test: port downloader/installer/io/json/event-dispatcher/functional stubs

All ignored: these mock IO/HttpDownloader (curl)/ProcessExecutor/installers,
use ZipArchive/JsonManipulator todo!()s, need Symfony console or schema
validation, reflect into ClassLoader, or run end-to-end install/functional
fixtures. Wires up the event_dispatcher test target.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/crates/shirabe/tests/downloader/file_downloader_test.rs b/crates/shirabe/tests/downloader/file_downloader_test.rs
index 54afad4..4e9cbc6 100644
--- a/crates/shirabe/tests/downloader/file_downloader_test.rs
+++ b/crates/shirabe/tests/downloader/file_downloader_test.rs
@@ -1 +1,23 @@
 //! ref: composer/tests/Composer/Test/Downloader/FileDownloaderTest.php
+
+// These construct a FileDownloader with a mocked IO/HttpDownloader (curl_multi_init todo!())
+// and a mocked Cache/Package to drive download/checksum behaviour.
+macro_rules! stub {
+    ($name:ident) => {
+        #[test]
+        #[ignore = "mocks IO/HttpDownloader (curl_multi_init todo!()) and Cache/Package"]
+        fn $name() {
+            todo!()
+        }
+    };
+}
+
+stub!(test_download_for_package_without_dist_reference);
+stub!(test_download_to_existing_file);
+stub!(test_get_file_name);
+stub!(test_download_but_file_is_unsaved);
+stub!(test_download_with_custom_processed_url);
+stub!(test_download_with_custom_cache_key);
+stub!(test_cache_garbage_collection_is_called);
+stub!(test_download_file_with_invalid_checksum);
+stub!(test_downgrade_shows_appropriate_message);