--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/zint/backend/tests/test_gb2312.c	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,491 @@
+/*
+    libzint - the open source barcode library
+    Copyright (C) 2019-2023 Robin Stuart <rstuart114@gmail.com>
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+    3. Neither the name of the project nor the names of its contributors
+       may be used to endorse or promote products derived from this software
+       without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+    FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+    DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+    OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+    OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+    SUCH DAMAGE.
+ */
+/* SPDX-License-Identifier: BSD-3-Clause */
+
+#include "testcommon.h"
+#include "test_gb2312_tab.h"
+#include "../eci.h"
+/* For local "private" testing using previous libiconv adaptation, not included for licensing reasons */
+#if 0
+#define TEST_JUST_SAY_GNO
+#endif
+#ifdef TEST_JUST_SAY_GNO
+#include "../just_say_gno/gb2312_gnu.c"
+#endif
+
+INTERNAL int u_gb2312_int_test(const unsigned int u, unsigned int *d);
+
+/* As control convert to GB 2312 using simple table generated from unicode.org GB2312.TXT plus simple processing */
+/* GB2312.TXT no longer on unicode.org site but available from https://haible.de/bruno/charsets/conversion-tables/GB2312.html */
+static int u_gb2312_int2(unsigned int u, unsigned int *d) {
+    int tab_length, start_i, end_i;
+    int i;
+
+    if (u < 0x80) {
+        *d = (unsigned char) u;
+        return 1;
+    }
+    /* Shortcut */
+    if ((u > 0x0451 && u < 0x2015) || (u > 0x3229 && u < 0x4E00) || (u > 0x9FA0 && u < 0xFF01) || u > 0xFFE5) {
+        return 0;
+    }
+    tab_length = ARRAY_SIZE(test_gb2312_tab);
+    start_i = test_gb2312_tab_ind[u >> 10];
+    end_i = start_i + 0x800 > tab_length ? tab_length : start_i + 0x800;
+    for (i = start_i; i < end_i; i += 2) {
+        if (test_gb2312_tab[i + 1] == u) {
+            *d = test_gb2312_tab[i] + 0x8080; /* Table in GB 2312 not EUC-CN */
+            return 2;
+        }
+    }
+    return 0;
+}
+
+#include <time.h>
+
+#define TEST_PERF_TIME(arg)     (((arg) * 1000.0) / CLOCKS_PER_SEC)
+#define TEST_PERF_RATIO(a1, a2) (a2 ? TEST_PERF_TIME(a1) / TEST_PERF_TIME(a2) : 0)
+
+#ifdef TEST_JUST_SAY_GNO
+#define TEST_INT_PERF_ITERATIONS    250
+#endif
+
+static void test_u_gb2312_int(const testCtx *const p_ctx) {
+    int debug = p_ctx->debug;
+
+    int ret, ret2;
+    unsigned int val, val2;
+    unsigned int i;
+
+#ifdef TEST_JUST_SAY_GNO
+    int j;
+    clock_t start;
+    clock_t total = 0, total_gno = 0;
+#else
+    (void)debug;
+#endif
+
+    testStart("test_u_gb2312_int");
+
+#ifdef TEST_JUST_SAY_GNO
+    if ((debug & ZINT_DEBUG_TEST_PERFORMANCE)) { /* -d 256 */
+        printf("test_u_gb2312_int perf iterations: %d\n", TEST_INT_PERF_ITERATIONS);
+    }
+#endif
+
+    for (i = 0; i < 0xFFFE; i++) {
