fakir/tests/Lexer.cpp

91 lines
1.5 KiB
C++

#include <catch2/catch.hpp>
#include "../src/Lexer.hpp"
class LexerTest
{
public:
explicit LexerTest() {}
virtual ~LexerTest() {}
void test_next(std::string const& oracle)
{
auto node = m_lexer.next();
REQUIRE(node);
REQUIRE(oracle == node->string());
}
void test_end()
{
auto node = m_lexer.next();
REQUIRE(nullptr == node);
}
protected:
fk::Loc m_loc {"tests/lexer"};
fk::Lexer m_lexer { m_loc };
};
TEST_CASE_METHOD(LexerTest, "Lexer_int")
{
m_lexer.scan(" 34 7 -296");
test_next("INT[34]");
test_next("INT[7]");
test_next("INT[-296]");
test_end();
}
TEST_CASE_METHOD(LexerTest, "Lexer_float")
{
m_lexer.scan(" .34 7.3 -296. ");
test_next("FLOAT[0.34]");
test_next("FLOAT[7.3]");
test_next("FLOAT[-296.0]");
test_end();
}
TEST_CASE_METHOD(LexerTest, "Lexer_bool")
{
m_lexer.scan(" true false ");
test_next("BOOL[true]");
test_next("BOOL[false]");
test_end();
}
TEST_CASE_METHOD(LexerTest, "Lexer_string")
{
m_lexer.scan(" 'true ' 'false' ");
test_next("STRING['true ']");
test_next("STRING['false']");
test_end();
}
TEST_CASE_METHOD(LexerTest, "Lexer_ident")
{
m_lexer.scan(" odd? hello-world! Aze06 _gdb ");
test_next("IDENT[odd?]");
test_next("IDENT[hello-world!]");
test_next("IDENT[Aze06]");
test_next("IDENT[_gdb]");
test_end();
}
TEST_CASE_METHOD(LexerTest, "Lexer_parenthesis")
{
m_lexer.scan(" () (aze) ");
test_next("OPAR");
test_next("CPAR");
test_next("OPAR");
test_next("IDENT[aze]");
test_next("CPAR");
test_end();
}