public void Getter_ResultIsReturned()
{
var krw = new KeyedReaderWriter<object, object>(k => 42, (k, v) => false, null);
var result = krw.Get(null);
Assert.IsTrue(42 == (int)result);
}
public void Setter_IsCalled()
{
bool executed = false;
var krw = new KeyedReaderWriter<object, object>(k => null, (k, v) => { executed = true; return false; }, null);
krw.Set(null, null);
Assert.IsTrue(executed);
}
public void Setter_ValueIsUsed()
{
object result = null;
var krw = new KeyedReaderWriter<object, object>(k => null, (k, v) => { result = v; return true; }, null);
krw.Set(null, 42);
Assert.IsTrue(42 == (int)result);
}
public void Setter_ResultIsReturned()
{
bool returnValue = false;
var krw = new KeyedReaderWriter<object, object>(k => null, (k, v) => returnValue, null);
Assert.IsFalse(krw.Set(null, null));
returnValue = true;
Assert.IsTrue(krw.Set(null, null));
}
public void FromKeyedReaderWriter_UsesReaderWriter()
{
int result = 0;
var krw = new KeyedReaderWriter<int, int>(x => x * 2, (i, v) => { result = i * v; return true; }, null);
var indexer = Indexer.FromKeyedReaderWriter(krw);
Assert.AreEqual(2, indexer[1]);
Assert.AreEqual(4, indexer[2]);
Assert.AreEqual(6, indexer[3]);
indexer[2] = 4;
Assert.AreEqual(8, result);
indexer[3] = 3;
Assert.AreEqual(9, result);
}
public void FromKeyedReaderWriter_UsesKnownIndexes()
{
var krw = new KeyedReaderWriter<int, int>(x => x, (i, v) => true, () => new[]{1,2,3,4,5});
var indexer = Indexer.FromKeyedReaderWriter(krw);
Assert.IsTrue(indexer.SequenceEqual(new[] { 1, 2, 3, 4, 5 }));
}
