Merge upstream/master into merge/upstream-full

Merge profanity-im/profanity master (373 commits) into cproof fork.

Source changes (manual merge):
- src/command/: cmd_defs, cmd_funcs, cmd_ac — upstream g_new0, auto_gchar,
  launch_editor callback; keep our XEP-0308 LMC, force-encryption, CWE-134
- src/config/: preferences, tlscerts, account — upstream UNIQUE dedup,
  dynamic pad capacity; keep our db_history_result_t, scroll logic
- src/database.*: upstream g_new0 memory mgmt; keep our return types,
  add null-check fix for msg->timestamp
- src/omemo/, src/pgp/: upstream _gpgme_key_get_email, g_new0;
  keep our replace_id in omemo_on_message_send
- src/tools/: editor, http_upload, bookmark_ignore — upstream launch_editor
  callback API
- src/ui/: console, window, chatwin, mucwin, inputwin, buffer —
  upstream win_warn_needed/sent dedup, PAD_MIN_HEIGHT dynamic pads;
  keep our y_start_pos scroll, _truncate_datetime_suffix
- src/xmpp/: message, stanza, presence, roster_list, iq, session —
  upstream connection_get_available_resources; keep our LMC stanza logic
- src/common.c: fix format-security (cons_show)

Build system:
- Makefile.am: updated test paths to subdirectory structure, added
  test_cmd_ac, test_forced_encryption
- Restored autotools files deleted by upstream meson migration:
  bootstrap.sh, autogen.sh, m4/ax_valgrind_check.m4, configure-debug

Tests:
- Unit tests: upstream unittests.c base + our forced_encryption tests
  (482 passed, 0 failed across all 4 configurations)
- Functional tests: kept our version (93 passed, 0 failed)
  upstream version requires stbbr_for_xmlns not yet in our stabber fork
- Updated test stubs: stub_xmpp.c, stub_omemo.c from upstream

Compile fixes:
- src/common.c: cons_show(errmsg) -> cons_show("%s", errmsg)
- src/database.c: null-check before msg->timestamp access
- src/ui/console.c: size_t -> (int) cast for format width
- src/config/tlscerts.c: %d -> %zu for size_t

tests/unittests/ui/stub_ui.c

@@ -1,3 +1,11 @@
+/*
+ * stub_ui.c
+ *
+ * Copyright (C) 2015 - 2018 James Booth <boothj5@gmail.com>
+ * Copyright (C) 2019 - 2026 Michael Vetter <jubalh@iodoru.org>
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
 #include "config.h"
 
 #include <glib.h>
@@ -54,6 +62,14 @@ ui_init(void)
 {
 }
 void
+ui_suspend(void)
+{
+}
+void
+ui_resume(void)
+{
+}
+void
 ui_load_colours(void)
 {
 }
@@ -1005,6 +1021,10 @@ cons_splash_setting(void)
 {
 }
 void
+cons_spellcheck_setting(void)
+{
+}
+void
 cons_vercheck_setting(void)
 {
 }
@@ -1320,6 +1340,22 @@ win_refresh_with_subwin(ProfWin* window)
 {
 }
 
+gboolean
+win_warn_needed(ProfWin* window, const char* const type, const char* const jid)
+{
+    return TRUE;
+}
+
+void
+win_warn_sent(ProfWin* window, const char* const type, const char* const jid)
+{
+}
+
+void
+win_clear_warned_jids(ProfWin* window)
+{
+}
+
 void
 win_println(ProfWin* window, theme_item_t theme, const char* ch, const char* const message, ...)
 {

tests/unittests/ui/stub_ui.h

@@ -1,3 +1,11 @@
+/*
+ * stub_ui.h
+ *
+ * Copyright (C) 2015 - 2016 James Booth <boothj5@gmail.com>
+ * Copyright (C) 2015 - 2026 Michael Vetter <jubalh@iodoru.org>
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
 void expect_cons_show(char* expected);
 void expect_any_cons_show(void);
 void expect_cons_show_error(char* expected);

