42sh/tests/unit/lexer/lexer_tests.c

#include <criterion/criterion.h>
#include <criterion/new/assert.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>

#include "lexer/lexer.h"
#include "io_backend/io_backend.h"

TestSuite(peek_token);

Test(peek_token, basic_empty)
{
    // simulates input
    char command[] = "";
    struct iob_context context =
    {
        IOB_MODE_CMD,
        command
    };
    iob_init(&context);

    // test
    struct token *tok = peek_token();

    // expected
    enum token_type type_expected = TOKEN_EOF;
    char *string_expected = NULL;

    cr_assert(eq(str, string_expected, tok->data));
    cr_assert(type_expected == tok->type);

    free_token(&tok);
}

Test(peek_token, basic_word)
{
    // simulates input
    char command[] = "hello";
    struct iob_context context =
    {
        IOB_MODE_CMD,
        command
    };
    iob_init(&context);

    // test
    struct token *tok = peek_token();

    // expected
    enum token_type type_expected = TOKEN_WORD;
    char string_expected[] = "hello";

    cr_assert(eq(str, string_expected, tok->data));
    cr_assert(type_expected == tok->type);
    free_token(&tok);
}
Test(peek_token, basic_words)
{
    // simulates input
    char command[] = "echo hello there";
    struct iob_context context =
    {
        IOB_MODE_CMD,
        command
    };
    iob_init(&context);

    // ======= echo

    struct token *tok = peek_token();

    enum token_type type_expected = TOKEN_WORD;
    char string_expected[] = "echo";

    cr_assert(eq(str, string_expected, tok->data));
    cr_assert(type_expected == tok->type);
    free_token(&tok);

    // ======= hello

    tok = peek_token();

    char string_expected2[] = "hello";

    cr_assert(eq(str, string_expected2, tok->data));
    cr_assert(type_expected == tok->type);
    free_token(&tok);

    // ======= there

    tok = peek_token();

    char string_expected3[] = "there";

    cr_assert(eq(str, string_expected3, tok->data));
    cr_assert(type_expected == tok->type);
    free_token(&tok);
}