enhance tests with mocked composer's runtime api

Author: lavarou

tests/integration/autoloader/autoload-with-composer/vendor/composer/InstalledVersions.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace Composer;
+class InstalledVersions
+{
+    private static $installed = [
+        'vendor1/package1' => '1.1.3',
+        'vendor2/package2' => '2.1.5'
+    ];
+
+    public static function getVersion(string $packageName)
+    {
+        return self::$installed[$packageName];
+    }
+
+    public static function getInstalledPackages()
+    {
+        // Return the package names
+        return array_keys(self::$installed);
+    }
+}

tests/integration/autoloader/test_autoloader_with_composer.php

@@ -6,7 +6,8 @@
 
 /*DESCRIPTION
 Test detection of autoloader when Composer is used. Supportability metrics for
-Autoloader and Composer libraries should be present.
+Autoloader and Composer libraries should be present. Additionally, package
+supportability metrics should be present for each package detected.
 */
 
 /*INI
@@ -15,6 +16,8 @@
 /*EXPECT_METRICS_EXIST
 Supportability/library/Autoloader/detected, 1
 Supportability/library/Composer/detected, 1
+Supportability/PHP/package/vendor1/package1/1/detected, 1
+Supportability/PHP/package/vendor2/package2/2/detected, 1
 */
 
 /*EXPECT_TRACED_ERRORS null*/