/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * 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 2 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:
 *
 * Copyright (C) 2010 Red Hat, Inc.
 */

#include <glib.h>
#include <string.h>
#include <locale.h>

#include "mm-modem-helpers.h"
#include "mm-log-test.h"

static void
common_test_gsm7 (const gchar *in_utf8)
{
    guint32 packed_gsm_len = 0;
    guint32 unpacked_gsm_len_2 = 0;
    g_autoptr(GByteArray) unpacked_gsm = NULL;
    g_autofree guint8 *packed_gsm = NULL;
    guint8 *unpacked_gsm_2 = NULL;
    g_autoptr(GByteArray) unpacked_gsm_2_array = NULL;
    g_autofree gchar *built_utf8 = NULL;
    g_autoptr(GError) error = NULL;

    /* Convert to GSM */
    unpacked_gsm = mm_modem_charset_bytearray_from_utf8 (in_utf8, MM_MODEM_CHARSET_GSM, FALSE, &error);
    g_assert_nonnull (unpacked_gsm);
    g_assert_no_error (error);

    /* Pack */
    packed_gsm = mm_charset_gsm_pack (unpacked_gsm->data, unpacked_gsm->len, 0, &packed_gsm_len);
    g_assert_nonnull (packed_gsm);
    g_assert_cmpuint (packed_gsm_len, <=, unpacked_gsm->len);

#if 0
    {
        g_autofree gchar *hex_packed = NULL;

        /* Print */
        hex_packed = mm_utils_bin2hexstr (packed_gsm, packed_gsm_len);
        g_print ("----------\n");
        g_print ("input string: '%s'\n", in_utf8);
        g_print ("gsm-7 encoded string: %s\n", hex_packed);
    }
#endif

    /* Unpack */
    unpacked_gsm_2 = mm_charset_gsm_unpack (packed_gsm, packed_gsm_len * 8 / 7, 0, &unpacked_gsm_len_2);
    g_assert_nonnull (unpacked_gsm_2);
    unpacked_gsm_2_array = g_byte_array_new_take (unpacked_gsm_2, unpacked_gsm_len_2);

    /* And back to UTF-8 */
    built_utf8 = mm_modem_charset_bytearray_to_utf8 (unpacked_gsm_2_array, MM_MODEM_CHARSET_GSM, FALSE, &error);
    g_assert_nonnull (built_utf8);
    g_assert_no_error (error);
    g_assert_cmpstr (built_utf8, ==, in_utf8);
}

static void
test_gsm7_default_chars (void)
{
    /* Test that a string with all the characters in the GSM 03.38 charset
     * are converted from UTF-8 to GSM and back to UTF-8 successfully.
     */
    static const char *s = "@£$¥èéùìòÇ\nØø\rÅåΔ_ΦΓΛΩΠΨΣΘΞÆæßÉ !\"#¤%&'()*+,-./0123456789:;<=>?¡ABCDEFGHIJKLMNOPQRSTUVWXYZÄÖÑܧ¿abcdefghijklmnopqrstuvwxyzäöñüà";

    common_test_gsm7 (s);
}

static void
test_gsm7_extended_chars (void)
{
    /* Test that a string with all the characters in the extended GSM 03.38
     * charset are converted from UTF-8 to GSM and back to UTF-8 successfully.
     */
    static const char *s = "\f^{}\\[~]|€";

    common_test_gsm7 (s);
}

static void
test_gsm7_mixed_chars (void)
{
    /* Test that a string with a mix of GSM 03.38 default and extended characters
     * is converted from UTF-8 to GSM and back to UTF-8 successfully.
     */
    static const char *s = "@£$¥èéùìø\fΩΠΨΣΘ{ΞÆæß(})789\\:;<=>[?¡QRS]TUÖ|Ñܧ¿abpqrstuvöñüà€";

    common_test_gsm7 (s);
}

static void
test_gsm7_unpack_basic (void)
{
    static const guint8 gsm[] = { 0xC8, 0xF7, 0x1D, 0x14, 0x96, 0x97, 0x41, 0xF9, 0x77, 0xFD, 0x07 };
    static const guint8 expected[] = { 0x48, 0x6f, 0x77, 0x20, 0x61, 0x72, 0x65, 0x20, 0x79, 0x6f, 0x75, 0x3f };
    guint8 *unpacked;
    guint32 unpacked_len = 0;

