diff options
Diffstat (limited to 'src/junit/com/jogamp/common/util/TestArrayHashMap01.java')
| -rw-r--r-- | src/junit/com/jogamp/common/util/TestArrayHashMap01.java | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/src/junit/com/jogamp/common/util/TestArrayHashMap01.java b/src/junit/com/jogamp/common/util/TestArrayHashMap01.java new file mode 100644 index 0000000..529612c --- /dev/null +++ b/src/junit/com/jogamp/common/util/TestArrayHashMap01.java @@ -0,0 +1,186 @@ +/** + * Copyright 2015 JogAmp Community. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, are + * permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this list of + * conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, this list + * of conditions and the following disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * The views and conclusions contained in the software and documentation are those of the + * authors and should not be interpreted as representing official policies, either expressed + * or implied, of JogAmp Community. + */ + +package com.jogamp.common.util; + +import java.util.*; +import java.io.IOException; + +import org.junit.Assert; +import org.junit.Test; + +import com.jogamp.junit.util.SingletonJunitCase; + +import org.junit.FixMethodOrder; +import org.junit.runners.MethodSorters; + +@FixMethodOrder(MethodSorters.NAME_ASCENDING) +public class TestArrayHashMap01 extends SingletonJunitCase { + + public static class Dummy { + int i1, i2, i3; + + public Dummy(final int i1, final int i2, final int i3) { + this.i1 = i1; + this.i2 = i2; + this.i3 = i3; + } + + public boolean equals(final Object o) { + if(o instanceof Dummy) { + final Dummy d = (Dummy)o; + return this.i1 == d.i1 && + this.i2 == d.i2 && + this.i3 == d.i3 ; + } + return false; + } + + public final int hashCode() { + // 31 * x == (x << 5) - x + int hash = 31 + i1; + hash = ((hash << 5) - hash) + i2; + hash = ((hash << 5) - hash) + i3; + return hash; + } + + public String toString() { + return "Dummy["+super.toString()+": "+i1+", "+i2+", "+i3+"]"; + } + } + + void populate(final Map<Integer, Dummy> l, final int start, final int len, + final int i2, final int i3, final int expectedPlusSize) { + final int oldSize = l.size(); + for(int pos = start+len-1; pos>=start; pos--) { + l.put(pos, new Dummy(pos, i2, i3)); + } + Assert.assertEquals(expectedPlusSize, l.size() - oldSize); + } + boolean checkOrder(final List<Dummy> l, final int startIdx, final int start, final int len) { + for(int i=0; i<len; i++) { + final Dummy d = l.get(startIdx+i); + final int i1 = start+len-1-i; + if( d.i1 != i1 ) { + return false; + } + } + return true; + } + + @Test + public void test01ArrayHashMapWithNullValue() { + testArrayHashMapImpl(true); + } + @Test + public void test02ArrayHashSetWithoutNullValue() { + testArrayHashMapImpl(false); + } + void testArrayHashMapImpl(final boolean supportNullValue) { + final ArrayHashMap<Integer, Dummy> l = + new ArrayHashMap<Integer, Dummy>(supportNullValue, + ArrayHashSet.DEFAULT_INITIAL_CAPACITY, + ArrayHashSet.DEFAULT_LOAD_FACTOR); + Assert.assertEquals(supportNullValue, l.supportsNullValue()); + final int p7_22_34_key, p7_22_34_idx; + final Dummy p7_22_34_orig; + final int p6_22_34_key, p6_22_34_idx; + final Dummy p6_22_34_orig; + { + populate(l, 10, 100, 22, 34, 100); // [109 .. 10] + Assert.assertTrue(checkOrder(l.getData(), 0, 10, 100)); + populate(l, 10, 100, 22, 34, 0); // [109 .. 10] + Assert.assertTrue(checkOrder(l.getData(), 0, 10, 100)); + populate(l, 6, 5, 22, 34, 4); // [ 9 .. 6], 10 already exists + Assert.assertTrue(checkOrder(l.getData(), 100, 6, 4)); + p7_22_34_idx = l.size() - 2; + p7_22_34_key = 7; + p7_22_34_orig = l.get(p7_22_34_key); + p6_22_34_idx = l.size() - 1; + p6_22_34_key = 6; + p6_22_34_orig = l.get(p6_22_34_key); + } + Assert.assertNotNull(p7_22_34_orig); + Assert.assertEquals(7, p7_22_34_orig.i1); + Assert.assertEquals(l.getData().get(p7_22_34_idx), p7_22_34_orig); + Assert.assertNotNull(p6_22_34_orig); + Assert.assertEquals(6, p6_22_34_orig.i1); + Assert.assertEquals(l.getData().get(p6_22_34_idx), p6_22_34_orig); + + final Dummy p7_22_34_other = new Dummy(7, 22, 34); + Assert.assertEquals(p7_22_34_other, p7_22_34_orig); + Assert.assertTrue(p7_22_34_other.hashCode() == p7_22_34_orig.hashCode()); + Assert.assertTrue(p7_22_34_other != p7_22_34_orig); // diff reference + final Dummy p6_22_34_other = new Dummy(6, 22, 34); + Assert.assertEquals(p6_22_34_other, p6_22_34_orig); + Assert.assertTrue(p6_22_34_other.hashCode() == p6_22_34_orig.hashCode()); + Assert.assertTrue(p6_22_34_other != p6_22_34_orig); // diff reference + + // fast identity .. + Dummy q = l.get(p6_22_34_key); + Assert.assertNotNull(q); + Assert.assertEquals(p6_22_34_other, q); + Assert.assertTrue(p6_22_34_other.hashCode() == q.hashCode()); + Assert.assertTrue(p6_22_34_other != q); // diff reference + Assert.assertTrue(p6_22_34_orig == q); // same reference + + Assert.assertTrue(l.containsValue(q)); + Assert.assertTrue(l.containsValue(p6_22_34_other)); // add equivalent + + q = l.put(p6_22_34_key, p6_22_34_other); // override w/ diff hash-obj + Assert.assertNotNull(q); + Assert.assertEquals(p6_22_34_other, q); + Assert.assertTrue(p6_22_34_other.hashCode() == q.hashCode()); + Assert.assertTrue(p6_22_34_other != q); // diff reference new != old (q) + Assert.assertTrue(p6_22_34_orig == q); // same reference orig == old (q) + Assert.assertTrue(checkOrder(l.getData(), 0, 10, 100)); + Assert.assertTrue(checkOrder(l.getData(), 100, 6, 4)); + + final Dummy p1_2_3 = new Dummy(1, 2, 3); // a new one .. + q = l.put(1, p1_2_3); // added test + Assert.assertNull(q); + + final Dummy pNull = null; + NullPointerException npe = null; + try { + q = l.put(0, pNull); + Assert.assertNull(q); + } catch (final NullPointerException _npe) { npe = _npe; } + if( l.supportsNullValue() ) { + Assert.assertNull(npe); + } else { + Assert.assertNotNull(npe); + } + } + + public static void main(final String args[]) throws IOException { + final String tstname = TestArrayHashMap01.class.getName(); + org.junit.runner.JUnitCore.main(tstname); + } + +} |