public void Should_Select_Simple_Property_Value()
{
var selector = new MemberSelector() { MemberName = "StringValue" };
var data = new Item() { StringValue = "Value1" };
Assert.Same("Value1", selector.Select(data));
}
public void Should_Select_Null_Value_On_Wrong_MemberName()
{
var selector = new MemberSelector() { MemberName = "WrongProperty" };
var data = new Item() { StringValue = "Value1" };
Assert.Same(null, selector.Select(data));
}
public void Should_Select_Child_Property_Value_In_Multiple_Items()
{
var selector = new MemberSelector() { MemberName = "Child.StringValue" };
var data = new Item[]
{
new Item() { Child = new Item() { StringValue = "Value1" } },
new Item() { Child = new Item() { StringValue = "Value2" } },
new Item() { Child = new Item() { StringValue = "Value3" } }
};
Assert.Same("Value1", selector.Select(data[0]));
Assert.Same("Value2", selector.Select(data[1]));
Assert.Same("Value3", selector.Select(data[2]));
}
public void Should_Select_MoreComplex_Property_Value()
{
var selector = new MemberSelector() { MemberName = "Child.Child.Child.StringValue" };
var data = new Item()
{
Child = new Item()
{
Child = new Item()
{
Child = new Item() { StringValue = "Value1" }
}
}
};
Assert.Same("Value1", selector.Select(data));
}
public void Should_Not_Hold_Reference_To_Object()
{
WeakReference dataRef = null;
var selector = new MemberSelector() { MemberName = "Child.StringValue" };
Action run = () =>
{
var data = new Item()
{
Child = new Item() { StringValue = "Value1" }
};
Assert.Same("Value1", selector.Select(data));
dataRef = new WeakReference(data);
};
run();
GC.Collect();
Assert.False(dataRef.IsAlive);
}
public void Should_Select_Null_Value_On_Null_Object()
{
var selector = new MemberSelector() { MemberName = "StringValue" };
Assert.Equal(null, selector.Select(null));
}
public void Should_Support_Change_Of_Target_Value()
{
var selector = new MemberSelector() { MemberName = "StringValue" };
var data = new Item()
{
StringValue = "Value1"
};
Assert.Same("Value1", selector.Select(data));
data.StringValue = "Value2";
Assert.Same("Value2", selector.Select(data));
}
public void Should_Support_Change_Of_MemberName()
{
var selector = new MemberSelector() { MemberName = "StringValue" };
var data = new Item()
{
StringValue = "Value1",
IntValue = 1
};
Assert.Same("Value1", selector.Select(data));
selector.MemberName = "IntValue";
Assert.Equal(1, selector.Select(data));
}
public void Should_Select_Target_On_Empty_MemberName()
{
var selector = new MemberSelector();
var data = new Item() { StringValue = "Value1" };
Assert.Same(data, selector.Select(data));
}