1 files changed, 253 insertions, 0 deletions
diff --git a/harmony-tests/src/test/java/org/apache/harmony/tests/java/util/HashSetTest.java b/harmony-tests/src/test/java/org/apache/harmony/tests/java/util/HashSetTest.java
new file mode 100644
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@@ -0,0 +1,253 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.harmony.tests.java.util;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Set;
+import java.io.ObjectOutputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.Serializable;
+import java.lang.reflect.Method;
+import java.lang.reflect.InvocationTargetException;
+
+import org.apache.harmony.testframework.serialization.SerializationTest;
+
+public class HashSetTest extends junit.framework.TestCase {
+
+    HashSet hs;
+
+    Object[] objArray;
+
+    /**
+     * java.util.HashSet#HashSet()
+     */
+    public void test_Constructor() {
+        // Test for method java.util.HashSet()
+        HashSet hs2 = new HashSet();
+        assertEquals("Created incorrect HashSet", 0, hs2.size());
+    }
+
+    /**
+     * java.util.HashSet#HashSet(int)
+     */
+    public void test_ConstructorI() {
+        // Test for method java.util.HashSet(int)
+        HashSet hs2 = new HashSet(5);
+        assertEquals("Created incorrect HashSet", 0, hs2.size());
+        try {
+            new HashSet(-1);
+        } catch (IllegalArgumentException e) {
+            return;
+        }
+        fail(
+                "Failed to throw IllegalArgumentException for capacity < 0");
+    }
+
+    /**
+     * java.util.HashSet#HashSet(int, float)
+     */
+    public void test_ConstructorIF() {
+        // Test for method java.util.HashSet(int, float)
+        HashSet hs2 = new HashSet(5, (float) 0.5);
+        assertEquals("Created incorrect HashSet", 0, hs2.size());
+        try {
+            new HashSet(0, 0);
+        } catch (IllegalArgumentException e) {
+            return;
+        }
+        fail(
+                "Failed to throw IllegalArgumentException for initial load factor <= 0");
+    }
+
+    /**
+     * java.util.HashSet#HashSet(java.util.Collection)
+     */
+    public void test_ConstructorLjava_util_Collection() {
+        // Test for method java.util.HashSet(java.util.Collection)
+        HashSet hs2 = new HashSet(Arrays.asList(objArray));
+        for (int counter = 0; counter < objArray.length; counter++)
+            assertTrue("HashSet does not contain correct elements", hs
+                    .contains(objArray[counter]));
+        assertTrue("HashSet created from collection incorrect size",
+                hs2.size() == objArray.length);
+
+        try {
+            new HashSet(null);
+            fail("NullPointerException expected");
+        } catch (NullPointerException e) {
+            //expected
+        }
+    }
+
+    /**
+     * java.util.HashSet#add(java.lang.Object)
+     */
+    public void test_addLjava_lang_Object() {
+        // Test for method boolean java.util.HashSet.add(java.lang.Object)
+        int size = hs.size();
+        hs.add(new Integer(8));
+        assertTrue("Added element already contained by set", hs.size() == size);
+        hs.add(new Integer(-9));
+        assertTrue("Failed to increment set size after add",
+                hs.size() == size + 1);
+        assertTrue("Failed to add element to set", hs.contains(new Integer(-9)));
+    }
+
+    /**
+     * java.util.HashSet#clear()
+     */
+    public void test_clear() {
+        // Test for method void java.util.HashSet.clear()
+        Set orgSet = (Set) hs.clone();
+        hs.clear();
+        Iterator i = orgSet.iterator();
+        assertEquals("Returned non-zero size after clear", 0, hs.size());
+        while (i.hasNext())
+            assertTrue("Failed to clear set", !hs.contains(i.next()));
+    }
+
+    /**
+     * java.util.HashSet#clone()
+     */
+    public void test_clone() {
+        // Test for method java.lang.Object java.util.HashSet.clone()
+        HashSet hs2 = (HashSet) hs.clone();
+        assertTrue("clone returned an equivalent HashSet", hs != hs2);
