test: Removing compilation warnings (unsigned <> signed)

Author: Michael Fero

cpp-driver/gtests/src/unit/tests/test_pool.cpp

@@ -17,7 +17,7 @@
 #include "constants.hpp"
 #include "ssl.hpp"
 
-#define NUM_NODES 3
+#define NUM_NODES 3u
 using namespace cass;
 
 class PoolUnitTest : public LoopTest {
@@ -271,7 +271,7 @@ class PoolUnitTest : public LoopTest {
   AddressVec addresses() const {
     mockssandra::Ipv4AddressGenerator generator;
     AddressVec addresses;
-    for (int i = 0; i < NUM_NODES; ++i) {
+    for (size_t i = 0; i < NUM_NODES; ++i) {
       addresses.push_back(generator.next());
     }
     return addresses;
@@ -296,7 +296,7 @@ class PoolUnitTest : public LoopTest {
     ConnectionPoolManager::Ptr manager = initializer->release_manager();
     status->set_manager(manager);
 
-    for (int i = 0; i < NUM_NODES; ++i) {
+    for (size_t i = 0; i < NUM_NODES; ++i) {
       PooledConnection::Ptr connection = manager->find_least_busy(generator.next());
       if (connection) {
         RequestCallback::Ptr callback(Memory::allocate<RequestCallback>(status));

cpp-driver/gtests/src/unit/tests/test_session_base.cpp

@@ -47,7 +47,7 @@ class TestSessionBase : public cass::SessionBase {
     ++connected_;
     ASSERT_STREQ("127.0.0.1", connected_host->address_string().c_str());
     ASSERT_EQ(cass::ProtocolVersion(PROTOCOL_VERSION), protocol_version);
-    ASSERT_EQ(1, hosts.size());
+    ASSERT_EQ(1u, hosts.size());
     ASSERT_EQ(state(), SESSION_STATE_CONNECTING);
     notify_connected();
   }