public void Comparer_Set_ImpactsSearch()
{
var hash = new ComparableHashtable(CaseInsensitiveHashCodeProvider.DefaultInvariant, StringComparer.OrdinalIgnoreCase);
hash.Add("test", "test");
// Should be able to find with the same and different casing
Assert.True(hash.ContainsKey("test"));
Assert.True(hash.ContainsKey("TEST"));
// Changing the comparer, should only be able to find the matching case
hash.Comparer = StringComparer.Ordinal;
Assert.True(hash.ContainsKey("test"));
Assert.False(hash.ContainsKey("TEST"));
// Changing it back, should be able to find both again
hash.Comparer = StringComparer.OrdinalIgnoreCase;
Assert.True(hash.ContainsKey("test"));
Assert.True(hash.ContainsKey("TEST"));
}
private static void VerifyHashtable(ComparableHashtable hash1, Hashtable hash2, IEqualityComparer ikc)
{
if (hash2 == null)
{
Assert.Equal(0, hash1.Count);
}
else
{
// Make sure that construtor imports all keys and values
Assert.Equal(hash2.Count, hash1.Count);
for (int i = 0; i < 100; i++)
{
Assert.True(hash1.ContainsKey(i));
Assert.True(hash1.ContainsValue(i));
}
// Make sure the new and old hashtables are not linked
hash2.Clear();
for (int i = 0; i < 100; i++)
{
Assert.True(hash1.ContainsKey(i));
Assert.True(hash1.ContainsValue(i));
}
}
Assert.Equal(ikc, hash1.EqualityComparer);
Assert.False(hash1.IsFixedSize);
Assert.False(hash1.IsReadOnly);
Assert.False(hash1.IsSynchronized);
// Make sure we can add to the hashtable
int count = hash1.Count;
for (int i = count; i < count + 100; i++)
{
hash1.Add(i, i);
Assert.True(hash1.ContainsKey(i));
Assert.True(hash1.ContainsValue(i));
}
}
public void HashCodeProvider_Set_ImpactsSearch()
{
var hash = new ComparableHashtable(CaseInsensitiveHashCodeProvider.DefaultInvariant, StringComparer.OrdinalIgnoreCase);
hash.Add("test", "test");
// Should be able to find with the same and different casing
Assert.True(hash.ContainsKey("test"));
Assert.True(hash.ContainsKey("TEST"));
// Changing the hash code provider, we shouldn't be able to find either
hash.HashCodeProvider = new FixedHashCodeProvider
{
FixedHashCode = CaseInsensitiveHashCodeProvider.DefaultInvariant.GetHashCode("test") + 1
};
Assert.False(hash.ContainsKey("test"));
Assert.False(hash.ContainsKey("TEST"));
// Changing it back, should be able to find both again
hash.HashCodeProvider = CaseInsensitiveHashCodeProvider.DefaultInvariant;
Assert.True(hash.ContainsKey("test"));
Assert.True(hash.ContainsKey("TEST"));
}
private static void VerifyHashtable(ComparableHashtable hash1, Hashtable hash2, IEqualityComparer ikc)
{
if (hash2 == null)
{
Assert.Equal(0, hash1.Count);
}
else
{
// Make sure that construtor imports all keys and values
Assert.Equal(hash2.Count, hash1.Count);
for (int i = 0; i < 100; i++)
{
Assert.True(hash1.ContainsKey(i));
Assert.True(hash1.ContainsValue(i));
}
// Make sure the new and old hashtables are not linked
hash2.Clear();
for (int i = 0; i < 100; i++)
{
Assert.True(hash1.ContainsKey(i));
Assert.True(hash1.ContainsValue(i));
}
}
Assert.Equal(ikc, hash1.EqualityComparer);
Assert.False(hash1.IsFixedSize);
Assert.False(hash1.IsReadOnly);
Assert.False(hash1.IsSynchronized);
// Make sure we can add to the hashtable
int count = hash1.Count;
for (int i = count; i < count + 100; i++)
{
hash1.Add(i, i);
Assert.True(hash1.ContainsKey(i));
Assert.True(hash1.ContainsValue(i));
}
}
public static void Comparer_Set_ImpactsSearch()
{
var hash = new ComparableHashtable(CaseInsensitiveHashCodeProvider.DefaultInvariant, StringComparer.OrdinalIgnoreCase);
hash.Add("test", "test");
// Should be able to find with the same and different casing
Assert.True(hash.ContainsKey("test"));
Assert.True(hash.ContainsKey("TEST"));
// Changing the comparer, should only be able to find the matching case
hash.Comparer = StringComparer.Ordinal;
Assert.True(hash.ContainsKey("test"));
Assert.False(hash.ContainsKey("TEST"));
// Changing it back, should be able to find both again
hash.Comparer = StringComparer.OrdinalIgnoreCase;
Assert.True(hash.ContainsKey("test"));
Assert.True(hash.ContainsKey("TEST"));
}
public static void HashCodeProvider_Set_ImpactsSearch()
{
var hash = new ComparableHashtable(CaseInsensitiveHashCodeProvider.DefaultInvariant, StringComparer.OrdinalIgnoreCase);
hash.Add("test", "test");
// Should be able to find with the same and different casing
Assert.True(hash.ContainsKey("test"));
Assert.True(hash.ContainsKey("TEST"));
// Changing the hash code provider, we shouldn't be able to find either
hash.HashCodeProvider = new FixedHashCodeProvider
{
FixedHashCode = CaseInsensitiveHashCodeProvider.DefaultInvariant.GetHashCode("test") + 1
};
Assert.False(hash.ContainsKey("test"));
Assert.False(hash.ContainsKey("TEST"));
// Changing it back, should be able to find both again
hash.HashCodeProvider = CaseInsensitiveHashCodeProvider.DefaultInvariant;
Assert.True(hash.ContainsKey("test"));
Assert.True(hash.ContainsKey("TEST"));
}