1 files changed, 55 insertions, 0 deletions
diff --git a/yolean/src/test/java/com/yahoo/yolean/chain/ChainTest.java b/yolean/src/test/java/com/yahoo/yolean/chain/ChainTest.java
new file mode 100644
index 00000000000..e8a8f9309b0
--- /dev/null
+++ b/yolean/src/test/java/com/yahoo/yolean/chain/ChainTest.java
@@ -0,0 +1,55 @@
+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.yolean.chain;
+
+import org.junit.Test;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.CoreMatchers.not;
+import static org.junit.Assert.assertThat;
+
+/**
+ * @author tonytv
+ */
+public class ChainTest {
+
+    public static class Filter {
+
+    }
+
+    public static class OtherFilter extends Filter {
+
+    }
+
+    @Test
+    public void empty_chain_toString() {
+        Chain<Filter> c = new Chain<>("myChain");
+        assertThat(c.toString(), is("chain 'myChain'{}"));
+    }
+
+    @Test
+    public void singleton_chain_toString() {
+        Chain<Filter> c = new Chain<>("myChain", new Filter());
+        assertThat(c.toString(), is("chain 'myChain'{ Filter }"));
+    }
+
+    @Test
+    public void chain_toString() {
+        Chain<Filter> c = new Chain<>("myChain", new Filter(), new Filter(), new OtherFilter());
+        assertThat(c.toString(), is("chain 'myChain'{ Filter -> Filter -> OtherFilter }"));
+    }
+
+    @Test
+    public void non_equal_due_to_different_components() {
+        assertThat(new Chain<>("a", new Filter()), is(not(new Chain<>("a", new Filter()))));
+    }
+
+    @Test
+    public void non_equal_due_to_different_size_comopnents() {
+        assertThat(new Chain<>("a", new Filter()), is(not(new Chain<Filter>("a"))));
+    }
+
+    @Test
+    public void hashCode_equals() {
+        assertThat(new Chain<>("a").hashCode(), is(new Chain<Filter>("a").hashCode()));
+    }
+}