    unpacked = mm_charset_gsm_unpack (gsm, (sizeof (gsm) * 8) / 7, 0, &unpacked_len);
    g_assert (unpacked);
    g_assert_cmpint (unpacked_len, ==, sizeof (expected));
    g_assert_cmpint (memcmp (unpacked, expected, unpacked_len), ==, 0);

    g_free (unpacked);
}

static void
test_gsm7_unpack_7_chars (void)
{
    static const guint8 gsm[] = { 0xF1, 0x7B, 0x59, 0x4E, 0xCF, 0xD7, 0x01 };
    static const guint8 expected[] = { 0x71, 0x77, 0x65, 0x72, 0x74, 0x79, 0x75};
    guint8 *unpacked;
    guint32 unpacked_len = 0;

    /* Tests the edge case where there are 7 bits left in the packed
     * buffer but those 7 bits do not contain a character.  In this case
     * we expect to get the number of characters that were specified.
     */

    unpacked = mm_charset_gsm_unpack (gsm, 7 , 0, &unpacked_len);
    g_assert (unpacked);
    g_assert_cmpint (unpacked_len, ==, sizeof (expected));
    g_assert_cmpint (memcmp (unpacked, expected, unpacked_len), ==, 0);

    g_free (unpacked);
}

static void
test_gsm7_unpack_all_chars (void)
{
    /* Packed array of all chars in GSM default and extended charset */
    static const guint8 gsm[] = {
        0x80, 0x80, 0x60, 0x40, 0x28, 0x18, 0x0E, 0x88, 0x84, 0x62, 0xC1, 0x68,
        0x38, 0x1E, 0x90, 0x88, 0x64, 0x42, 0xA9, 0x58, 0x2E, 0x98, 0x8C, 0x66,
        0xC3, 0xE9, 0x78, 0x3E, 0xA0, 0x90, 0x68, 0x44, 0x2A, 0x99, 0x4E, 0xA8,
        0x94, 0x6A, 0xC5, 0x6A, 0xB9, 0x5E, 0xB0, 0x98, 0x6C, 0x46, 0xAB, 0xD9,
        0x6E, 0xB8, 0x9C, 0x6E, 0xC7, 0xEB, 0xF9, 0x7E, 0xC0, 0xA0, 0x70, 0x48,
        0x2C, 0x1A, 0x8F, 0xC8, 0xA4, 0x72, 0xC9, 0x6C, 0x3A, 0x9F, 0xD0, 0xA8,
        0x74, 0x4A, 0xAD, 0x5A, 0xAF, 0xD8, 0xAC, 0x76, 0xCB, 0xED, 0x7A, 0xBF,
        0xE0, 0xB0, 0x78, 0x4C, 0x2E, 0x9B, 0xCF, 0xE8, 0xB4, 0x7A, 0xCD, 0x6E,
        0xBB, 0xDF, 0xF0, 0xB8, 0x7C, 0x4E, 0xAF, 0xDB, 0xEF, 0xF8, 0xBC, 0x7E,
        0xCF, 0xEF, 0xFB, 0xFF, 0x1B, 0xC5, 0x86, 0xB2, 0x41, 0x6D, 0x52, 0x9B,
        0xD7, 0x86, 0xB7, 0xE9, 0x6D, 0x7C, 0x1B, 0xE0, 0xA6, 0x0C
    };
    static const guint8 ext[] = {
        0x1B, 0x0A, 0x1B, 0x14, 0x1B, 0x28, 0x1B, 0x29, 0x1B, 0x2F, 0x1B, 0x3C,
        0x1B, 0x3D, 0x1B, 0x3E, 0x1B, 0x40, 0x1B, 0x65
    };
    guint8 *unpacked;
    guint32 unpacked_len = 0;
    int i;

    unpacked = mm_charset_gsm_unpack (gsm, (sizeof (gsm) * 8) / 7, 0, &unpacked_len);
    g_assert (unpacked);
    g_assert_cmpint (unpacked_len, ==, 148);

    /* Test default chars */
    for (i = 0; i < 128; i++)
        g_assert_cmpint (unpacked[i], ==, i);

