public void TestConstructorMap()
{
Map <Object, Object> myMap = new LinkedHashMap <Object, Object>();
for (int counter = 0; counter < hmSize; counter++)
{
myMap.Put(objArray2[counter], objArray[counter]);
}
HashMap <Object, Object> hm2 = new HashMap <Object, Object>(myMap);
for (int counter = 0; counter < hmSize; counter++)
{
Assert.IsTrue(hm.Get(objArray2[counter]) == hm2.Get(objArray2[counter]), "Assert.Failed to construct correct HashMap");
}
try
{
Map <Object, Object> mockMap = new MockMap();
hm = new HashMap <Object, Object>(mockMap);
Assert.Fail("Should throw NullReferenceException");
}
catch (NullReferenceException)
{
//empty
}
HashMap <Object, Object> map = new HashMap <Object, Object>();
map.Put("a", "a");
SubMap <Object, Object> map2 = new SubMap <Object, Object>(map);
Assert.IsTrue(map2.ContainsKey("a"));
Assert.IsTrue(map2.ContainsValue("a"));
}
public void TestRemove()
{
int Size = hm.Size();
Object y = 9;
Object x = hm.Remove(y.ToString());
Assert.IsTrue(x.Equals(9), "Remove returned incorrect value");
Assert.IsNull(hm.Get(9), "Assert.Failed to Remove given key");
Assert.IsTrue(hm.Size() == (Size - 1), "Assert.Failed to decrement Size");
Assert.IsNull(hm.Remove("LCLCLC"), "Remove of non-existent key returned non-null");
HashMap <Object, Object> m = new HashMap <Object, Object>();
m.Put(null, "test");
Assert.IsNull(m.Remove(0), "Assert.Failed with same hash as null");
Assert.AreEqual("test", m.Remove(null), "Assert.Failed with null key");
HashMap <Object, Object> map = new HashMap <Object, Object>();
for (int i = 0; i < 32768; i++)
{
map.Put(i, "const");
}
Object[] values = new Object[32768];
for (int i = 0; i < 32768; i++)
{
values[i] = new Object();
map.Put(i, values[i]);
}
for (int i = 32767; i >= 0; i--)
{
Assert.AreEqual(values[i], map.Remove(i), "Assert.Failed to Remove same value");
}
// Ensure keys with identical hashcode are Removed properly
map = new HashMap <Object, Object>();
for (int i = -32767; i < 32768; i++)
{
map.Put(i, "foobar");
}
// Remove non equal object with same hashcode
Assert.IsNull(map.Remove(new MyKey()));
Assert.AreEqual("foobar", map.Get(0));
map.Remove(0);
Assert.IsNull(map.Get(0));
}
public void TestClone()
{
HashMap <Object, Object> hm2 = (HashMap <Object, Object>)hm.Clone();
Assert.IsTrue(hm2 != hm, "Clone answered equivalent HashMap");
for (int counter = 0; counter < hmSize; counter++)
{
Assert.IsTrue(hm.Get(objArray2[counter]) == hm2.Get(objArray2[counter]), "Clone answered unequal HashMap");
}
HashMap <Object, Object> map = new HashMap <Object, Object>();
map.Put("key", "value");
// get the KeySet() and Values() on the original Map
Set <Object> keys = map.KeySet();
Collection <Object> values = map.Values();
Assert.AreEqual("value", values.Iterator().Next(), "Values() does not work");
Assert.AreEqual("key", keys.Iterator().Next(), "KeySet() does not work");
AbstractMap <Object, Object> map2 = (AbstractMap <Object, Object>)map.Clone();
map2.Put("key", "value2");
Collection <Object> values2 = map2.Values();
Assert.IsTrue(values2 != values, "Values() is identical");
// Values() and KeySet() on the Cloned() map should be different
Assert.AreEqual("value2", values2.Iterator().Next(), "Values() was not Cloned");
map2.Clear();
map2.Put("key2", "value3");
Set <Object> key2 = map2.KeySet();
Assert.IsTrue(key2 != keys, "KeySet() is identical");
Assert.AreEqual("key2", key2.Iterator().Next(), "KeySet() was not Cloned");
HashMap <Object, Object> hashmap = new HashMap <Object, Object>();
MockClonable mock = new MockClonable(1);
hashmap.Put(1, mock);
Assert.AreEqual(1, ((MockClonable)hashmap.Get(1)).i);
HashMap <Object, Object> hm3 = (HashMap <Object, Object>)hashmap.Clone();
Assert.AreEqual(1, ((MockClonable)hm3.Get(1)).i);
mock.i = 0;
Assert.AreEqual(0, ((MockClonable)hashmap.Get(1)).i);
Assert.AreEqual(0, ((MockClonable)hm3.Get(1)).i);
}
public void TestConstructorIF()
{
HashMap <Object, Object> hm2 = new HashMap <Object, Object>(5, (float)0.5);