+        if (i >= 0xD800 && i <= 0xDFFF) { /* UTF-16 surrogates */
+            continue;
+        }
+        if (testContinue(p_ctx, i)) continue;
+        val = val2 = 0;
+        ret = u_gb2312_int_test(i, &val);
+        ret2 = u_gb2312_int2(i, &val2);
+        assert_equal(ret, ret2, "i:%d 0x%04X ret %d != ret2 %d, val 0x%04X, val2 0x%04X\n", (int) i, i, ret, ret2, val, val2);
+        if (ret2) {
+            assert_equal(val, val2, "i:%d 0x%04X val 0x%04X != val2 0x%04X\n", (int) i, i, val, val2);
+        }
+#ifdef TEST_JUST_SAY_GNO
+        /* `gb2312_wctomb_zint()` doesn't handle ASCII; and ignore duplicate mappings, no longer done */
+        if (i >= 0x80 && i != 0xB7 && i != 0x2014) {
+            if (!(debug & ZINT_DEBUG_TEST_PERFORMANCE)) { /* -d 256 */
+                val2 = 0;
+                ret2 = gb2312_wctomb_zint(&val2, i);
+            } else {
+                for (j = 0; j < TEST_INT_PERF_ITERATIONS; j++) {
+                    val = val2 = 0;
+
+                    start = clock();
+                    ret = u_gb2312_int_test(i, &val);
+                    total += clock() - start;
+
+                    start = clock();
+                    ret2 = gb2312_wctomb_zint(&val2, i);
+                    total_gno += clock() - start;
+                }
+            }
+
+            assert_equal(ret, ret2, "i:%d 0x%04X ret %d != ret2 %d, val 0x%04X, val2 0x%04X\n", (int) i, i, ret, ret2, val, val2);
+            if (ret2) {
+                assert_equal(val, val2, "i:%d 0x%04X val 0x%04X != val2 0x%04X\n", (int) i, i, val, val2);
+            }
+        }
+#endif
+    }
+
+#ifdef TEST_JUST_SAY_GNO
+    if ((debug & ZINT_DEBUG_TEST_PERFORMANCE)) { /* -d 256 */
+        printf("test_u_gb2312_int perf totals: new % 8gms, gno % 8gms ratio %g\n",
+                TEST_PERF_TIME(total), TEST_PERF_TIME(total_gno), TEST_PERF_RATIO(total, total_gno));
+    }
+#endif
+
+    testFinish();
+}
+
+static void test_gb2312_utf8(const testCtx *const p_ctx) {
+
+    struct item {
+        char *data;
+        int length;
+        int ret;
+        int ret_length;
+        unsigned int expected_gbdata[20];
+        char *comment;
+    };
+    /*
+       é U+00E9 in ISO 8859-1 plus other ISO 8859 (but not in ISO 8859-7 or ISO 8859-11), Win 1250 plus other Win, in GB 2312 0xA8A6, UTF-8 C3A9
+       β U+03B2 in ISO 8859-7 Greek (but not other ISO 8859 or Win page), in GB 2312 0xA6C2, UTF-8 CEB2
+       ¤ U+00A4 in ISO 8859-1 plus other ISO 8859 (but not in ISO 8859-7 or ISO 8859-11), Win 1250 plus other Win, in GB 2312 0xA1E8, UTF-8 C2A4
+       ¥ U+00A5 in ISO 8859-1 0xA5, not in GB 2312, UTF-8 C2A5
+       ・ U+30FB katakana middle dot, not in any ISO or Win page, in GB 2312 "GB2312.TXT" 0xA1A4, duplicate of mapping of U+00B7, UTF-8 E383BB
+       · U+00B7 middle dot in ISO 8859-1 0xB7, in GB 2312 "GB 18030 subset" 0xA1A4, duplicate of mapping of U+30FB, UTF-8 C2B7
+       ― U+2015 horizontal bar in ISO 8859-7 Greek and ISO 8859-10 Nordic, not in any Win page, in GB 2312 "GB2312.TXT" 0xA1AA, duplicate of mapping of U+2014, UTF-8 E28095
