87 lines
1.5 KiB
C++
87 lines
1.5 KiB
C++
#include <catch2/catch.hpp>
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#include "../lib/Lexer.hpp"
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class LexerTest
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{
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public:
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explicit LexerTest() {}
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virtual ~LexerTest() {}
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void test_next(wg::Lexer& lexer, std::string const& oracle)
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{
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auto n = lexer.next();
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REQUIRE(nullptr != n);
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REQUIRE(oracle == n->string());
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}
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void test_end(wg::Lexer& lexer)
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{
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auto n = lexer.next();
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REQUIRE(nullptr == n);
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}
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protected:
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};
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TEST_CASE_METHOD(LexerTest, "Lexer_")
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{
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wg::Lexer lex;
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lex.scan(" # canard #canard");
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test_next(lex, "HASH");
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test_next(lex, "IDENT[canard]");
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test_next(lex, "HASH");
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test_next(lex, "IDENT[canard]");
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test_end(lex);
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}
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TEST_CASE_METHOD(LexerTest, "Lexer_int_literal")
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{
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wg::Lexer lex;
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lex.scan(" 3 -2 78 ");
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test_next(lex, "INT[3]");
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test_next(lex, "INT[-2]");
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test_next(lex, "INT[78]");
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test_end(lex);
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}
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TEST_CASE_METHOD(LexerTest, "Lexer_int_arith")
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{
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wg::Lexer lex;
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lex.scan(" +-*/% ()");
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test_next(lex, "ADD");
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test_next(lex, "SUB");
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test_next(lex, "MUL");
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test_next(lex, "DIV");
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test_next(lex, "MOD");
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test_next(lex, "OPAR");
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test_next(lex, "CPAR");
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test_end(lex);
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}
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TEST_CASE_METHOD(LexerTest, "Lexer_fun_call")
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{
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wg::Lexer lex;
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lex.scan(" , int extern ");
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test_next(lex, "COMMA");
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test_next(lex, "TYPE[int]");
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test_next(lex, "EXTERN");
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test_end(lex);
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}
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TEST_CASE_METHOD(LexerTest, "Lexer_pkg_namespace")
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{
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wg::Lexer lex;
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lex.scan(" . ");
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test_next(lex, "DOT");
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test_end(lex);
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}
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TEST_CASE_METHOD(LexerTest, "Lexer_as")
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{
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wg::Lexer lex;
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lex.scan(" as ");
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test_next(lex, "AS");
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test_end(lex);
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}
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