/// <inheritdoc />
protected override void PopulateDataSource(IPatternScope scope, DataSource dataSource, ICodeElementInfo codeElement)
{
for (int i = 0; i < columnNames.Length; i++)
dataSource.AddIndexAlias(columnNames[i], i);
}
public void AddIndexAliasThrowsIfPathIsNull()
{
DataSource source = new DataSource("theName");
source.AddIndexAlias(null, 2);
}
public void CanBindAppliesIndexAliasTranslation()
{
IDataSet dataSet = Mocks.StrictMock<IDataSet>();
using (Mocks.Record())
{
SetupResult.For(dataSet.ColumnCount).Return(2);
Expect.Call(dataSet.CanBind(null)).IgnoreArguments().Do((CanBindDelegate)delegate(DataBinding binding)
{
Assert.AreEqual("translatedPath", binding.Path);
Assert.AreEqual(2, binding.Index);
return true;
});
Expect.Call(dataSet.CanBind(null)).IgnoreArguments().Do((CanBindDelegate)delegate(DataBinding binding)
{
Assert.AreEqual("untranslatedPath", binding.Path);
Assert.AreEqual(5, binding.Index);
return false;
});
}
using (Mocks.Playback())
{
DataSource source = new DataSource("theName");
source.AddIndexAlias("translatedPath", 2);
source.AddDataSet(dataSet);
Assert.IsTrue(source.CanBind(new DataBinding(5, "translatedPath")));
Assert.IsFalse(source.CanBind(new DataBinding(5, "untranslatedPath")));
}
}
public void CanGetDescriptiveDataBindingsFromItem()
{
DataSource dataSet = new DataSource("Source");
dataSet.AddDataSet(new ItemSequenceDataSet(new[] { new DataRow("abc", "def") }, 2));
dataSet.AddIndexAlias("xxx", 1);
List<IDataItem> items = new List<IDataItem>(dataSet.GetItems(EmptyArray<DataBinding>.Instance, true));
Assert.AreElementsEqual(new[]
{
new DataBinding(0, null),
new DataBinding(1, "xxx")
}, items[0].GetBindingsForInformalDescription());
}
public void GetItemsAppliesIndexAliasTranslation()
{
List<KeyValuePair<string, string>> metadataPairs = new List<KeyValuePair<string, string>>();
metadataPairs.Add(new KeyValuePair<string, string>("Foo", "Bar"));
IDataSet dataSet = Mocks.StrictMock<IDataSet>();
using (Mocks.Record())
{
SetupResult.For(dataSet.ColumnCount).Return(3);
Expect.Call(dataSet.GetItems(null, true)).IgnoreArguments().Do((GetItemsDelegate)delegate(ICollection<DataBinding> bindings,
bool includeDynamicItems)
{
Assert.IsTrue(includeDynamicItems);
List<IDataItem> items = new List<IDataItem>();
items.Add(new ListDataItem<object>(new object[] { "abc", "def", "ghi" }, metadataPairs, true));
List<DataBinding> bindingList = new List<DataBinding>(bindings);
Assert.AreEqual("translatedPath", bindingList[0].Path);
Assert.AreEqual(2, bindingList[0].Index);
Assert.AreEqual("untranslatedPath", bindingList[1].Path);
Assert.AreEqual(1, bindingList[1].Index);
return items;
});
}
using (Mocks.Playback())
{
DataSource source = new DataSource("theName");
source.AddIndexAlias("translatedPath", 2);
source.AddDataSet(dataSet);
DataBinding[] bindings = new DataBinding[] {
new DataBinding(5, "translatedPath"),
new DataBinding(1, "untranslatedPath")
};
List<IDataItem> items = new List<IDataItem>(source.GetItems(bindings, true));
Assert.Count(1, items);
PropertyBag map = DataItemUtils.GetMetadata(items[0]);
Assert.Count(1, map);
Assert.AreEqual("Bar", map.GetValue("Foo"));
Assert.Throws<ArgumentNullException>(delegate { items[0].GetValue(null); });
Assert.AreEqual("ghi", items[0].GetValue(bindings[0]));
Assert.AreEqual("def", items[0].GetValue(bindings[1]));
// Should throw ArgumentNullException when binding list is null.
