/*
 * TestParser.cpp
 *
 *  Created on: Dec 22, 2012
 *      Author: att
 */

#include "TestParser.h"

TestParser::TestParser() {
	// TODO Auto-generated constructor stub

}

TestParser::~TestParser() {
	// TODO Auto-generated destructor stub
}

std::string TestParser::test_parsing_and_evaluating_logical_expressions()
{
	std::string test_report = "";
	std::vector<InputOutputPair> logical_inputs = prepare_logical_input();
	Lexer lexer;
	Context context;
	Parser parser(&context);
	for(auto logical_case : logical_inputs)
	{
		auto tokens = lexer.parse_line(logical_case.first);
		parser.add_tokens(tokens);
		auto value = parser.program->evaluate();
		parser.erase_all();
		muu_assert("Logical value isn't correct", value.truthy == logical_case.second);
	}
	return test_report;
}

std::vector<TestParser::InputOutputPair> TestParser::prepare_logical_input()
{
	std::vector<InputOutputPair> logical_inputs;
	logical_inputs.push_back(InputOutputPair("false and false", false));
	logical_inputs.push_back(InputOutputPair("false and true", false));
	logical_inputs.push_back(InputOutputPair("true and false", false));
	logical_inputs.push_back(InputOutputPair("true and true", true));
	logical_inputs.push_back(InputOutputPair("false or false", false));
	logical_inputs.push_back(InputOutputPair("false or true", true));
	logical_inputs.push_back(InputOutputPair("true or false", true));
	logical_inputs.push_back(InputOutputPair("true or true", true));
	logical_inputs.push_back(InputOutputPair("(true or false) and (true or false)", true));
	logical_inputs.push_back(InputOutputPair("7 + 2 > 55 or 4-5 == -1", true));

	return logical_inputs;
}

std::string TestParser::all_tests()
{
	std::string test_report = "";

	mu_run_test(test_parsing_and_evaluating_logical_expressions);


	return test_report;
}

/*TODO
 * write test of evaluating logical expression
 * possible input:
 *
 * some variable == "g" and other != "a"
 *
 * some easy expression like:
 *  if("aaa" != "bbb" and 2 < 5) {
>>     print(1);
>>     } else {
>>     print(0);
>>     }
 */