    /* Text extended chars */
    g_assert_cmpint (memcmp ((guint8 *) (unpacked + 128), &ext[0], sizeof (ext)), ==, 0);

    g_free (unpacked);
}

static void
test_gsm7_pack_basic (void)
{
    static const guint8 unpacked[] = { 0x48, 0x6f, 0x77, 0x20, 0x61, 0x72, 0x65, 0x20, 0x79, 0x6f, 0x75, 0x3f };
    static const guint8 expected[] = { 0xC8, 0xF7, 0x1D, 0x14, 0x96, 0x97, 0x41, 0xF9, 0x77, 0xFD, 0x07 };
    guint8 *packed;
    guint32 packed_len = 0;

    packed = mm_charset_gsm_pack (unpacked, sizeof (unpacked), 0, &packed_len);
    g_assert (packed);
    g_assert_cmpint (packed_len, ==, sizeof (expected));
    g_assert_cmpint (memcmp (packed, expected, packed_len), ==, 0);

    g_free (packed);
}

static void
test_gsm7_pack_7_chars (void)
{
    static const guint8 unpacked[] = { 0x71, 0x77, 0x65, 0x72, 0x74, 0x79, 0x75 };
    static const guint8 expected[] = { 0xF1, 0x7B, 0x59, 0x4E, 0xCF, 0xD7, 0x01 };
    guint8 *packed;
    guint32 packed_len = 0;

    /* Tests the edge case where there are 7 bits left in the packed
     * buffer but those 7 bits do not contain a character.  In this case
     * we expect a trailing NULL byte and the caller must know enough about
     * the intended message to remove it when required.
     */

    packed = mm_charset_gsm_pack (unpacked, sizeof (unpacked), 0, &packed_len);
    g_assert (packed);
    g_assert_cmpint (packed_len, ==, sizeof (expected));
    g_assert_cmpint (memcmp (packed, expected, packed_len), ==, 0);

    g_free (packed);
}

static void
test_gsm7_pack_all_chars (void)
{
    /* Packed array of all chars in GSM default and extended charset */
    static const guint8 expected[] = {
        0x80, 0x80, 0x60, 0x40, 0x28, 0x18, 0x0E, 0x88, 0x84, 0x62, 0xC1, 0x68,
        0x38, 0x1E, 0x90, 0x88, 0x64, 0x42, 0xA9, 0x58, 0x2E, 0x98, 0x8C, 0x66,
        0xC3, 0xE9, 0x78, 0x3E, 0xA0, 0x90, 0x68, 0x44, 0x2A, 0x99, 0x4E, 0xA8,
        0x94, 0x6A, 0xC5, 0x6A, 0xB9, 0x5E, 0xB0, 0x98, 0x6C, 0x46, 0xAB, 0xD9,
        0x6E, 0xB8, 0x9C, 0x6E, 0xC7, 0xEB, 0xF9, 0x7E, 0xC0, 0xA0, 0x70, 0x48,
        0x2C, 0x1A, 0x8F, 0xC8, 0xA4, 0x72, 0xC9, 0x6C, 0x3A, 0x9F, 0xD0, 0xA8,
        0x74, 0x4A, 0xAD, 0x5A, 0xAF, 0xD8, 0xAC, 0x76, 0xCB, 0xED, 0x7A, 0xBF,
        0xE0, 0xB0, 0x78, 0x4C, 0x2E, 0x9B, 0xCF, 0xE8, 0xB4, 0x7A, 0xCD, 0x6E,
        0xBB, 0xDF, 0xF0, 0xB8, 0x7C, 0x4E, 0xAF, 0xDB, 0xEF, 0xF8, 0xBC, 0x7E,
        0xCF, 0xEF, 0xFB, 0xFF, 0x1B, 0xC5, 0x86, 0xB2, 0x41, 0x6D, 0x52, 0x9B,
        0xD7, 0x86, 0xB7, 0xE9, 0x6D, 0x7C, 0x1B, 0xE0, 0xA6, 0x0C
    };
    static const guint8 ext[] = {
        0x1B, 0x0A, 0x1B, 0x14, 0x1B, 0x28, 0x1B, 0x29, 0x1B, 0x2F, 0x1B, 0x3C,
        0x1B, 0x3D, 0x1B, 0x3E, 0x1B, 0x40, 0x1B, 0x65
    };
    guint8 *packed, c;
    guint32 packed_len = 0;
    GByteArray *unpacked;

    unpacked = g_byte_array_sized_new (148);
    for (c = 0; c < 128; c++)
        g_byte_array_append (unpacked, &c, 1);
    for (c = 0; c < sizeof (ext); c++)
        g_byte_array_append (unpacked, &ext[c], 1);

    packed = mm_charset_gsm_pack (unpacked->data, unpacked->len, 0, &packed_len);
    g_assert (packed);
    g_assert_cmpint (packed_len, ==, sizeof (expected));
    g_assert_cmpint (memcmp (packed, expected, packed_len), ==, 0);

    g_free (packed);
    g_byte_array_free (unpacked, TRUE);
}

static void
test_gsm7_pack_24_chars (void)
{
    static const guint8 unpacked[] = {
        0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
        0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17
    };
    guint8 *packed;
    guint32 packed_len = 0;

