload security testing.
   */
  protected $phpfile;

  /**
   * The largest file id when the test starts.
   */
  protected $maxFidBefore;

  public static function getInfo() {
    return array(
      'name' => 'File uploading', 
      'description' => 'Tests the file uploading functions.', 
      'group' => 'File API',
    );
  }

  function setUp() {
    parent::setUp();
    $account = $this->drupalCreateUser(array('access content'));
    $this->drupalLogin($account);

    $image_files = $this->drupalGetTestFiles('image');
    $this->image = current($image_files);

    list(, $this->image_extension) = explode('.', $this->image->filename);
    $this->assertTrue(is_file($this->image->uri), t("The image file we're going to upload exists."));

    $this->phpfile = current($this->drupalGetTestFiles('php'));
    $this->assertTrue(is_file($this->phpfile->uri), t("The PHP file we're going to upload exists."));

    $this->maxFidBefore = db_query('SELECT MAX(fid) AS fid FROM {file_managed}')->fetchField();

    // Upload with replace to guarantee there's something there.
    $edit = array(
      'file_test_replace' => FILE_EXISTS_REPLACE, 
      'files[file_test_upload]' => drupal_realpath($this->image->uri),
    );
    $this->drupalPost('file-test/upload', $edit, t('Submit'));
    $this->assertResponse(200, t('Received a 200 response for posted test file.'));
    $this->assertRaw(t('You WIN!'), t('Found the success message.'));

    // Check that the correct hooks were called then clean out the hook
    // counters.
    $this->assertFileHooksCalled(array('validate', 'insert'));
    file_test_reset();
  }

  /**
   * Test the file_save_upload() function.
   */
  function testNormal() {
    $max_fid_after = db_query('SELECT MAX(fid) AS fid FROM {file_managed}')->fetchField();
    $this->assertTrue($max_fid_after > $this->maxFidBefore, t('A new file was created.'));
    $file1 = file_load($max_fid_after);
    $this->assertTrue($file1, t('Loaded the file.'));
    // MIME type of the uploaded image may be either image/jpeg or image/png.
    $this->assertEqual(substr($file1->filemime, 0, 5), 'image', 'A MIME type was set.');

    // Reset the hook counters to get rid of the 'load' we just called.
    file_test_reset();

    // Upload a second file.
    $max_fid_before = db_query('SELECT MAX(fid) AS fid FROM {file_managed}')->fetchField();
    $image2 = current($this->drupalGetTestFiles('image'));
    $edit = array('files[file_test_upload]' => drupal_realpath($image2->uri));
    $this->drupalPost('file-test/upload', $edit, t('Submit'));
    $this->assertResponse(200, t('Received a 200 response for posted test file.'));
    $this->assertRaw(t('You WIN!'));
    $max_fid_after = db_query('SELECT MAX(fid) AS fid FROM {file_managed}')->fetchField();

    // Check that the correct hooks were called.
    $this->assertFileHooksCalled(array('validate', 'insert'));

    $file2 = file_load($max_fid_after);
    $this->assertTrue($file2);
    // MIME type of the uploaded image may be either image/jpeg or image/png.
    $this->assertEqual(substr($file2->filemime, 0, 5), 'image', 'A MIME type was set.');

    // Load both files using file_load_multiple().
    $files = file_load_multiple(array($file1->fid, $file2->fid));
    $this->assertTrue(isset($files[$file1->fid]), t('File was loaded successfully'));
    $this->assertTrue(isset($files[$file2->fid]), t('File was loaded successfully'));

    // Upload a third file to a subdirectory.
    $image3 = current($this->drupalGetTestFiles('image'));
    $image3_realpath = drupal_realpath($image3->uri);
    $dir = $this->randomName();
    $edit = array(
      'files[file_test_upload]' => $image3_realpath, 
      'file_subdir' => $dir,
    );
    $this->drupalPost('file-test/upload', $edit, t('Submit'));
    $this->assertResponse(200, t('Received a 200 response for posted test file.'));
    $this->assertRaw(t('You WIN!'));
    $this->assertTrue(is_file('temporary://' . $dir . '/' . trim(basename($image3_realpath))));

    // Check that file_load_multiple() with no arguments returns FALSE.
    $this->assertFalse(file_load_multiple(), t('No files were loaded.'));
  }

