73 lines
1.8 KiB
C++
73 lines
1.8 KiB
C++
#include <catch2/catch.hpp>
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#include "../lib/Lexer.hpp"
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#include "../lib/Parser.hpp"
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#include "lib/SrcLoc.hpp"
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#include "lib/StatusLog.hpp"
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class ParserTest
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{
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public:
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explicit ParserTest() {}
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virtual ~ParserTest() {}
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void test_node(std::string const& oracle, std::string const& source)
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{
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roza::SrcLoc loc {"parser_tests"};
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roza::StatusLog log;
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roza::Lexer lexer {log, loc};
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roza::Parser parser {lexer, log};
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lexer.scan(source);
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auto node = parser.parse();
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REQUIRE(oracle == node->string());
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}
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void test_node_err(std::string const& oracle)
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{
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roza::SrcLoc loc {"parser_tests"};
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roza::StatusLog log;
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roza::Lexer lexer {log, loc};
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roza::Parser parser {lexer, log};
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lexer.scan(oracle);
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REQUIRE_THROWS(parser.parse());
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}
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protected:
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};
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TEST_CASE_METHOD(ParserTest, "Parser_integers")
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{
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test_node("PROG", "");
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test_node("PROG(INT[27])", " 27 ");
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test_node("PROG(INT[27])", " 27 ");
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test_node("PROG(INT[27],"
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"INT[9],"
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"USUB(INT[99]))", "27 \n 9 \n -99");
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test_node_err("32 14 -12");
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}
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TEST_CASE_METHOD(ParserTest, "Parser_int_arith")
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{
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test_node("PROG(ADD(ADD(INT[1],INT[2]),INT[3]))", "1 + 2 + 3");
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test_node("PROG(SUB(SUB(INT[1],INT[2]),INT[3]))", "1 - 2 - 3");
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test_node("PROG(ADD(INT[1],MUL(INT[2],INT[3])))", "1 + 2 * 3");
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test_node("PROG(MUL(ADD(INT[1],INT[2]),INT[3]))", "(1 + 2) * 3");
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test_node("PROG(SUB(INT[1],DIV(INT[2],INT[3])))", "1 - 2 / 3");
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test_node("PROG(DIV(SUB(INT[1],INT[2]),INT[3]))", "(1 - 2) / 3");
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test_node("PROG(ADD(INT[1],MOD(INT[2],INT[3])))", "1 + 2 % 3");
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test_node("PROG(ADD(USUB(INT[2]),INT[3]))", "-2 + 3");
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test_node("PROG(ADD(UADD(INT[2]),INT[3]))", "+ 2 + 3");
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test_node("PROG(USUB(ADD(INT[2],INT[3])))", " -(2 + 3)");
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test_node("PROG(USUB(POW(INT[2],INT[7])))", " -2^7 ");
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}
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