public void Check_Alias_Save_Test()
{
_saved = string.Empty;
var writerMock = new Mock <IStreamWriter>();
writerMock.Setup(x => x.Write(It.IsAny <string>())).Callback <string>(x =>
{
_saved = x;
});
var writer = writerMock.Object;
var directorySystemMock = new Mock <IDirectory>();
var directorySystem = directorySystemMock.Object;
var fileSystemMock = new Mock <IFile>();
fileSystemMock.Setup(x => x.CreateText(It.IsAny <string>())).Returns(writer);
var fileSystem = fileSystemMock.Object;
var provider = new AliasProvider(directorySystem, fileSystem);
var aliases = provider.GetAliases();
provider.Save();
Assert.Equal("{}", _saved);
aliases.Add(new Alias {
Key = "Key", Value = "Value"
});
provider.Save();
Assert.Equal("{\"Key\":\"Value\"}", _saved);
}
/// <inheritdoc/>
protected override SqlProvider VisitAlias(AliasProvider provider)
{
var source = Compile(provider.Source);
SqlSelect sourceSelect = source.Request.Statement;
var sqlSelect = sourceSelect.ShallowClone();
var columns = sqlSelect.Columns.ToList();
sqlSelect.Columns.Clear();
for (int i = 0; i < columns.Count; i++)
{
var columnName = provider.Header.Columns[i].Name;
columnName = ProcessAliasedName(columnName);
var column = columns[i];
var columnRef = column as SqlColumnRef;
var columnStub = column as SqlColumnStub;
if (!ReferenceEquals(null, columnRef))
{
sqlSelect.Columns.Add(SqlDml.ColumnRef(columnRef.SqlColumn, columnName));
}
else if (!ReferenceEquals(null, columnStub))
{
sqlSelect.Columns.Add(columnStub);
}
else
{
sqlSelect.Columns.Add(column, columnName);
}
}
return(CreateProvider(sqlSelect, provider, source));
}
public void AliasColumns(AliasProvider provider)
{
if (owner.State.Predicates.Count > 0)
{
owner.State.Predicates = collectorHelper.GenericAliasColumns(provider, owner.State.Predicates);
}
}
protected override Provider VisitAlias(AliasProvider provider)
{
var source = VisitCompilable(provider.Source);
var newProvider = source != provider.Source ? new AliasProvider(source, provider.Alias) : provider;
calculateProviderCollector.AliasColumns(provider);
predicateCollector.AliasColumns(provider);
return(newProvider);
}
public void Check_Empty_Alias_List_Is_Provided_On_NonExisting_File_Test()
{
var directorySystemMock = new Mock <IDirectory>();
var directorySystem = directorySystemMock.Object;
var fileSystemMock = new Mock <IFile>();
var fileSystem = fileSystemMock.Object;
var provider = new AliasProvider(directorySystem, fileSystem);
List <Alias> aliases = provider.GetAliases().ToList();
Assert.NotNull(aliases);
Assert.Equal(0, aliases.Count);
}
public void AliasColumns(AliasProvider provider)
{
if (owner.State.CalculateProviders.Count > 0)
{
owner.State.CalculateProviders = collectorHelper.GenericAliasColumns(provider,
owner.State.CalculateProviders);
}
if (owner.State.CalculateFilters.Count > 0)
{
owner.State.CalculateFilters = collectorHelper.GenericAliasColumns(provider,
owner.State.CalculateFilters);
}
}
GenericAliasColumns <TDictKey, TPairKey>(AliasProvider provider,
Dictionary <TDictKey, List <Pair <TPairKey, ColumnCollection> > > currentState)
{
var newFilters =
new Dictionary <TDictKey, List <Pair <TPairKey, ColumnCollection> > >(currentState.Count);
foreach (var providerPair in currentState)
{
var newProviderPairValue = new List <Pair <TPairKey, ColumnCollection> >();
foreach (var predicatePair in providerPair.Value)
{
var newPredicatePair = new Pair <TPairKey, ColumnCollection>(
predicatePair.First, predicatePair.Second.Alias(provider.Alias));
newProviderPairValue.Add(newPredicatePair);
}
newFilters.Add(providerPair.Key, newProviderPairValue);
}
return(newFilters);
}
public void Check_NotEmpty_Alias_List_Is_Provided_On_Existing_File_Test()
{
var readerMock = new Mock <IStreamReader>();
readerMock.Setup(x => x.ReadToEnd()).Returns("{ \"Key\": \"Value\" }");
var reader = readerMock.Object;
var directorySystemMock = new Mock <IDirectory>();
var directorySystem = directorySystemMock.Object;
var fileSystemMock = new Mock <IFile>();
fileSystemMock.Setup(x => x.Exists(It.IsAny <string>())).Returns(true);
fileSystemMock.Setup(x => x.OpenText(It.IsAny <string>())).Returns(reader);
var fileSystem = fileSystemMock.Object;
var provider = new AliasProvider(directorySystem, fileSystem);
List <Alias> aliases = provider.GetAliases().ToList();
Assert.NotNull(aliases);
Assert.Equal(1, aliases.Count);
Assert.Equal("Key", aliases[0].Key);
Assert.Equal("Value", aliases[0].Value);
}
/// <summary> /// Compiles <see cref="AliasProvider"/>. /// </summary> /// <param name="provider">Alias provider.</param> protected abstract TResult VisitAlias(AliasProvider provider);
