VersionTest.php

<?php

namespace Drupal\Tests\system\Functional\Module;


/**
 * Tests module version dependencies.
 *
 * @group Module
 */
class VersionTest extends ModuleTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Test version dependencies.
     */
    public function testModuleVersions() {
        $dependencies = [
            // Alternating between being compatible and incompatible with 8.x-2.4-beta3.
            // The first is always a compatible.
'common_test',
            // Branch incompatibility.
'common_test (1.x)',
            // Branch compatibility.
'common_test (2.x)',
            // Another branch incompatibility.
'common_test (>2.x)',
            // Another branch compatibility.
'common_test (<=2.x)',
            // Another branch incompatibility.
'common_test (<2.x)',
            // Another branch compatibility.
'common_test (>=2.x)',
            // Nonsense, misses a dash. Incompatible with everything.
'common_test (=8.x2.x, >=2.4)',
            // Core version is optional. Compatible.
'common_test (=8.x-2.x, >=2.4-alpha2)',
            // Test !=, explicitly incompatible.
'common_test (=2.x, !=2.4-beta3)',
            // Three operations. Compatible.
'common_test (=2.x, !=2.3, <2.5)',
            // Testing extra version. Incompatible.
'common_test (<=2.4-beta2)',
            // Testing extra version. Compatible.
'common_test (>2.4-beta2)',
            // Testing extra version. Incompatible.
'common_test (>2.4-rc0)',
        ];
        \Drupal::state()->set('system_test.dependencies', $dependencies);
        $n = count($dependencies);
        for ($i = 0; $i < $n; $i++) {
            $this->drupalGet('admin/modules');
            $checkbox = $this->xpath('//input[@id="edit-modules-module-test-enable"]');
            $this->assertEqual(!empty($checkbox[0]->getAttribute('disabled')), $i % 2, $dependencies[$i]);
        }
    }

}