test(tests): port setUp/tearDown as set_up/tear_down with TearDown

Port PHP setUp/tearDown across the ported integration tests using
same-named set_up()/tear_down() functions and a TearDown struct whose
Drop runs tear_down(). Fixture-init setUp returns its fixtures;
tmpdir-style setUp/tearDown carry state in TearDown fields. Parts that
depend on unported infrastructure (PHPUnit mocks, Config::merge, the PHP
error handler) stay todo!() and are only wired into ignored stubs to
avoid breaking live tests.

Also fix shirabe-php-shim putenv to handle the no-'=' form (PHP unsets
the variable), which Platform::clear_env relies on for the env-clearing
tearDowns.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/crates/shirabe/tests/event_dispatcher/event_dispatcher_test.rs b/crates/shirabe/tests/event_dispatcher/event_dispatcher_test.rs
index 86e33f2..3d9ee0a 100644
--- a/crates/shirabe/tests/event_dispatcher/event_dispatcher_test.rs
+++ b/crates/shirabe/tests/event_dispatcher/event_dispatcher_test.rs
@@ -1,5 +1,19 @@
 //! ref: composer/tests/Composer/Test/EventDispatcher/EventDispatcherTest.php
 
+use shirabe::util::platform::Platform;
+
+fn tear_down() {
+    Platform::clear_env("COMPOSER_SKIP_SCRIPTS");
+}
+
+struct TearDown;
+
+impl Drop for TearDown {
+    fn drop(&mut self) {
+        tear_down();
+    }
+}
+
 // These build an EventDispatcher with a mocked Composer/IO/ProcessExecutor and run script
 // listeners (executing CLI/PHP callbacks); mocking and the script-execution machinery are
 // not available here.
@@ -8,6 +22,7 @@ macro_rules! stub {
         #[test]
         #[ignore = "mocks Composer/IO/ProcessExecutor and executes script listeners; not ported"]
         fn $name() {
+            let _tear_down = TearDown;
             todo!()
         }
     };