public static void TestIDictionary()
{
IDictionary dictionary = new NonBlocking.ConcurrentDictionary <string, int>();
Assert.False(dictionary.IsReadOnly);
// Empty dictionary should not enumerate
Assert.Empty(dictionary);
const int SIZE = 10;
for (int i = 0; i < SIZE; i++)
{
dictionary.Add(i.ToString(), i);
}
Assert.Equal(SIZE, dictionary.Count);
//test contains
Assert.False(dictionary.Contains(1), "TestIDictionary: FAILED. Contain retuned true for incorrect key type");
Assert.False(dictionary.Contains("100"), "TestIDictionary: FAILED. Contain retuned true for incorrect key");
Assert.True(dictionary.Contains("1"), "TestIDictionary: FAILED. Contain retuned false for correct key");
//test GetEnumerator
int count = 0;
foreach (var obj in dictionary)
{
DictionaryEntry entry = (DictionaryEntry)obj;
string key = (string)entry.Key;
int value = (int)entry.Value;
int expectedValue = int.Parse(key);
Assert.True(value == expectedValue,
String.Format("TestIDictionary: FAILED. Unexpected value returned from GetEnumerator, expected {0}, actual {1}", value, expectedValue));
count++;
}
Assert.Equal(SIZE, count);
Assert.Equal(SIZE, dictionary.Keys.Count);
Assert.Equal(SIZE, dictionary.Values.Count);
//Test Remove
dictionary.Remove("9");
Assert.Equal(SIZE - 1, dictionary.Count);
//Test this[]
for (int i = 0; i < dictionary.Count; i++)
{
Assert.Equal(i, (int)dictionary[i.ToString()]);
}
dictionary["1"] = 100; // try a valid setter
Assert.Equal(100, (int)dictionary["1"]);
//nonsexist key
Assert.Null(dictionary["NotAKey"]);
}
public static void TestIDictionary_Negative()
{
IDictionary dictionary = new NonBlocking.ConcurrentDictionary <string, int>();
Assert.Throws <ArgumentNullException>(
() => dictionary.Add(null, 1));
// "TestIDictionary: FAILED. Add didn't throw ANE when null key is passed");
Assert.Throws <ArgumentException>(
() => dictionary.Add(1, 1));
// "TestIDictionary: FAILED. Add didn't throw AE when incorrect key type is passed");
Assert.Throws <ArgumentException>(
() => dictionary.Add("1", "1"));
// "TestIDictionary: FAILED. Add didn't throw AE when incorrect value type is passed");
Assert.Throws <ArgumentNullException>(
() => dictionary.Contains(null));
// "TestIDictionary: FAILED. Contain didn't throw ANE when null key is passed");
//Test Remove
Assert.Throws <ArgumentNullException>(
() => dictionary.Remove(null));
// "TestIDictionary: FAILED. Remove didn't throw ANE when null key is passed");
//Test this[]
Assert.Throws <ArgumentNullException>(
() => { object val = dictionary[null]; });
// "TestIDictionary: FAILED. this[] getter didn't throw ANE when null key is passed");
Assert.Throws <ArgumentNullException>(
() => dictionary[null] = 0);
// "TestIDictionary: FAILED. this[] setter didn't throw ANE when null key is passed");
Assert.Throws <ArgumentException>(
() => dictionary[1] = 0);
// "TestIDictionary: FAILED. this[] setter didn't throw AE when invalid key type is passed");
Assert.Throws <ArgumentException>(
() => dictionary["1"] = "0");
// "TestIDictionary: FAILED. this[] setter didn't throw AE when invalid value type is passed");
}