updated gradle to 1.0

updated all builds to latest library versions
renamed specs to end in 'Spec' (easiest solution until we have a plugin for Maven 3.0)

src/test/groovy/PublisherSubscriberSpec.groovy

@@ -0,0 +1,64 @@
+/*
+ * Copyright 2009 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import spock.lang.Specification
+
+class Publisher {
+  def subscribers = []
+
+  def send(event) {
+    subscribers.each {
+      try {
+        it.receive(event)
+      } catch (Exception e) {}
+    }
+  }
+}
+
+interface Subscriber {
+  def receive(event)
+}
+
+class PublisherSpec extends Specification {
+  def pub = new Publisher()
+  def sub1 = Mock(Subscriber)
+  def sub2 = Mock(Subscriber)
+
+  def setup() {
+    pub.subscribers << sub1 << sub2
+  }
+
+  def "delivers events to all subscribers"() {
+    when:
+    pub.send("event")
+
+    then:
+    1 * sub1.receive("event")
+    1 * sub2.receive("event")
+  }
+
+  def "can cope with misbehaving subscribers"() {
+    sub1.receive(_) >> { throw new Exception() }
+
+    when:
+    pub.send("event1")
+    pub.send("event2")
+
+    then:
+    1 * sub2.receive("event1")
+    1 * sub2.receive("event2")
+  }
+}