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, 9 insertions, 0 deletions

diff --git a/crates/shirabe/tests/command/init_command_test.rs b/crates/shirabe/tests/command/init_command_test.rs
index 69d721b..e7cda3e 100644
--- a/crates/shirabe/tests/command/init_command_test.rs
+++ b/crates/shirabe/tests/command/init_command_test.rs
@@ -3,11 +3,20 @@
 // The author/namespace/git-config helpers are protected methods exercised via reflection
 // in PHP; the run cases need the ApplicationTester. Neither is available here.
 
+use shirabe_php_shim::server_set;
+
+fn set_up() {
+    server_set("COMPOSER_DEFAULT_AUTHOR", "John Smith".to_string());
+    server_set("COMPOSER_DEFAULT_EMAIL", "john@example.com".to_string());
+}
+
 macro_rules! stub {
     ($name:ident) => {
         #[test]
         #[ignore = "needs the ApplicationTester harness or reflection into protected InitCommand helpers"]
         fn $name() {
+            set_up();
+
             todo!()
         }
     };