+       — U+2014 em dash, not in any ISO, in Win 1250 and other Win, in GB 2312 "GB 18030 subset" 0xA1AA, duplicate of mapping of U+2015, UTF-8 E28094
+    */
+    /* s/\/\*[ 0-9]*\*\//\=printf("\/\*%3d*\/", line(".") - line("'<")): */
+    struct item data[] = {
+        /*  0*/ { "é", -1, 0, 1, { 0xA8A6 }, "" },
+        /*  1*/ { "β", -1, 0, 1, { 0xA6C2 }, "" },
+        /*  2*/ { "¤", -1, 0, 1, { 0xA1E8 }, "" },
+        /*  3*/ { "¥", -1, ZINT_ERROR_INVALID_DATA, -1, {0}, "" },
+        /*  4*/ { "・", -1, 0, 1, { 0xA1A4 }, "GB2312.TXT mapping" },
+        /*  5*/ { "·", -1, ZINT_ERROR_INVALID_DATA, -1, {0}, "No longer does GB 18030 subset mapping" },
+        /*  6*/ { "―", -1, 0, 1, { 0xA1AA }, "GB2312.TXT mapping" },
+        /*  7*/ { "—", -1, ZINT_ERROR_INVALID_DATA, -1, {0}, "No longer does GB 18030 subset mapping" },
+        /*  8*/ { "aβc・―é―Z", -1, 0, 8, { 'a', 0xA6C2, 'c', 0xA1A4, 0xA1AA, 0xA8A6, 0xA1AA, 'Z' }, "" },
+        /*  9*/ { "aβc・·—é—Z", -1, ZINT_ERROR_INVALID_DATA, -1, {0}, "No longer does GB 18030 mappings" },
+        /* 10*/ { "\200", -1, ZINT_ERROR_INVALID_DATA, -1, {0}, "Invalid UTF-8" },
+    };
+    int data_size = ARRAY_SIZE(data);
+    int i, length, ret;
+
+    struct zint_symbol symbol = {0};
+    unsigned int gbdata[20];
+
+    testStart("test_gb2312_utf8");
+
+    for (i = 0; i < data_size; i++) {
+        int ret_length;
+
+        if (testContinue(p_ctx, i)) continue;
+
+        length = data[i].length == -1 ? (int) strlen(data[i].data) : data[i].length;
+        ret_length = length;
+
+        ret = gb2312_utf8(&symbol, (unsigned char *) data[i].data, &ret_length, gbdata);
+        assert_equal(ret, data[i].ret, "i:%d ret %d != %d (%s)\n", i, ret, data[i].ret, symbol.errtxt);
+        if (ret == 0) {
+            int j;
+            assert_equal(ret_length, data[i].ret_length, "i:%d ret_length %d != %d\n", i, ret_length, data[i].ret_length);
+            for (j = 0; j < (int) ret_length; j++) {
+                assert_equal(gbdata[j], data[i].expected_gbdata[j], "i:%d gbdata[%d] %04X != %04X\n", i, j, gbdata[j], data[i].expected_gbdata[j]);
+            }
+        }
+    }
+
+    testFinish();
+}
+
+static void test_gb2312_utf8_to_eci(const testCtx *const p_ctx) {
+
+    struct item {
+        int eci;
+        int full_multibyte;
+        char *data;
+        int length;
+        int ret;
+        int ret_length;
+        unsigned int expected_gbdata[20];
+        char *comment;
+    };
+    /*
+       é U+00E9 in ISO 8859-1 0xE9, Win 1250 plus other Win, in GRIDMATRIX Chinese mode first byte range 0xA1..A9, 0xB0..F7
+       β U+03B2 in ISO 8859-7 Greek 0xE2 (but not other ISO 8859 or Win page)
+       ¥ U+00A5 in ISO 8859-1 0xA5, in first byte range 0xA1..A9, 0xB0..F7
+       NBSP U+00A0 in ISO 8859-1 0xA0, outside first byte and second byte range 0xA1..FE, UTF-8 C2A0 (\302\240)
+       ¡ U+00A1 in ISO 8859-1 0xA1, in first byte range
+       © U+00A9 in ISO 8859-1 0xA9, in first byte range
+       ª U+00AA in ISO 8859-1 0xAA, outside first byte range
