public void TestCountReturnsNumberOfItems([Range(0, 3)] int count)
{
// Create collection
ExpressionCollection <INUnitFilterBaseElement> collection =
NUnitFilterTestHelper.CreateCollection(count, out _);
Assert.AreEqual(count, collection.Count);
}
public void TestAddWithNullItemDoesNotAddItem()
{
// Create collection
const int count = 3;
ExpressionCollection <INUnitFilterBaseElement> collection =
NUnitFilterTestHelper.CreateCollection(count, out _);
collection.Add(null);
Assert.AreEqual(count, collection.Count);
}
public void TestContainsWhenItemIsPresentReturnsTrue()
{
// Create collection
const int count = 3;
ExpressionCollection <INUnitFilterBaseElement> collection =
NUnitFilterTestHelper.CreateCollection(count, out _);
Assert.AreEqual(count, collection.Count);
bool contains = collection.Contains(collection.First());
Assert.IsTrue(contains);
}
public void TestClearWithItemsInCollection()
{
// Create collection
const int count = 3;
ExpressionCollection <INUnitFilterBaseElement> collection =
NUnitFilterTestHelper.CreateCollection(count, out _);
Assert.AreEqual(count, collection.Count);
collection.Clear();
Assert.AreEqual(0, collection.Count);
}
public void TestToXmlStringWithCollectionOfMultipleItemsReturnsCollectionXmlString(
[Values] bool withXmlTag)
{
// Create collection and expected string of xml nodes
const int count = 3;
ExpressionCollection <INUnitFilterBaseElement> collection =
NUnitFilterTestHelper.CreateCollection(count, out string innerXml);
// With tag includes parent xml tag, without is just value
string expected = withXmlTag
? NUnitFilterTestHelper.CreateXmlNode(NUnitFilterTestHelper.XmlAndTag, innerXml)
: innerXml;
Assert.AreEqual(count, collection.Count);
Assert.AreEqual(expected, collection.ToXmlString(withXmlTag));
}
public void TestAddWithNonNullItemAddsItem()
{
// Create collection and item to add
const int count = 3;
const string value = "Value_new";
const string xmlTag = "name_new";
XmlSerializableElementForTest item = new XmlSerializableElementForTest(xmlTag, value, NUnitElementType.And);
ExpressionCollection <INUnitFilterBaseElement> collection =
NUnitFilterTestHelper.CreateCollection(count, out _);
collection.Add(item);
Assert.AreEqual(count + 1, collection.Count);
Assert.AreSame(item, collection.Last());
}
public void TestContainsWhenItemIsNotPresentReturnsFalse([Values] bool isNull)
{
// Create collection and item to search
const int count = 3;
const string value = "Value_new";
const string xmlTag = "name_new";
XmlSerializableElementForTest item =
isNull ? null : new XmlSerializableElementForTest(xmlTag, value, NUnitElementType.And);
ExpressionCollection <INUnitFilterBaseElement> collection =
NUnitFilterTestHelper.CreateCollection(count, out _);
Assert.AreEqual(count, collection.Count);
bool contains = collection.Contains(item);
Assert.IsFalse(contains);
}
public void TestRemoveWhenItemIsPresentRemovesItemAndReturnsTrue()
{
// Create collection
const int count = 3;
ExpressionCollection <INUnitFilterBaseElement> collection =
NUnitFilterTestHelper.CreateCollection(count, out _);
IList <INUnitFilterBaseElement> expected = new List <INUnitFilterBaseElement>(collection);
expected.RemoveAt(0);
Assert.AreEqual(count, collection.Count);
bool removed = collection.Remove(collection.First());
Assert.IsTrue(removed);
Assert.AreEqual(count - 1, collection.Count);
CollectionAssert.AreEqual(expected, collection);
}
public void TestCopyToWithItemsInCollectionCopiesToArray([Range(0, 2)] int arrayIndex)
{
// Create collection and expected
const int count = 3;
ExpressionCollection <INUnitFilterBaseElement> collection =
NUnitFilterTestHelper.CreateCollection(count, out _);
IList <INUnitFilterBaseElement> collectionList = collection.ToList();
INUnitFilterBaseElement[] expected = new INUnitFilterBaseElement[count + arrayIndex];
for (int i = arrayIndex, j = 0; i < expected.Length; i++, j++)
{
expected[i] = collectionList[j];
}
INUnitFilterBaseElement[] array = new INUnitFilterBaseElement[count + arrayIndex];
Assert.AreEqual(count, collection.Count);
collection.CopyTo(array, arrayIndex);
CollectionAssert.AreEqual(expected, array);
}
public void TestCopyToThrowsArgumentExceptionWhenCollectionDoesNotFitInArrayLength(
[Values] bool indexOutOfRange)
{
// Create collection
const int count = 3;
ExpressionCollection <INUnitFilterBaseElement> collection =
NUnitFilterTestHelper.CreateCollection(count, out _);
// If indexOutOfRange then the array index plus collection length is longer than the array,
// otherwise the array is just not long enough to hold collection
int arrayLength = indexOutOfRange ? count : 0;
int arrayIndex = indexOutOfRange ? 1 : 0;
INUnitFilterBaseElement[] array = new INUnitFilterBaseElement[arrayLength];
Assert.Throws(
Is.TypeOf <ArgumentException>().And.Message.EqualTo(
"Destination array was not long enough." +
" Check the destination index, length, and the array's lower bounds." +
" (Parameter 'destinationArray')"),
() => collection.CopyTo(array, arrayIndex));
}
public void TestGetEnumeratorWithItemsInCollection()
{
// Create collection
const int count = 3;
ExpressionCollection <INUnitFilterBaseElement> collection =
NUnitFilterTestHelper.CreateCollection(count, out _);
IEnumerator <INUnitFilterBaseElement> enumerator = collection.GetEnumerator();
Assert.AreEqual(count, collection.Count);
Assert.IsNotNull(enumerator);
// Copy enumerator to list
IList <INUnitFilterBaseElement> copy = new List <INUnitFilterBaseElement>();
while (enumerator.MoveNext())
{
copy.Add(enumerator.Current);
}
CollectionAssert.AreEqual(collection, copy);
enumerator.Dispose();
}