Merge pull request #3019 from dgquintas/channel_args_compression

Added C API functions for compression args handling (w/ tests)

1 files changed, 141 insertions, 0 deletions

diff --git a/test/core/channel/channel_args_test.c b/test/core/channel/channel_args_test.c
new file mode 100644
index 0000000000..87f006acde
--- /dev/null
+++ b/test/core/channel/channel_args_test.c
@@ -0,0 +1,141 @@
+/*
+ *
+ * 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 <string.h>
+
+#include <grpc/support/log.h>
+#include <grpc/support/useful.h>
+
+#include "src/core/channel/channel_args.h"
+
+#include "test/core/util/test_config.h"
+
+static void test_create(void) {
+  grpc_arg arg_int;
+  grpc_arg arg_string;
+  grpc_arg to_add[2];
+  grpc_channel_args *ch_args;
+
+  arg_int.key = "int_arg";
+  arg_int.type = GRPC_ARG_INTEGER;
+  arg_int.value.integer = 123;
+
+  arg_string.key = "str key";
+  arg_string.type = GRPC_ARG_STRING;
+  arg_string.value.string = "str value";
+
+  to_add[0] = arg_int;
+  to_add[1] = arg_string;
+  ch_args = grpc_channel_args_copy_and_add(NULL, to_add, 2);
+
+  GPR_ASSERT(ch_args->num_args == 2);
+  GPR_ASSERT(strcmp(ch_args->args[0].key, arg_int.key) == 0);
+  GPR_ASSERT(ch_args->args[0].type == arg_int.type);
+  GPR_ASSERT(ch_args->args[0].value.integer == arg_int.value.integer);
+
+  GPR_ASSERT(strcmp(ch_args->args[1].key, arg_string.key) == 0);
+  GPR_ASSERT(ch_args->args[1].type == arg_string.type);
+  GPR_ASSERT(strcmp(ch_args->args[1].value.string, arg_string.value.string) ==
+             0);
+
+  grpc_channel_args_destroy(ch_args);
+}
+
+static void test_set_compression_algorithm(void) {
+  grpc_channel_args *ch_args;
+
+  ch_args =
+      grpc_channel_args_set_compression_algorithm(NULL, GRPC_COMPRESS_GZIP);
+  GPR_ASSERT(ch_args->num_args == 1);
+  GPR_ASSERT(strcmp(ch_args->args[0].key, GRPC_COMPRESSION_ALGORITHM_ARG) == 0);
+  GPR_ASSERT(ch_args->args[0].type == GRPC_ARG_INTEGER);
+
+  grpc_channel_args_destroy(ch_args);
+}
+
+static void test_compression_algorithm_states(void) {
+  grpc_channel_args *ch_args, *ch_args_wo_gzip, *ch_args_wo_gzip_deflate;
+  int states_bitset;
+  size_t i;
+
+  ch_args = grpc_channel_args_copy_and_add(NULL, NULL, 0);
+  /* by default, all enabled */
+  states_bitset = grpc_channel_args_compression_algorithm_get_states(ch_args);
+
+  for (i = 0; i < GRPC_COMPRESS_ALGORITHMS_COUNT; i++) {
+    GPR_ASSERT(GPR_BITGET(states_bitset, i));
+  }
+
+  /* disable gzip and deflate */
+  ch_args_wo_gzip = grpc_channel_args_compression_algorithm_set_state(
+      &ch_args, GRPC_COMPRESS_GZIP, 0);
+  GPR_ASSERT(ch_args == ch_args_wo_gzip);
+  ch_args_wo_gzip_deflate = grpc_channel_args_compression_algorithm_set_state(
+      &ch_args_wo_gzip, GRPC_COMPRESS_DEFLATE, 0);
+  GPR_ASSERT(ch_args_wo_gzip == ch_args_wo_gzip_deflate);
+
+  states_bitset = grpc_channel_args_compression_algorithm_get_states(
+      ch_args_wo_gzip_deflate);
+  for (i = 0; i < GRPC_COMPRESS_ALGORITHMS_COUNT; i++) {
+    if (i == GRPC_COMPRESS_GZIP || i == GRPC_COMPRESS_DEFLATE) {
+      GPR_ASSERT(GPR_BITGET(states_bitset, i) == 0);
+    } else {
+      GPR_ASSERT(GPR_BITGET(states_bitset, i) != 0);
+    }
+  }
+
+  /* re-enabled gzip only */
+  ch_args_wo_gzip = grpc_channel_args_compression_algorithm_set_state(
+      &ch_args_wo_gzip_deflate, GRPC_COMPRESS_GZIP, 1);
+  GPR_ASSERT(ch_args_wo_gzip == ch_args_wo_gzip_deflate);
+
+  states_bitset =
+      grpc_channel_args_compression_algorithm_get_states(ch_args_wo_gzip);
+  for (i = 0; i < GRPC_COMPRESS_ALGORITHMS_COUNT; i++) {
+    if (i == GRPC_COMPRESS_DEFLATE) {
+      GPR_ASSERT(GPR_BITGET(states_bitset, i) == 0);
+    } else {
+      GPR_ASSERT(GPR_BITGET(states_bitset, i) != 0);
+    }
+  }
+
+  grpc_channel_args_destroy(ch_args);
+}
+
+int main(int argc, char **argv) {
+  grpc_test_init(argc, argv);
+  test_create();
+  test_set_compression_algorithm();
+  test_compression_algorithm_states();
+  return 0;
+}