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/*
*
* Copyright 2015, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. 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.
*
*/
#include "src/core/compression/message_compress.h"
#include <stdlib.h>
#include <string.h>
#include "test/core/util/test_config.h"
#include "src/core/support/murmur_hash.h"
#include <grpc/support/log.h>
#include <grpc/support/useful.h>
#include "test/core/util/slice_splitter.h"
typedef enum { ONE_A = 0, ONE_KB_A, ONE_MB_A, TEST_VALUE_COUNT } test_value;
typedef enum {
SHOULD_NOT_COMPRESS,
SHOULD_COMPRESS,
MAYBE_COMPRESSES
} compressability;
static void assert_passthrough(gpr_slice value,
grpc_compression_algorithm algorithm,
grpc_slice_split_mode uncompressed_split_mode,
grpc_slice_split_mode compressed_split_mode,
compressability compress_result_check) {
gpr_slice_buffer input;
gpr_slice_buffer compressed_raw;
gpr_slice_buffer compressed;
gpr_slice_buffer output;
gpr_slice final;
int was_compressed;
char *algorithm_name;
GPR_ASSERT(grpc_compression_algorithm_name(algorithm, &algorithm_name) != 0);
gpr_log(GPR_INFO,
"assert_passthrough: value_length=%d value_hash=0x%08x "
"algorithm='%s' uncompressed_split='%s' compressed_split='%s'",
GPR_SLICE_LENGTH(value), gpr_murmur_hash3(GPR_SLICE_START_PTR(value),
GPR_SLICE_LENGTH(value), 0),
algorithm_name,
grpc_slice_split_mode_name(uncompressed_split_mode),
grpc_slice_split_mode_name(compressed_split_mode));
gpr_slice_buffer_init(&input);
gpr_slice_buffer_init(&compressed_raw);
gpr_slice_buffer_init(&compressed);
gpr_slice_buffer_init(&output);
grpc_split_slices_to_buffer(uncompressed_split_mode, &value, 1, &input);
was_compressed = grpc_msg_compress(algorithm, &input, &compressed_raw);
GPR_ASSERT(input.count > 0);
switch (compress_result_check) {
case SHOULD_NOT_COMPRESS:
GPR_ASSERT(was_compressed == 0);
break;
case SHOULD_COMPRESS:
GPR_ASSERT(was_compressed == 1);
break;
case MAYBE_COMPRESSES:
/* no check */
break;
}
grpc_split_slice_buffer(compressed_split_mode, &compressed_raw, &compressed);
GPR_ASSERT(grpc_msg_decompress(
was_compressed ? algorithm : GRPC_COMPRESS_NONE, &compressed, &output));
final = grpc_slice_merge(output.slices, output.count);
GPR_ASSERT(0 == gpr_slice_cmp(value, final));
gpr_slice_buffer_destroy(&input);
gpr_slice_buffer_destroy(&compressed);
gpr_slice_buffer_destroy(&compressed_raw);
gpr_slice_buffer_destroy(&output);
gpr_slice_unref(final);
}
static gpr_slice repeated(char c, size_t length) {
gpr_slice out = gpr_slice_malloc(length);
memset(GPR_SLICE_START_PTR(out), c, length);
return out;
}
static compressability get_compressability(
test_value id, grpc_compression_algorithm algorithm) {
if (algorithm == GRPC_COMPRESS_NONE) return SHOULD_NOT_COMPRESS;
switch (id) {
case ONE_A:
return SHOULD_NOT_COMPRESS;
case ONE_KB_A:
case ONE_MB_A:
return SHOULD_COMPRESS;
case TEST_VALUE_COUNT:
abort();
break;
}
return MAYBE_COMPRESSES;
}
static gpr_slice create_test_value(test_value id) {
switch (id) {
case ONE_A:
return gpr_slice_from_copied_string("a");
case ONE_KB_A:
return repeated('a', 1024);
case ONE_MB_A:
return repeated('a', 1024 * 1024);
case TEST_VALUE_COUNT:
abort();
break;
}
return gpr_slice_from_copied_string("bad value");
}
static void test_bad_data(void) {
gpr_slice_buffer input;
gpr_slice_buffer output;
int i;
gpr_slice_buffer_init(&input);
gpr_slice_buffer_init(&output);
gpr_slice_buffer_add(&input, gpr_slice_from_copied_string(
"this is not valid compressed input"));
for (i = 0; i < GRPC_COMPRESS_ALGORITHMS_COUNT; i++) {
if (i == GRPC_COMPRESS_NONE) continue;
GPR_ASSERT(0 == grpc_msg_decompress(i, &input, &output));
GPR_ASSERT(0 == output.count);
}
gpr_slice_buffer_destroy(&input);
gpr_slice_buffer_destroy(&output);
}
int main(int argc, char **argv) {
unsigned i, j, k, m;
grpc_slice_split_mode uncompressed_split_modes[] = {
GRPC_SLICE_SPLIT_IDENTITY, GRPC_SLICE_SPLIT_ONE_BYTE};
grpc_slice_split_mode compressed_split_modes[] = {GRPC_SLICE_SPLIT_MERGE_ALL,
GRPC_SLICE_SPLIT_IDENTITY,
GRPC_SLICE_SPLIT_ONE_BYTE};
grpc_test_init(argc, argv);
for (i = 0; i < GRPC_COMPRESS_ALGORITHMS_COUNT; i++) {
for (j = 0; j < GPR_ARRAY_SIZE(uncompressed_split_modes); j++) {
for (k = 0; k < GPR_ARRAY_SIZE(compressed_split_modes); k++) {
for (m = 0; m < TEST_VALUE_COUNT; m++) {
gpr_slice slice = create_test_value(m);
assert_passthrough(slice, i, j, k, get_compressability(m, i));
gpr_slice_unref(slice);
}
}
}
}
test_bad_data();
return 0;
}
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