absurdfarce commented on code in PR #575: URL: https://github.com/apache/cassandra-cpp-driver/pull/575#discussion_r3012094972
########## tests/src/unit/tests/test_cluster_config.cpp: ########## @@ -0,0 +1,163 @@ +/* + Copyright (c) DataStax, Inc. + + 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 <gtest/gtest.h> + +#include "cluster_config.hpp" +#include "cassandra.h" +#include "dc_aware_policy.hpp" +#include "string.hpp" + +using namespace datastax; +using namespace datastax::internal; +using namespace datastax::internal::core; + +class ClusterConfigUnitTest : public testing::Test { +public: + ClusterConfigUnitTest() {} + + virtual void SetUp() { + cluster_ = cass_cluster_new(); + } + + virtual void TearDown() { + cass_cluster_free(cluster_); + } + +private: + +protected: + CassCluster* cluster_; + + const DCAwarePolicy* build_dc_policy() { + + // Disable token-aware routing in this case in order to avoid illegal instructions + // when creating a TokenAwarePolicy in build_load_balancing_policy() + cluster_->config().set_token_aware_routing(false); + cluster_->config().default_profile().build_load_balancing_policy(); + + // Verify the policy was set correctly with the right datacenter name + const LoadBalancingPolicy* policy = + cluster_->config().load_balancing_policy().get(); + return static_cast<const DCAwarePolicy*>(policy); + } +}; + +// ==================== cass_cluster_set_load_balance_dc_aware_n ==================== +TEST_F(ClusterConfigUnitTest, SetLoadBalanceDcAwareNHappyPath) { + + // Test valid parameters + const char* valid_dc = "my_datacenter"; + EXPECT_EQ(CASS_OK, cass_cluster_set_load_balance_dc_aware_n( + cluster_, valid_dc, strlen(valid_dc), + 2, cass_true)); + + const DCAwarePolicy* dc_policy = build_dc_policy(); + + // Should be using the partial string as local DC + EXPECT_EQ(dc_policy->local_dc(), valid_dc); + EXPECT_EQ(dc_policy->used_hosts_per_remote_dc(), 2u); + EXPECT_FALSE(dc_policy->skip_remote_dcs_for_local_cl()); +} + +TEST_F(ClusterConfigUnitTest, SetLoadBalanceDcAwareNWithNullLocalDc) { + + // Test with NULL pointer (should now succeed and use empty string for DC) + EXPECT_EQ(CASS_OK, + cass_cluster_set_load_balance_dc_aware_n( + cluster_, NULL, 10, 2, cass_true)); + + const DCAwarePolicy* dc_policy = build_dc_policy(); + + EXPECT_EQ(dc_policy->local_dc(), String()); + EXPECT_EQ(dc_policy->used_hosts_per_remote_dc(), 2u); + EXPECT_FALSE(dc_policy->skip_remote_dcs_for_local_cl()); +} + +TEST_F(ClusterConfigUnitTest, SetLoadBalanceDcAwareNWithZeroLengthLocalDc) { + + // Test with zero length (should now succeed and use empty string for DC) + const char* valid_dc = "my_datacenter"; + EXPECT_EQ(CASS_OK, + cass_cluster_set_load_balance_dc_aware_n( + cluster_, valid_dc, 0, 2, cass_true)); + + const DCAwarePolicy* dc_policy = build_dc_policy(); + + EXPECT_EQ(dc_policy->local_dc(), String()); + EXPECT_EQ(dc_policy->used_hosts_per_remote_dc(), 2u); + EXPECT_FALSE(dc_policy->skip_remote_dcs_for_local_cl()); +} + +TEST_F(ClusterConfigUnitTest, SetLoadBalanceDcAwareNWithEmptyLocalDc) { + + // Test with empty string (should now succeed) + const char* empty_string = ""; + EXPECT_EQ(CASS_OK, + cass_cluster_set_load_balance_dc_aware_n( + cluster_, empty_string, strlen(empty_string), 2, cass_true)); + + const DCAwarePolicy* dc_policy = build_dc_policy(); + + EXPECT_EQ(dc_policy->local_dc(), String()); + EXPECT_EQ(dc_policy->used_hosts_per_remote_dc(), 2u); + EXPECT_FALSE(dc_policy->skip_remote_dcs_for_local_cl()); +} + +TEST_F(ClusterConfigUnitTest, SetLoadBalanceDcAwareNWithPartialStringLocalDc) { + + // Test with partial string length + const char* long_dc_name = "my_datacenter_with_a_long_name"; + size_t partial_length = 5; // Should just use "my_da" as the datacenter name + EXPECT_EQ(CASS_OK, cass_cluster_set_load_balance_dc_aware_n( + cluster_, long_dc_name, partial_length, + 2, cass_true)); + + const DCAwarePolicy* dc_policy = build_dc_policy(); + + // Should be using the partial string as local DC + EXPECT_EQ(dc_policy->local_dc(), String(long_dc_name, partial_length)); + EXPECT_EQ(dc_policy->local_dc(), String("my_da")); + EXPECT_EQ(dc_policy->used_hosts_per_remote_dc(), 2u); + EXPECT_FALSE(dc_policy->skip_remote_dcs_for_local_cl()); +} + +// ==================== cass_cluster_set_load_balance_dc_aware ==================== +TEST_F(ClusterConfigUnitTest, SetLoadBalanceDcAwareWithNullLocalDc) { + // Test with NULL to use local DC from connected node + EXPECT_EQ(CASS_OK, cass_cluster_set_load_balance_dc_aware( + cluster_, NULL, 3, cass_false)); + + const DCAwarePolicy* dc_policy = build_dc_policy(); + + // Should be using empty string as local DC (will be determined at runtime) + EXPECT_EQ(dc_policy->local_dc(), String()); + EXPECT_EQ(dc_policy->used_hosts_per_remote_dc(), 3u); + EXPECT_TRUE(dc_policy->skip_remote_dcs_for_local_cl()); +} + +TEST_F(ClusterConfigUnitTest, SetLoadBalanceDcAwareWithEmptyLocalDc) { + // Test with empty string to use local DC from connected node + EXPECT_EQ(CASS_OK, cass_cluster_set_load_balance_dc_aware( + cluster_, "", 2, cass_true)); + + const DCAwarePolicy* dc_policy = build_dc_policy(); + + // Should be using empty string as local DC (will be determined at runtime) + EXPECT_EQ(dc_policy->local_dc(), String()); + EXPECT_EQ(dc_policy->used_hosts_per_remote_dc(), 2u); + EXPECT_FALSE(dc_policy->skip_remote_dcs_for_local_cl()); +} Review Comment: Added -- This is an automated message from the Apache Git Service. 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