public void WeakKeyDictionaryAsICollectionWithData_Clear_EnsureEmpty()
{
const int NumValuesToAdd = 100;
ICollection <KeyValuePair <string, int> > dictionary = new WeakKeyDictionary <string, int>();
var keeperArounder = new List <KeyValuePair <string, int> >();
for (int i = 0; i < NumValuesToAdd; ++i)
{
var entry = new KeyValuePair <string, int>(i.ToString(), i);
keeperArounder.Add(entry);
dictionary.Add(entry);
}
Assert.Equal(NumValuesToAdd, dictionary.Count);
dictionary.Clear();
Assert.Equal(0, dictionary.Count);
}
public void WeakKeyDictionaryWithData_Clear_EnsureEmpty()
{
const int NumValuesToAdd = 100;
var keeperArounder = new List <string>();
var dictionary = new WeakKeyDictionary <string, int>();
for (int i = 0; i < NumValuesToAdd; ++i)
{
var key = i.ToString();
keeperArounder.Add(key);
dictionary.Add(key, i);
}
Assert.Equal(NumValuesToAdd, dictionary.Count);
dictionary.Clear();
Assert.Equal(0, dictionary.Count);
}
public void Test_WeakKeyDictionary_CRUD()
{
var weakKeyDictionary = new WeakKeyDictionary<TestKey, int>();
var key = new TestKey("Yohan");
weakKeyDictionary.Add(key, 1);
Assert.AreEqual(1, weakKeyDictionary.Count);
Assert.AreEqual(1, weakKeyDictionary[key]);
weakKeyDictionary.Remove(key);
Assert.AreEqual(0, weakKeyDictionary.Count);
Exception exception = null;
try
{
weakKeyDictionary.Remove(null);
}
catch (ArgumentNullException e)
{
exception = e;
}
Assert.IsNotNull(exception);
exception = null;
try
{
var i = weakKeyDictionary[new TestKey("1")];
}
catch (KeyNotFoundException e)
{
exception = e;
}
Assert.IsNotNull(exception);
key = new TestKey("Yohan2");
weakKeyDictionary.Add(key, 1);
Assert.AreEqual(1, weakKeyDictionary[key]);
weakKeyDictionary.Clear();
Assert.AreEqual(0, weakKeyDictionary.Count);
weakKeyDictionary.Add(key, 1);
Assert.IsTrue(weakKeyDictionary.ContainsKey(key));
Assert.IsTrue(weakKeyDictionary.ContainsValue(1));
weakKeyDictionary[key] = 2;
Assert.AreEqual(2, weakKeyDictionary[key]);
bool contains = weakKeyDictionary.ContainsValue(2);
Assert.IsTrue(contains);
exception = null;
try
{
weakKeyDictionary[null] = 3;
}
catch (ArgumentNullException e)
{
exception = e;
}
Assert.IsNotNull(exception);
exception = null;
try
{
weakKeyDictionary.Add(key, 1);
}
catch (ArgumentException e)
{
exception = e;
}
Assert.IsNotNull(exception);
int value;
weakKeyDictionary.TryGetValue(key, out value);
Assert.AreEqual(2, value);
var count = weakKeyDictionary.Count;
key = null;
GC.Collect();
weakKeyDictionary.Add(new TestKey("yohan9"), 2);
Assert.AreEqual(count, weakKeyDictionary.Keys.Count);
}
public void Test_WeakKeyDictionary_CRUD()
{
var weakKeyDictionary = new WeakKeyDictionary <TestKey, int>();
var key = new TestKey("Yohan");
weakKeyDictionary.Add(key, 1);
Assert.AreEqual(1, weakKeyDictionary.Count);
Assert.AreEqual(1, weakKeyDictionary[key]);
weakKeyDictionary.Remove(key);
Assert.AreEqual(0, weakKeyDictionary.Count);
Exception exception = null;
try
{
weakKeyDictionary.Remove(null);
}
catch (ArgumentNullException e)
{
exception = e;
}
Assert.IsNotNull(exception);
exception = null;
try
{
var i = weakKeyDictionary[new TestKey("1")];
}
catch (KeyNotFoundException e)
{
exception = e;
}
Assert.IsNotNull(exception);
key = new TestKey("Yohan2");
weakKeyDictionary.Add(key, 1);
Assert.AreEqual(1, weakKeyDictionary[key]);
weakKeyDictionary.Clear();
Assert.AreEqual(0, weakKeyDictionary.Count);
weakKeyDictionary.Add(key, 1);
Assert.IsTrue(weakKeyDictionary.ContainsKey(key));
Assert.IsTrue(weakKeyDictionary.ContainsValue(1));
weakKeyDictionary[key] = 2;
Assert.AreEqual(2, weakKeyDictionary[key]);
bool contains = weakKeyDictionary.ContainsValue(2);
Assert.IsTrue(contains);
exception = null;
try
{
weakKeyDictionary[null] = 3;
}
catch (ArgumentNullException e)
{
exception = e;
}
Assert.IsNotNull(exception);
exception = null;
try
{
weakKeyDictionary.Add(key, 1);
}
catch (ArgumentException e)
{
exception = e;
}
Assert.IsNotNull(exception);
int value;
weakKeyDictionary.TryGetValue(key, out value);
Assert.AreEqual(2, value);
var count = weakKeyDictionary.Count;
key = null;
GC.Collect();
weakKeyDictionary.Add(new TestKey("yohan9"), 2);
Assert.AreEqual(count, weakKeyDictionary.Keys.Count);
}