// Check the contents of a ReadOnly Multi-Dictionary non-destructively. Keys and Values must be in order.
internal static void CheckOrderedReadOnlyMultiDictionaryContents <TKey, TValue>(ReadOnlyMultiDictionaryBase <TKey, TValue> dict,
TKey[] keys, TValue[][] values, TKey nonKey,
TValue nonValue, string name,
Func <TKey, TKey, bool> keyEquals,
Func <TValue, TValue, bool> valueEquals)
{
int iKey, iValue;
ICollection <TValue> getValues;
if (keyEquals == null)
{
keyEquals = delegate(TKey x, TKey y) { return(object.Equals(x, y)); }
}
;
if (valueEquals == null)
{
valueEquals = delegate(TValue x, TValue y) { return(object.Equals(x, y)); }
}
;
// Check Count.
Assert.AreEqual(keys.Length, dict.Count);
// Check indexer, ContainsKey, Contains, TryGetValue for each key.
for (iKey = 0; iKey < keys.Length; ++iKey)
{
Assert.IsTrue(dict.ContainsKey(keys[iKey]));
Assert.IsTrue(dict.Contains(new KeyValuePair <TKey, ICollection <TValue> >(keys[iKey], values[iKey])));
bool b = ((IDictionary <TKey, ICollection <TValue> >)dict).TryGetValue(keys[iKey], out getValues);
Assert.IsTrue(b);
iValue = 0;
foreach (TValue val in getValues)
{
Assert.IsTrue(valueEquals(values[iKey][iValue], val));
++iValue;
}
iValue = 0;
foreach (TValue val in values[iKey])
{
Assert.IsTrue(dict.Contains(keys[iKey], val));
++iValue;
}
iValue = 0;
foreach (TValue val in dict[keys[iKey]])
{
Assert.IsTrue(valueEquals(values[iKey][iValue], val));
++iValue;
}
Assert.IsTrue(iValue == values[iKey].Length);
}
// Check Keys collection.
iKey = 0;
foreach (TKey key in dict.Keys)
{
Assert.IsTrue(keyEquals(keys[iKey], key));
++iKey;
}
Assert.IsTrue(iKey == keys.Length);
InterfaceTests.TestReadonlyCollectionGeneric <TKey>(dict.Keys, keys, true, null);
// Check Values collection
iKey = 0;
iValue = 0;
int valueCount = 0;
foreach (TValue val in dict.Values)
{
Assert.IsTrue(valueEquals(values[iKey][iValue], val));
++iValue;
if (iValue == values[iKey].Length)
{
iValue = 0;
++iKey;
}
++valueCount;
}
Assert.IsTrue(iKey == keys.Length);
int a = 0;
TValue[] vals = new TValue[valueCount];
for (iKey = 0; iKey < keys.Length; ++iKey)
{
for (iValue = 0; iValue < values[iKey].Length; ++iValue)
{
vals[a++] = values[iKey][iValue];
}
}
InterfaceTests.TestReadonlyCollectionGeneric <TValue>(dict.Values, vals, true, null);
// Check KeyValuePairs collection.
iKey = 0;
iValue = 0;
valueCount = 0;
foreach (KeyValuePair <TKey, TValue> pair in dict.KeyValuePairs)
{
Assert.IsTrue(keyEquals(keys[iKey], pair.Key));
Assert.IsTrue(valueEquals(values[iKey][iValue], pair.Value));
++iValue;
if (iValue == values[iKey].Length)
{
iValue = 0;
++iKey;
}
++valueCount;
}
Assert.IsTrue(iKey == keys.Length);
a = 0;
KeyValuePair <TKey, TValue>[] pairs = new KeyValuePair <TKey, TValue> [valueCount];
for (iKey = 0; iKey < keys.Length; ++iKey)
{
for (iValue = 0; iValue < values[iKey].Length; ++iValue)
{
pairs[a++] = new KeyValuePair <TKey, TValue>(keys[iKey], values[iKey][iValue]);
}
}
InterfaceTests.TestReadonlyCollectionGeneric <KeyValuePair <TKey, TValue> >(dict.KeyValuePairs, pairs, true, null);
// Tests Contains, ContainsKey, TryGetValue for wrong values.
Assert.IsFalse(dict.ContainsKey(nonKey));
Assert.IsFalse(((IDictionary <TKey, ICollection <TValue> >)dict).TryGetValue(nonKey, out getValues));
for (iKey = 0; iKey < keys.Length; ++iKey)
{
Assert.IsFalse(dict.Contains(keys[iKey], nonValue));
Assert.IsFalse(dict.Contains(new KeyValuePair <TKey, ICollection <TValue> >(keys[iKey], new TValue[1] {
nonValue
})));
}
// Test IDictionary<TKey,IEnumerable<TValue>> implementation
InterfaceTests.TestReadOnlyMultiDictionaryGeneric <TKey, TValue>(dict, keys, values, nonKey, nonValue, true, name, null, null);
}
public EnumerableValuesCollection(ReadOnlyMultiDictionaryBase <TKey, TValue> myDictionary)
{
_myDictionary = myDictionary;
}
public KeyValuePairsCollection(ReadOnlyMultiDictionaryBase <TKey, TValue> myDictionary)
{
_myDictionary = myDictionary;
}
/// <summary>
/// Constructor. Initializes this collection.
/// </summary>
/// <param name="myDictionary">Dictionary we're using.</param>
/// <param name="key">The key we're looking at.</param>
public ValuesForKeyCollection(ReadOnlyMultiDictionaryBase <TKey, TValue> myDictionary, TKey key)
{
_myDictionary = myDictionary;
_key = key;
}