Add simpler example: List? about junit-contracts HOT 3 CLOSED

Thanks for the comment. I will add a few tests of this simple type.

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I expanded and documented the test cases to use them as examples of how to implement the tests. Please review the documentation link at the bottom of the initial page and the associated code to see if this covers your need. List and the various implementations become very complicated very quickly and were more test code than I cared to write since I would not be using it in any project at this time.

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I understand. I find abstract examples like this (A, B, C, D) difficult to understand, so my eyes glaze over when I see them. Others might find them useful.

To use List as an example doesn't require complete contract coverage. A few examples like these would give people the idea:

class EmptyListContract:
  list = createEmptyList(); // abstract
  testIsEmpty:
    assertTrue(list.isEmpty())
    assertEquals(0, list.size())

  testIteratorHasNoElements
    assertFalse(list.iterator().hasNext());
    try {
      list.iterator().next();
      fail("How did you get a next element?!");
    }
    catch (NoSuchElementException expected) {}

  testCannotGetElement:
    try {
      list.get(0);
      fail("How did you get the first element of an empty list?!");
    }
    catch (IndexOutOfBoundsException expected) {}

  testToArray:
    assertArraysEquals(new Object[0], list.toArray(new Object[0]));

That would be enough for people to get the idea, I think.

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