Unit Tests - list.t

- Added listIntersect and a Boolean listDiff implementation in main.h.
- Added a set of unit tests for the above.

src/tests/list.t.cpp

@@ -0,0 +1,108 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright 2008, Paul Beckingham.  All rights reserved.
+//
+//
+////////////////////////////////////////////////////////////////////////////////
+#include <iostream>
+#include "Context.h"
+#include "main.h"
+#include "test.h"
+
+Context context;
+
+////////////////////////////////////////////////////////////////////////////////
+int main (int argc, char** argv)
+{
+  UnitTest t (24);
+
+  // 1,2,3  <=>  2,3,4
+  std::vector <std::string> string_one;
+  string_one.push_back ("1");
+  string_one.push_back ("2");
+  string_one.push_back ("3");
+
+  std::vector <std::string> string_two;
+  string_two.push_back ("2");
+  string_two.push_back ("3");
+  string_two.push_back ("4");
+
+  std::vector <std::string> string_three;
+  string_three.push_back ("2");
+  string_three.push_back ("3");
+  string_three.push_back ("4");
+
+  std::vector <std::string> string_four;
+
+  // Differences?
+  t.ok (!listDiff (string_one, string_one),   "std::string (1,2,3) == (1,2,3)");
+  t.ok (listDiff (string_one, string_two),    "std::string (1,2,3) != (2,3,4)");
+  t.ok (listDiff (string_one, string_three),  "std::string (1,2,3) != (2,3,4)");
+  t.ok (listDiff (string_one, string_four),   "std::string (1,2,3) != ()");
+  t.ok (!listDiff (string_four, string_four), "std::string () == ()");
+
+  // What are the differences?
+  std::vector<std::string> string_leftOnly;
+  std::vector<std::string> string_rightOnly;
+  listDiff (string_one, string_two, string_leftOnly, string_rightOnly);
+  t.is ((int) string_leftOnly.size (), 1, "std::string (1,2,3) <=> (2,3,4) = 1<-");
+  t.is (string_leftOnly[0], "1",          "std::string (1,2,3) <=> (2,3,4) = 1<-");
+
+  t.is ((int) string_rightOnly.size (), 1, "std::string (1,2,3) <=> (2,3,4) = ->4");
+  t.is (string_rightOnly[0], "4",          "std::string (1,2,3) <=> (2,3,4) = ->4");
+
+  // What is the intersection?
+  std::vector <std::string> string_join;
+  listIntersect (string_one, string_two, string_join);
+  t.is ((int) string_join.size (), 2, "std::string (1,2,3) intersect (2,3,4) = (2,3)");
+  t.is (string_join[0], "2",          "std::string (1,2,3) intersect (2,3,4) = (2,3)");
+  t.is (string_join[1], "3",          "std::string (1,2,3) intersect (2,3,4) = (2,3)");
+
+  // Now do it all again, with integers.
+
+  // 1,2,3  <=>  2,3,4
+  std::vector <int> int_one;
+  int_one.push_back (1);
+  int_one.push_back (2);
+  int_one.push_back (3);
+
+  std::vector <int> int_two;
+  int_two.push_back (2);
+  int_two.push_back (3);
+  int_two.push_back (4);
+
+  std::vector <int> int_three;
+  int_three.push_back (2);
+  int_three.push_back (3);
+  int_three.push_back (4);
+
+  std::vector <int> int_four;
+
+  // Differences?
+  t.ok (!listDiff (int_one, int_one),   "int (1,2,3) == (1,2,3)");
+  t.ok (listDiff (int_one, int_two),    "int (1,2,3) != (2,3,4)");
+  t.ok (listDiff (int_one, int_three),  "int (1,2,3) != (2,3,4)");
+  t.ok (listDiff (int_one, int_four),   "int (1,2,3) != ()");
+  t.ok (!listDiff (int_four, int_four), "int () == ()");
+
+  // What are the differences?
+  std::vector<int> int_leftOnly;
+  std::vector<int> int_rightOnly;
+  listDiff (int_one, int_two, int_leftOnly, int_rightOnly);
+  t.is ((int) int_leftOnly.size (), 1, "int (1,2,3) <=> (2,3,4) = 1<-");
+  t.is (int_leftOnly[0], "1",          "int (1,2,3) <=> (2,3,4) = 1<-");
+
+  t.is ((int) int_rightOnly.size (), 1, "int (1,2,3) <=> (2,3,4) = ->4");
+  t.is (int_rightOnly[0], "4",          "int (1,2,3) <=> (2,3,4) = ->4");
+
+  // What is the intersection?
+  std::vector <int> int_join;
+  listIntersect (int_one, int_two, int_join);
+  t.is ((int) int_join.size (), 2, "int (1,2,3) intersect (2,3,4) = (2,3)");
+  t.is (int_join[0], "2",          "int (1,2,3) intersect (2,3,4) = (2,3)");
+  t.is (int_join[1], "3",          "int (1,2,3) intersect (2,3,4) = (2,3)");
+
+  return 0;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+