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/* |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
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* Expert Group and released to the public domain, as explained at |
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* http://creativecommons.org/publicdomain/zero/1.0/ |
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*/ |
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|
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import java.util.AbstractMap; |
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import java.util.Map; |
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|
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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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|
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public class EntryTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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main(suite(), args); |
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} |
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public static Test suite() { |
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return new TestSuite(EntryTest.class); |
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} |
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|
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static final String k1 = "1"; |
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static final String v1 = "a"; |
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static final String k2 = "2"; |
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static final String v2 = "b"; |
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|
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/** |
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* A new SimpleEntry(k, v) holds k, v. |
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*/ |
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public void testConstructor1() { |
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Map.Entry e = new AbstractMap.SimpleEntry(k1, v1); |
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assertEquals(k1, e.getKey()); |
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assertEquals(v1, e.getValue()); |
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} |
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|
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/** |
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* A new SimpleImmutableEntry(k, v) holds k, v. |
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*/ |
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public void testConstructor2() { |
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Map.Entry s = new AbstractMap.SimpleImmutableEntry(k1, v1); |
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assertEquals(k1, s.getKey()); |
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assertEquals(v1, s.getValue()); |
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} |
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|
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/** |
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* A new SimpleEntry(entry(k, v)) holds k, v. |
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*/ |
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public void testConstructor3() { |
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Map.Entry e2 = new AbstractMap.SimpleEntry(k1, v1); |
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Map.Entry e = new AbstractMap.SimpleEntry(e2); |
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assertEquals(k1, e.getKey()); |
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assertEquals(v1, e.getValue()); |
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} |
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|
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/** |
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* A new SimpleImmutableEntry(entry(k, v)) holds k, v. |
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*/ |
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public void testConstructor4() { |
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Map.Entry s2 = new AbstractMap.SimpleImmutableEntry(k1, v1); |
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Map.Entry s = new AbstractMap.SimpleImmutableEntry(s2); |
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assertEquals(k1, s.getKey()); |
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assertEquals(v1, s.getValue()); |
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} |
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|
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/** |
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* Entries with same key-value pairs are equal and have same |
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* hashcodes |
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*/ |
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public void testEquals() { |
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Map.Entry e2 = new AbstractMap.SimpleEntry(k1, v1); |
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Map.Entry e = new AbstractMap.SimpleEntry(e2); |
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Map.Entry s2 = new AbstractMap.SimpleImmutableEntry(k1, v1); |
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Map.Entry s = new AbstractMap.SimpleImmutableEntry(s2); |
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assertEquals(e2, e); |
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assertEquals(e2.hashCode(), e.hashCode()); |
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assertEquals(s2, s); |
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assertEquals(s2.hashCode(), s.hashCode()); |
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assertEquals(e2, s2); |
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assertEquals(e2.hashCode(), s2.hashCode()); |
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assertEquals(e, s); |
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assertEquals(e.hashCode(), s.hashCode()); |
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} |
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|
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/** |
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* Entries with different key-value pairs are not equal |
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*/ |
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public void testNotEquals() { |
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Map.Entry e2 = new AbstractMap.SimpleEntry(k1, v1); |
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Map.Entry e = new AbstractMap.SimpleEntry(k2, v1); |
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assertFalse(e2.equals(e)); |
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e = new AbstractMap.SimpleEntry(k1, v2); |
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assertFalse(e2.equals(e)); |
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e = new AbstractMap.SimpleEntry(k2, v2); |
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assertFalse(e2.equals(e)); |
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|
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Map.Entry s2 = new AbstractMap.SimpleImmutableEntry(k1, v1); |
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Map.Entry s = new AbstractMap.SimpleImmutableEntry(k2, v1); |
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assertFalse(s2.equals(s)); |
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s = new AbstractMap.SimpleImmutableEntry(k1, v2); |
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assertFalse(s2.equals(s)); |
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s = new AbstractMap.SimpleImmutableEntry(k2, v2); |
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assertFalse(s2.equals(s)); |
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} |
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|
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/** |
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* getValue returns last setValue for SimpleEntry |
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*/ |
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public void testSetValue1() { |
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Map.Entry e2 = new AbstractMap.SimpleEntry(k1, v1); |
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Map.Entry e = new AbstractMap.SimpleEntry(e2); |
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assertEquals(k1, e.getKey()); |
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assertEquals(v1, e.getValue()); |
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e.setValue(k2); |
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assertEquals(k2, e.getValue()); |
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assertFalse(e2.equals(e)); |
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} |
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|
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/** |
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* setValue for SimpleImmutableEntry throws UnsupportedOperationException |
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*/ |
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public void testSetValue2() { |
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Map.Entry s2 = new AbstractMap.SimpleImmutableEntry(k1, v1); |
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Map.Entry s = new AbstractMap.SimpleImmutableEntry(s2); |
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assertEquals(k1, s.getKey()); |
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assertEquals(v1, s.getValue()); |
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try { |
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s.setValue(k2); |
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shouldThrow(); |
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} catch (UnsupportedOperationException success) {} |
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} |
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} |
