public void RecordsDoNotUseDuckTyping()
{
var recordType1 = new MyRecordType {
IntProperty = 42, StringProperty = "foo"
};
var recordType2 = new ImmutableRecordType {
IntProperty = 42, StringProperty = "foo"
};
Assert.That(recordType1.Equals(recordType2), Is.False);
//The compiler already knows that these two records are different types,
//so the following line results in a compiler error.
//Assert.That(recordType1 == recordType2, Is.False);
}
public void ShallowPropertyEquality()
{
var firstRecord = new MyRecordType {
IntProperty = 42, StringProperty = "foo"
};
var secondRecord = new MyRecordType {
IntProperty = 42, StringProperty = "foo"
};
Assert.That(firstRecord.Equals(secondRecord), Is.EqualTo(true));
Assert.That(firstRecord == secondRecord, Is.True);
Assert.That(firstRecord.GetHashCode(), Is.EqualTo(secondRecord.GetHashCode()));
//You can mess up Equality and GetHashCode if you try, but
//by default they will work like your record type is a value type.
}