  /**
   * Test extension handling.
   */
  function testHandleExtension() {
    // The file being tested is a .gif which is in the default safe list
    // of extensions to allow when the extension validator isn't used. This is
    // implicitly tested at the testNormal() test. Here we tell
    // file_save_upload() to only allow ".foo".
    $extensions = 'foo';
    $edit = array(
      'file_test_replace' => FILE_EXISTS_REPLACE, 
      'files[file_test_upload]' => drupal_realpath($this->image->uri), 
      'extensions' => $extensions,
    );

    $this->drupalPost('file-test/upload', $edit, t('Submit'));
    $this->assertResponse(200, t('Received a 200 response for posted test file.'));
    $message = t('Only files with the following extensions are allowed: ') . '<em class="placeholder">' . $extensions . '</em>';
    $this->assertRaw($message, t('Can\'t upload a disallowed extension'));
    $this->assertRaw(t('Epic upload FAIL!'), t('Found the failure message.'));

    // Check that the correct hooks were called.
    $this->assertFileHooksCalled(array('validate'));

    // Reset the hook counters.
    file_test_reset();

    $extensions = 'foo ' . $this->image_extension;
    // Now tell file_save_upload() to allow the extension of our test image.
    $edit = array(
      'file_test_replace' => FILE_EXISTS_REPLACE, 
      'files[file_test_upload]' => drupal_realpath($this->image->uri), 
      'extensions' => $extensions,
    );

    $this->drupalPost('file-test/upload', $edit, t('Submit'));
    $this->assertResponse(200, t('Received a 200 response for posted test file.'));
    $this->assertNoRaw(t('Only files with the following extensions are allowed:'), t('Can upload an allowed extension.'));
    $this->assertRaw(t('You WIN!'), t('Found the success message.'));

    // Check that the correct hooks were called.
    $this->assertFileHooksCalled(array('validate', 'load', 'update'));

    // Reset the hook counters.
    file_test_reset();

    // Now tell file_save_upload() to allow any extension.
    $edit = array(
      'file_test_replace' => FILE_EXISTS_REPLACE, 
      'files[file_test_upload]' => drupal_realpath($this->image->uri), 
      'allow_all_extensions' => TRUE,
    );
    $this->drupalPost('file-test/upload', $edit, t('Submit'));
    $this->assertResponse(200, t('Received a 200 response for posted test file.'));
    $this->assertNoRaw(t('Only files with the following extensions are allowed:'), t('Can upload any extension.'));
    $this->assertRaw(t('You WIN!'), t('Found the success message.'));

    // Check that the correct hooks were called.
    $this->assertFileHooksCalled(array('validate', 'load', 'update'));
  }

  /**
   * Test dangerous file handling.
   */
  function testHandleDangerousFile() {
    // Allow the .php extension and make sure it gets renamed to .txt for
    // safety. Also check to make sure its MIME type was changed.
    $edit = array(
      'file_test_replace' => FILE_EXISTS_REPLACE, 
      'files[file_test_upload]' => drupal_realpath($this->phpfile->uri), 
      'is_image_file' => FALSE, 
      'extensions' => 'php',
    );

    $this->drupalPost('file-test/upload', $edit, t('Submit'));
    $this->assertResponse(200, t('Received a 200 response for posted test file.'));
    $message = t('For security reasons, your upload has been renamed to ') . '<em class="placeholder">' . $this->phpfile->filename . '.txt' . '</em>';
    $this->assertRaw($message, t('Dangerous file was renamed.'));
    $this->assertRaw(t('File MIME type is text/plain.'), t('Dangerous file\'s MIME type was changed.'));
    $this->assertRaw(t('You WIN!'), t('Found the success message.'));

    // Check that the correct hooks were called.
    $this->assertFileHooksCalled(array('validate', 'insert'));

    // Ensure dangerous files are not renamed when insecure uploads is TRUE.
    // Turn on insecure uploads.
    variable_set('allow_insecure_uploads', 1);
    // Reset the hook counters.
    file_test_reset();

    $this->drupalPost('file-test/upload', $edit, t('Submit'));
    $this->assertResponse(200, t('Received a 200 response for posted test file.'));
    $this->assertNoRaw(t('For security reasons, your upload has been renamed'), t('Found no security message.'));
    $this->assertRaw(t('File name is !filename', array('!filename' => $this->phpfile->filename)), t('Dangerous file was not renamed when insecure uploads is TRUE.'));
    $this->assertRaw(t('You WIN!'), t('Found the success message.'));

