public void DataValidationNotificationTest()
{
int NotifyCount = 0;
var testClass = new ValidationTestClass();
testClass.ErrorsChanged += (d, e) =>
{
if (e.PropertyName == nameof(testClass.ZipCode))
{
NotifyCount++;
}
};
Assert.True(testClass.HasErrors);
var errors = testClass.GetErrors(nameof(testClass.ZipCode)).OfType <string>().ToArray();
Assert.Single(errors);
Assert.Contains("Empty", errors);
Assert.Equal(0, NotifyCount);
testClass.ZipCode = " 12345";
errors = testClass.GetErrors(nameof(testClass.ZipCode)).OfType <string>().ToArray();
Assert.True(testClass.HasErrors);
Assert.Equal(2, errors.Length);
Assert.Contains("Length", errors);
Assert.Contains("Invalid", errors);
Assert.Equal(1, NotifyCount);
testClass.ZipCode = "12345";
errors = testClass.GetErrors(nameof(testClass.ZipCode)).OfType <string>().ToArray();
Assert.True(testClass.HasErrors);
Assert.Single(errors);
Assert.Contains("Length", errors);
Assert.Equal(2, NotifyCount);
testClass.ZipCode = "1234";
errors = testClass.GetErrors(nameof(testClass.ZipCode))?.OfType <string>().ToArray();
Assert.False(testClass.HasErrors);
Assert.Null(errors);
}
