public void TestConstraintResultMessageDisplaysMissingAndExtraElements()
{
List <string> expectedCollection = new List <string>()
{
"one", "two"
};
List <string> actualCollection = new List <string>()
{
"three", "one"
};
ConstraintResult cr = new CollectionEquivalentConstraint(expectedCollection).ApplyTo(actualCollection);
TextMessageWriter writer = new TextMessageWriter();
cr.WriteMessageTo(writer);
string expectedMsg =
" Expected: equivalent to < \"one\", \"two\" >" + Environment.NewLine +
" But was: < \"three\", \"one\" >" + Environment.NewLine +
" Missing (1): < \"two\" >" + Environment.NewLine +
" Extra (1): < \"three\" >" + Environment.NewLine;
Assert.AreEqual(expectedMsg, writer.ToString());
}
public void WorksWithArrayAndHashSet()
{
var hash = new HashSet <string>(new string[] { "presto", "abracadabra", "hocuspocus" });
var array = new string[] { "abracadabra", "presto", "hocuspocus" };
var constraint = new CollectionEquivalentConstraint(array);
Assert.That(constraint.ApplyTo(hash).IsSuccess);
}
public void HonorsIgnoreCase(IEnumerable expected, IEnumerable actual)
{
var constraint = new CollectionEquivalentConstraint(expected).IgnoreCase;
var constraintResult = constraint.ApplyTo(actual);
if (!constraintResult.IsSuccess)
{
MessageWriter writer = new TextMessageWriter();
constraintResult.WriteMessageTo(writer);
Assert.Fail(writer.ToString());
}
}
public void WorksWithCollectionsOfArrays()
{
byte[] array1 = new byte[] { 0x20, 0x44, 0x56, 0x76, 0x1e, 0xff };
byte[] array2 = new byte[] { 0x42, 0x52, 0x72, 0xef };
byte[] array3 = new byte[] { 0x20, 0x44, 0x56, 0x76, 0x1e, 0xff };
byte[] array4 = new byte[] { 0x42, 0x52, 0x72, 0xef };
ICollection set1 = new SimpleObjectCollection(array1, array2);
ICollection set2 = new SimpleObjectCollection(array3, array4);
Constraint constraint = new CollectionEquivalentConstraint(set1);
Assert.That(constraint.ApplyTo(set2).IsSuccess);
set2 = new SimpleObjectCollection(array4, array3);
Assert.That(constraint.ApplyTo(set2).IsSuccess);
}
public void FailureMessageWithHashSetAndArray()
{
var hash = new HashSet <string>(new string[] { "presto", "abracadabra", "hocuspocus" });
var array = new string[] { "abracadabra", "presto", "hocusfocus" };
var constraint = new CollectionEquivalentConstraint(hash);
var constraintResult = constraint.ApplyTo(array);
Assert.IsFalse(constraintResult.IsSuccess);
TextMessageWriter writer = new TextMessageWriter();
constraintResult.WriteMessageTo(writer);
var expectedMessage =
" Expected: equivalent to < \"presto\", \"abracadabra\", \"hocuspocus\" >" + Environment.NewLine +
" But was: < \"abracadabra\", \"presto\", \"hocusfocus\" >" + Environment.NewLine +
" Missing (1): < \"hocuspocus\" >" + Environment.NewLine +
" Extra (1): < \"hocusfocus\" >" + Environment.NewLine;
Assert.That(writer.ToString(), Is.EqualTo(expectedMessage));
}
