2 files changed, 75 insertions, 0 deletions
diff --git a/crates/shirabe/tests/plugin/fixtures/alias-v1/Alias/Plugin.php b/crates/shirabe/tests/plugin/fixtures/alias-v1/Alias/Plugin.php
new file mode 100644
index 00000000..373348e8
--- /dev/null
+++ b/crates/shirabe/tests/plugin/fixtures/alias-v1/Alias/Plugin.php
@@ -0,0 +1,63 @@
+<?php
+
+namespace Alias;
+
+use Composer\Composer;
+use Composer\IO\IOInterface;
+use Composer\Package\AliasPackage;
+use Composer\Package\CompleteAliasPackage;
+use Composer\Package\RootAliasPackage;
+use Composer\Plugin\PluginInterface;
+
+class Plugin implements PluginInterface
+{
+    public function activate(Composer $composer, IOInterface $io)
+    {
+        $aliased = null;
+        foreach ($composer->getRepositoryManager()->getLocalRepository()->getPackages() as $package) {
+            if (!$package instanceof AliasPackage) {
+                continue;
+            }
+            $aliased = $package->getAliasOf();
+            $io->write('alias: ' . self::describe($package));
+            $io->write('alias description: ' . $package->getDescription());
+            $io->write('alias self-version: ' . ($package->hasSelfVersionRequires() ? 'yes' : 'no'));
+            $io->write('alias root-flag: ' . ($package->isRootPackageAlias() ? 'yes' : 'no'));
+            $package->setRootPackageAlias(true);
+            $io->write('alias root-flag: ' . ($package->isRootPackageAlias() ? 'yes' : 'no'));
+        }
+
+        $root = $composer->getPackage();
+        if (!$root instanceof RootAliasPackage) {
+            throw new \RuntimeException('not a RootAliasPackage: ' . get_class($root));
+        }
+        $io->write('root: ' . self::describe($root));
+        $io->write('root aliasOf identity: ' . ($root->getAliasOf() === $root->getAliasOf() ? 'same' : 'distinct'));
+        $io->write('root minimum stability: ' . $root->getMinimumStability());
+        $root->setMinimumStability('dev');
+        $root->setExtra(['seen-by' => 'alias-v1']);
+
+        $built = new CompleteAliasPackage($aliased, '9.9.9.9', '9.9.9');
+        $io->write('built: ' . self::describe($built));
+    }
+
+    public function deactivate(Composer $composer, IOInterface $io)
+    {
+    }
+
+    public function uninstall(Composer $composer, IOInterface $io)
+    {
+    }
+
+    private static function describe(AliasPackage $package): string
+    {
+        return sprintf(
+            '%s %s %s of %s %s',
+            get_class($package),
+            $package->getName(),
+            $package->getPrettyVersion(),
+            get_class($package->getAliasOf()),
+            $package->getAliasOf()->getPrettyVersion()
+        );
+    }
+}
diff --git a/crates/shirabe/tests/plugin/fixtures/alias-v1/composer.json b/crates/shirabe/tests/plugin/fixtures/alias-v1/composer.json
new file mode 100644
index 00000000..ac831b6e
--- /dev/null
+++ b/crates/shirabe/tests/plugin/fixtures/alias-v1/composer.json
@@ -0,0 +1,12 @@
+{
+    "name": "alias-v1",
+    "version": "1.0.0",
+    "type": "composer-plugin",
+    "autoload": { "psr-0": { "Alias": "" } },
+    "extra": {
+        "class": "Alias\\Plugin"
+    },
+    "require": {
+        "composer-plugin-api": "^2.0"
+    }
+}