+       ¯ U+00AF in ISO 8859-1 0xAF, outside first byte range
+       ° U+00B0 in ISO 8859-1 0xB0, in first byte range
+       ÷ U+00F7 in ISO 8859-1 0xF7, in first byte range
+       ø U+00F8 in ISO 8859-1 0xF8, outside first byte range
+       ÿ U+00FF in ISO 8859-1 0xFF, outside first byte and second byte range
+    */
+    /* s/\/\*[ 0-9]*\*\//\=printf("\/\*%3d*\/", line(".") - line("'<")): */
+    struct item data[] = {
+        /*  0*/ { 3, 0, "é", -1, 0, 1, { 0xE9 }, "Not full multibyte" },
+        /*  1*/ { 3, 1, "é", -1, 0, 1, { 0xE9 }, "First byte in range but only one byte" },
+        /*  2*/ { 3, 0, "β", -1, ZINT_ERROR_INVALID_DATA, -1, {0}, "Not in ECI 3 (ISO 8859-1)" },
+        /*  3*/ { 3, 1, "β", -1, ZINT_ERROR_INVALID_DATA, -1, {0}, "Not in ECI 3 (ISO 8859-1)" },
+        /*  4*/ { 9, 0, "β", -1, 0, 1, { 0xE2 }, "In ECI 9 (ISO 8859-7)" },
+        /*  5*/ { 9, 1, "β", -1, 0, 1, { 0xE2 }, "In ECI 9 (ISO 8859-7)" },
+        /*  6*/ { 3, 0, "¥", -1, 0, 1, { 0xA5 }, "Not full multibyte" },
+        /*  7*/ { 3, 1, "¥", -1, 0, 1, { 0xA5 }, "First byte in range but only one byte" },
+        /*  8*/ { 3, 0, "¡é", -1, 0, 2, { 0xA1, 0xE9 }, "Not full multibyte" },
+        /*  9*/ { 3, 1, "¡é", -1, 0, 1, { 0xA1E9 }, "In GRIDMATRIX Chinese mode range" },
+        /* 10*/ { 3, 0, "¡\302\240", -1, 0, 2, { 0xA1, 0xA0 }, "Not full multibyte" },
+        /* 11*/ { 3, 1, "¡\302\240", -1, 0, 2, { 0xA1, 0xA0 }, "First byte in range but not second" },
+        /* 12*/ { 3, 0, "©é", -1, 0, 2, { 0xA9, 0xE9 }, "Not full multibyte" },
+        /* 13*/ { 3, 1, "©é", -1, 0, 1, { 0xA9E9 }, "In GRIDMATRIX Chinese mode range" },
+        /* 14*/ { 3, 0, "©ÿ", -1, 0, 2, { 0xA9, 0xFF }, "Not full multibyte" },
+        /* 15*/ { 3, 1, "©ÿ", -1, 0, 2, { 0xA9, 0xFF }, "First byte in range but not second" },
+        /* 16*/ { 3, 0, "éaé驪ª©¯é°°é÷éø", -1, 0, 16, { 0xE9, 0x61, 0xE9, 0xE9, 0xA9, 0xAA, 0xAA, 0xA9, 0xAF, 0xE9, 0xB0, 0xB0, 0xE9, 0xF7, 0xE9, 0xF8 }, "" },
+        /* 17*/ { 3, 1, "éaé驪ª©¯é°°é÷éø", -1, 0, 10, { 0xE9, 0x61, 0xE9E9, 0xA9AA, 0xAA, 0xA9AF, 0xE9B0, 0xB0E9, 0xF7E9, 0xF8 }, "" },
+        /* 18*/ { 20, 0, "\\\\", -1, 0, 4, { 0x81, 0x5F, 0x81, 0x5F }, "Shift JIS reverse solidus (backslash) mapping from ASCII to double byte" },
+        /* 19*/ { 20, 1, "\\\\", -1, 0, 4, { 0x81, 0x5F, 0x81, 0x5F }, "Shift JIS outside GB 2312 Hanzi mode range" },
+        /* 20*/ { 20, 0, "爍", -1, 0, 2, { 0xE0, 0xA1 }, "Shift JIS U+720D" },
+        /* 21*/ { 20, 1, "爍", -1, 0, 1, { 0xE0A1 }, "Shift JIS in GB 2312 Hanzi mode range" },
+        /* 22*/ { 25, 0, "12", -1, 0, 4, { 0x00, 0x31, 0x00, 0x32 }, "UCS-2BE ASCII" },
+        /* 23*/ { 25, 0, "", -1, 0, 4, { 0x00, 0x81, 0x00, 0x81 }, "UCS-2BE U+0081" },
+        /* 24*/ { 25, 1, "", -1, 0, 4, { 0x00, 0x81, 0x00, 0x81 }, "UCS-2BE outside GB 2312 Hanzi mode range" },
+        /* 25*/ { 25, 0, "ꆩꆩ", -1, 0, 4, { 0xA1, 0xA9, 0xA1, 0xA9 }, "UCS-2BE U+A1A9" },
+        /* 26*/ { 25, 1, "ꆩꆩ", -1, 0, 2, { 0xA1A9, 0xA1A9 }, "UCS-2BE in GB 2312 Hanzi mode range" },
