1 files changed, 123 insertions, 0 deletions
diff --git a/jsr166-tests/src/test/java/jsr166/EntryTest.java b/jsr166-tests/src/test/java/jsr166/EntryTest.java
new file mode 100644
index 0000000000..4387a53398
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+++ b/jsr166-tests/src/test/java/jsr166/EntryTest.java
@@ -0,0 +1,123 @@
+/*
+ * Written by Doug Lea with assistance from members of JCP JSR-166
+ * Expert Group and released to the public domain, as explained at
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+package jsr166;
+
+import junit.framework.*;
+import java.util.*;
+
+public class EntryTest extends JSR166TestCase {
+
+    static final String k1 = "1";
+    static final String v1 = "a";
+    static final String k2 = "2";
+    static final String v2 = "b";
+
+    /**
+     * A new SimpleEntry(k, v) holds k, v.
+     */
+    public void testConstructor1() {
+        Map.Entry e = new AbstractMap.SimpleEntry(k1, v1);
+        assertEquals(k1, e.getKey());
+        assertEquals(v1, e.getValue());
+    }
+
+    /**
+     * A new SimpleImmutableEntry(k, v) holds k, v.
+     */
+    public void testConstructor2() {
+        Map.Entry s = new AbstractMap.SimpleImmutableEntry(k1, v1);
+        assertEquals(k1, s.getKey());
+        assertEquals(v1, s.getValue());
+    }
+
+    /**
+     * A new SimpleEntry(entry(k, v)) holds k, v.
+     */
+    public void testConstructor3() {
+        Map.Entry e2 = new AbstractMap.SimpleEntry(k1, v1);
+        Map.Entry e = new AbstractMap.SimpleEntry(e2);
+        assertEquals(k1, e.getKey());
+        assertEquals(v1, e.getValue());
+    }
+
+    /**
+     * A new SimpleImmutableEntry(entry(k, v)) holds k, v.
+     */
+    public void testConstructor4() {
+        Map.Entry s2 = new AbstractMap.SimpleImmutableEntry(k1, v1);
+        Map.Entry s = new AbstractMap.SimpleImmutableEntry(s2);
+        assertEquals(k1, s.getKey());
+        assertEquals(v1, s.getValue());
+    }
+
+    /**
+     * Entries with same key-value pairs are equal and have same
+     * hashcodes
+     */
+    public void testEquals() {
+        Map.Entry e2 = new AbstractMap.SimpleEntry(k1, v1);
+        Map.Entry e = new AbstractMap.SimpleEntry(e2);
+        Map.Entry s2 = new AbstractMap.SimpleImmutableEntry(k1, v1);
+        Map.Entry s = new AbstractMap.SimpleImmutableEntry(s2);
+        assertEquals(e2, e);
+        assertEquals(e2.hashCode(), e.hashCode());
+        assertEquals(s2, s);
+        assertEquals(s2.hashCode(), s.hashCode());
+        assertEquals(e2, s2);
+        assertEquals(e2.hashCode(), s2.hashCode());
+        assertEquals(e, s);
+        assertEquals(e.hashCode(), s.hashCode());
+    }
+
+    /**
+     * Entries with different key-value pairs are not equal
+     */
+    public void testNotEquals() {
+        Map.Entry e2 = new AbstractMap.SimpleEntry(k1, v1);
+        Map.Entry e = new AbstractMap.SimpleEntry(k2, v1);
+        assertFalse(e2.equals(e));
+        e = new AbstractMap.SimpleEntry(k1, v2);
+        assertFalse(e2.equals(e));
+        e = new AbstractMap.SimpleEntry(k2, v2);
+        assertFalse(e2.equals(e));
+
+        Map.Entry s2 = new AbstractMap.SimpleImmutableEntry(k1, v1);
+        Map.Entry s = new AbstractMap.SimpleImmutableEntry(k2, v1);
+        assertFalse(s2.equals(s));
+        s = new AbstractMap.SimpleImmutableEntry(k1, v2);
+        assertFalse(s2.equals(s));
+        s = new AbstractMap.SimpleImmutableEntry(k2, v2);
+        assertFalse(s2.equals(s));
+    }
+
+    /**
+     * getValue returns last setValue for SimpleEntry
+     */
+    public void testSetValue1() {
+        Map.Entry e2 = new AbstractMap.SimpleEntry(k1, v1);
+        Map.Entry e = new AbstractMap.SimpleEntry(e2);
+        assertEquals(k1, e.getKey());
+        assertEquals(v1, e.getValue());
+        e.setValue(k2);
+        assertEquals(k2, e.getValue());
+        assertFalse(e2.equals(e));
+    }
+
+    /**
+     * setValue for SimpleImmutableEntry throws UnsupportedOperationException
+     */
+    public void testSetValue2() {
+        Map.Entry s2 = new AbstractMap.SimpleImmutableEntry(k1, v1);
+        Map.Entry s = new AbstractMap.SimpleImmutableEntry(s2);
+        assertEquals(k1, s.getKey());
+        assertEquals(v1, s.getValue());
+        try {
+            s.setValue(k2);
+            shouldThrow();
+        } catch (UnsupportedOperationException success) {}
+    }
+}