public void CanBindResolvesExternalBindings()
{
JoinedDataSet dataSet = new JoinedDataSet();
DataSource dataSet1 = new DataSource("");
dataSet1.AddIndexAlias("path", 1);
dataSet1.AddDataSet(new ItemSequenceDataSet(EmptyArray<IDataItem>.Instance, 3));
IDataSet dataSet2 = new ItemSequenceDataSet(EmptyArray<IDataItem>.Instance, 2);
dataSet.AddDataSet(dataSet1);
dataSet.AddDataSet(dataSet2);
Assert.IsFalse(dataSet.CanBind(new DataBinding(null, null)),
"Cannot bind because there is no path or index.");
Assert.IsFalse(dataSet.CanBind(new DataBinding(5, null)),
"Cannot bind because index 5 is beyond the range of columns in the joined data set.");
Assert.IsTrue(dataSet.CanBind(new DataBinding(4, null)),
"Can bind because index 4 is within the range of columns in the joined data set.");
Assert.IsTrue(dataSet.CanBind(new DataBinding(0, null)),
"Can bind because index 0 is within the range of columns in the joined data set.");
Assert.IsTrue(dataSet.CanBind(new DataBinding(null, "path")),
"Can bind because path is supported by one of the data sets.");
}
public void CanBindResolvesScopedBindings()
{
JoinedDataSet dataSet = new JoinedDataSet();
DataSource dataSet1 = new DataSource("");
dataSet1.AddIndexAlias("path", 1);
dataSet1.AddDataSet(new ItemSequenceDataSet(EmptyArray<IDataItem>.Instance, 3));
IDataSet dataSet2 = new ItemSequenceDataSet(EmptyArray<IDataItem>.Instance, 2);
dataSet.AddDataSet(dataSet1);
dataSet.AddDataSet(dataSet2);
Assert.IsFalse(dataSet.CanBind(dataSet.TranslateBinding(dataSet1, new DataBinding(null, null))),
"Cannot bind because there is no path or index in the translated binding.");
Assert.IsFalse(dataSet.CanBind(dataSet.TranslateBinding(dataSet1, new DataBinding(3, null))),
"Cannot bind because index 3 is beyond the range of columns in the scoped data set.");
Assert.IsFalse(dataSet.CanBind(dataSet.TranslateBinding(dataSet2, new DataBinding(2, null))),
"Cannot bind because index 2 is beyond the range of columns in the scoped data set.");
Assert.IsTrue(dataSet.CanBind(dataSet.TranslateBinding(dataSet2, new DataBinding(1, null))),
"Can bind because index 1 is within the range of columns in the scoped data set.");
Assert.IsTrue(dataSet.CanBind(dataSet.TranslateBinding(dataSet1, new DataBinding(null, "path"))),
"Can bind because path is supported by one of the scoped data set.");
Assert.IsFalse(dataSet.CanBind(dataSet.TranslateBinding(dataSet2, new DataBinding(null, "path"))),
"Cannot bind because path is supported by one of the scoped data set.");
}
public void CanBindReturnsFalseIfThereAreNoDataSets()
{
JoinedDataSet dataSet = new JoinedDataSet();
Assert.IsFalse(dataSet.CanBind(new DataBinding(0, null)),
"Cannot bind because there are no data sets.");
}