    // Check that the correct hooks were called.
    $this->assertFileHooksCalled(array('validate', 'insert'));

    // Turn off insecure uploads.
    variable_set('allow_insecure_uploads', 0);
  }

  /**
   * Test file munge handling.
   */
  function testHandleFileMunge() {
    // Ensure insecure uploads are disabled for this test.
    variable_set('allow_insecure_uploads', 0);
    $this->image = file_move($this->image, $this->image->uri . '.foo.' . $this->image_extension);

    // Reset the hook counters to get rid of the 'move' we just called.
    file_test_reset();

    $extensions = $this->image_extension;
    $edit = array(
      'files[file_test_upload]' => drupal_realpath($this->image->uri), 
      'extensions' => $extensions,
    );

    $munged_filename = $this->image->filename;
    $munged_filename = substr($munged_filename, 0, strrpos($munged_filename, '.'));
    $munged_filename .= '_.' . $this->image_extension;

    $this->drupalPost('file-test/upload', $edit, t('Submit'));
    $this->assertResponse(200, t('Received a 200 response for posted test file.'));
    $this->assertRaw(t('For security reasons, your upload has been renamed'), t('Found security message.'));
    $this->assertRaw(t('File name is !filename', array('!filename' => $munged_filename)), t('File was successfully munged.'));
    $this->assertRaw(t('You WIN!'), t('Found the success message.'));

    // Check that the correct hooks were called.
    $this->assertFileHooksCalled(array('validate', 'insert'));

    // Ensure we don't munge files if we're allowing any extension.
    // Reset the hook counters.
    file_test_reset();

    $edit = array(
      'files[file_test_upload]' => drupal_realpath($this->image->uri), 
      'allow_all_extensions' => TRUE,
    );

    $this->drupalPost('file-test/upload', $edit, t('Submit'));
    $this->assertResponse(200, t('Received a 200 response for posted test file.'));
    $this->assertNoRaw(t('For security reasons, your upload has been renamed'), t('Found no security message.'));
    $this->assertRaw(t('File name is !filename', array('!filename' => $this->image->filename)), t('File was not munged when allowing any extension.'));
    $this->assertRaw(t('You WIN!'), t('Found the success message.'));

    // Check that the correct hooks were called.
    $this->assertFileHooksCalled(array('validate', 'insert'));
  }

  /**
   * Test renaming when uploading over a file that already exists.
   */
  function testExistingRename() {
    $edit = array(
      'file_test_replace' => FILE_EXISTS_RENAME, 
      'files[file_test_upload]' => drupal_realpath($this->image->uri),
    );
    $this->drupalPost('file-test/upload', $edit, t('Submit'));
    $this->assertResponse(200, t('Received a 200 response for posted test file.'));
    $this->assertRaw(t('You WIN!'), t('Found the success message.'));

    // Check that the correct hooks were called.
    $this->assertFileHooksCalled(array('validate', 'insert'));
  }

  /**
   * Test replacement when uploading over a file that already exists.
   */
  function testExistingReplace() {
    $edit = array(
      'file_test_replace' => FILE_EXISTS_REPLACE, 
      'files[file_test_upload]' => drupal_realpath($this->image->uri),
    );
    $this->drupalPost('file-test/upload', $edit, t('Submit'));
    $this->assertResponse(200, t('Received a 200 response for posted test file.'));
    $this->assertRaw(t('You WIN!'), t('Found the success message.'));

    // Check that the correct hooks were called.
    $this->assertFileHooksCalled(array('validate', 'load', 'update'));
  }

  /**
   * Test for failure when uploading over a file that already exists.
   */
  function testExistingError() {
    $edit = array(
      'file_test_replace' => FILE_EXISTS_ERROR, 
      'files[file_test_upload]' => drupal_realpath($this->image->uri),
    );
    $this->drupalPost('file-test/upload', $edit, t('Submit'));
    $this->assertResponse(200, t('Received a 200 response for posted test file.'));
    $this->assertRaw(t('Epic upload FAIL!'), t('Found the failure message.'));

    // Check that the no hooks were called while failing.
    $this->assertFileHooksCalled(array());
  }

  /**
   * Test for no failures when not uploading a file.
   */
  function testNoUpload() {
    $this->drupalPost('file-test/upload', array(), t('Submit'));
    $this->assertNoRaw(t('Epic upload FAIL!'), t('Failure message not found.'));
  }
}
?>