    /* Tests that no empty trailing byte is added when all the 7-bit characters
     * are packed into an exact number of bytes.
     */

    packed = mm_charset_gsm_pack (unpacked, sizeof (unpacked), 0, &packed_len);
    g_assert (packed);
    g_assert_cmpint (packed_len, ==, 21);

    g_free (packed);
}

static void
test_gsm7_pack_last_septet_alone (void)
{
    static const guint8 unpacked[] = {
        0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x72, 0x65, 0x61, 0x6C,
        0x6C, 0x79, 0x20, 0x63, 0x6F, 0x6F, 0x6C, 0x20, 0x10, 0x10, 0x10, 0x10,
        0x10
    };
    static const guint8 expected[] = {
        0x54, 0x74, 0x7A, 0x0E, 0x4A, 0xCF, 0x41, 0xF2, 0x72, 0x98, 0xCD, 0xCE,
        0x83, 0xC6, 0xEF, 0x37, 0x1B, 0x04, 0x81, 0x40, 0x20, 0x10
    };
    guint8 *packed;
    guint32 packed_len = 0;

    /* Tests that a 25-character unpacked string (where, when packed, the last
     * septet will be in an octet by itself) packs correctly.
     */

    packed = mm_charset_gsm_pack (unpacked, sizeof (unpacked), 0, &packed_len);
    g_assert (packed);
    g_assert_cmpint (packed_len, ==, sizeof (expected));

    g_free (packed);
}

static void
test_gsm7_pack_7_chars_offset (void)
{
    static const guint8 unpacked[] = { 0x68, 0x65, 0x6C, 0x6C, 0x6F, 0x10, 0x2F };
    static const guint8 expected[] = { 0x00, 0x5D, 0x66, 0xB3, 0xDF, 0x90, 0x17 };
    guint8 *packed;
    guint32 packed_len = 0;

    packed = mm_charset_gsm_pack (unpacked, sizeof (unpacked), 5, &packed_len);
    g_assert (packed);
    g_assert_cmpint (packed_len, ==, sizeof (expected));
    g_assert_cmpint (memcmp (packed, expected, packed_len), ==, 0);

    g_free (packed);
}

static void
test_str_ucs2_to_from_utf8 (void)
{
    const gchar       *src = "0054002D004D006F00620069006C0065";
    g_autofree gchar  *utf8 = NULL;
    g_autofree gchar  *dst = NULL;
    g_autoptr(GError)  error = NULL;

    utf8 = mm_modem_charset_str_to_utf8 (src, -1, MM_MODEM_CHARSET_UCS2, FALSE, &error);
    g_assert_no_error (error);
    g_assert_cmpstr (utf8, ==, "T-Mobile");

    dst = mm_modem_charset_str_from_utf8 (utf8, MM_MODEM_CHARSET_UCS2, FALSE, &error);
    g_assert_no_error (error);
    g_assert_cmpstr (dst, ==, src);
}

static void
test_str_gsm_to_from_utf8 (void)
{
    const gchar       *src = "T-Mobile";
    g_autofree gchar  *utf8 = NULL;
    g_autofree gchar  *dst = NULL;
    g_autoptr(GError)  error = NULL;

    /* Note: as long as the GSM string doesn't contain the '@' character, str_to_utf8()
     * and str_from_utf8() can safely be used */

    utf8 = mm_modem_charset_str_to_utf8 (src, -1, MM_MODEM_CHARSET_GSM, FALSE, &error);
    g_assert_no_error (error);
    g_assert_cmpstr (utf8, ==, src);

    dst = mm_modem_charset_str_from_utf8 (utf8, MM_MODEM_CHARSET_GSM, FALSE, &error);
    g_assert_no_error (error);
    g_assert_cmpstr (dst, ==, src);
}

static void
test_str_gsm_to_from_utf8_with_at (void)
{
    /* The NULs are '@' chars, except for the trailing one which is always taken as end-of-string */
    const gchar        src[] = { 'T', '-', 'M', 0x00, 'o', 'b', 'i', 0x00, 'l', 'e', 0x00 };
    const gchar       *utf8_expected = "T-M@obi@le";
    const gchar       *src_translit = "T-M?obi?le";
    g_autofree gchar  *utf8 = NULL;
    g_autofree gchar  *dst = NULL;
    g_autoptr(GError)  error = NULL;

