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util/charset/torture: ensure each cp850 high bytes is 3 utf8 bytes

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Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This commit is contained in:
Douglas Bagnall 2019-05-10 23:04:02 +12:00 committed by Andrew Bartlett
parent 103d248bee
commit ac9333cb91
1 changed files with 52 additions and 0 deletions
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52
lib/util/charset/tests/convert_string.c
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@ -97,6 +97,57 @@ static const char *gd_cp850_lower_base64 = "Z4FudGhlciBkZXNjaG5lcg==";
static const char *gd_iso8859_1_base64 = "R/xudGhlciBEZXNjaG5lcg==";
static const char *gd_utf16le_base64 = "RwD8AG4AdABoAGUAcgAgAEQAZQBzAGMAaABuAGUAcgA=";
/*
* These cp850 bytes correspond to high Unicode codes, stretching out to
* 3-byte sequences in utf-8.
*/
static const char *cp850_high_points = "\xb9\xba\xbb\xbc\xcd\xce";
static const char *utf8_high_points = "╣║╗╝═╬";
static bool test_cp850_high_points(struct torture_context *tctx)
{
struct smb_iconv_handle *iconv_handle = NULL;
DATA_BLOB cp850 = data_blob_string_const(cp850_high_points);
DATA_BLOB utf8;
DATA_BLOB cp850_return;
iconv_handle = get_iconv_testing_handle(tctx, "CP850", "UTF8",
lpcfg_parm_bool(tctx->lp_ctx,
NULL,
"iconv",
"use_builtin_handlers",
true));
torture_assert(tctx, iconv_handle, "creating iconv handle");
torture_assert(tctx,
convert_string_talloc_handle(tctx, iconv_handle,
CH_DOS, CH_UTF8,
cp850.data, cp850.length,
(void *)&utf8.data, &utf8.length),
"conversion from CP850 to UTF-8");
torture_assert(tctx, utf8.length == cp850.length * 3,
"CP850 high bytes expand to the right size");
torture_assert(tctx,
memcmp(utf8.data, utf8_high_points, utf8.length) == 0,
"cp850 converted to utf8 matches expected value");
torture_assert(tctx,
convert_string_talloc_handle(tctx, iconv_handle,
CH_UTF8, CH_DOS,
utf8.data, utf8.length,
(void *)&cp850_return.data,
&cp850_return.length),
"conversion from UTF-8 back to CP850");
torture_assert(tctx, data_blob_cmp(&cp850_return, &cp850) == 0,
"UTF-8 returned to CP850 matches the original");
return true;
}
static bool test_gd_iso8859_cp850_handle(struct torture_context *tctx)
{
struct smb_iconv_handle *iconv_handle;
@ -1704,6 +1755,7 @@ static bool test_plato_case(struct torture_context *tctx)
struct torture_suite *torture_local_convert_string_handle(TALLOC_CTX *mem_ctx)
{
struct torture_suite *suite = torture_suite_create(mem_ctx, "convert_string_handle");
torture_suite_add_simple_test(suite, "cp850 high points", test_cp850_high_points);
torture_suite_add_simple_test(suite, "gd_ascii", test_gd_ascii_handle);
torture_suite_add_simple_test(suite, "gd_minus_1", test_gd_minus_1_handle);