+        /* 27*/ { 25, 0, "膀膀", -1, 0, 4, { 0x81, 0x80, 0x81, 0x80 }, "UCS-2BE U+8180" },
+        /* 28*/ { 25, 1, "膀膀", -1, 0, 4, { 0x81, 0x80, 0x81, 0x80 }, "UCS-2BE outside GB 2312 Hanzi mode range (but in GB 18030 range)" },
+        /* 29*/ { 28, 0, "¢¢", -1, 0, 4, { 0xA2, 0x46, 0xA2, 0x46 }, "Big5 U+00A2" },
+        /* 30*/ { 28, 1, "¢¢", -1, 0, 4, { 0xA2, 0x46, 0xA2, 0x46 }, "Big5 outside GB 2312 Hanzi mode range (but in GB 18030 range)" },
+        /* 31*/ { 28, 0, "陛", -1, 0, 2, { 0xB0, 0xA1 }, "Big5 U+965B" },
+        /* 32*/ { 28, 1, "陛", -1, 0, 1, { 0xB0A1 }, "Big5 in GB 2312 Hanzi mode range" },
+        /* 33*/ { 29, 0, "¨¨", -1, 0, 2, { 0xA1A7, 0xA1A7 }, "GB 2312 U+00A8" },
+        /* 34*/ { 29, 1, "¨¨", -1, 0, 2, { 0xA1A7, 0xA1A7 }, "GB 2312" },
+        /* 35*/ { 29, 0, "崂", -1, 0, 1, { 0xE1C0 }, "GB 2312 U+5D02" },
+        /* 36*/ { 29, 1, "崂", -1, 0, 1, { 0xE1C0 }, "GB 2312" },
+        /* 37*/ { 29, 0, "・", -1, 0, 1, { 0xA1A4 }, "GB 2312 U+30FB" },
+        /* 38*/ { 29, 1, "・", -1, 0, 1, { 0xA1A4 }, "GB 2312" },
+        /* 39*/ { 29, 0, "釦", -1, ZINT_ERROR_INVALID_DATA, -1, {0}, "GB 18030 U+91E6 not in GB 2312" },
+        /* 40*/ { 30, 0, "¡¡", -1, 0, 4, { 0x22 + 0x80, 0x2E + 0x80, 0x22 + 0x80, 0x2E + 0x80 }, "EUC-KR U+00A1 (0xA2AE)" },
+        /* 41*/ { 30, 1, "¡¡", -1, 0, 2, { 0x222E + 0x8080, 0x222E + 0x8080 }, "EUC-KR 0xA2AE in GB 2312 Hanzi mode range" },
+        /* 42*/ { 30, 0, "詰", -1, 0, 2, { 0x7D + 0x80, 0x7E + 0x80 }, "EUC-KR U+8A70 (0xFDFE)" },
+        /* 43*/ { 30, 1, "詰", -1, 0, 2, { 0x7D + 0x80, 0x7E + 0x80 }, "EUC-KR 0xFDFE > 0xF7FE so not in GB 2312 Hanzi mode range" },
+    };
+    int data_size = ARRAY_SIZE(data);
+    int i, length, ret;
+
+    unsigned int gbdata[20];
+
+    testStart("test_gb2312_utf8_to_eci");
+
+    for (i = 0; i < data_size; i++) {
+        int ret_length;
+
+        if (testContinue(p_ctx, i)) continue;
+
+        length = data[i].length == -1 ? (int) strlen(data[i].data) : data[i].length;
+        ret_length = length;
+
+        ret = gb2312_utf8_to_eci(data[i].eci, (unsigned char *) data[i].data, &ret_length, gbdata, data[i].full_multibyte);
+        assert_equal(ret, data[i].ret, "i:%d ret %d != %d\n", i, ret, data[i].ret);
+        if (ret == 0) {
+            int j;
+            assert_equal(ret_length, data[i].ret_length, "i:%d ret_length %d != %d\n", i, ret_length, data[i].ret_length);
+            for (j = 0; j < (int) ret_length; j++) {
+                assert_equal(gbdata[j], data[i].expected_gbdata[j], "i:%d gbdata[%d] 0x%04X != 0x%04X\n", i, j, gbdata[j], data[i].expected_gbdata[j]);
+            }
+        }
+    }
+
+    testFinish();
+}
+
+INTERNAL void gb2312_cpy_test(const unsigned char source[], int *p_length, unsigned int *ddata,
+                const int full_multibyte);
+
+static void test_gb2312_cpy(const testCtx *const p_ctx) {
+
+    struct item {
+        int full_multibyte;
+        char *data;
+        int length;
+        int ret;
+        int ret_length;
+        unsigned int expected_gbdata[20];
+        char *comment;
+    };