    /* Note: as long as the GSM string doesn't contain the '@' character, str_to_utf8()
     * and str_from_utf8() can safely be used */

    utf8 = mm_modem_charset_str_to_utf8 (src, G_N_ELEMENTS (src), MM_MODEM_CHARSET_GSM, FALSE, &error);
    g_assert_no_error (error);
    g_assert_cmpstr (utf8, ==, utf8_expected);

    /* if charset conversion from UTF-8 contains '@' chars, running without transliteration
     * will return an error */
    dst = mm_modem_charset_str_from_utf8 (utf8, MM_MODEM_CHARSET_GSM, FALSE, &error);
    g_assert_nonnull (error);
    g_assert_null (dst);
    g_clear_error (&error);

    /* with transliteration, '@'->'?' */
    dst = mm_modem_charset_str_from_utf8 (utf8, MM_MODEM_CHARSET_GSM, TRUE, &error);
    g_assert_no_error (error);
    g_assert_cmpstr (dst, ==, src_translit);
}

struct charset_can_convert_to_test_s {
    const char *utf8;
    gboolean    to_gsm;
    gboolean    to_ira;
    gboolean    to_8859_1;
    gboolean    to_ucs2;
    gboolean    to_utf16;
    gboolean    to_pccp437;
    gboolean    to_pcdn;
};

static void
test_charset_can_covert_to (void)
{
    static const struct charset_can_convert_to_test_s charset_can_convert_to_test[] = {
        {
            .utf8 = "",
            .to_gsm = TRUE, .to_ira = TRUE, .to_8859_1 = TRUE, .to_ucs2 = TRUE, .to_utf16 = TRUE, .to_pccp437 = TRUE, .to_pcdn = TRUE,
        },
        {
            .utf8 = " ",
            .to_gsm = TRUE, .to_ira = TRUE, .to_8859_1 = TRUE, .to_ucs2 = TRUE, .to_utf16 = TRUE, .to_pccp437 = TRUE, .to_pcdn = TRUE,
        },
        {
            .utf8 = "some basic ascii",
            .to_gsm = TRUE, .to_ira = TRUE, .to_8859_1 = TRUE, .to_ucs2 = TRUE, .to_utf16 = TRUE, .to_pccp437 = TRUE, .to_pcdn = TRUE,
        },
        {
            .utf8 = "ホモ・サピエンス 喂人类 katakana, chinese, english: UCS2 takes it all",
            .to_gsm = FALSE, .to_ira = FALSE, .to_8859_1 = FALSE, .to_ucs2 = TRUE, .to_utf16 = TRUE, .to_pccp437 = FALSE, .to_pcdn = FALSE,
        },
        {
            .utf8 = "Some from the GSM7 basic set: a % Ψ Ω ñ ö è æ",
            .to_gsm = TRUE, .to_ira = FALSE, .to_8859_1 = FALSE, .to_ucs2 = TRUE, .to_utf16 = TRUE, .to_pccp437 = FALSE, .to_pcdn = FALSE,
        },
        {
            .utf8 = "More from the GSM7 extended set: {} [] ~ € |",
            .to_gsm = TRUE, .to_ira = FALSE, .to_8859_1 = FALSE, .to_ucs2 = TRUE, .to_utf16 = TRUE, .to_pccp437 = FALSE, .to_pcdn = FALSE,
        },
        {
            .utf8 = "patín cannot be encoded in GSM7 or IRA, but is valid UCS2, ISO-8859-1, CP437 and CP850",
            .to_gsm = FALSE, .to_ira = FALSE, .to_8859_1 = TRUE, .to_ucs2 = TRUE, .to_utf16 = TRUE, .to_pccp437 = TRUE, .to_pcdn = TRUE,
        },
        {
            .utf8 = "ècole can be encoded in multiple ways, but not in IRA",
            .to_gsm = TRUE, .to_ira = FALSE, .to_8859_1 = TRUE, .to_ucs2 = TRUE, .to_utf16 = TRUE, .to_pccp437 = TRUE, .to_pcdn = TRUE,
        },
    };
    guint i;

