Fixed bug and written test for initialize()

Author: Kimundi

src/lib.rs

@@ -132,7 +132,7 @@ macro_rules! __lazy_static_internal {
         }
         impl $crate::LazyStatic for $N {
             fn initialize(lazy: &Self) {
-                let _ = &*lazy;
+                let _ = &**lazy;
             }
         }
         __lazy_static_internal!($($t)*);

tests/test.rs

@@ -127,3 +127,23 @@ lazy_static! {
 fn item_name_shadowing() {
     assert_eq!(*ITEM_NAME_TEST, X);
 }
+
+use std::sync::atomic::AtomicBool;
+use std::sync::atomic::ATOMIC_BOOL_INIT;
+use std::sync::atomic::Ordering::SeqCst;
+
+static PRE_INIT_FLAG: AtomicBool = ATOMIC_BOOL_INIT;
+
+lazy_static! {
+    static ref PRE_INIT: () = {
+        PRE_INIT_FLAG.store(true, SeqCst);
+        ()
+    };
+}
+
+#[test]
+fn pre_init() {
+    assert_eq!(PRE_INIT_FLAG.load(SeqCst), false);
+    lazy_static::initialize(&PRE_INIT);
+    assert_eq!(PRE_INIT_FLAG.load(SeqCst), true);
+}