public void Test_FdbQueryUnionExpression()
{
var expr1 = FdbQueryIndexLookupExpression <int, string> .Lookup(
FooBarIndex,
(x) => x == "world"
);
var expr2 = FdbQueryIndexLookupExpression <int, long> .Lookup(
FooBazIndex,
(x) => x == 1234L
);
var expr = FdbQueryExpressions.Union(
expr1,
expr2
);
Log(expr);
Assert.That(expr, Is.Not.Null);
Assert.That(expr.Terms, Is.Not.Null);
Assert.That(expr.Terms.Count, Is.EqualTo(2));
Assert.That(expr.Terms[0], Is.SameAs(expr1));
Assert.That(expr.Terms[1], Is.SameAs(expr2));
Assert.That(expr.Type, Is.EqualTo(typeof(IAsyncEnumerable <int>)));
Assert.That(expr.ElementType, Is.EqualTo(typeof(int)));
Log(FdbQueryExpressions.ExplainSequence(expr));
}
public void Test_FdbQueryRangeExpression()
{
var expr = FdbQueryExpressions.Range(
KeySelectorPair.Create(TuPack.ToKeyRange("Foo"))
);
Log(expr);
Assert.That(expr, Is.Not.Null);
Assert.That(expr.Range.Begin.Key.ToString(), Is.EqualTo("<02>Foo<00><00>"));
Assert.That(expr.Range.End.Key.ToString(), Is.EqualTo("<02>Foo<00><FF>"));
Assert.That(expr.Type, Is.EqualTo(typeof(IAsyncEnumerable <KeyValuePair <Slice, Slice> >)));
Assert.That(expr.ElementType, Is.EqualTo(typeof(KeyValuePair <Slice, Slice>)));
Log(FdbQueryExpressions.ExplainSequence(expr));
}
public void Test_FdbQueryRangeExpression()
{
var expr = FdbQueryExpressions.Range(
FdbTuple.Create("Foo").ToSelectorPair()
);
Console.WriteLine(expr);
Assert.That(expr, Is.Not.Null);
Assert.That(expr.Range.Begin.Key.ToString(), Is.EqualTo("<02>Foo<00>"));
Assert.That(expr.Range.End.Key.ToString(), Is.EqualTo("<02>Foo<01>"));
Assert.That(expr.Type, Is.EqualTo(typeof(IFdbAsyncEnumerable <KeyValuePair <Slice, Slice> >)));
Assert.That(expr.ElementType, Is.EqualTo(typeof(KeyValuePair <Slice, Slice>)));
Console.WriteLine(FdbQueryExpressions.ExplainSequence(expr));
}
public void Test_FdbQueryFilterExpression()
{
var expr = FdbQueryExpressions.Filter(
FdbQueryExpressions.RangeStartsWith(TuPack.EncodeKey("Hello", "World")),
(kvp) => kvp.Value.ToInt32() % 2 == 0
);
Log(expr);
Assert.That(expr, Is.Not.Null);
Assert.That(expr.Source, Is.Not.Null.And.InstanceOf <FdbQueryRangeExpression>());
Assert.That(expr.Filter, Is.Not.Null);
Assert.That(expr.Type, Is.EqualTo(typeof(IAsyncEnumerable <KeyValuePair <Slice, Slice> >)));
Assert.That(expr.ElementType, Is.EqualTo(typeof(KeyValuePair <Slice, Slice>)));
Log(FdbQueryExpressions.ExplainSequence(expr));
}
public void Test_FdbQueryTransformExpression()
{
var expr = FdbQueryExpressions.Transform(
FdbQueryExpressions.RangeStartsWith(TuPack.EncodeKey("Hello", "World")),
(kvp) => kvp.Value.ToUnicode()
);
Log(expr);
Assert.That(expr, Is.Not.Null);
Assert.That(expr.Source, Is.Not.Null.And.InstanceOf <FdbQueryRangeExpression>());
Assert.That(expr.Transform, Is.Not.Null);
Assert.That(expr.Type, Is.EqualTo(typeof(IAsyncEnumerable <string>)));
Assert.That(expr.ElementType, Is.EqualTo(typeof(string)));
Log(FdbQueryExpressions.ExplainSequence(expr));
}
public void Test_FdbQueryIndexLookupExpression_From_Lambda()
{
var expr = FdbQueryIndexLookupExpression <int, string> .Lookup(
FooBarIndex,
(bar) => bar == "world"
);
Log(expr);
Assert.That(expr, Is.Not.Null);
Assert.That(expr.Index, Is.SameAs(FooBarIndex)); //TODO: .Index.Index does not look very nice
Assert.That(expr.Operator, Is.EqualTo(ExpressionType.Equal));
Assert.That(expr.Value, Is.Not.Null);
Assert.That(expr.Value, Is.InstanceOf <ConstantExpression>().With.Property("Value").EqualTo("world"));
Assert.That(expr.Type, Is.EqualTo(typeof(IAsyncEnumerable <int>)));
Assert.That(expr.ElementType, Is.EqualTo(typeof(int)));
Log(FdbQueryExpressions.ExplainSequence(expr));
}