Assert.Throws<ArgumentNullException>(delegate
{
items[0].GetValue(null);
});
}
}
public void GetItemsDelegatesToTheStrategy()
{
JoinedDataSet dataSet = new JoinedDataSet();
IList<KeyValuePair<string, string>> metadata1 = new KeyValuePair<string, string>[]
{
new KeyValuePair<string, string>("abc", "123"),
new KeyValuePair<string, string>("def", "456")
};
IList<KeyValuePair<string, string>> metadata2 = new KeyValuePair<string, string>[]
{
new KeyValuePair<string, string>("ghi", "789"),
};
DataSource dataSet1 = new DataSource("");
dataSet1.AddIndexAlias("path", 1);
dataSet1.AddDataSet(new ItemSequenceDataSet(new IDataItem[]
{
new ListDataItem<int>(new int[] { 1, 2, 3 }, metadata1, false),
new ListDataItem<int>(new int[] { -1, -2, -3 }, metadata2, false)
}, 3));
dataSet.AddDataSet(dataSet1);
IDataSet dataSet2 = new ItemSequenceDataSet(new IDataItem[]
{
new ListDataItem<int>(new int[] { 4, 5 }, metadata2, false),
new ListDataItem<int>(new int[] { -4, -5 }, null, true)
}, 2);
dataSet.AddDataSet(dataSet2);
List<IDataItem> dataSet1Items = new List<IDataItem>(dataSet1.GetItems(EmptyArray<DataBinding>.Instance, true));
List<IDataItem> dataSet2Items = new List<IDataItem>(dataSet2.GetItems(EmptyArray<DataBinding>.Instance, true));
List<IList<IDataItem>> results = new List<IList<IDataItem>>();
results.Add(new IDataItem[] { dataSet1Items[0], dataSet2Items[0] });
results.Add(new IDataItem[] { dataSet1Items[1], dataSet2Items[1] });
IJoinStrategy strategy = Mocks.StrictMock<IJoinStrategy>();
dataSet.Strategy = strategy;
DataBinding pathBinding = new DataBinding(null, "path");
DataBinding indexZeroBinding = new DataBinding(0, null);
DataBinding indexOneBinding = new DataBinding(1, null);
DataBinding indexThreeBinding = new DataBinding(3, null);
DataBinding[] bindings = new DataBinding[]
{
new DataBinding(null, null), // unresolvable binding because no data sets can claim it
pathBinding, // claimed by dataSet1
indexZeroBinding, // claimed by dataSet1
indexThreeBinding, // claimed by dataSet2
dataSet.TranslateBinding(dataSet1, pathBinding), // scoped by dataSet1
dataSet.TranslateBinding(dataSet2, indexOneBinding), // scoped by dataSet2
};
using (Mocks.Record())
{
Expect.Call(strategy.Join(null, null, true)).IgnoreArguments().Do((JoinDelegate)delegate(IList<IDataProvider> joinProviders, IList<ICollection<DataBinding>> joinBindingsPerProvider,
bool includeDynamicItems)
{
Assert.IsTrue(includeDynamicItems);
Assert.AreElementsEqual(new IDataProvider[] { dataSet1, dataSet2 }, joinProviders);
Assert.Count(2, joinBindingsPerProvider);
Assert.AreElementsEqual(new DataBinding[] { pathBinding, indexZeroBinding, pathBinding }, joinBindingsPerProvider[0]);
Assert.AreElementsEqual(new DataBinding[] { indexZeroBinding, indexOneBinding }, joinBindingsPerProvider[1]);
return results;
});
}
using (Mocks.Playback())
{
List<IDataItem> items = new List<IDataItem>(dataSet.GetItems(bindings, true));
Assert.Count(2, items);
Assert.Throws<ArgumentNullException>(delegate { items[0].GetValue(null); });
Assert.Throws<DataBindingException>(delegate { items[0].GetValue(bindings[0]); });
Assert.AreEqual(2, items[0].GetValue(bindings[1]));
Assert.AreEqual(1, items[0].GetValue(bindings[2]));
Assert.AreEqual(4, items[0].GetValue(bindings[3]));
Assert.AreEqual(2, items[0].GetValue(bindings[4]));
Assert.AreEqual(5, items[0].GetValue(bindings[5]));
PropertyBag map = DataItemUtils.GetMetadata(items[0]);
Assert.Count(3, map);
Assert.AreEqual("123", map.GetValue("abc"));
Assert.AreEqual("456", map.GetValue("def"));
Assert.AreEqual("789", map.GetValue("ghi"));
Assert.IsFalse(items[0].IsDynamic);
Assert.Throws<DataBindingException>(delegate { items[1].GetValue(bindings[0]); });
Assert.AreEqual(-2, items[1].GetValue(bindings[1]));
Assert.AreEqual(-1, items[1].GetValue(bindings[2]));
Assert.AreEqual(-4, items[1].GetValue(bindings[3]));
Assert.AreEqual(-2, items[1].GetValue(bindings[4]));
Assert.AreEqual(-5, items[1].GetValue(bindings[5]));
map = DataItemUtils.GetMetadata(items[1]);
Assert.Count(1, map);
Assert.AreEqual("789", map.GetValue("ghi"));
Assert.IsTrue(items[1].IsDynamic);
}
}
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 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.");
}