public void RemoveAt()
{
// Arrange
ReverseCollection <int> reversedCollection = new ReverseCollection <int>(initialArray);
int indexToRemove = 2;
int itemToRemove = 3;
int[] expectedCollection = new int[4] {
5, 4, 2, 1
};
bool expectedHasItemBeforeRemoving = true;
bool actualHasItemBeforeRemoving = reversedArray.Contains(itemToRemove);
bool expectedHasItemAfterRemoving = false;
// Act
reversedCollection.RemoveAt(indexToRemove);
bool actualHasItemAfterRemoving = reversedCollection.Contains(itemToRemove);
int[] actualCollectionAfterRemoving = reversedCollection.ToArray();
// Assert
CollectionAssert.DoesNotContain(actualCollectionAfterRemoving, itemToRemove);
Assert.AreEqual(expectedHasItemBeforeRemoving, actualHasItemBeforeRemoving);
Assert.AreEqual(expectedHasItemAfterRemoving, actualHasItemAfterRemoving);
CollectionAssert.AreEqual(expectedCollection, actualCollectionAfterRemoving);
}
public void RemoveAt_WrongIndex_Exception()
{
// Arrange
ReverseCollection <int> reversedCollection = new ReverseCollection <int>(initialArray);
int wrongIndex = Convert.ToInt32(TestContext.DataRow["Index"]);
// Act
// Assert
Assert.ThrowsException <ArgumentOutOfRangeException>(() => reversedCollection.RemoveAt(wrongIndex));
}