143 lines
4.0 KiB
C++
143 lines
4.0 KiB
C++
/*
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* TestParser.cpp
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*
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* Created on: Dec 22, 2012
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* Author: att
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*/
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#include "TestParser.h"
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TestParser::TestParser() {
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}
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TestParser::~TestParser() {
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}
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std::string TestParser::test_parsing_and_evaluating_logical_expressions()
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{
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std::string test_report = "";
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std::vector<InputOutputPair> logical_inputs = prepare_logical_input();
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Lexer lexer;
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ContextManager context;
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Parser parser(&context);
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for(auto logical_case : logical_inputs)
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{
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auto tokens = lexer.parse_line(logical_case.first);
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parser.add_tokens(tokens);
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parser.interpret();
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SenchaObject value = parser.program->evaluate_last();
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parser.erase_all();
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muu_assert("Logical value isn't correct", value.truthy == logical_case.second);
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}
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return test_report;
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}
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std::string TestParser::test_adding_new_function()
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{
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std::string test_report = "";
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std::string function_declaration = "def print_hello(how_many_times) {";
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function_declaration += " repeat(how_many_times) { print(\"Hello\");}";
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ContextManager context;
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Parser parser(&context);
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Lexer lexer;
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auto tokens = lexer.parse_line(function_declaration);
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parser.add_tokens(tokens);
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parser.interpret();
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return test_report;
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}
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std::string TestParser::test_calling_funtion()
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{
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std::string test_report = "";
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Lexer lexer;
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ContextManager context;
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Parser parser(&context);
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std::string call_max = " max(77, 12);";
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std::string declarations = prepare_some_function_declarations();
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auto tokens = lexer.parse_line( declarations + call_max);
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parser.add_tokens(tokens);
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parser.interpret();
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auto value1 = parser.program->execute();
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std::string call_multiply = " multiply_string(\"banana\", 3);";
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muu_assert("function max doesn't work", value1.integer == 77);
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parser.erase_all();
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parser.add_tokens(lexer.parse_line(declarations + call_multiply));
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parser.interpret();
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auto value2 = parser.program->execute();
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muu_assert("function multiply_string doesn't work", value2.text == "bananabananabanana");
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return test_report;
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}
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std::string TestParser::prepare_some_function_declarations()
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{
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std::string how_long_declaration = "def how_long(some_text) {";
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how_long_declaration += " return len(some_text);}";
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std::string max_declaration = "def max(a, b) { ";
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max_declaration += "if(a > b) { return a; }";
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max_declaration += "else { return b;} }";
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std::string min_declaration = "def min(a, b) { ";
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min_declaration += "if(a < b) return a;";
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min_declaration += "else return b; }";
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std::string multiply_string_declaration = "def multiply_string(text, i) {";
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multiply_string_declaration += "result = \"\"; ";
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multiply_string_declaration += "repeat(i) { result = result + text; }";
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multiply_string_declaration += " return result;} ";
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return max_declaration + min_declaration + multiply_string_declaration;
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}
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std::vector<TestParser::InputOutputPair> TestParser::prepare_logical_input()
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{
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std::vector<InputOutputPair> logical_inputs;
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logical_inputs.push_back(InputOutputPair("false and false", false));
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logical_inputs.push_back(InputOutputPair("false and true", false));
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logical_inputs.push_back(InputOutputPair("true and false", false));
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logical_inputs.push_back(InputOutputPair("true and true", true));
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logical_inputs.push_back(InputOutputPair("false or false", false));
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logical_inputs.push_back(InputOutputPair("false or true", true));
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logical_inputs.push_back(InputOutputPair("true or false", true));
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logical_inputs.push_back(InputOutputPair("true or true", true));
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logical_inputs.push_back(InputOutputPair("(true or false) and (true or false)", true));
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logical_inputs.push_back(InputOutputPair("7 + 2 > 55 or 6-5 == 1", true));
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return logical_inputs;
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}
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std::string TestParser::all_tests()
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{
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std::string test_report = "";
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mu_run_test(test_parsing_and_evaluating_logical_expressions);
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mu_run_test(test_calling_funtion);
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return test_report;
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}
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/*TODO
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* write test of evaluating logical expression
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* possible input:
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*
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* some variable == "g" and other != "a"
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*
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* some easy expression like:
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* if("aaa" != "bbb" and 2 < 5) {
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>> print(1);
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>> } else {
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>> print(0);
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>> }
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*/
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