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Tests: Fix warnings from clang --Wassign-enum.

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Explicitly casting the integer to lzma_check silences the warning.
Since such an invalid value is needed in multiple tests, a constant
INVALID_LZMA_CHECK_ID was added to tests.h.

The use of 0x1000 for lzma_block.check wasn't optimal as if
the underlying type is a char then 0x1000 will be truncated to 0.
However, in these test cases the value is ignored, thus even with
such truncation the test would have passed.
This commit is contained in:
Lasse Collin 2023-01-12 04:14:18 +02:00 committed by Jia Tan
parent 34e13ce015
commit c47ecd6d39
4 changed files with 17 additions and 8 deletions
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6
tests/test_block_header.c
View file

@ -189,7 +189,7 @@ test_lzma_block_header_size(void)
// Use an invalid block option. The check type isn't stored in
// the Block Header and so _header_size ignores it.
block.check = 0x1000;
block.check = INVALID_LZMA_CHECK_ID;
block.ignore_check = false;
assert_lzma_ret(lzma_block_header_size(&block), LZMA_OK);
@ -270,7 +270,7 @@ test_lzma_block_header_encode(void)
block.uncompressed_size = LZMA_VLI_UNKNOWN;
// Test invalid block check
block.check = 0x1000;
block.check = INVALID_LZMA_CHECK_ID;
block.ignore_check = false;
assert_lzma_ret(lzma_block_header_encode(&block, out),
LZMA_PROG_ERROR);
@ -466,7 +466,7 @@ test_lzma_block_header_decode(void)
assert_uint_eq(decoded_block.version, 1);
// Test bad check type
decoded_block.check = LZMA_CHECK_ID_MAX + 1;
decoded_block.check = INVALID_LZMA_CHECK_ID;
assert_lzma_ret(lzma_block_header_decode(&decoded_block, NULL, out),
LZMA_PROG_ERROR);
decoded_block.check = LZMA_CHECK_CRC32;

2
tests/test_check.c
View file

@ -176,7 +176,7 @@ test_lzma_check_size(void)
for (lzma_check i = 0; i < ARRAY_SIZE(expected_check_sizes); i++)
assert_uint_eq(expected_check_sizes[i], lzma_check_size(i));
assert_uint_eq(lzma_check_size(LZMA_CHECK_ID_MAX + 1), UINT32_MAX);
assert_uint_eq(lzma_check_size(INVALID_LZMA_CHECK_ID), UINT32_MAX);
}

8
tests/test_stream_flags.c
View file

@ -87,7 +87,7 @@ test_lzma_stream_header_encode(void)
flags.version = 0;
// Should fail if Check ID is invalid
flags.check = LZMA_CHECK_ID_MAX + 1;
flags.check = INVALID_LZMA_CHECK_ID;
assert_lzma_ret(lzma_stream_header_encode(&flags, header),
LZMA_PROG_ERROR);
flags.check = LZMA_CHECK_CRC32;
@ -170,7 +170,7 @@ test_lzma_stream_footer_encode(void)
flags.version = 0;
// Should fail if Check ID is invalid
flags.check = LZMA_CHECK_ID_MAX + 1;
flags.check = INVALID_LZMA_CHECK_ID;
assert_lzma_ret(lzma_stream_footer_encode(&flags, footer),
LZMA_PROG_ERROR);
@ -410,10 +410,10 @@ test_lzma_stream_flags_compare(void)
second.version = 0;
// Check types must be under the maximum
first.check = LZMA_CHECK_ID_MAX + 1;
first.check = INVALID_LZMA_CHECK_ID;
assert_lzma_ret(lzma_stream_flags_compare(&first, &second),
LZMA_PROG_ERROR);
second.check = LZMA_CHECK_ID_MAX + 1;
second.check = INVALID_LZMA_CHECK_ID;
assert_lzma_ret(lzma_stream_flags_compare(&first, &second),
LZMA_PROG_ERROR);
first.check = LZMA_CHECK_CRC32;

9
tests/tests.h
View file

@ -19,6 +19,15 @@
#include "tuktest.h"
// Invalid value for the lzma_check enumeration. This must be positive
// but small enough to fit into signed char since the underlying type might
// one some platform be a signed char.
//
// Don't put LZMA_ at the beginning of the name so that it is obvious that
// this constant doesn't come from the API headers.
#define INVALID_LZMA_CHECK_ID ((lzma_check)(LZMA_CHECK_ID_MAX + 1))
#define memcrap(buf, size) memset(buf, 0xFD, size)