basic generic collections implemented and tested

tests/accept/run/tlists.nim

@@ -0,0 +1,66 @@
+discard """
+  output: '''true'''
+"""
+
+import lists
+
+const
+  data = [1, 2, 3, 4, 5, 6]
+
+block SinglyLinkedListTest1:
+  var L: TSinglyLinkedList[int]
+  for d in items(data): L.prepend(d)
+  assert($L == "[6, 5, 4, 3, 2, 1]")
+  
+  assert(4 in L)
+
+block SinglyLinkedListTest2:
+  var L: TSinglyLinkedList[string]
+  for d in items(data): L.prepend($d)
+  assert($L == "[6, 5, 4, 3, 2, 1]")
+  
+  assert("4" in L)
+
+
+block DoublyLinkedListTest1:
+  var L: TDoublyLinkedList[int]
+  for d in items(data): L.prepend(d)
+  for d in items(data): L.append(d)
+  L.remove(L.find(1))
+  assert($L == "[6, 5, 4, 3, 2, 1, 2, 3, 4, 5, 6]")
+  
+  assert(4 in L)
+
+block SinglyLinkedRingTest1:
+  var L: TSinglyLinkedRing[int]
+  L.prepend(4)
+  assert($L == "[4]")
+  L.prepend(4)
+
+  assert($L == "[4, 4]")
+  assert(4 in L)
+  
+
+block DoublyLinkedRingTest1:
+  var L: TDoublyLinkedRing[int]
+  L.prepend(4)
+  assert($L == "[4]")
+  L.prepend(4)
+
+  assert($L == "[4, 4]")
+  assert(4 in L)
+  
+  L.append(3)
+  L.append(5)
+  assert($L == "[4, 4, 3, 5]")
+
+  L.remove(L.find(3))
+  L.remove(L.find(5))
+  L.remove(L.find(4))
+  L.remove(L.find(4))
+  assert($L == "[]")
+  assert(4 notin L)
+  
+
+echo "true"
+