refactor(tests-async): unify duplicated tokio runtime bridges

11 downloader/installer integration-test files each redefined an
identical current_thread `run()` helper to block on async code. Extract
one shared multi_thread Runtime into tests/common/async_runtime.rs so
concurrent #[test] threads can all block_on it, matching the direction
item 7 (top-level Runtime) will take in production code.

1 files changed, 1 insertions, 7 deletions

diff --git a/crates/shirabe/tests/installer/library_installer_test.rs b/crates/shirabe/tests/installer/library_installer_test.rs
index 72272a07..f2a94cbf 100644
--- a/crates/shirabe/tests/installer/library_installer_test.rs
+++ b/crates/shirabe/tests/installer/library_installer_test.rs
@@ -1,5 +1,6 @@
 //! ref: composer/tests/Composer/Test/Installer/LibraryInstallerTest.php
 
+use crate::async_runtime::run;
 use crate::test_case::get_package;
 use indexmap::IndexMap;
 use shirabe::composer::{
@@ -87,13 +88,6 @@ mockall::mock! {
     }
 }
 
-fn run<F: std::future::Future>(future: F) -> F::Output {
-    tokio::runtime::Builder::new_current_thread()
-        .build()
-        .unwrap()
-        .block_on(future)
-}
-
 /// Mirror of setUp(): builds the Composer/Config over temp root/vendor/bin dirs plus a NullIO and a
 /// DownloadManager mock. `composer_full` keeps the inner Rc alive for the duration of the test since
 /// LibraryInstaller only holds a weak handle, and lets tests swap in a configured DownloadManager