+    /* s/\/\*[ 0-9]*\*\//\=printf("\/\*%3d*\/", line(".") - line("'<")): */
+    struct item data[] = {
+        /*  0*/ { 0, "\351", -1, 0, 1, { 0xE9 }, "Not full multibyte" },
+        /*  1*/ { 1, "\351", -1, 0, 1, { 0xE9 }, "In GRIDMATRIX Chinese mode first-byte range but only one byte" },
+        /*  2*/ { 0, "\351\241", -1, 0, 2, { 0xE9, 0xA1 }, "Not full multibyte" },
+        /*  3*/ { 1, "\351\241", -1, 0, 1, { 0xE9A1 }, "In GRIDMATRIX Chinese range" },
+        /*  4*/ { 0, "\241", -1, 0, 1, { 0xA1 }, "Not full multibyte" },
+        /*  5*/ { 1, "\241", -1, 0, 1, { 0xA1 }, "In first-byte range but only one byte" },
+        /*  6*/ { 0, "\241\241", -1, 0, 2, { 0xA1, 0xA1 }, "Not full multibyte" },
+        /*  7*/ { 1, "\241\241", -1, 0, 1, { 0xA1A1 }, "In range" },
+        /*  8*/ { 0, "\241\240\241\376\367\376\367\377", -1, 0, 8, { 0xA1, 0xA0, 0xA1, 0xFE, 0xF7, 0xFE, 0xF7, 0xFF }, "" },
+        /*  9*/ { 1, "\241\240\241\376\367\376\367\377", -1, 0, 6, { 0xA1, 0xA0, 0xA1FE, 0xF7FE, 0xF7, 0xFF }, "" },
+    };
+    int data_size = ARRAY_SIZE(data);
+    int i, length;
+
+    unsigned int gbdata[20];
+
+    testStart("test_gb2312_cpy");
+
+    for (i = 0; i < data_size; i++) {
+        int ret_length;
+        int j;
+
+        if (testContinue(p_ctx, i)) continue;
+
+        length = data[i].length == -1 ? (int) strlen(data[i].data) : data[i].length;
+        ret_length = length;
+
+        gb2312_cpy_test((unsigned char *) data[i].data, &ret_length, gbdata, data[i].full_multibyte);
+        assert_equal(ret_length, data[i].ret_length, "i:%d ret_length %d != %d\n", i, ret_length, data[i].ret_length);
+        for (j = 0; j < (int) ret_length; j++) {
+            assert_equal(gbdata[j], data[i].expected_gbdata[j], "i:%d gbdata[%d] %04X != %04X\n", i, j, gbdata[j], data[i].expected_gbdata[j]);
+        }
+    }
+
+    testFinish();
+}
+
+#define TEST_PERF_ITER_MILLES   100
+#define TEST_PERF_ITERATIONS    (TEST_PERF_ITER_MILLES * 1000)
+
+/* Not a real test, just performance indicator */
+static void test_perf(const testCtx *const p_ctx) {
+    int debug = p_ctx->debug;
+
+    struct item {
+        char *data;
+        int ret;
+
+        char *comment;
+    };
+    struct item data[] = {
+        /*  0*/ { "1234567890", 0, "10 numerics" },
+        /*  1*/ { "条码北京條碼པེ་ཅིང།バーコード바코드", 0, "Small various code pages" },
+        /*  2*/ { "Summer Palace Ticket for 6 June 2015 13:00;2015年6月6日夜01時00分PM頤和園のチケット;2015년6월6일13시오후여름궁전티켓.2015年6月6号下午13:00的颐和园门票;", 0, "Small mixed ASCII/Hanzi" },
+        /*  3*/ { "汉信码标准\015\012中国物品编码中心\015\012北京网路畅想科技发展有限公司\015\012张成海、赵楠、黄燕滨、罗秋科、王毅、张铎、王越\015\012施煜、边峥、修兴强\015\012汉信码标准\015\012中国物品编码中心\015\012北京网路畅想科技发展有限公司", 0, "Bigger mixed" },
+    };
+    int data_size = ARRAY_SIZE(data);
+    int i, length, ret;
+
+    struct zint_symbol symbol = {0};
+    int ret_length;
+#ifdef TEST_JUST_SAY_GNO
+    int ret_length2;
+#endif
+    unsigned int ddata[8192];
+    unsigned char dest[8192];
+    int ret2 = 0;
+#ifdef TEST_JUST_SAY_GNO
+    unsigned int ddata2[8192];
