Issue #2567861 by Antti J. Salminen, ZeiP, madhavvyas, kekkis, johnennew,...

Issue #2567861 by Antti J. Salminen, ZeiP, madhavvyas, kekkis, johnennew, boaloysius, Yogesh Pawar, Munavijayalakshmi, chx, alexpott: Add test for enabling modules with incompatible PHP version dependency

core/modules/system/src/Tests/Module/DependencyTest.php

@@ -90,6 +90,16 @@ public function testIncompatibleCoreVersionDependency() {
     $this->assert(count($checkbox) == 1, 'Checkbox for the module is disabled.');
   }
 
+  /**
+   * Tests failing PHP version requirements.
+   */
+  public function testIncompatiblePhpVersionDependency() {
+    $this->drupalGet('admin/modules');
+    $this->assertRaw('This module requires PHP version 6502.* and is incompatible with PHP version ' . phpversion() . '.', 'User is informed when the PHP dependency requirement of a module is not met.');
+    $checkbox = $this->xpath('//input[@type="checkbox" and @disabled="disabled" and @name="modules[system_incompatible_php_version_test][enable]"]');
+    $this->assert(count($checkbox) == 1, 'Checkbox for the module is disabled.');
+  }
+
   /**
    * Tests enabling a module that depends on a module which fails hook_requirements().
    */

core/modules/system/tests/modules/system_incompatible_php_version_test/system_incompatible_php_version_test.info.yml

+name: 'System incompatible PHP version test'
+type: module
+description: 'Support module for testing system dependencies.'
+package: Testing
+version: VERSION
+core: 8.x
+php: 6502