public void GetPropertyGetter_AnonymousObjectProperty_ReturnsPropertyValue()
{
var input = new
{
A = "aye",
B = "bee",
C = "sea",
One = 1,
Two = 2,
Three = 3,
Do = "doe",
Re = "ray",
Mi = "me"
};
var propertyInfo = input.GetType().GetProperty("Two");
Assert.NotNull(propertyInfo);
GetterDelegate getter = DynamicMethodGenerator.GetPropertyGetter(propertyInfo);
Assert.NotNull(getter);
Assert.Equal(2, getter(input));
}
public void GetPropertyGetter_NullInput_ThrowsArgumentNullException()
{
ArgumentNullException ex = Assert.Throws <ArgumentNullException>(
delegate()
{
GetterDelegate getter = DynamicMethodGenerator.GetPropertyGetter(null);
});
Assert.Equal("propertyInfo", ex.ParamName);
}
public void GetPropertyGetter_SetterOnlyProperty_ReturnsPropertyValue()
{
var input = new Example();
var propertyInfo = input.GetType().GetProperty("Three_Setter");
Assert.NotNull(propertyInfo);
GetterDelegate getter = DynamicMethodGenerator.GetPropertyGetter(propertyInfo);
Assert.Null(getter);
}
public void GetPropertyGetter_PrivateGetterProperty_ReturnsPropertyValue()
{
var input = new Example();
var propertyInfo = input.GetType().GetProperty("Mi");
Assert.NotNull(propertyInfo);
GetterDelegate getter = DynamicMethodGenerator.GetPropertyGetter(propertyInfo);
Assert.NotNull(getter);
Assert.Equal("me", getter(input));
}
/// <summary>
/// Creates a field getter delegate for the specified property or field
/// </summary>
/// <param name="memberInfo">PropertyInfo or FieldInfo</param>
/// <returns>GetterDelegate for property or field, null otherwise</returns>
/// <remarks>
/// Note: use with caution this method will expose private and protected constructors without safety checks.
/// </remarks>
public static GetterDelegate GetGetter(MemberInfo memberInfo)
{
if (memberInfo is PropertyInfo)
{
return(DynamicMethodGenerator.GetPropertyGetter((PropertyInfo)memberInfo));
}
if (memberInfo is FieldInfo)
{
return(DynamicMethodGenerator.GetFieldGetter((FieldInfo)memberInfo));
}
return(null);
}
public void GetPropertyGetter_1MillionPropertyGets_PerformsInAround10ms()
{
Example instance = new Example();
PropertyInfo propertyInfo = typeof(Example).GetProperty("A", BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.FlattenHierarchy);
GetterDelegate getter = DynamicMethodGenerator.GetPropertyGetter(propertyInfo);
string value = null;
for (long i = 0; i < MaxCount; i++)
{
value = (string)getter(instance);
}
}
public void GetPropertyGetter_StaticProperty_ChangesFieldValue()
{
var propertyInfo = typeof(Example).GetProperty("Solo");
Assert.NotNull(propertyInfo);
GetterDelegate getter = DynamicMethodGenerator.GetPropertyGetter(propertyInfo);
Assert.NotNull(getter);
var actual = getter(null);
Assert.Equal("Single", Example.Solo);
}
public void GetPropertyGetter_PrivateProperty_ReturnsPropertyValue()
{
var input = new Example();
var propertyInfo = input.GetType().GetProperty("Two", BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.FlattenHierarchy);
Assert.NotNull(propertyInfo);
GetterDelegate getter = DynamicMethodGenerator.GetPropertyGetter(propertyInfo);
Assert.NotNull(getter);
Assert.Equal(2, getter(input));
}