/* settest.cpp -- Matt Mahoney, mmahoney@cs.fit.edu

Test code for Set<T> in assignment 4 of http://cs.fit.edu/~mmahoney/cse2050/

Usage: settest [file [word]]

When run with no arguments, tests all set operations.
With a file name argument, it also reads the words
of a file into a Set<string> and the word lengths into a Set<int>
and prints them.  When a word is given as the second argument, tests
whether that word is in the file.  For example, if the file "test.txt"
contains "this is a test", then

  settest test.txt this

should produce the following output:

Words in test.txt = {a,is,test,this}
Word lengths = {1,2,4}
3 lengths and 4 different words
this is in test.txt

Output should be as follows:
{}{1}{1,2}{1,2,3}{1,2,3,4,5}
{1}{2,3}{1,2,3}{1}{}{}{}
{}{1,2}{2}{2}

Actual output is:
{}{1}{1,2}{1,2,3}{1,2,3,4,5}
{1}{2,3}{1,2,3}{1}{}{}{}
{}{1,2}{2}{2}

Next 7 tests should pass
Test 1 passes
Test 2 passes
Test 3 passes
Test 4 passes
Test 5 passes
Test 6 passes
Test 7 passes

*/

#include <iostream>
#include <fstream>
#include <string>
#include "set.h"   // Your file goes here
using namespace std;

// Pass test n if x < y
#define test(x, y, n) \
  if (x <= y && x < y && x != y && !(x == y) && !(x >= y) && !(x > y) \
      && !(y <= x) && !(y < x) && y != x && !(y == x) && y >= x && y > x) \
    cout << "Test " << n << " passes\n"; \
  else \
    cout << "Test " << n << " fails\n"; \

// Pass test n if x == y
#define testeq(x, y, n) \
  if (x == y && !(y != x) && x <= y && x >= y && !(x < y) && !(x > y)) \
    cout << "Test " << n << " passes\n"; \
  else \
    cout << "Test " << n << " fails\n"; \

// Usage: settest filename word
int main(int argc, char** argv) {

  // Read a file into sets of words and their lengths
  if (argc>1) {
    ifstream f(argv[1]);
    if (f) {
      Set<string> ss;
      Set<int> si;
      string s;
      while (f >> s) {
        ss += s;
        si = int(s.size()) + si;
      }

      // Print the sets and their sizes
      cout << "Words in " << argv[1] << " = " << ss << endl;
      cout << "Word lengths = " << si << endl;
      cout << si.size() << " lengths and " << ss.size()
        << " different words\n";

      // Print whether the word is found
      if (argc>2) {
        if (ss.in(argv[2]))
          cout << argv[2] << " is in " << argv[1] << endl;
        else
          cout << argv[2] << " is not in " << argv[1] << endl;
      }

      // Test set subtraction
      ss -= ss;
      si = si - si;
      if (ss.size()!=0 || si.size()!=0)
        cout << "Set subtraction test fails\nss=" << ss << " si=" << si
          << endl;
    }
    else
      cout << "File not found: " << argv[1] << endl;
  }

  // Test constructors, +, -, *
  cout << "\nOutput should be as follows:\n"
    "{}{1}{1,2}{1,2,3}{1,2,3,4,5}\n"
    "{1}{2,3}{1,2,3}{1}{}{}{}\n"
    "{}{1,2}{2}{2}\n\n"
    "Actual output is:\n";
  const Set<int> null, s1=1, s12=s1+2, s123(3+s12);  // Test union
  cout << null << s1 << s12 << s123 << 5+null+4+s123 << endl;
                           // {}{1}{1,2}{1,2,3}{1,2,3,4,5}
  cout << s12-2 << s123-s1 << s123-null << 1-null << null-null << null-s1
       << null-4 << endl;  // {1}{2,3}{1,2,3}{1}{}{}{}
  cout << null*s1 << s123*s12 << s123*2 << 2*s123 << endl; // {}{1,2}{2}{2}

  // Test comparison operators and some more expressions
  cout << "\nNext 7 tests should pass\n";
  test(s1, s12, 1);
  test(null, 1, 2);
  test(1, s12, 3);
  test(1-null, s123-2, 4);
  test(3*s123, s123-1, 5);
  testeq(s12+3, s123+4-4, 6);
  testeq((Set<int>(4)+3+2+1-4+5)*(6+s12), s12, 7)

  return 0;
}