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/*
* Copyright (C) 2023 Carlos Maniero
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#define MUNIT_ENABLE_ASSERT_ALIASES
#include "lexer.h"
#include "munit.h"
void
make_lexer_from_static_src(lexer_t *lexer, char *src)
{
lexer->srclen = 0;
lexer->cur = 0;
lexer->row = 0;
lexer->bol = 0;
lexer->src = src;
lexer->srclen = strlen(src);
}
void
assert_token_at(char *source, int token_index, token_kind_t expected_kind, char *expected)
{
lexer_t lexer;
token_t token;
make_lexer_from_static_src(&lexer, source);
while (token_index > 0) {
lexer_next_token(&lexer, &token);
token_index--;
}
lexer_next_token(&lexer, &token);
char actual[token.value.size + 1];
string_view_to_str(&token.value, actual);
assert_string_equal(token_kind_to_str(expected_kind), token_kind_to_str(token.kind));
assert_int(expected_kind, ==, token.kind);
assert_string_equal(expected, actual);
}
void
assert_keyword(char *source, token_kind_t expected_kind)
{
assert_token_at(source, 0, expected_kind, source);
}
static MunitResult
test_tokenize_keywords(const MunitParameter params[], void *user_data_or_fixture)
{
assert_keyword("return", TOKEN_KEYWORD_RETURN);
assert_keyword("fn", TOKEN_KEYWORD_FN);
assert_keyword("let", TOKEN_KEYWORD_LET);
return MUNIT_OK;
}
static MunitResult
test_tokenize_number(const MunitParameter params[], void *user_data_or_fixture)
{
assert_token_at("1", 0, TOKEN_NUMBER, "1");
assert_token_at(" 13 ", 0, TOKEN_NUMBER, "13");
assert_token_at(" \n 13 ", 0, TOKEN_NUMBER, "13");
return MUNIT_OK;
}
static MunitResult
test_tokenize_name(const MunitParameter params[], void *user_data_or_fixture)
{
assert_token_at("myname", 0, TOKEN_NAME, "myname");
assert_token_at("my_name", 0, TOKEN_NAME, "my_name");
assert_token_at("myname2", 0, TOKEN_NAME, "myname2");
return MUNIT_OK;
}
static MunitResult
test_tokenize_op(const MunitParameter params[], void *user_data_or_fixture)
{
assert_token_at(" + 2", 0, TOKEN_PLUS, "+");
assert_token_at(" - \n", 0, TOKEN_MINUS, "-");
assert_token_at(" * ;", 0, TOKEN_STAR, "*");
assert_token_at(" / ", 0, TOKEN_SLASH, "/");
assert_token_at(" = ", 0, TOKEN_EQUAL, "=");
assert_token_at("1 * 2", 0, TOKEN_NUMBER, "1");
assert_token_at("1 * 2", 1, TOKEN_STAR, "*");
assert_token_at("1 * 2", 2, TOKEN_NUMBER, "2");
return MUNIT_OK;
}
static MunitResult
test_tokenize_unknown(const MunitParameter params[], void *user_data_or_fixture)
{
assert_token_at(" @ ", 0, TOKEN_UNKNOWN, "@");
assert_token_at(" $ ", 0, TOKEN_UNKNOWN, "$");
return MUNIT_OK;
}
static MunitResult
test_peek_next_token(const MunitParameter params[], void *user_data_or_fixture)
{
lexer_t lexer;
make_lexer_from_static_src(&lexer, "()");
token_t peek_token;
lexer_peek_next_token(&lexer, &peek_token);
token_t next_token;
lexer_next_token(&lexer, &next_token);
assert_int(peek_token.kind, ==, next_token.kind);
assert_char((char)peek_token.value.str[0], ==, (char)next_token.value.str[0]);
return MUNIT_OK;
}
static MunitTest tests[] = {
{ "/test_tokenize_digit", test_tokenize_number, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL },
{ "/test_tokenize_keywords", test_tokenize_keywords, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL },
{ "/test_tokenize_name", test_tokenize_name, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL },
{ "/test_tokenize_op", test_tokenize_op, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL },
{ "/test_tokenize_unknown", test_tokenize_unknown, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL },
{ "/test_peek_next_token", test_peek_next_token, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL },
{ NULL, NULL, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL }
};
static const MunitSuite suite = { "/lexer_test", tests, NULL, 1, MUNIT_SUITE_OPTION_NONE };
int
main(int argc, char *argv[])
{
return munit_suite_main(&suite, NULL, argc, argv);
return EXIT_SUCCESS;
}
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