public void ShouldThrowExceptionIfAccessorRefersToNonProperty_HasChanges()
{
var detector = new TestEntityChangeDetector();
TestEntity original = new TestEntity();
TestEntity updated = new TestEntity();
detector.HasChange(e => e.Field, original, updated);
}
public void ShouldReturnFalseIfCheckingIfUnconfiguredPropertyChanged()
{
var detector = new TestEntityChangeDetector();
TestEntity original = new TestEntity();
TestEntity updated = new TestEntity();
bool hasChange = detector.HasChange(a => a.NotConfigured, original, updated);
Assert.IsFalse(hasChange, "A change should not be detected if the property is not recognized.");
}
public void ShouldThrowExceptionIfAccessorNull_HasChanges()
{
var detector = new TestEntityChangeDetector();
TestEntity original = new TestEntity();
TestEntity updated = new TestEntity();
Expression <Func <TestEntity, int> > accessor = null;
detector.HasChange(accessor, original, updated);
}
public void ShouldDetectAllChanges()
{
var detector = new TestEntityChangeDetector();
TestEntity original = new TestEntity()
{
BooleanValue = false,
DateTimeValue = new DateTime(2015, 07, 29),
GuidValue = Guid.NewGuid(),
IntValue = 123,
MoneyValue = 12.34m,
PercentValue = 12.5m,
StringValue = "Hello"
};
TestEntity updated = new TestEntity()
{
BooleanValue = true,
DateTimeValue = new DateTime(2015, 07, 30),
GuidValue = Guid.NewGuid(),
IntValue = 234,
MoneyValue = 10m,
PercentValue = 15m,
StringValue = "Goodbye"
};
Assert.IsTrue(detector.HasChange(e => e.BooleanValue, original, updated), "Boolean value should be changed.");
Assert.IsTrue(detector.HasChange(e => e.DateTimeValue, original, updated), "DateTime value should be changed.");
Assert.IsTrue(detector.HasChange(e => e.GuidValue, original, updated), "Guid value should be changed.");
Assert.IsTrue(detector.HasChange(e => e.IntValue, original, updated), "Int value should be changed.");
Assert.IsTrue(detector.HasChange(e => e.MoneyValue, original, updated), "Money value should be changed.");
Assert.IsTrue(detector.HasChange(e => e.PercentValue, original, updated), "Percent value should be changed.");
Assert.IsTrue(detector.HasChange(e => e.StringValue, original, updated), "String value should be changed.");
var changes = detector.GetChanges(original, updated);
Assert.AreEqual(7, changes.Count(), "The wrong number of changes were detected.");
}