remove hardcoded filename in test event generator

pkgs/ifwait/test-ifwait.fnl

@@ -1,15 +1,21 @@
 (local fennel (require :fennel))
 
-(fn event-fn [groups]
-  (let [data (with-open [e (io.open "events-fixture" "r")] (e:read "*a"))
+(fn event-generator [events]
+  (coroutine.wrap
+   (fn []
+     (each [_ e (ipairs events)] (coroutine.yield e)))))
+
+(fn file-events [path]
+  (let [data (with-open [e (io.open path "r")] (e:read "*a"))
         parse (fennel.parser data)]
-    (coroutine.wrap
-     (fn []
-       (each [ok ast parse]
-         (if ok (coroutine.yield ast)))))))
+    (icollect [_ ast parse]
+      ast)))
+
 
 (set _G.arg (doto  ["-v" "dummy0" "up"] (tset 0 "test")))
 
 (local ifwait (require :ifwait))
 
-(ifwait.run event-fn)
+
+
+(ifwait.run #(event-generator (file-events "events-fixture")))