function LibrariesTestCase::testLibrariesDetectDependencies in Libraries API 7.3

Tests libraries_detect_dependencies().

File

tests/libraries.test, line 82

Tests for Libraries API.

Class

LibrariesTestCase

Tests basic detection and loading of libraries.

Code

function testLibrariesDetectDependencies() {
  $library = array(
    'name' => 'Example',
    'dependencies' => array(
      'example_missing',
    ),
  );
  libraries_detect_dependencies($library);
  $this
    ->assertEqual($library['error'], 'missing dependency', 'libraries_detect_dependencies() detects missing dependency');
  $error_message = t('The %dependency library, which the %library library depends on, is not installed.', array(
    '%dependency' => 'Example missing',
    '%library' => $library['name'],
  ));
  $this
    ->verbose("Expected:<br>{$error_message}");
  $this
    ->verbose('Actual:<br>' . $library['error message']);
  $this
    ->assertEqual($library['error message'], $error_message, 'Correct error message for a missing dependency');

  // Test versioned dependencies.
  $version = '1.1';
  $compatible = array(
    '1.1',
    '<=1.1',
    '>=1.1',
    '<1.2',
    '<2.0',
    '>1.0',
    '>1.0-rc1',
    '>1.0-beta2',
    '>1.0-alpha3',
    '>0.1',
    '<1.2, >1.0',
    '>0.1, <=1.1',
  );
  $incompatible = array(
    '1.2',
    '2.0',
    '<1.1',
    '>1.1',
    '<=1.0',
    '<=1.0-rc1',
    '<=1.0-beta2',
    '<=1.0-alpha3',
    '>=1.2',
    '<1.1, >0.9',
    '>=0.1, <1.1',
  );
  $library = array(
    'name' => 'Example',
  );
  foreach ($compatible as $version_string) {
    $library['dependencies'][0] = "example_dependency ({$version_string})";

    // libraries_detect_dependencies() is a post-detect callback, so
    // 'installed' is already set, when it is called. It sets the value to
    // FALSE for missing or incompatible dependencies.
    $library['installed'] = TRUE;
    libraries_detect_dependencies($library);
    $this
      ->verbose('Library:<pre>' . var_export($library, TRUE) . '</pre>');
    $this
      ->assertTrue($library['installed'], "libraries_detect_dependencies() detects compatible version string: '{$version_string}' is compatible with '{$version}'");
  }
  foreach ($incompatible as $version_string) {
    $library['dependencies'][0] = "example_dependency ({$version_string})";
    $library['installed'] = TRUE;
    unset($library['error'], $library['error message']);
    libraries_detect_dependencies($library);
    $this
      ->verbose('Library:<pre>' . var_export($library, TRUE) . '</pre>');
    $this
      ->assertEqual($library['error'], 'incompatible dependency', "libraries_detect_dependencies() detects incompatible version strings: '{$version_string}' is incompatible with '{$version}'");
  }

  // Instead of repeating this assertion for each version string, we just
  // re-use the $library variable from the foreach loop.
  $error_message = t('The version %dependency_version of the %dependency library is not compatible with the %library library.', array(
    '%dependency_version' => $version,
    '%dependency' => 'Example dependency',
    '%library' => $library['name'],
  ));
  $this
    ->verbose("Expected:<br>{$error_message}");
  $this
    ->verbose('Actual:<br>' . $library['error message']);
  $this
    ->assertEqual($library['error message'], $error_message, 'Correct error message for an incompatible dependency');
}