Add operator== and operator!= for Settings.

Author: ehsannas

firestore/integration_test_internal/CMakeLists.txt

@@ -95,6 +95,7 @@ set(FIREBASE_INTEGRATION_TEST_PORTABLE_TEST_SRCS
     src/query_test.cc
     src/sanity_test.cc
     src/server_timestamp_test.cc
+    src/settings_test.cc
     src/smoke_test.cc
     src/source_test.cc
     src/transaction_test.cc

firestore/integration_test_internal/src/settings_test.cc

@@ -0,0 +1,74 @@
+// Copyright 2021 Google LLC
+
+#include <future>
+#include <map>
+#include <string>
+
+#include "firebase/firestore.h"
+#include "firestore_integration_test.h"
+
+namespace firebase {
+namespace firestore {
+
+using SettingsTest = FirestoreIntegrationTest;
+
+TEST_F(SettingsTest, Equality) {
+  int64_t five_mb = 5 * 1024 * 1024;
+  int64_t six_mb = 6 * 1024 * 1024;
+
+  Settings settings1;
+  settings1.set_host("foo");
+  settings1.set_ssl_enabled(true);
+  settings1.set_persistence_enabled(true);
+  settings1.set_cache_size_bytes(five_mb);
+
+  Settings settings2;
+  settings2.set_host("bar");
+  settings2.set_ssl_enabled(true);
+  settings2.set_persistence_enabled(true);
+  settings2.set_cache_size_bytes(five_mb);
+
+  Settings settings3;
+  settings3.set_host("foo");
+  settings3.set_ssl_enabled(false);
+  settings3.set_persistence_enabled(true);
+  settings3.set_cache_size_bytes(five_mb);
+
+  Settings settings4;
+  settings4.set_host("foo");
+  settings4.set_ssl_enabled(true);
+  settings4.set_persistence_enabled(false);
+  settings4.set_cache_size_bytes(five_mb);
+
+  Settings settings5;
+  settings5.set_host("foo");
+  settings5.set_ssl_enabled(true);
+  settings5.set_persistence_enabled(true);
+  settings5.set_cache_size_bytes(six_mb);
+
+  EXPECT_TRUE(settings1 == settings1);
+
+  EXPECT_FALSE(settings1 == settings2);
+  EXPECT_FALSE(settings1 == settings3);
+  EXPECT_FALSE(settings1 == settings4);
+  EXPECT_FALSE(settings1 == settings5);
+  EXPECT_FALSE(settings2 == settings3);
+  EXPECT_FALSE(settings2 == settings4);
+  EXPECT_FALSE(settings2 == settings5);
+  EXPECT_FALSE(settings3 == settings4);
+  EXPECT_FALSE(settings3 == settings5);
+  EXPECT_FALSE(settings4 == settings5);
+
+  EXPECT_TRUE(settings1 != settings2);
+  EXPECT_TRUE(settings1 != settings3);
+  EXPECT_TRUE(settings1 != settings4);
+  EXPECT_TRUE(settings1 != settings5);
+  EXPECT_TRUE(settings2 != settings3);
+  EXPECT_TRUE(settings2 != settings4);
+  EXPECT_TRUE(settings2 != settings5);
+  EXPECT_TRUE(settings3 != settings4);
+  EXPECT_TRUE(settings3 != settings5);
+  EXPECT_TRUE(settings4 != settings5);
+}
+}  // namespace firestore
+}  // namespace firebase

firestore/src/include/firebase/firestore/settings.h

@@ -228,6 +228,19 @@ class Settings final {
 #endif
 };
 
+/** Checks `lhs` and `rhs` for equality. */
+inline bool operator==(const Settings& lhs, const Settings& rhs) {
+  return lhs.host() == rhs.host() &&
+         lhs.is_ssl_enabled() == rhs.is_ssl_enabled() &&
+         lhs.is_persistence_enabled() == rhs.is_persistence_enabled() &&
+         lhs.cache_size_bytes() == rhs.cache_size_bytes();
+}
+
+/** Checks `lhs` and `rhs` for inequality. */
+inline bool operator!=(const Settings& lhs, const Settings& rhs) {
+  return !(lhs == rhs);
+}
+
 }  // namespace firestore
 }  // namespace firebase