forked from KPGPMC/furlang
78 lines
2.6 KiB
C++
78 lines
2.6 KiB
C++
// NOLINTBEGIN(readability-identifier-naming)
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#include "furc/front/lexer.hpp"
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#include "gtest/gtest.h"
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#include <string>
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namespace {
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using namespace furc::front;
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using namespace std::string_view_literals;
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using namespace std::string_literals;
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using lexer_case = std::pair<std::string, std::vector<token_r>>;
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class LexerTestingFixture : public testing::TestWithParam<lexer_case> {};
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TEST_P(LexerTestingFixture, LexerTest) {
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auto [code, expected] = GetParam();
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lexer lexer("<TEMP>", code);
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auto it = expected.begin();
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while (it != expected.end()) {
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const auto& expected = *it++;
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EXPECT_EQ(lexer.next_token(), expected);
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}
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auto eof = std::move(lexer.next_token());
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ASSERT_TRUE(eof.has_error());
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ASSERT_EQ(eof.error().type, token_error_t::EndOfFile);
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}
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furc::location loc(size_t col, size_t line) {
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return furc::location{ "<TEMP>", line, col };
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}
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INSTANTIATE_TEST_SUITE_P(EmptyTests,
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LexerTestingFixture,
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testing::Values(lexer_case("", {}), lexer_case(" ", {}), lexer_case("\t", {}), lexer_case("\n", {})));
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INSTANTIATE_TEST_SUITE_P(Comments,
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LexerTestingFixture,
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testing::Values(lexer_case("(/** skibidi **/func{//)\n}",
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{ { loc(0, 0), token_t::LParen },
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{ loc(16, 0), keyword_token::Func },
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{ loc(20, 0), token_t::LBrace },
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{ loc(0, 1), token_t::RBrace } })));
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INSTANTIATE_TEST_SUITE_P(Integers,
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LexerTestingFixture,
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testing::Values(lexer_case("67 6\n7", { { loc(0, 0), 67 }, { loc(3, 0), 6 }, { loc(0, 1), 7 } }),
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lexer_case("18446744073709551615\n18446744073709551616",
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{ { loc(0, 0), 18446744073709551615ULL },
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token_r(
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token_error{ loc(0, 1), token_error_t::IntegerOverflow, std::string("18446744073709551616") }) })));
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INSTANTIATE_TEST_SUITE_P(Tokens,
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LexerTestingFixture,
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testing::Values(lexer_case("()\n\t\t{\n}[\"shto-to\"]; :,.main return func",
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{ { loc(0, 0), token_t::LParen },
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{ loc(1, 0), token_t::RParen },
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{ loc(2, 1), token_t::LBrace },
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{ loc(0, 2), token_t::RBrace },
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{ loc(1, 2), token_t::LBracket },
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{ loc(2, 2), token_t::String, "shto-to"sv },
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{ loc(10, 2), token_t::RBracket },
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{ loc(11, 2), token_t::Semicolon },
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{ loc(15, 2), token_t::Colon },
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{ loc(16, 2), token_t::Comma },
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{ loc(17, 2), token_t::Dot },
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{ loc(18, 2), token_t::Identifier, "main"sv },
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{ loc(23, 2), keyword_token::Return },
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{ loc(30, 2), keyword_token::Func } })));
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} // namespace
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// NOLINTEND(readability-identifier-naming)
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