function JavaScriptTestCase::testRenderOrder

Test JavaScript ordering.

File

modules/simpletest/tests/common.test, line 1881

Class

JavaScriptTestCase

Tests for the JavaScript system.

Code

function testRenderOrder() {
    // Add a bunch of JavaScript in strange ordering.
    drupal_add_js('(function($){alert("Weight 5 #1");})(jQuery);', array(
        'type' => 'inline',
        'scope' => 'footer',
        'weight' => 5,
    ));
    drupal_add_js('(function($){alert("Weight 0 #1");})(jQuery);', array(
        'type' => 'inline',
        'scope' => 'footer',
    ));
    drupal_add_js('(function($){alert("Weight 0 #2");})(jQuery);', array(
        'type' => 'inline',
        'scope' => 'footer',
    ));
    drupal_add_js('(function($){alert("Weight -8 #1");})(jQuery);', array(
        'type' => 'inline',
        'scope' => 'footer',
        'weight' => -8,
    ));
    drupal_add_js('(function($){alert("Weight -8 #2");})(jQuery);', array(
        'type' => 'inline',
        'scope' => 'footer',
        'weight' => -8,
    ));
    drupal_add_js('(function($){alert("Weight -8 #3");})(jQuery);', array(
        'type' => 'inline',
        'scope' => 'footer',
        'weight' => -8,
    ));
    drupal_add_js('http://example.com/example.js?Weight -5 #1', array(
        'type' => 'external',
        'scope' => 'footer',
        'weight' => -5,
    ));
    drupal_add_js('(function($){alert("Weight -8 #4");})(jQuery);', array(
        'type' => 'inline',
        'scope' => 'footer',
        'weight' => -8,
    ));
    drupal_add_js('(function($){alert("Weight 5 #2");})(jQuery);', array(
        'type' => 'inline',
        'scope' => 'footer',
        'weight' => 5,
    ));
    drupal_add_js('(function($){alert("Weight 0 #3");})(jQuery);', array(
        'type' => 'inline',
        'scope' => 'footer',
    ));
    // Construct the expected result from the regex.
    $expected = array(
        "-8 #1",
        "-8 #2",
        "-8 #3",
        "-8 #4",
        "-5 #1",
        // The external script.
"0 #1",
        "0 #2",
        "0 #3",
        "5 #1",
        "5 #2",
    );
    // Retrieve the rendered JavaScript and test against the regex.
    $js = drupal_get_js('footer');
    $matches = array();
    if (preg_match_all('/Weight\\s([-0-9]+\\s[#0-9]+)/', $js, $matches)) {
        $result = $matches[1];
    }
    else {
        $result = array();
    }
    $this->assertIdentical($result, $expected, 'JavaScript is added in the expected weight order.');
}