44 lines
951 B
C++
44 lines
951 B
C++
#include <catch2/catch.hpp>
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#include "../src/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(zn::Lexer& lexer, std::string const& oracle)
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{
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auto node = lexer.try_next();
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INFO("expected " << oracle << " got nullptr");
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REQUIRE(nullptr != node);
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REQUIRE(oracle == node->string());
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}
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protected:
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zn::Logger m_logger;
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zn::Loc m_loc {"tests/lexer"};
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zn::Lexer m_lexer { m_logger, m_loc };
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};
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TEST_CASE_METHOD(LexerTest, "Lexer_int")
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{
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m_lexer.scan(" 3 -2 167 ");
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test_next(m_lexer, "INT[3]");
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test_next(m_lexer, "INT[-2]");
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test_next(m_lexer, "INT[167]");
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REQUIRE(nullptr == m_lexer.try_next());
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}
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TEST_CASE_METHOD(LexerTest, "Lexer_call")
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{
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m_lexer.scan(" (hello world) ");
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test_next(m_lexer, "OPAR");
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test_next(m_lexer, "IDENT[hello]");
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test_next(m_lexer, "IDENT[world]");
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test_next(m_lexer, "CPAR");
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REQUIRE(nullptr == m_lexer.try_next());
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}
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