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/* Unit tests for the TUI widget layer (clients/tui.c). Only the pure parts
are exercised here; drawing is smoke-tested over a pty. */
#include <stdio.h>
#include <string.h>
#include <ncursesw/ncurses.h>
#include "tui.h"
#include "util.h"
static int failures = 0;
static int checks = 0;
#define CHECK(cond) \
do { \
checks++; \
if (!(cond)) { \
failures++; \
fprintf(stderr, "FAIL %s:%d: %s\n", __FILE__, __LINE__, \
#cond); \
} \
} while (0)
static void test_disp_width(void)
{
CHECK(tui_disp_width("") == 0);
CHECK(tui_disp_width("abc") == 3);
CHECK(tui_disp_width("åäö") == 3);
CHECK(tui_disp_width("aåb") == 3);
CHECK(tui_disp_width_n("åäö", 2) == 1);
CHECK(tui_disp_width_n("åäö", 4) == 2);
CHECK(tui_disp_width_n("abc", 2) == 2);
}
static void test_formats(void)
{
char buf[64];
tui_kr_format(123456, buf, sizeof buf);
CHECK(strcmp(buf, "1 234,56") == 0);
tui_kr_format(-1000000, buf, sizeof buf);
CHECK(strcmp(buf, "-10 000,00") == 0);
tui_kr_format(5, buf, sizeof buf);
CHECK(strcmp(buf, "0,05") == 0);
tui_kr0_format(123456, buf, sizeof buf);
CHECK(strcmp(buf, "1 235") == 0);
tui_kr0_format(-123456, buf, sizeof buf);
CHECK(strcmp(buf, "-1 235") == 0);
tui_amt_col(buf, sizeof buf, 12, 123456);
CHECK(strcmp(buf, " 1 234,56") == 0);
snprintf(buf, sizeof buf, "åäö");
tui_pad_field(buf, sizeof buf, 2);
CHECK(strcmp(buf, "åä") == 0);
}
static void test_parse_kr(void)
{
int64_t v = -1;
CHECK(tui_parse_kr("", &v) == 0 && v == 0);
CHECK(tui_parse_kr("0", &v) == 0 && v == 0);
CHECK(tui_parse_kr("12", &v) == 0 && v == 1200);
CHECK(tui_parse_kr("1 234,56", &v) == 0 && v == 123456);
CHECK(tui_parse_kr("12,3", &v) == 0 && v == 1230);
CHECK(tui_parse_kr("12.30", &v) == 0 && v == 1230);
CHECK(tui_parse_kr("1.234", &v) != 0);
CHECK(tui_parse_kr("1,23,4", &v) != 0);
CHECK(tui_parse_kr("-5", &v) != 0);
CHECK(tui_parse_kr("12a", &v) != 0);
}
static void test_ledit(void)
{
char buf[32];
struct tui_ledit e;
snprintf(buf, sizeof buf, "abc");
tui_le_init(&e, buf, sizeof buf);
CHECK(e.pos == 3 && e.len == 3);
CHECK(tui_le_key(&e, KEY_LEFT) && e.pos == 2);
CHECK(tui_le_key(&e, 'X'));
CHECK(strcmp(buf, "abXc") == 0 && e.pos == 3);
CHECK(tui_le_key(&e, KEY_BACKSPACE));
CHECK(strcmp(buf, "abc") == 0 && e.pos == 2);
CHECK(tui_le_key(&e, KEY_DC));
CHECK(strcmp(buf, "ab") == 0 && e.pos == 2);
CHECK(tui_le_key(&e, KEY_HOME) && e.pos == 0);
CHECK(tui_le_key(&e, 21)); /* ^U */
CHECK(strcmp(buf, "") == 0 && e.len == 0);
/* UTF-8: the caret moves by code point, not by byte */
snprintf(buf, sizeof buf, "åä");
tui_le_init(&e, buf, sizeof buf);
CHECK(e.pos == 4);
CHECK(tui_le_key(&e, KEY_LEFT) && e.pos == 2);
CHECK(tui_le_key(&e, KEY_LEFT) && e.pos == 0);
CHECK(tui_le_key(&e, KEY_RIGHT) && e.pos == 2);
CHECK(tui_le_key(&e, KEY_BACKSPACE));
CHECK(strcmp(buf, "ä") == 0);
/* capacity: never overflow */
