From cfa03c2a562fa0d324c5879c32c1fb2ef2783b86 Mon Sep 17 00:00:00 2001
From: Mairbek Khadikov <mkhadikov@gmail.com>
Date: Wed, 27 Feb 2013 20:29:00 +0200
Subject: [PATCH] Implemented single and singleOrDefault methods

---
 src/test/groovy/rx/lang/groovy/ObservableTests.groovy | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/test/groovy/rx/lang/groovy/ObservableTests.groovy b/src/test/groovy/rx/lang/groovy/ObservableTests.groovy
index 8d4d4b6..15dac20 100644
--- a/src/test/groovy/rx/lang/groovy/ObservableTests.groovy
+++ b/src/test/groovy/rx/lang/groovy/ObservableTests.groovy
@@ -233,6 +233,17 @@ def class ObservableTests {
         }
     }
 
+    @Test
+    public void testSingle1() {
+        def s = Observable.toObservable("one").single({ x -> x.length() == 3})
+        assertEquals("one", s)
+    }
+
+    @Test(expected = IllegalStateException.class)
+    public void testSingle2() {
+        Observable.toObservable("one", "two").single({ x -> x.length() == 3})
+    }
+
     def class AsyncObservable implements Func1<Observer<Integer>, Subscription> {
 
         public Subscription call(final Observer<Integer> observer) {