rename all test core files to cc and a lot of C++ style conversions

1 files changed, 193 insertions, 0 deletions

diff --git a/test/core/iomgr/time_averaged_stats_test.cc b/test/core/iomgr/time_averaged_stats_test.cc
new file mode 100644
index 0000000000..508e3c5bf8
--- /dev/null
+++ b/test/core/iomgr/time_averaged_stats_test.cc
@@ -0,0 +1,193 @@
+/*
+ *
+ * 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 "src/core/lib/iomgr/time_averaged_stats.h"
+
+#include <math.h>
+
+#include <grpc/support/log.h>
+#include "test/core/util/test_config.h"
+
+#define EXPECT_EQ(a, b) GPR_ASSERT((a) == (b))
+#define EXPECT_DOUBLE_EQ(a, b) GPR_ASSERT(fabs((a) - (b)) < 1e-9)
+
+static void no_regress_no_persist_test_1(void) {
+  grpc_time_averaged_stats tas;
+  grpc_time_averaged_stats_init(&tas, 1000, 0, 0.0);
+  EXPECT_DOUBLE_EQ(1000, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(0, tas.aggregate_total_weight);
+
+  /* Should have no effect */
+  grpc_time_averaged_stats_update_average(&tas);
+  EXPECT_DOUBLE_EQ(1000, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(0, tas.aggregate_total_weight);
+
+  /* Should replace old average */
+  grpc_time_averaged_stats_add_sample(&tas, 2000);
+  grpc_time_averaged_stats_update_average(&tas);
+  EXPECT_DOUBLE_EQ(2000, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(1, tas.aggregate_total_weight);
+}
+
+static void no_regress_no_persist_test_2(void) {
+  grpc_time_averaged_stats tas;
+  grpc_time_averaged_stats_init(&tas, 1000, 0, 0.0);
+  EXPECT_DOUBLE_EQ(1000, tas.aggregate_weighted_avg);
+  /* Should replace init value */
+  grpc_time_averaged_stats_add_sample(&tas, 2000);
+  grpc_time_averaged_stats_update_average(&tas);
+  EXPECT_DOUBLE_EQ(2000, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(1, tas.aggregate_total_weight);
+
+  grpc_time_averaged_stats_add_sample(&tas, 3000);
+  grpc_time_averaged_stats_update_average(&tas);
+  EXPECT_DOUBLE_EQ(3000, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(1, tas.aggregate_total_weight);
+}
+
+static void no_regress_no_persist_test_3(void) {
+  grpc_time_averaged_stats tas;
+  grpc_time_averaged_stats_init(&tas, 1000, 0, 0.0);
+  EXPECT_DOUBLE_EQ(1000, tas.aggregate_weighted_avg);
+  /* Should replace init value */
+  grpc_time_averaged_stats_add_sample(&tas, 2500);
+  grpc_time_averaged_stats_update_average(&tas);
+  EXPECT_DOUBLE_EQ(2500, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(1, tas.aggregate_total_weight);
+
+  grpc_time_averaged_stats_add_sample(&tas, 3500);
+  grpc_time_averaged_stats_add_sample(&tas, 4500);
+  grpc_time_averaged_stats_update_average(&tas);
+  EXPECT_DOUBLE_EQ(4000, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(2, tas.aggregate_total_weight);
+}
+
+static void some_regress_no_persist_test(void) {
+  grpc_time_averaged_stats tas;
+  grpc_time_averaged_stats_init(&tas, 1000, 0.5, 0.0);
+  EXPECT_DOUBLE_EQ(1000, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(0, tas.aggregate_total_weight);
+  grpc_time_averaged_stats_add_sample(&tas, 2000);
+  grpc_time_averaged_stats_add_sample(&tas, 2000);
+  grpc_time_averaged_stats_update_average(&tas);
+  /* (2 * 2000 + 0.5 * 1000) / 2.5 */
+  EXPECT_DOUBLE_EQ(1800, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(2.5, tas.aggregate_total_weight);
+}
+
+static void some_decay_test(void) {
+  grpc_time_averaged_stats tas;
+  grpc_time_averaged_stats_init(&tas, 1000, 1, 0.0);
+  EXPECT_EQ(1000, tas.aggregate_weighted_avg);
+  /* Should avg with init value */
+  grpc_time_averaged_stats_add_sample(&tas, 2000);
+  grpc_time_averaged_stats_update_average(&tas);
+  EXPECT_DOUBLE_EQ(1500, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(2, tas.aggregate_total_weight);