+        assertTrue("clone did not return an equal HashSet", hs.equals(hs2));
+    }
+
+    /**
+     * java.util.HashSet#contains(java.lang.Object)
+     */
+    public void test_containsLjava_lang_Object() {
+        // Test for method boolean java.util.HashSet.contains(java.lang.Object)
+        assertTrue("Returned false for valid object", hs.contains(objArray[90]));
+        assertTrue("Returned true for invalid Object", !hs
+                .contains(new Object()));
+
+        HashSet s = new HashSet();
+        s.add(null);
+        assertTrue("Cannot handle null", s.contains(null));
+    }
+
+    /**
+     * java.util.HashSet#isEmpty()
+     */
+    public void test_isEmpty() {
+        // Test for method boolean java.util.HashSet.isEmpty()
+        assertTrue("Empty set returned false", new HashSet().isEmpty());
+        assertTrue("Non-empty set returned true", !hs.isEmpty());
+    }
+
+    /**
+     * java.util.HashSet#iterator()
+     */
+    public void test_iterator() {
+        // Test for method java.util.Iterator java.util.HashSet.iterator()
+        Iterator i = hs.iterator();
+        int x = 0;
+        while (i.hasNext()) {
+            assertTrue("Failed to iterate over all elements", hs.contains(i
+                    .next()));
+            ++x;
+        }
+        assertTrue("Returned iteration of incorrect size", hs.size() == x);
+
+        HashSet s = new HashSet();
+        s.add(null);
+        assertNull("Cannot handle null", s.iterator().next());
+    }
+
+    /**
+     * java.util.HashSet#remove(java.lang.Object)
+     */
+    public void test_removeLjava_lang_Object() {
+        // Test for method boolean java.util.HashSet.remove(java.lang.Object)
+        int size = hs.size();
+        hs.remove(new Integer(98));
+        assertTrue("Failed to remove element", !hs.contains(new Integer(98)));
+        assertTrue("Failed to decrement set size", hs.size() == size - 1);
+
+        HashSet s = new HashSet();
+        s.add(null);
+        assertTrue("Cannot handle null", s.remove(null));
+        assertFalse(hs.remove(new Integer(-98)));
+    }
+
+    /**
+     * java.util.HashSet#size()
+     */
+    public void test_size() {
+        // Test for method int java.util.HashSet.size()
+        assertTrue("Returned incorrect size", hs.size() == (objArray.length + 1));
+        hs.clear();
+        assertEquals("Cleared set returned non-zero size", 0, hs.size());
+    }
+
+    /**
+     * java.util.HashSet#SerializationTest
+     */
+    public void test_Serialization() throws Exception{
+        HashSet<String> hs = new HashSet<String>();
+        hs.add("hello");
+        hs.add("world");
+        SerializationTest.verifySelf(hs, comparator);
+        SerializationTest.verifyGolden(this, hs, comparator);
+    }
+
+    /**
+     * Sets up the fixture, for example, open a network connection. This method
+     * is called before a test is executed.
+     */
+    protected void setUp() {
+        objArray = new Object[1000];
+        for (int i = 0; i < objArray.length; i++) {
+            objArray[i] = new Integer(i);
+        }
+
+        hs = new HashSet();
+        for (int i = 0; i < objArray.length; i++) {
+            hs.add(objArray[i]);
+        }
+
+        hs.add(null);
+    }
+
+    /**
+     * Tears down the fixture, for example, close a network connection. This
+     * method is called after a test is executed.
+     */
+    protected void tearDown() {
+        hs = null;
+        objArray = null;
+    }
+
+    private static final SerializationTest.SerializableAssert comparator = new
+                                       SerializationTest.SerializableAssert() {
+        public void assertDeserialized(Serializable initial, Serializable deserialized) {
+            HashSet<String> initialHs = (HashSet<String>) initial;
+            HashSet<String> deseriaHs = (HashSet<String>) deserialized;
+            assertEquals("should be equal", initialHs.size(), deseriaHs.size());
+            assertEquals("should be equal", initialHs, deseriaHs);
+        }
+
+    };
+}