From 3af0ea5c4fc4bb3bcb19bff7681cf63867b8b0dc Mon Sep 17 00:00:00 2001
From: Fabian Becker <halfdan@xnorfz.de>
Date: Thu, 17 Dec 2015 20:49:28 +0100
Subject: [PATCH] Add tests for Pair

refs #53
---
 src/main/java/eva2/tools/Pair.java        | 21 ++----
 src/main/java/eva2/tools/math/BayNet.java |  4 +-
 src/test/java/eva2/tools/PairTest.java    | 79 +++++++++++++++++++++++
 3 files changed, 84 insertions(+), 20 deletions(-)
 create mode 100644 src/test/java/eva2/tools/PairTest.java

diff --git a/src/main/java/eva2/tools/Pair.java b/src/main/java/eva2/tools/Pair.java
index 15006514..ec807335 100644
--- a/src/main/java/eva2/tools/Pair.java
+++ b/src/main/java/eva2/tools/Pair.java
@@ -1,5 +1,7 @@
 package eva2.tools;
 
+import eva2.util.annotation.Parameter;
+
 import java.io.Serializable;
 
 /**
@@ -11,7 +13,6 @@ public class Pair<S, T> implements Serializable {
     /**
      *
      */
-    private static final long serialVersionUID = -3620465393975181451L;
     public S head;
     public T tail;
 
@@ -24,9 +25,6 @@ public class Pair<S, T> implements Serializable {
         this.tail = tail;
     }
 
-    public Pair() {
-    }
-
     /**
      * @return
      */
@@ -75,10 +73,6 @@ public class Pair<S, T> implements Serializable {
         return head;
     }
 
-    public String headTipText() {
-        return "First pair entry";
-    }
-
     /**
      * @return
      */
@@ -90,15 +84,6 @@ public class Pair<S, T> implements Serializable {
         return tail;
     }
 
-    public String tailTipText() {
-        return "Last pair entry";
-    }
-
-    /*
-     * (non-Javadoc)
-     *
-     * @see java.lang.Object#toString()
-     */
     @Override
     public String toString() {
         return "(" + head.toString() + "," + tail.toString() + ")";
@@ -111,6 +96,7 @@ public class Pair<S, T> implements Serializable {
     /**
      * @param head
      */
+    @Parameter(description="First pair entry")
     public void setHead(S head) {
         this.head = head;
     }
@@ -118,6 +104,7 @@ public class Pair<S, T> implements Serializable {
     /**
      * @param tail
      */
+    @Parameter(description = "Last pair entry")
     public void setTail(T tail) {
         this.tail = tail;
     }
diff --git a/src/main/java/eva2/tools/math/BayNet.java b/src/main/java/eva2/tools/math/BayNet.java
index 34c75c38..06392b11 100644
--- a/src/main/java/eva2/tools/math/BayNet.java
+++ b/src/main/java/eva2/tools/math/BayNet.java
@@ -1052,9 +1052,7 @@ public final class BayNet {
             line = line + ": " + pTable[j];
             result += line;
         }
-        Pair<Integer, String> p = new Pair<>();
-        p.setHead(length);
-        p.setTail(result);
+        Pair<Integer, String> p = new Pair<>(length, result);
         return p;
     }
 
diff --git a/src/test/java/eva2/tools/PairTest.java b/src/test/java/eva2/tools/PairTest.java
new file mode 100644
index 00000000..80a92950
--- /dev/null
+++ b/src/test/java/eva2/tools/PairTest.java
@@ -0,0 +1,79 @@
+package eva2.tools;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class PairTest {
+    private Pair<String, Double> p;
+
+    @Before
+    public void setUp() {
+        p = new Pair<>("Head", 12.0);
+    }
+
+    @Test
+    public void testCar() throws Exception {
+        assertEquals("Head", p.car());
+    }
+
+    @Test
+    public void testCdr() throws Exception {
+        assertEquals(12.0, p.cdr(), 0.0);
+    }
+
+    @Test
+    public void testClone() throws Exception {
+        //assertEquals(p, p.clone());
+    }
+
+    @Test
+    public void testHashCode() throws Exception {
+        assertNotNull(p.hashCode());
+    }
+
+    @Test
+    public void testHead() throws Exception {
+        assertEquals("Head", p.head());
+    }
+
+    @Test
+    public void testGetHead() throws Exception {
+        assertEquals("Head", p.getHead());
+    }
+
+    @Test
+    public void testTail() throws Exception {
+        assertEquals(12.0, p.tail(), 0.0);
+    }
+
+    @Test
+    public void testGetTail() throws Exception {
+        assertEquals(12.0, p.getTail(), 0.0);
+    }
+
+    @Test
+    public void testToString() throws Exception {
+        assertEquals("(Head,12.0)", p.toString());
+    }
+
+    @Test
+    public void testGetName() throws Exception {
+        assertEquals("(Head,12.0)", p.toString());
+    }
+
+    @Test
+    public void testSetHead() throws Exception {
+        String newHead = "newHead";
+        p.setHead(newHead);
+        assertEquals(newHead, p.getHead());
+    }
+
+    @Test
+    public void testSetTail() throws Exception {
+        Double newTail = 42.0;
+        p.setTail(newTail);
+        assertEquals(newTail, p.getTail());
+    }
+}
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