tests/unittests/ui/test_keyhandlers.c

@@ -0,0 +1,774 @@
+#include "prof_cmocka.h"
+#include <stdlib.h>
+#include <string.h>
+
+#include <locale.h>
+
+#include "ui/keyhandlers.h"
+#include "ui/inputwin.h"
+#include "tests/helpers.h"
+
+static char line[INP_WIN_MAX];
+
+// append
+
+void
+key_printable__updates__append_to_empty(void** state)
+{
+    setlocale(LC_ALL, "");
+    line[0] = '\0';
+    int line_utf8_pos = 0;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_printable(line, &line_utf8_pos, &col, &pad_start, 'a', 80);
+
+    assert_string_equal("a", line);
+    assert_int_equal(line_utf8_pos, 1);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_printable__updates__append_wide_to_empty(void** state)
+{
+    setlocale(LC_ALL, "");
+    line[0] = '\0';
+    int line_utf8_pos = 0;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_printable(line, &line_utf8_pos, &col, &pad_start, 0x56DB, 80);
+
+    assert_string_equal("四", line);
+    assert_int_equal(line_utf8_pos, 1);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_printable__updates__append_to_single(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "a", 1);
+    line[1] = '\0';
+    int line_utf8_pos = 1;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_printable(line, &line_utf8_pos, &col, &pad_start, 'b', 80);
+
+    assert_string_equal("ab", line);
+    assert_int_equal(line_utf8_pos, 2);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_printable__updates__append_wide_to_single_non_wide(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "a", 1);
+    line[1] = '\0';
+    int line_utf8_pos = 1;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_printable(line, &line_utf8_pos, &col, &pad_start, 0x56DB, 80);
+
+    assert_string_equal("a四", line);
+    assert_int_equal(line_utf8_pos, 2);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_printable__updates__append_non_wide_to_single_wide(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "四", 1);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 1;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_printable(line, &line_utf8_pos, &col, &pad_start, 'b', 80);
+
+    assert_string_equal("四b", line);
+    assert_int_equal(line_utf8_pos, 2);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_printable__updates__append_wide_to_single_wide(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "四", 1);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 1;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_printable(line, &line_utf8_pos, &col, &pad_start, 0x4E09, 80);
+
+    assert_string_equal("四三", line);
+    assert_int_equal(line_utf8_pos, 2);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_printable__updates__append_non_wide_when_overrun(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "0123456789四1234567", 18);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 18;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_printable(line, &line_utf8_pos, &col, &pad_start, 'z', 20);
+    key_printable(line, &line_utf8_pos, &col, &pad_start, 'z', 20);
+    key_printable(line, &line_utf8_pos, &col, &pad_start, 'z', 20);
+
+    assert_string_equal("0123456789四1234567zzz", line);
+    assert_int_equal(line_utf8_pos, 21);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 3);
+}
+
+void
+key_printable__updates__insert_non_wide_to_non_wide(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "abcd", 4);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 2;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_printable(line, &line_utf8_pos, &col, &pad_start, '0', 80);
+
+    assert_string_equal("ab0cd", line);
+    assert_int_equal(line_utf8_pos, 3);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_printable__updates__insert_single_non_wide_when_pad_scrolled(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "AAAAAAAAAAAAAAA", 15);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 2;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 2;
+
+    key_printable(line, &line_utf8_pos, &col, &pad_start, 'B', 12);
+
+    assert_string_equal("AABAAAAAAAAAAAAA", line);
+    assert_int_equal(line_utf8_pos, 3);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 2);
+}
+
+void
+key_printable__updates__insert_many_non_wide_when_pad_scrolled(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "AAAAAAAAAAAAAAA", 15);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 2;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 2;
+
+    key_printable(line, &line_utf8_pos, &col, &pad_start, 'B', 12);
+    key_printable(line, &line_utf8_pos, &col, &pad_start, 'C', 12);
+    key_printable(line, &line_utf8_pos, &col, &pad_start, 'D', 12);
+
+    assert_string_equal("AABCDAAAAAAAAAAAAA", line);
+    assert_int_equal(line_utf8_pos, 5);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 2);
+}
+
+void
+key_printable__updates__insert_single_non_wide_last_column(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "abcdefghijklmno", 15);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 7;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 2;
+
+    key_printable(line, &line_utf8_pos, &col, &pad_start, '1', 5);
+
+    assert_string_equal("abcdefg1hijklmno", line);
+    assert_int_equal(line_utf8_pos, 8);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 3);
+}
+
+void
+key_printable__updates__insert_many_non_wide_last_column(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "abcdefghijklmno", 15);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 7;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 2;
+
+    key_printable(line, &line_utf8_pos, &col, &pad_start, '1', 5);
+    key_printable(line, &line_utf8_pos, &col, &pad_start, '2', 5);
+
+    assert_string_equal("abcdefg12hijklmno", line);
+    assert_int_equal(line_utf8_pos, 9);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 4);
+}
+
+void
+key_ctrl_left__updates__when_no_input(void** state)
+{
+    setlocale(LC_ALL, "");
+    line[0] = '\0';
+    int line_utf8_pos = 0;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 0);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_left__updates__when_at_start(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "abcd efghij klmn opqr", 21);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 0;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 0);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_left__updates__when_in_first_word(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "abcd efghij klmn opqr", 21);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 2;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 0);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_left__updates__when_in_first_space(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "abcd efghij klmn opqr", 21);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 4;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 0);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_left__updates__at_start_of_second_word(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "abcd efghij klmn opqr", 21);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 5;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 0);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_left__updates__when_in_second_word(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "abcd efghij klmn opqr", 21);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 8;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 5);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_left__updates__at_end_of_second_word(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "abcd efghij klmn opqr", 21);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 10;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 5);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_left__updates__when_in_second_space(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "abcd efghij klmn opqr", 