Assert.AreEqual(0, hm2.Size(), "Created incorrect HashMap");
try
{
new HashMap <Object, Object>(0, 0);
}
catch (ArgumentException)
{
return;
}
Assert.Fail("Assert.Failed to throw ArgumentException for initial load factor <= 0");
HashMap <Object, Object> empty = new HashMap <Object, Object>(0, 0.75f);
Assert.IsNull(empty.Get("nothing"), "Empty hashtable access");
empty.Put("something", "here");
Assert.IsTrue(empty.Get("something").Equals("here"), "cannot get element");
}
public void TestGet()
{
Assert.IsNull(hm.Get("T"), "Get returned non-null for non existent key");
hm.Put("T", "HELLO");
Assert.AreEqual("HELLO", hm.Get("T"), "Get returned incorrect value for existing key");
HashMap <Object, Object> m = new HashMap <Object, Object>();
m.Put(null, "test");
Assert.AreEqual("test", m.Get(null), "Assert.Failed with null key");
Assert.IsNull(m.Get(0), "Assert.Failed with missing key matching null hash");
ReusableKey k = new ReusableKey();
HashMap <Object, Object> map = new HashMap <Object, Object>();
k.Key = 1;
map.Put(k, "value1");
k.Key = 18;
Assert.IsNull(map.Get(k));
k.Key = 17;
Assert.IsNull(map.Get(k));
}
public void TestPutAll()
{
HashMap <Object, Object> hm2 = new HashMap <Object, Object>();
hm2.PutAll(hm);
for (int i = 0; i < 1000; i++)
{
Assert.IsTrue(hm2.Get(i.ToString()).Equals((i)), "Assert.Failed to Clear all elements");
}
Map <Object, Object> mockMap = new MockMap();
hm2 = new HashMap <Object, Object>();
hm2.PutAll(mockMap);
Assert.AreEqual(0, hm2.Size(), "Size should be 0");
}
public void TestClear()
{
hm.Clear();
Assert.AreEqual(0, hm.Size(), "Clear Assert.Failed to reset Size");
for (int i = 0; i < hmSize; i++)
{
Assert.IsNull(hm.Get(objArray2[i]), "Assert.Failed to Clear all elements");
}
// Check Clear on a large loaded map of Int32 keys
HashMap <Object, String> map = new HashMap <Object, String>();
for (int i = -32767; i < 32768; i++)
{
map.Put(i, "foobar");
}
map.Clear();
Assert.AreEqual(0, hm.Size(), "Assert.Failed to reset Size on large integer map");
for (int i = -32767; i < 32768; i++)
{
Assert.IsNull(map.Get(i), "Assert.Failed to Clear integer map values");
}
}
public void TestPut2()
{
hm.Put("KEY", "VALUE");
Assert.AreEqual("VALUE", hm.Get("KEY"), "Assert.Failed to install key/value pair");
HashMap <Object, Object> m = new HashMap <Object, Object>();
m.Put(0, "short");
m.Put(null, "test");
m.Put(0, "int");
Assert.AreEqual("int", m.Get(0), "Assert.Failed adding to bucket containing null");
Assert.AreEqual("int", m.Get(0), "Assert.Failed adding to bucket containing null2");
// Check my actual key instance is returned
HashMap <Object, String> map = new HashMap <Object, String>();
for (int i = -32767; i < 32768; i++)
{
map.Put(i, "foobar");
}
Object myKey = 0;
// Put a new value at the old key position
map.Put(myKey, "myValue");
Assert.IsTrue(map.ContainsKey(myKey));
Assert.AreEqual("myValue", map.Get(myKey));
bool found = false;
for (Iterator <Object> itr = map.KeySet().Iterator(); itr.HasNext;)
{
Object key = itr.Next();
if (found = key == myKey)
{
break;
}
}
Assert.IsFalse(found, "Should not find new key instance in hashmap");
// Add a new key instance and check it is returned
Assert.IsNotNull(map.Remove(myKey));
map.Put(myKey, "myValue");
Assert.IsTrue(map.ContainsKey(myKey));
Assert.AreEqual(map.Get(myKey), "myValue");
for (Iterator <Object> itr = map.KeySet().Iterator(); itr.HasNext;)
{
Object key = itr.Next();
if (found = key == myKey)
{
break;
}
}
Assert.IsTrue(found, "Did not find new key instance in hashmap");
// Ensure keys with identical hashcode are stored separately
HashMap <Object, Object> objmap = new HashMap <Object, Object>();
for (int i = 0; i < 32768; i++)
{
objmap.Put(i, "foobar");
}
// Put non-equal object with same hashcode
MyKey aKey = new MyKey();
Assert.IsNull(objmap.Put(aKey, "value"));
Assert.IsNull(objmap.Remove(new MyKey()));
Assert.AreEqual(objmap.Get(0), "foobar");
Assert.AreEqual(objmap.Get(aKey), "value");
}
