public void TypeChecker(bool derivedTypes)
{
// Arrange
var matchObject = new ChildClass1();
var noMatch = new ChildClass2();
var sameTypeCheck = ReflectionTool.TypePredicate(typeof(ChildClass1), derivedTypes);
var derivedTypeCheck = ReflectionTool.TypePredicate(typeof(BaseClass), derivedTypes);
// Act
var isSame = sameTypeCheck(matchObject);
var different = sameTypeCheck(noMatch);
var isDerived = derivedTypeCheck(matchObject);
// Assert
Assert.IsTrue(isSame, "Comparison for the same type must always return true");
Assert.IsFalse(different, "Comparison for incompatible types must return false");
Assert.AreEqual(derivedTypes, isDerived, "Comparison for derived types should only work if configured that way");
}
//[Test]
public void PropertyAccessorIsFaster()
{
// Arrange
var childType = typeof(ChildClass1);
var child1 = new ChildClass1();
var child2 = new ChildClass1();
var prop = childType.GetProperty(nameof(ChildClass1.Foo));
var accessor = ReflectionTool.PropertyAccessor <BaseClass, int>(prop);
// Run once for JIT
var value = prop.GetValue(new ChildClass1());
prop.SetValue(new ChildClass1(), 1);
accessor.ReadProperty(new ChildClass1());
accessor.WriteProperty(new ChildClass1(), 1);
// Act
var stopWatch = new Stopwatch();
stopWatch.Start();
for (int i = 0; i < 100; i++)
{
var next = (int)prop.GetValue(child1) + i;
prop.SetValue(child1, next);
}
stopWatch.Stop();
var reflection = stopWatch.ElapsedTicks;
stopWatch.Restart();
for (int i = 0; i < 100; i++)
{
var next = accessor.ReadProperty(child2) + i;
accessor.WriteProperty(child2, next);
}
stopWatch.Stop();
var accesor = stopWatch.ElapsedTicks;
// Asser
Assert.AreEqual(child1.Foo, child2.Foo);
Assert.Less(accesor, reflection, "Accessor should be faster");
}
public void PropertyAccessor()
{
// Arrange
var childType = typeof(ChildClass1);
var prop = childType.GetProperty(nameof(ChildClass1.Foo));
// Act
var accessor0 = ReflectionTool.PropertyAccessor(prop);
var child0 = new ChildClass1();
accessor0.WriteProperty(child0, 42);
var accessor1 = ReflectionTool.PropertyAccessor <IBaseInterface>(prop);
var child1 = new ChildClass1();
accessor1.WriteProperty(child1, 42);
var child2 = new ChildClass1();
accessor1.WriteProperty(child2, 42L);
var accessor2 = ReflectionTool.PropertyAccessor <BaseClass, long>(prop);
var child3 = new ChildClass1();
accessor2.WriteProperty(child3, 42L);
var accessor3 = ReflectionTool.PropertyAccessor <BaseClass, short>(prop);
var child4 = new ChildClass1();
accessor3.WriteProperty(child4, 42);
var accessor4 = ReflectionTool.PropertyAccessor <ChildClass1, int>(prop);
var child5 = new ChildClass1();
accessor4.WriteProperty(child5, 42);
// Assert
Assert.AreEqual(42, child0.Foo);
Assert.AreEqual(42, child1.Foo);
Assert.AreEqual(42, child2.Foo);
Assert.AreEqual(42, child3.Foo);
Assert.AreEqual(42, child4.Foo);
Assert.AreEqual(42, child5.Foo);
}