public void ProjectProperties_ProjectFullInstance_ReturnsAllProperties()
{
//prepare
var instance = new QueryTranslatorTestClass();
var expression = instance.CreateExpression(t => t);
//act
var projection = _projector.ProjectProperties(expression);
//assert
projection.ReturnType.Should().Be.EqualTo(typeof(QueryTranslatorTestClass));
projection.SelectedProperties.Should().Have.SameSequenceAs(_properties);
projection.Projection.DynamicInvoke(instance).Should().Be.SameInstanceAs(instance);
}
public void ProjectProperties_ProjectSingleProperty_ReturnsProjectedProperties()
{
//prepare
var instance = new QueryTranslatorTestClass {
Property2 = "p2"
};
var expression = instance.CreateExpression(t => t.Property2);
//act
var projection = _projector.ProjectProperties(expression);
//assert
projection.ReturnType.Should().Be.EqualTo(typeof(string));
projection.SelectedProperties.Count.Should().Be.EqualTo(1);
projection.SelectedProperties.Should().Contain(new KeyValuePair <string, string>("Property2", "y"));
projection.Projection.DynamicInvoke(instance).Should().Be.EqualTo("p2");
}
public void ProjectProperties_ProjectAnonymousInstance_ReturnsProjectedProperties()
{
//prepare
var instance = new QueryTranslatorTestClass {
Property1 = "p1"
};
var expression =
instance.CreateExpression(t => new { t.Property1, t.Property2, t.Property3, t.Property4, t.Property5 });
//act
var projection = _projector.ProjectProperties(expression);
//assert
projection.ReturnType.IsAnonymous().Should().Be.True();
projection.SelectedProperties.Count.Should().Be.EqualTo(5);
projection.Projection.DynamicInvoke(instance).PropertyValue <string>("Property1").Should().Be.EqualTo("p1");
}
public void ProjectProperties_ProjectNewInstance_ReturnsProjectedProperties()
{
//prepare
var instance = new QueryTranslatorTestClass {
Property1 = "p1"
};
var expression = instance.CreateExpression(t => new QueryTranslatorTestClass {
Property1 = t.Property1
});
//act
var projection = _projector.ProjectProperties(expression);
//assert
projection.ReturnType.Should().Be.EqualTo(typeof(QueryTranslatorTestClass));
projection.SelectedProperties.Count.Should().Be.EqualTo(1);
projection.SelectedProperties.Should().Contain(new KeyValuePair <string, string>("Property1", "x"));
projection.Projection.DynamicInvoke(instance)
.As <QueryTranslatorTestClass>().Property1.Should().Be.EqualTo("p1");
}
