seq->o should seq-ify arg

Author: daveray

language-adaptors/rxjava-clojure/src/main/clojure/rx/lang/clojure/core.clj

@@ -285,8 +285,8 @@
 (defn ^Observable seq->o
   "Make an observable out of some seq-able thing. The rx equivalent of clojure.core/seq."
   [xs]
-  (if xs
-    (Observable/from ^Iterable xs)
+  (if-let [s (clojure.core/seq xs)]
+    (Observable/from ^Iterable s)
     (empty)))
 
 ;################################################################################

language-adaptors/rxjava-clojure/src/test/clojure/rx/lang/clojure/core_test.clj

@@ -166,6 +166,7 @@
 (deftest test-seq->o
   (is (= [] (b/into [] (rx/seq->o []))))
   (is (= [] (b/into [] (rx/seq->o nil))))
+  (is (= [\a \b \c] (b/into [] (rx/seq->o "abc"))))
   (is (= [0 1 2 3] (b/first (rx/into [] (rx/seq->o (range 4))))))
   (is (= #{0 1 2 3} (b/first (rx/into #{} (rx/seq->o (range 4))))))
   (is (= {:a 1 :b 2 :c 3} (b/first (rx/into {} (rx/seq->o [[:a 1] [:b 2] [:c 3]]))))))