+
+  grpc_time_averaged_stats_add_sample(&tas, 2000);
+  grpc_time_averaged_stats_update_average(&tas);
+  EXPECT_DOUBLE_EQ(1500, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(2, tas.aggregate_total_weight);
+
+  grpc_time_averaged_stats_add_sample(&tas, 2000);
+  grpc_time_averaged_stats_update_average(&tas);
+  EXPECT_DOUBLE_EQ(1500, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(2, tas.aggregate_total_weight);
+}
+
+static void no_regress_full_persist_test(void) {
+  grpc_time_averaged_stats tas;
+  grpc_time_averaged_stats_init(&tas, 1000, 0, 1.0);
+  EXPECT_DOUBLE_EQ(1000, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(0, tas.aggregate_total_weight);
+
+  /* Should replace init value */
+  grpc_time_averaged_stats_add_sample(&tas, 2000);
+  grpc_time_averaged_stats_update_average(&tas);
+  EXPECT_EQ(2000, tas.aggregate_weighted_avg);
+  EXPECT_EQ(1, tas.aggregate_total_weight);
+
+  /* Will result in average of the 3 samples. */
+  grpc_time_averaged_stats_add_sample(&tas, 2300);
+  grpc_time_averaged_stats_add_sample(&tas, 2300);
+  grpc_time_averaged_stats_update_average(&tas);
+  EXPECT_DOUBLE_EQ(2200, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(3, tas.aggregate_total_weight);
+}
+
+static void no_regress_some_persist_test(void) {
+  grpc_time_averaged_stats tas;
+  grpc_time_averaged_stats_init(&tas, 1000, 0, 0.5);
+  /* Should replace init value */
+  grpc_time_averaged_stats_add_sample(&tas, 2000);
+  grpc_time_averaged_stats_update_average(&tas);
+  EXPECT_DOUBLE_EQ(2000, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(1, tas.aggregate_total_weight);
+
+  grpc_time_averaged_stats_add_sample(&tas, 2500);
+  grpc_time_averaged_stats_add_sample(&tas, 4000);
+  grpc_time_averaged_stats_update_average(&tas);
+  EXPECT_DOUBLE_EQ(3000, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(2.5, tas.aggregate_total_weight);
+}
+
+static void some_regress_some_persist_test(void) {
+  grpc_time_averaged_stats tas;
+  grpc_time_averaged_stats_init(&tas, 1000, 0.4, 0.6);
+  /* Sample weight = 0 */
+  EXPECT_EQ(1000, tas.aggregate_weighted_avg);
+  EXPECT_EQ(0, tas.aggregate_total_weight);
+
+  grpc_time_averaged_stats_update_average(&tas);
+  /* (0.6 * 0 * 1000 + 0.4 * 1000 / 0.4) */
+  EXPECT_DOUBLE_EQ(1000, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(0.4, tas.aggregate_total_weight);
+
+  grpc_time_averaged_stats_add_sample(&tas, 2640);
+  grpc_time_averaged_stats_update_average(&tas);
+  /* (1 * 2640 + 0.6 * 0.4 * 1000 + 0.4 * 1000 / (1 + 0.6 * 0.4 + 0.4) */
+  EXPECT_DOUBLE_EQ(2000, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(1.64, tas.aggregate_total_weight);
+
+  grpc_time_averaged_stats_add_sample(&tas, 2876.8);
+  grpc_time_averaged_stats_update_average(&tas);
+  /* (1 * 2876.8 + 0.6 * 1.64 * 2000 + 0.4 * 1000 / (1 + 0.6 * 1.64 + 0.4) */
+  EXPECT_DOUBLE_EQ(2200, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(2.384, tas.aggregate_total_weight);
+
+  grpc_time_averaged_stats_add_sample(&tas, 4944.32);
+  grpc_time_averaged_stats_update_average(&tas);
+  /* (1 * 4944.32 + 0.6 * 2.384 * 2200 + 0.4 * 1000) /
+     (1 + 0.6 * 2.384 + 0.4) */
+  EXPECT_DOUBLE_EQ(3000, tas.aggregate_weighted_avg);
+  EXPECT_DOUBLE_EQ(2.8304, tas.aggregate_total_weight);
+}
+
+int main(int argc, char **argv) {
+  grpc_test_init(argc, argv);
+  no_regress_no_persist_test_1();
+  no_regress_no_persist_test_2();
+  no_regress_no_persist_test_3();
+  some_regress_no_persist_test();
+  some_decay_test();
+  no_regress_full_persist_test();
+  no_regress_some_persist_test();
+  some_regress_some_persist_test();
+  return 0;
+}