    for (i = 0; i < G_N_ELEMENTS (charset_can_convert_to_test); i++) {
        g_debug ("testing charset conversion: '%s'", charset_can_convert_to_test[i].utf8);
        g_assert (mm_charset_can_convert_to (charset_can_convert_to_test[i].utf8, MM_MODEM_CHARSET_GSM)     == charset_can_convert_to_test[i].to_gsm);
        g_assert (mm_charset_can_convert_to (charset_can_convert_to_test[i].utf8, MM_MODEM_CHARSET_IRA)     == charset_can_convert_to_test[i].to_ira);
        g_assert (mm_charset_can_convert_to (charset_can_convert_to_test[i].utf8, MM_MODEM_CHARSET_8859_1)  == charset_can_convert_to_test[i].to_8859_1);
        g_assert (mm_charset_can_convert_to (charset_can_convert_to_test[i].utf8, MM_MODEM_CHARSET_UCS2)    == charset_can_convert_to_test[i].to_ucs2);
        g_assert (mm_charset_can_convert_to (charset_can_convert_to_test[i].utf8, MM_MODEM_CHARSET_UTF16)   == charset_can_convert_to_test[i].to_utf16);
        g_assert (mm_charset_can_convert_to (charset_can_convert_to_test[i].utf8, MM_MODEM_CHARSET_PCCP437) == charset_can_convert_to_test[i].to_pccp437);
        g_assert (mm_charset_can_convert_to (charset_can_convert_to_test[i].utf8, MM_MODEM_CHARSET_PCDN)    == charset_can_convert_to_test[i].to_pcdn);
    }
}

/********************* TEXT SPLIT TESTS *********************/

static void
common_test_text_split (const gchar *text,
                        const gchar **expected,
                        MMModemCharset expected_charset)
{
    gchar **out;
    MMModemCharset out_charset = MM_MODEM_CHARSET_UNKNOWN;
    guint i;

    out = mm_charset_util_split_text (text, &out_charset, NULL);

    g_assert (out != NULL);
    g_assert (out_charset != MM_MODEM_CHARSET_UNKNOWN);

    g_assert_cmpuint (g_strv_length (out), ==, g_strv_length ((gchar **)expected));

    for (i = 0; out[i]; i++) {
        g_assert_cmpstr (out[i], ==, expected[i]);
    }

    g_strfreev (out);
}

static void
test_text_split_short_gsm7 (void)
{
    const gchar *text = "Hello";
    const gchar *expected [] = {
        "Hello",
        NULL
    };

    common_test_text_split (text, expected, MM_MODEM_CHARSET_GSM);
}

static void
test_text_split_short_ucs2 (void)
{
    const gchar *text = "你好"; /* (UTF-8) e4 bd a0 e5 a5 bd */
    const gchar *expected [] = {
        "你好",
        NULL
    };

    common_test_text_split (text, expected, MM_MODEM_CHARSET_UTF16);
}

static void
test_text_split_short_utf16 (void)
{
    const gchar *text = "😉"; /* U+1F609, winking face */
    const gchar *expected [] = {
        "😉",
        NULL
    };

    common_test_text_split (text, expected, MM_MODEM_CHARSET_UTF16);
}

static void
test_text_split_max_single_pdu_gsm7 (void)
{
    const gchar *text =
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789";
    const gchar *expected [] = {
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789",
        NULL
    };

    common_test_text_split (text, expected, MM_MODEM_CHARSET_GSM);
}

static void
test_text_split_max_single_pdu_gsm7_extended_chars (void)
{
    const gchar *text =
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "0123456789012345678901\\~[]{}^|€";
    const gchar *expected [] = {
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "0123456789012345678901\\~[]{}^|€",
        NULL
    };

    common_test_text_split (text, expected, MM_MODEM_CHARSET_GSM);
}

static void
test_text_split_max_single_pdu_ucs2 (void)
{
    /* NOTE: This chinese string contains 210 bytes when encoded in
     * UTF-8! But still, it can be placed into 140 bytes when in UCS-2
     */
    const gchar *text =
        "你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好"
        "你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好"
        "你好你好你好";
    const gchar *expected [] = {
        "你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好"
        "你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好"
        "你好你好你好",
        NULL
    };