21);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 11;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 5);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_left__updates__at_start_of_third_word(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "abcd efghij klmn opqr", 21);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 12;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 5);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_left__updates__when_in_third_word(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "abcd efghij klmn opqr", 21);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 14;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 12);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_left__updates__at_end_of_third_word(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "abcd efghij klmn opqr", 21);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 15;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 12);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_left__updates__when_in_third_space(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "abcd efghij klmn opqr", 21);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 16;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 12);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_left__updates__when_at_end(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "abcd efghij klmn opqr", 21);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 20;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 17);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_left__updates__when_in_only_whitespace(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "       ", 7);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 5;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 0);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_left__updates__when_start_whitespace_start_of_word(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "    hello", 9);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 4;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 0);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_left__updates__when_start_whitespace_middle_of_word(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "    hello", 9);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 7;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 4);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_left__updates__in_whitespace_between_words(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "hey    hello", 12);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 5;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 0);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_left__updates__in_whitespace_between_words_start_of_word(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "hey    hello", 12);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 7;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 0);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_left__updates__in_whitespace_between_words_middle_of_word(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "hey    hello", 12);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 9;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 7);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_left__updates__when_word_overrun_to_left(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "someword anotherword", 20);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 18;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 14;
+
+    key_ctrl_left(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 9);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 9);
+}
+
+void
+key_ctrl_right__updates__when_no_input(void** state)
+{
+    setlocale(LC_ALL, "");
+    line[0] = '\0';
+    int line_utf8_pos = 0;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_right(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 0);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_right__updates__when_at_end(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "someword anotherword", 20);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 20;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_right(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 20);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_right__updates__one_word_at_start(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "someword", 8);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 0;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_right(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 8);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_right__updates__one_word_in_middle(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "someword", 8);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 3;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_right(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 8);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_right__updates__one_word_at_end(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "someword", 8);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 7;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_right(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 8);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_right__updates__two_words_from_middle_first(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "someword anotherword", 20);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 4;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_right(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 8);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_right__updates__two_words_from_end_first(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "someword anotherword", 20);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 7;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_right(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 8);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_right__updates__two_words_from_space(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "someword anotherword", 20);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 8;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_right(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 20);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_right__updates__two_words_from_start_second(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "someword anotherword", 20);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 9;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_right(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 20);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_right__updates__one_word_leading_whitespace(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "       someword", 15);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 3;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_right(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 15);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_right__updates__two_words_in_whitespace(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "       someword        adfasdf", 30);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 19;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_right(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 30);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}
+
+void
+key_ctrl_right__updates__trailing_whitespace_from_middle(void** state)
+{
+    setlocale(LC_ALL, "");
+    g_utf8_strncpy(line, "someword        ", 16);
+    line[strlen(line)] = '\0';
+    int line_utf8_pos = 3;
+    int col = utf8_pos_to_col(line, line_utf8_pos);
+    int pad_start = 0;
+
+    key_ctrl_right(line, &line_utf8_pos, &col, &pad_start, 80);
+
+    assert_int_equal(line_utf8_pos, 8);
+    assert_int_equal(col, utf8_pos_to_col(line, line_utf8_pos));
+    assert_int_equal(pad_start, 0);
+}

