#include <criterion/criterion.h>
#include <stdio.h>

#include "io.h"

/*
** TESTS: io/streams.c
*/

Test(io, open_with_files)
{
	t_io	io;
	int8_t	ret;

	FILE *f = fopen("/tmp/test_io_in.md", "w");
	fprintf(f, "test\n");
	fclose(f);

	ret = io_open(&io, "/tmp/test_io_in.md", "/tmp/test_io_out.c");

	cr_assert_eq(ret, 0);
	cr_assert_not_null(io.in);
	cr_assert_not_null(io.out);
	cr_assert_neq(io.in, stdin);
	cr_assert_neq(io.out, stdout);

	io_close(&io);
	remove("/tmp/test_io_in.md");
	remove("/tmp/test_io_out.c");
}

Test(io, open_with_stdin_stdout)
{
	t_io	io;
	int8_t	ret;

	ret = io_open(&io, NULL, NULL);

	cr_assert_eq(ret, 0);
	cr_assert_eq(io.in, stdin);
	cr_assert_eq(io.out, stdout);

	io_close(&io);
}

Test(io, open_with_invalid_input)
{
	t_io	io;
	int8_t	ret;

	ret = io_open(&io, "/tmp/nonexistent_file_123456.md", "/tmp/test_io_out.c");

	cr_assert_eq(ret, 1);
}

Test(io, open_input_only)
{
	t_io	io;
	int8_t	ret;

	FILE *f = fopen("/tmp/test_io_input.md", "w");
	fprintf(f, "test\n");
	fclose(f);

	ret = io_open(&io, "/tmp/test_io_input.md", NULL);

	cr_assert_eq(ret, 0);
	cr_assert_not_null(io.in);
	cr_assert_neq(io.in, stdin);
	cr_assert_eq(io.out, stdout);

	io_close(&io);
	remove("/tmp/test_io_input.md");
}

Test(io, open_output_only)
{
	t_io	io;
	int8_t	ret;

	ret = io_open(&io, NULL, "/tmp/test_io_output.c");

	cr_assert_eq(ret, 0);
	cr_assert_eq(io.in, stdin);
	cr_assert_not_null(io.out);
	cr_assert_neq(io.out, stdout);

	io_close(&io);
	remove("/tmp/test_io_output.c");
}

Test(io, close_does_not_close_stdin_stdout)
{
	t_io	io;

	io.in = stdin;
	io.out = stdout;

	io_close(&io);

	cr_assert_eq(io.in, stdin);
	cr_assert_eq(io.out, stdout);
}