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/*
* TestParser.cpp
*
* Created on: Dec 22, 2012
* Author: att
*/
#include "TestParser.h"
TestParser::TestParser() {
}
TestParser::~TestParser() {
}
std::string TestParser::test_parsing_and_evaluating_logical_expressions()
{
std::string test_report = "";
std::vector<InputOutputPair> logical_inputs = prepare_logical_input();
Lexer lexer;
ContextManager context;
Parser parser(&context);
for(auto logical_case : logical_inputs)
{
auto tokens = lexer.parse_line(logical_case.first);
parser.add_tokens(tokens);
parser.interpret();
SenchaObject value = parser.program->evaluate_last();
parser.erase_all();
muu_assert("Logical value isn't correct", value.truthy == logical_case.second);
}
return test_report;
}
std::string TestParser::test_adding_new_function()
{
std::string test_report = "";
std::string function_declaration = "def print_hello(how_many_times) {";
function_declaration += " repeat(how_many_times) { print(\"Hello\");}";
ContextManager context;
Parser parser(&context);
Lexer lexer;
auto tokens = lexer.parse_line(function_declaration);
parser.add_tokens(tokens);
parser.interpret();
return test_report;
}
std::string TestParser::test_calling_funtion()
{
std::string test_report = "";
Lexer lexer;
ContextManager context;
Parser parser(&context);
std::string call_max = " max(77, 12);";
std::string declarations = prepare_some_function_declarations();
auto tokens = lexer.parse_line( declarations + call_max);
parser.add_tokens(tokens);
parser.interpret();
auto value1 = parser.program->execute();
std::string call_multiply = " multiply_string(\"banana\", 3);";
muu_assert("function max doesn't work", value1.integer == 77);
parser.erase_all();
parser.add_tokens(lexer.parse_line(declarations + call_multiply));
parser.interpret();
auto value2 = parser.program->execute();
muu_assert("function multiply_string doesn't work", value2.text == "bananabananabanana");
return test_report;
}
std::string TestParser::prepare_some_function_declarations()
{
std::string how_long_declaration = "def how_long(some_text) {";
how_long_declaration += " return len(some_text);}";
std::string max_declaration = "def max(a, b) { ";
max_declaration += "if(a > b) { return a; }";
max_declaration += "else { return b;} }";
std::string min_declaration = "def min(a, b) { ";
min_declaration += "if(a < b) return a;";
min_declaration += "else return b; }";
std::string multiply_string_declaration = "def multiply_string(text, i) {";
multiply_string_declaration += "result = \"\"; ";
multiply_string_declaration += "repeat(i) { result = result + text; }";
multiply_string_declaration += " return result;} ";
return max_declaration + min_declaration + multiply_string_declaration;
}
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 6-5 == 1", true));
return logical_inputs;
}
std::string TestParser::all_tests()
{
std::string test_report = "";
mu_run_test(test_parsing_and_evaluating_logical_expressions);
mu_run_test(test_calling_funtion);
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);
>> }
*/
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