snprintf(buf, sizeof buf, "12345");
tui_le_init(&e, buf, 4);
CHECK(tui_le_key(&e, '9') == 1 || 1);
CHECK(strlen(buf) < 4 && e.len < 4);
CHECK(tui_le_key(&e, KEY_UP) == 0); /* not an editing key */
}
static void date_feed(char *buf, size_t cap, const char *digits)
{
size_t pos = (size_t)-1;
int fresh = 1;
for (const char *p = digits; *p; p++)
tui_date_field_edit(buf, cap, &pos, *p, &fresh);
}
static void test_date_field(void)
{
char buf[16] = "";
size_t pos = (size_t)-1;
int fresh = 1;
date_feed(buf, sizeof buf, "20260604");
CHECK(strcmp(buf, "2026-06-04") == 0);
fresh = 0;
CHECK(tui_date_field_edit(buf, sizeof buf, &pos, KEY_BACKSPACE, &fresh));
CHECK(strcmp(buf, "2026-06-0") == 0);
CHECK(tui_date_field_edit(buf, sizeof buf, &pos, 21, &fresh)); /* ^U */
CHECK(strcmp(buf, "") == 0);
CHECK(tui_date_field_edit(buf, sizeof buf, &pos, 'x', &fresh) == 0);
/* fresh replaces a prefilled value on the first digit */
snprintf(buf, sizeof buf, "2025-01-01");
pos = (size_t)-1;
fresh = 1;
tui_date_field_edit(buf, sizeof buf, &pos, '9', &fresh);
CHECK(strcmp(buf, "9") == 0);
/* full field overwrites at the caret */
date_feed(buf, sizeof buf, "20260604");
pos = (size_t)-1;
fresh = 0;
tui_date_field_edit(buf, sizeof buf, &pos, '9', &fresh);
CHECK(strcmp(buf, "2026-06-09") == 0);
}
static void nav_init(struct tui_list_nav *v, int n)
{
memset(v, 0, sizeof *v);
v->n = n;
v->view = 10;
}
static void test_nav(void)
{
struct tui_list_nav v;
nav_init(&v, 0);
CHECK(tui_nav_key(&v, KEY_DOWN, 0, 0, 0, 0) == TUI_NAV_NONE);
nav_init(&v, 5);
CHECK(tui_nav_key(&v, KEY_UP, 0, 0, 0, 0) == TUI_NAV_NONE && v.sel == 0);
CHECK(tui_nav_key(&v, KEY_DOWN, 0, 0, 0, 0) == TUI_NAV_NONE && v.sel == 1);
CHECK(tui_nav_key(&v, KEY_END, 0, 0, 0, 0) == TUI_NAV_NONE && v.sel == 4);
CHECK(tui_nav_key(&v, KEY_DOWN, 0, 0, 0, 0) == TUI_NAV_NONE && v.sel == 4);
CHECK(tui_nav_key(&v, KEY_HOME, 0, 0, 0, 0) == TUI_NAV_NONE && v.sel == 0);
CHECK(tui_nav_key(&v, KEY_NPAGE, 0, 0, 0, 0) == TUI_NAV_NONE && v.sel == 4);
CHECK(tui_nav_key(&v, KEY_PPAGE, 0, 0, 0, 0) == TUI_NAV_NONE && v.sel == 0);
/* digits jump in lists, activate in menus */
CHECK(tui_nav_key(&v, '3', 0, 0, 0, 0) == TUI_NAV_NONE && v.sel == 2);
CHECK(tui_nav_key(&v, '3', 0, 0, 0, 1) == 2);
CHECK(tui_nav_key(&v, '9', 0, 0, 0, 0) == TUI_NAV_NONE); /* out of range */
CHECK(tui_nav_key(&v, '\n', 0, 0, 0, 0) == v.sel);
CHECK(tui_nav_key(&v, KEY_F(5), 0, 0, 0, 0) == -2);
CHECK(tui_nav_key(&v, TUI_KEY_CTRL_N, 1, 0, 0, 0) == -4);
CHECK(tui_nav_key(&v, TUI_KEY_CTRL_N, 0, 0, 0, 0) == TUI_NAV_NONE);
CHECK(tui_nav_key(&v, 'd', 0, 1, 0, 0) == -6);
CHECK(tui_nav_key(&v, 'd', 0, 0, 0, 0) == TUI_NAV_NONE);
CHECK(tui_nav_key(&v, 1, 0, 0, 1, 0) == -7); /* ^A */
CHECK(tui_nav_key(&v, 'q', 0, 0, 0, 0) == -1);
CHECK(tui_nav_key(&v, 27, 0, 0, 0, 0) == -1);
/* g goto takes multi-digit input and Enter only closes the prompt */
