| /* |
| * 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) {} |
| } |
| } |