+    unsigned char dest2[8192];
+#endif
+
+    clock_t start;
+    clock_t total = 0, total_gno = 0, total_eci = 0, total_eci_gno = 0;
+    clock_t diff, diff_gno, diff_eci, diff_eci_gno;
+    int comment_max = 0;
+
+    if (!(debug & ZINT_DEBUG_TEST_PERFORMANCE)) { /* -d 256 */
+        return;
+    }
+
+    for (i = 0; i < data_size; i++) if ((int) strlen(data[i].comment) > comment_max) comment_max = (int) strlen(data[i].comment);
+
+    printf("Iterations %d\n", TEST_PERF_ITERATIONS);
+
+    for (i = 0; i < data_size; i++) {
+        int j;
+
+        if (testContinue(p_ctx, i)) continue;
+
+        length = (int) strlen(data[i].data);
+
+        diff = diff_gno = diff_eci = diff_eci_gno = 0;
+
+        for (j = 0; j < TEST_PERF_ITERATIONS; j++) {
+            ret_length = length;
+
+            start = clock();
+            ret = gb2312_utf8(&symbol, (unsigned char *) data[i].data, &ret_length, ddata);
+            diff += clock() - start;
+
+#ifdef TEST_JUST_SAY_GNO
+            ret_length2 = length;
+            start = clock();
+            ret2 = gb2312_utf8_wctomb(&symbol, (unsigned char *) data[i].data, &ret_length2, ddata2);
+            diff_gno += clock() - start;
+#endif
+
+            ret_length = length;
+
+            start = clock();
+            (void)utf8_to_eci(29, (unsigned char *) data[i].data, dest, &ret_length);
+            diff_eci += clock() - start;
+
+#ifdef TEST_JUST_SAY_GNO
+            ret_length2 = length;
+            start = clock();
+            (void)utf8_to_eci_wctomb(29, (unsigned char *) data[i].data, dest2, &ret_length2);
+            diff_eci_gno += clock() - start;
+#endif
+        }
+        assert_equal(ret, ret2, "i:%d ret %d != ret2 %d\n", (int) i, ret, ret2);
+
+        printf("%*s: new % 8gms, gno % 8gms ratio % 9g | eci % 8gms, gno % 8gms ratio %g\n", comment_max, data[i].comment,
+                TEST_PERF_TIME(diff), TEST_PERF_TIME(diff_gno), TEST_PERF_RATIO(diff, diff_gno),
+                TEST_PERF_TIME(diff_eci), TEST_PERF_TIME(diff_eci_gno), TEST_PERF_RATIO(diff_eci, diff_eci_gno));
+
+        total += diff;
+        total_gno += diff_gno;
+        total_eci += diff_eci;
+        total_eci_gno += diff_eci_gno;
+    }
+    if (p_ctx->index == -1) {
+        printf("%*s: new % 8gms, gno % 8gms ratio % 9g | eci % 8gms, gno % 8gms ratio %g\n", comment_max, "totals",
+                TEST_PERF_TIME(total), TEST_PERF_TIME(total_gno), TEST_PERF_RATIO(total, total_gno),
+                TEST_PERF_TIME(total_eci), TEST_PERF_TIME(total_eci_gno), TEST_PERF_RATIO(total_eci, total_eci_gno));
+    }
+}
+
+int main(int argc, char *argv[]) {
+
+    testFunction funcs[] = { /* name, func */
+        { "test_u_gb2312_int", test_u_gb2312_int },
+        { "test_gb2312_utf8", test_gb2312_utf8 },
+        { "test_gb2312_utf8_to_eci", test_gb2312_utf8_to_eci },
+        { "test_gb2312_cpy", test_gb2312_cpy },
+        { "test_perf", test_perf },
+    };
+
+    testRun(argc, argv, funcs, ARRAY_SIZE(funcs));
+
+    testReport();
+
+    return 0;
+}
+
+/* vim: set ts=4 sw=4 et : */