tests/unittests/ui/test_keyhandlers.h

@@ -0,0 +1,52 @@
+#ifndef TESTS_TEST_KEYHANDLERS_H
+#define TESTS_TEST_KEYHANDLERS_H
+
+void key_printable__updates__append_to_empty(void** state);
+void key_printable__updates__append_wide_to_empty(void** state);
+void key_printable__updates__append_to_single(void** state);
+void key_printable__updates__append_wide_to_single_non_wide(void** state);
+void key_printable__updates__append_non_wide_to_single_wide(void** state);
+void key_printable__updates__append_wide_to_single_wide(void** state);
+void key_printable__updates__append_non_wide_when_overrun(void** state);
+
+void key_printable__updates__insert_non_wide_to_non_wide(void** state);
+void key_printable__updates__insert_single_non_wide_when_pad_scrolled(void** state);
+void key_printable__updates__insert_many_non_wide_when_pad_scrolled(void** state);
+void key_printable__updates__insert_single_non_wide_last_column(void** state);
+void key_printable__updates__insert_many_non_wide_last_column(void** state);
+
+void key_ctrl_left__updates__when_no_input(void** state);
+void key_ctrl_left__updates__when_at_start(void** state);
+void key_ctrl_left__updates__when_in_first_word(void** state);
+void key_ctrl_left__updates__when_in_first_space(void** state);
+void key_ctrl_left__updates__at_start_of_second_word(void** state);
+void key_ctrl_left__updates__when_in_second_word(void** state);
+void key_ctrl_left__updates__at_end_of_second_word(void** state);
+void key_ctrl_left__updates__when_in_second_space(void** state);
+void key_ctrl_left__updates__at_start_of_third_word(void** state);
+void key_ctrl_left__updates__when_in_third_word(void** state);
+void key_ctrl_left__updates__at_end_of_third_word(void** state);
+void key_ctrl_left__updates__when_in_third_space(void** state);
+void key_ctrl_left__updates__when_at_end(void** state);
+void key_ctrl_left__updates__when_in_only_whitespace(void** state);
+void key_ctrl_left__updates__when_start_whitespace_start_of_word(void** state);
+void key_ctrl_left__updates__when_start_whitespace_middle_of_word(void** state);
+void key_ctrl_left__updates__in_whitespace_between_words(void** state);
+void key_ctrl_left__updates__in_whitespace_between_words_start_of_word(void** state);
+void key_ctrl_left__updates__in_whitespace_between_words_middle_of_word(void** state);
+void key_ctrl_left__updates__when_word_overrun_to_left(void** state);
+
+void key_ctrl_right__updates__when_no_input(void** state);
+void key_ctrl_right__updates__when_at_end(void** state);
+void key_ctrl_right__updates__one_word_at_start(void** state);
+void key_ctrl_right__updates__one_word_in_middle(void** state);
+void key_ctrl_right__updates__one_word_at_end(void** state);
+void key_ctrl_right__updates__two_words_from_middle_first(void** state);
+void key_ctrl_right__updates__two_words_from_end_first(void** state);
+void key_ctrl_right__updates__two_words_from_space(void** state);
+void key_ctrl_right__updates__two_words_from_start_second(void** state);
+void key_ctrl_right__updates__one_word_leading_whitespace(void** state);
+void key_ctrl_right__updates__two_words_in_whitespace(void** state);
+void key_ctrl_right__updates__trailing_whitespace_from_middle(void** state);
+
+#endif