public TransformerDatabaseTests()
{
_memoryDatabase = new MemoryDatabase <string, int>();
_keyTransformer = new MockTransformer();
_valueTransformer = new MockTransformer();
_transformDatabase = new TransformDatabase <string, int, int, string>
(
db: _memoryDatabase,
keyTransformer: _keyTransformer.Reverse(),
valueTransformer: _valueTransformer
);
_values = new[]
{
KeyValuePair.Create(1, "a"),
KeyValuePair.Create(2, "b"),
KeyValuePair.Create(3, "c"),
};
_expectValues = _values
.Select
(
x => KeyValuePair.Create
(
_keyTransformer.TransformPre(x.Key),
_valueTransformer.TransformPost(x.Value)
)
)
.ToArray();
}
public void Enumerate()
{
var db = new MemoryDatabase <string, int>();
var kt = new MockTransformer();
var vt = new MockTransformer();
var tdb = new TransformDatabase <string, int, int, string>
(
db: db,
keyTransformer: new ReverseTransformer <string, int>(kt),
valueTransformer: vt
);
tdb.InsertRange(new KeyValuePair <int, string>[]
{
new KeyValuePair <int, string>(1, "a"),
new KeyValuePair <int, string>(2, "b"),
new KeyValuePair <int, string>(3, "c"),
});
tdb.EnumerateAggressively(3)
.Should()
.BeEquivalentTo(new KeyValuePair <int, string>[]
{
new KeyValuePair <int, string>(1, "a"),
new KeyValuePair <int, string>(2, "b"),
new KeyValuePair <int, string>(3, "c"),
});
}