    common_test_text_split (text, expected, MM_MODEM_CHARSET_UTF16);
}

static void
test_text_split_max_single_pdu_utf16 (void)
{
    /* NOTE: this string contains 35 Bhaiksuki characters, each of
     * them requiring 4 bytes both in UTF-8 and in UTF-16 (140 bytes
     * in total). */
    const gchar *text =
        "𑰀𑰁𑰂𑰃𑰄𑰅𑰆𑰇𑰈𑰊𑰋𑰌𑰍𑰎𑰏𑰐𑰑𑰒𑰓𑰔𑰕𑰖𑰗𑰘𑰙𑰚𑰛𑰜𑰝𑰞𑰟𑰠𑰡𑰢𑰣";
    const gchar *expected [] = {
        "𑰀𑰁𑰂𑰃𑰄𑰅𑰆𑰇𑰈𑰊𑰋𑰌𑰍𑰎𑰏𑰐𑰑𑰒𑰓𑰔𑰕𑰖𑰗𑰘𑰙𑰚𑰛𑰜𑰝𑰞𑰟𑰠𑰡𑰢𑰣",
        NULL
    };

    common_test_text_split (text, expected, MM_MODEM_CHARSET_UTF16);
}

static void
test_text_split_two_pdu_gsm7 (void)
{
    const gchar *text =
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "01234567890123456789012345678901234567890";
    const gchar *expected [] = {
        /* First chunk */
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "012345678901234567890123456789012",
        /* Second chunk */
        "34567890",
        NULL
    };

    common_test_text_split (text, expected, MM_MODEM_CHARSET_GSM);
}

static void
test_text_split_two_pdu_gsm7_extended_chars (void)
{
    const gchar *text =
        "[123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "01234567890123456789012345678901234567890";
    const gchar *expected [] = {
        /* First chunk */
        "[123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "01234567890123456789012345678901",
        /* Second chunk */
        "234567890",
        NULL
    };

    common_test_text_split (text, expected, MM_MODEM_CHARSET_GSM);
}

static void
test_text_split_two_pdu_gsm7_extended_chars_middle1 (void)
{
    const gchar *text =
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890[23456789";
    const gchar *expected [] = {
        /* First chunk */
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890[",
        /* Second chunk */
        "23456789",
        NULL
    };

    common_test_text_split (text, expected, MM_MODEM_CHARSET_GSM);
}

static void
test_text_split_two_pdu_gsm7_extended_chars_middle2 (void)
{
    const gchar *text =
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "01234567890123456789012345678901]3456789";
    const gchar *expected [] = {
        /* First chunk */
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "0123456789012345678901234567890123456789"
        "01234567890123456789012345678901",
        /* Second chunk */
        "]3456789",
        NULL
    };

    common_test_text_split (text, expected, MM_MODEM_CHARSET_GSM);
}

static void
test_text_split_two_pdu_ucs2 (void)
{
    const gchar *text =
        "你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好"
        "你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好"
        "你好你好你好好";
    const gchar *expected [] = {
        /* First chunk */
        "你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好"
        "你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好你好"
        "你好你",
        /* Second chunk */
        "好你好好",
        NULL
    };

    common_test_text_split (text, expected, MM_MODEM_CHARSET_UTF16);
}

static void
test_text_split_two_pdu_utf16 (void)
{
    /* NOTE: this string contains 35 Bhaiksuki characters, each of
     * them requiring 4 bytes both in UTF-8 and in UTF-16 (140 bytes
     * in total) plus one ASCII char (encoded with 1 byte in UTF-8 and
     * 2 bytes in UTF-16), making it a total of 142 bytes when in
     * UTF-16 (so not fitting in one single PDU)
     *
     * When split in chunks, the last chunk will hold 2 Bhaiksuki
     * characters plus the last ASCII one (9 bytes in UTF-16) so that
     * the first chunk contains the leading 33 Bhaiksuki characters
     * (132 characters, less than 134) */
    const gchar *text =
        "𑰀𑰁𑰂𑰃𑰄𑰅𑰆𑰇𑰈𑰊𑰋𑰌𑰍𑰎𑰏𑰐𑰑𑰒𑰓𑰔𑰕𑰖𑰗𑰘𑰙𑰚𑰛𑰜𑰝𑰞𑰟𑰠𑰡𑰢𑰣a";
    const gchar *expected [] = {
        "𑰀𑰁𑰂𑰃𑰄𑰅𑰆𑰇𑰈𑰊𑰋𑰌𑰍𑰎𑰏𑰐𑰑𑰒𑰓𑰔𑰕𑰖𑰗𑰘𑰙𑰚𑰛𑰜𑰝𑰞𑰟𑰠𑰡",
        "𑰢𑰣a",
        NULL
    };