nav_init(&v, 20);
CHECK(tui_nav_key(&v, 'g', 0, 0, 0, 0) == TUI_NAV_NONE && v.goto_active);
CHECK(tui_nav_key(&v, '1', 0, 0, 0, 0) == TUI_NAV_NONE && v.sel == 0);
CHECK(tui_nav_key(&v, '2', 0, 0, 0, 0) == TUI_NAV_NONE && v.sel == 11);
CHECK(tui_nav_key(&v, KEY_BACKSPACE, 0, 0, 0, 0) == TUI_NAV_NONE &&
v.sel == 0);
CHECK(tui_nav_key(&v, '\n', 0, 0, 0, 0) == TUI_NAV_NONE && !v.goto_active);
/* the view follows the selection */
nav_init(&v, 100);
v.view = 10;
tui_nav_key(&v, KEY_END, 0, 0, 0, 0);
CHECK(v.top == 90);
}
static void test_form_nav(void)
{
CHECK(tui_form_next(0, 3, KEY_UP) == TUI_NAV_NONE);
CHECK(tui_form_next(0, 3, KEY_DOWN) == 1);
CHECK(tui_form_next(2, 3, KEY_DOWN) == TUI_NAV_NONE);
CHECK(tui_form_next(1, 3, KEY_F(5)) == TUI_FORM_REFRESH);
CHECK(tui_form_next(1, 3, TUI_KEY_CTRL_ENTER) == TUI_FORM_SUBMIT);
CHECK(tui_form_next(1, 3, KEY_F(9)) == TUI_FORM_SUBMIT);
CHECK(tui_form_next(1, 3, 27) == TUI_FORM_BACK);
CHECK(tui_form_next(1, 3, 'q') == TUI_FORM_BACK);
CHECK(tui_form_next(1, 3, 'x') == TUI_NAV_NONE);
}
static char rt_cells[8][3][64];
static void rt_cb(void *ud, int row, int col, char **buf, size_t *cap)
{
(void)ud;
*buf = rt_cells[row][col];
*cap = sizeof rt_cells[row][col];
}
static void rt_info_cb(void *ud, int row, char *buf, size_t n)
{
(void)ud;
snprintf(buf, n, "info%d", row);
}
static const struct tui_rt_col RT_COLS[3] = {
{ "A", 2, 8, TUI_RT_EDIT },
{ "N", 12, 8, TUI_RT_INFO },
{ "B", 22, 8, TUI_RT_EDIT },
};
static void test_rowtable(void)
{
struct tui_rt t;
memset(rt_cells, 0, sizeof rt_cells);
tui_rt_init(&t, 1, 8, 3, RT_COLS, 6, rt_cb, rt_info_cb, NULL);
CHECK(t.nrows == 1 && t.neditable == 2 && t.row == 0 && t.col == 0);
CHECK(tui_rt_blank_row(&t, 0));
CHECK(tui_rt_move(&t, 0, 1) && t.col == 1);
CHECK(tui_rt_move(&t, 0, 1) && t.col == 0);
CHECK(tui_rt_move(&t, -1, 0) == 0);
CHECK(tui_rt_move(&t, 1, 0) == 0);
/* data in the blank row appends a new blank row */
snprintf(rt_cells[0][0], 64, "1930");
CHECK(tui_rt_normalize(&t) == 2);
snprintf(rt_cells[1][0], 64, "x");
CHECK(tui_rt_normalize(&t) == 3);
/* two trailing blank rows collapse into one */
t.nrows = 5;
CHECK(tui_rt_normalize(&t) == 3);
/* ^X clears the row and re-normalizes */
t.row = 1;
t.col = 0;
CHECK(tui_rt_clear(&t));
CHECK(t.nrows == 2);
CHECK(rt_cells[1][0][0] == '\0');
CHECK(tui_rt_clear(&t));
CHECK(t.nrows == 2); /* the second clear only hit the blank row */
t.row = 0;
CHECK(tui_rt_clear(&t));
CHECK(t.nrows == 1);
tui_rt_clear(&t);
CHECK(t.nrows == 1); /* never below one row */
}
int main(void)
{
test_disp_width();
test_formats();
test_parse_kr();
test_ledit();
test_date_field();
test_nav();
test_form_nav();
test_rowtable();
printf("test_tui: %d checks, %d failures\n", checks, failures);
return failures ? 1 : 0;
}
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