def test_constructor(self):
# default constructor
try:
arrayListDefault = ArrayList()
print("test_constructor: PASS default")
except:
print("test_constructor: FAIL default")
# constructor with data
try:
arrayListData = ArrayList([0, 1, 2])
print("test_constructor: PASS constructor with data")
except:
print("test_constructor: FAIL constructor with data")
def test_at(self):
testArrayList = ArrayList("first")
# at first position
self.assertEquals(testArrayList.at(0), "first")
# at negative position
try:
atNegativePos = testArrayList.at(-2)
print("test_at: FAIL .at() negative position")
except:
print("test_at: PASS .at() negative position")
# at position greater than max
try:
atLargerSize = testArrayList.at(5)
print("test_at: FAIL .at() position greater than max")
except:
print("test_at: PASS .at() position greater than max")
def test_is_empty(self):
# is empty
arrayListEmpty = ArrayList()
self.assertTrue(arrayListEmpty.is_empty())
# is not empty
arrayListNotEmpty = ArrayList([0])
self.assertFalse(arrayListNotEmpty.is_empty())
def test_size(self):
# default size
arrayListEmpty = ArrayList()
self.assertEquals(arrayListEmpty.size(), 0)
# same element type
arrayListContents = ArrayList([0, 1, 2])
self.assertEquals(arrayListContents.size(), 3)
def test_replace(self):
testArrayList = ArrayList()
# replace empty
try:
testArrayList.replace(0, 10)
print("test_replace: FAIL empty")
except:
print("test_replace: PASS empty")
testArrayList.append(0)
testArrayList.append(1)
testArrayList.append(2)
# replace value
testArrayList.replace(1, 10)
self.assertEquals(testArrayList.at(1), 10)
# replace different type
self.assertRaises(TypeError, testArrayList.replace(1, "ten"))
def test_insert(self):
testArrayList = ArrayList()
# insert out of bounds
try:
testArrayList.insert(5, "can't do this")
print("test_insert: FAIL out of bounds")
except:
print("test_insert: PASS out of bounds")
# insert on empty
testArrayList.insert(0, "first")
self.assertEquals(testArrayList.at(0), "first")
# insert after
testArrayList.insert(1, "second")
self.assertEquals(testArrayList.at(1), "second")
# insert before
testArrayList.insert(0, "third")
self.assertEquals(testArrayList.at(0), "third")
self.assertEquals(testArrayList.at(1), "first")
self.assertEquals(testArrayList.at(2), "second")
# insert different type
self.assertRaises(TypeError, testArrayList.insert(1, 10))
def test_append(self):
testArrayList = ArrayList()
# append
testArrayList.append(0)
self.assertEquals(testArrayList.size(), 1)
def test_clear(self):
arrayList = ArrayList([1])
arrayList.clear()
self.assertEquals(arrayList.size(), 0)
def test_remove(self):
testArrayList = ArrayList()
# remove empty
try:
testArrayList.remove(1)
print("test_remove: FAIL empty")
except:
print("test_remove: PASS empty")
testArrayList.append(0)
testArrayList.append(1)
testArrayList.append(2)
# remove out of bounds
try:
testArrayList.remove(5)
print("test_remove: FAIL out of bounds")
except:
print("test_remove: PASS out of bounds")
# remove at position
testArrayList.remove(1)
self.assertEquals(testArrayList.size(), 2)
self.assertEquals(testArrayList.at(1), 2)