function PasswordHashingTest::testPasswordHashing in Drupal 7

Test password hashing.

File

modules/simpletest/tests/password.test, line 30

Provides unit tests for password.inc.

Class

PasswordHashingTest

Unit tests for password hashing API.

Code

function testPasswordHashing() {

  // Set a log2 iteration count that is deliberately out of bounds to test
  // that it is corrected to be within bounds.
  variable_set('password_count_log2', 1);

  // Set up a fake $account with a password 'baz', hashed with md5.
  $password = 'baz';
  $account = (object) array(
    'name' => 'foo',
    'pass' => md5($password),
  );

  // The md5 password should be flagged as needing an update.
  $this
    ->assertTrue(user_needs_new_hash($account), 'User with md5 password needs a new hash.');

  // Re-hash the password.
  $old_hash = $account->pass;
  $account->pass = user_hash_password($password);
  $this
    ->assertIdentical(_password_get_count_log2($account->pass), DRUPAL_MIN_HASH_COUNT, 'Re-hashed password has the minimum number of log2 iterations.');
  $this
    ->assertTrue($account->pass != $old_hash, 'Password hash changed.');
  $this
    ->assertTrue(user_check_password($password, $account), 'Password check succeeds.');

  // Since the log2 setting hasn't changed and the user has a valid password,
  // user_needs_new_hash() should return FALSE.
  $this
    ->assertFalse(user_needs_new_hash($account), 'User does not need a new hash.');

  // Increment the log2 iteration to MIN + 1.
  variable_set('password_count_log2', DRUPAL_MIN_HASH_COUNT + 1);
  $this
    ->assertTrue(user_needs_new_hash($account), 'User needs a new hash after incrementing the log2 count.');

  // Re-hash the password.
  $old_hash = $account->pass;
  $account->pass = user_hash_password($password);
  $this
    ->assertIdentical(_password_get_count_log2($account->pass), DRUPAL_MIN_HASH_COUNT + 1, 'Re-hashed password has the correct number of log2 iterations.');
  $this
    ->assertTrue($account->pass != $old_hash, 'Password hash changed again.');

  // Now the hash should be OK.
  $this
    ->assertFalse(user_needs_new_hash($account), 'Re-hashed password does not need a new hash.');
  $this
    ->assertTrue(user_check_password($password, $account), 'Password check succeeds with re-hashed password.');
}