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/*
 *
 * Copyright 2015 gRPC authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

#include <stdlib.h>
#include <string.h>

#include <grpc/compression.h>
#include <grpc/grpc.h>
#include <grpc/support/log.h>

#include "src/core/lib/gpr/useful.h"
#include "test/core/util/test_config.h"

static void test_compression_algorithm_parse(void) {
  size_t i;
  const char* valid_names[] = {"identity", "gzip", "deflate", "stream/gzip"};
  const grpc_compression_algorithm valid_algorithms[] = {
      GRPC_COMPRESS_NONE, GRPC_COMPRESS_GZIP, GRPC_COMPRESS_DEFLATE,
      GRPC_COMPRESS_STREAM_GZIP};
  const char* invalid_names[] = {"gzip2", "foo", "", "2gzip"};

gpr_log(GPR_DEBUG, "test_compression_algorithm_parse");

for (i = 0; i < GPR_ARRAY_SIZE(valid_names); i++) {
    const char* valid_name = valid_names[i];
    grpc_compression_algorithm algorithm;
    const int success = grpc_compression_algorithm_parse(
        grpc_slice_from_static_string(valid_name), &algorithm);
    GPR_ASSERT(success != 0);
    GPR_ASSERT(algorithm == valid_algorithms[i]);
  }

for (i = 0; i < GPR_ARRAY_SIZE(invalid_names); i++) {
    const char* invalid_name = invalid_names[i];
    grpc_compression_algorithm algorithm;
    int success;
    success = grpc_compression_algorithm_parse(
        grpc_slice_from_static_string(invalid_name), &algorithm);
    GPR_ASSERT(success == 0);
    /* the value of "algorithm" is undefined upon failure */
  }
}

static void test_compression_algorithm_name(void) {
  int success;
  const char* name;
  size_t i;
  const char* valid_names[] = {"identity", "gzip", "deflate", "stream/gzip"};
  const grpc_compression_algorithm valid_algorithms[] = {
      GRPC_COMPRESS_NONE, GRPC_COMPRESS_GZIP, GRPC_COMPRESS_DEFLATE,
      GRPC_COMPRESS_STREAM_GZIP};

gpr_log(GPR_DEBUG, "test_compression_algorithm_name");

for (i = 0; i < GPR_ARRAY_SIZE(valid_algorithms); i++) {
    success = grpc_compression_algorithm_name(valid_algorithms[i], &name);
    GPR_ASSERT(success != 0);
    GPR_ASSERT(strcmp(name, valid_names[i]) == 0);
  }

success =
      grpc_compression_algorithm_name(GRPC_COMPRESS_ALGORITHMS_COUNT, &name);
  GPR_ASSERT(success == 0);
  /* the value of "name" is undefined upon failure */
}

static void test_compression_algorithm_for_level(void) {
  gpr_log(GPR_DEBUG, "test_compression_algorithm_for_level");

{
    /* accept only identity (aka none) */
    uint32_t accepted_encodings = 0;
    GPR_BITSET(&accepted_encodings, GRPC_COMPRESS_NONE); /* always */