88 lines
1.8 KiB
C++
88 lines
1.8 KiB
C++
#include <catch2/catch.hpp>
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#include "../lib/Factory.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(sk::Lexer& lexer, std::string const& oracle)
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{
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auto token = lexer.next();
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REQUIRE(token);
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REQUIRE(oracle == token->string());
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}
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void test_end(sk::Lexer& lexer)
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{
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auto token = lexer.next();
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REQUIRE(nullptr == token);
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}
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protected:
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sk::Logger m_logger;
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sk::Factory m_factory {"tests/lexer", m_logger};
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};
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TEST_CASE_METHOD(LexerTest, "Lexer_unknown_token")
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{
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auto lexer = m_factory.make_lexer();
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lexer->scan(" § ");
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REQUIRE_THROWS_AS(lexer->next(), sk::lexical_error);
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}
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TEST_CASE_METHOD(LexerTest, "Lexer_int")
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{
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auto lexer = m_factory.make_lexer();
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lexer->scan(" 47 29 3 ");
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test_next(*lexer, "INT[47]");
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test_next(*lexer, "INT[29]");
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test_next(*lexer, "INT[3]");
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test_end(*lexer);
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}
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TEST_CASE_METHOD(LexerTest, "Lexer_float")
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{
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auto lexer = m_factory.make_lexer();
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lexer->scan(" 27.0 3.33 ");
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test_next(*lexer, "FLOAT[27.0]");
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test_next(*lexer, "FLOAT[3.33]");
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test_end(*lexer);
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}
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TEST_CASE_METHOD(LexerTest, "Lexer_bools")
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{
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auto lexer = m_factory.make_lexer();
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lexer->scan(" true false ");
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test_next(*lexer, "BOOL[true]");
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test_next(*lexer, "BOOL[false]");
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test_end(*lexer);
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}
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TEST_CASE_METHOD(LexerTest, "Lexer_string")
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{
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auto lexer = m_factory.make_lexer();
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lexer->scan(" ' true' 'false ' 'both' ");
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test_next(*lexer, "STRING[' true']");
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test_next(*lexer, "STRING['false ']");
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test_next(*lexer, "STRING['both']");
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test_end(*lexer);
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}
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TEST_CASE_METHOD(LexerTest, "Lexer_comments")
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{
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auto lexer = m_factory.make_lexer();
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lexer->scan(" ' true' ;; 'false ' \n 'both' ");
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test_next(*lexer, "STRING[' true']");
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test_next(*lexer, "STRING['both']");
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test_end(*lexer);
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}
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