    common_test_text_split (text, expected, MM_MODEM_CHARSET_UTF16);
}

int main (int argc, char **argv)
{
    setlocale (LC_ALL, "");

    g_test_init (&argc, &argv, NULL);

    g_test_add_func ("/MM/charsets/gsm7/default-chars",          test_gsm7_default_chars);
    g_test_add_func ("/MM/charsets/gsm7/extended-chars",         test_gsm7_extended_chars);
    g_test_add_func ("/MM/charsets/gsm7/mixed-chars",            test_gsm7_mixed_chars);
    g_test_add_func ("/MM/charsets/gsm7/unpack/basic",           test_gsm7_unpack_basic);
    g_test_add_func ("/MM/charsets/gsm7/unpack/7-chars",         test_gsm7_unpack_7_chars);
    g_test_add_func ("/MM/charsets/gsm7/unpack/all-chars",       test_gsm7_unpack_all_chars);
    g_test_add_func ("/MM/charsets/gsm7/pack/basic",             test_gsm7_pack_basic);
    g_test_add_func ("/MM/charsets/gsm7/pack/7-chars",           test_gsm7_pack_7_chars);
    g_test_add_func ("/MM/charsets/gsm7/pack/all-chars",         test_gsm7_pack_all_chars);
    g_test_add_func ("/MM/charsets/gsm7/pack/24-chars",          test_gsm7_pack_24_chars);
    g_test_add_func ("/MM/charsets/gsm7/pack/last-septet-alone", test_gsm7_pack_last_septet_alone);
    g_test_add_func ("/MM/charsets/gsm7/pack/7-chars-offset",    test_gsm7_pack_7_chars_offset);

    g_test_add_func ("/MM/charsets/str-from-to/ucs2",         test_str_ucs2_to_from_utf8);
    g_test_add_func ("/MM/charsets/str-from-to/gsm",          test_str_gsm_to_from_utf8);
    g_test_add_func ("/MM/charsets/str-from-to/gsm-with-at",  test_str_gsm_to_from_utf8_with_at);

    g_test_add_func ("/MM/charsets/can-convert-to", test_charset_can_covert_to);

    g_test_add_func ("/MM/charsets/text-split/gsm7/short",                          test_text_split_short_gsm7);
    g_test_add_func ("/MM/charsets/text-split/ucs2/short",                          test_text_split_short_ucs2);
    g_test_add_func ("/MM/charsets/text-split/utf16/short",                         test_text_split_short_utf16);
    g_test_add_func ("/MM/charsets/text-split/gsm7/max-single-pdu",                 test_text_split_max_single_pdu_gsm7);
    g_test_add_func ("/MM/charsets/text-split/gsm7/max-single-pdu-extended-chars",  test_text_split_max_single_pdu_gsm7_extended_chars);
    g_test_add_func ("/MM/charsets/text-split/ucs2/max-single-pdu",                 test_text_split_max_single_pdu_ucs2);
    g_test_add_func ("/MM/charsets/text-split/utf16/max-single-pdu",                test_text_split_max_single_pdu_utf16);
    g_test_add_func ("/MM/charsets/text-split/gsm7/two-pdu",                        test_text_split_two_pdu_gsm7);
    g_test_add_func ("/MM/charsets/text-split/gsm7/two-pdu-extended-chars",         test_text_split_two_pdu_gsm7_extended_chars);
    g_test_add_func ("/MM/charsets/text-split/gsm7/two-pdu-extended-chars_mid1",    test_text_split_two_pdu_gsm7_extended_chars_middle1);
    g_test_add_func ("/MM/charsets/text-split/gsm7/two-pdu-extended-chars_mid2",    test_text_split_two_pdu_gsm7_extended_chars_middle2);
    g_test_add_func ("/MM/charsets/text-split/ucs2/two-pdu",                        test_text_split_two_pdu_ucs2);
    g_test_add_func ("/MM/charsets/text-split/utf16/two-pdu",                       test_text_split_two_pdu_utf16);

    return g_test_run ();
}