Add unit test for JService annotation

jackdaw-sample/src/test/kotlin/com/github/vbauer/jackdaw/JServiceTest.kt

@@ -0,0 +1,30 @@
+package com.github.vbauer.jackdaw
+
+import com.github.vbauer.jackdaw.bean.AbstractTypeA
+import com.github.vbauer.jackdaw.bean.AbstractTypeB
+import com.github.vbauer.jackdaw.bean.BaseType
+import com.google.common.collect.Lists
+import org.hamcrest.Matchers.hasItem
+import org.hamcrest.Matchers.hasSize
+import org.junit.Assert.assertThat
+import org.junit.Test
+import java.util.*
+
+/**
+ * @author Vladislav Bauer
+ */
+
+class JServiceTest {
+
+    @Test
+    fun testBaseType() {
+        val loader = ServiceLoader.load(BaseType::class.java)
+        val beans = Lists.newArrayList<BaseType>(loader)
+        assertThat(beans, hasSize(2))
+
+        val classes = beans.map { b -> b.javaClass }
+        assertThat(classes, hasItem(AbstractTypeA::class.java))
+        assertThat(classes, hasItem(AbstractTypeB::class.java))
+    }
+
+}