feat: token transfer operator == adition

src/sdk/main/include/TokenTransfer.h

@@ -97,6 +97,14 @@ class TokenTransfer
    */
   void validateChecksums(const Client& client) const;
 
+  /**
+   * Compare this TokenTransfer to another TokenTransfer and determine if they represent the same TokenTransfer.
+   *
+   * @param other The other TokenTransfer with which to compare this TokenTransfer.
+   * @return \c TRUE if this TokenTransfer is the same as the input TokenTransfer, otherwise \c FALSE.
+   */
+  [[nodiscard]] bool operator==(const TokenTransfer& other) const;
+
   /**
    * Construct an AccountAmount protobuf object from this TokenTransfer object.
    *

src/sdk/main/src/TokenTransfer.cc

@@ -78,6 +78,13 @@ void TokenTransfer::validateChecksums(const Client& client) const
   mAccountId.validateChecksum(client);
 }
 
+//-----
+bool TokenTransfer::operator==(const TokenTransfer& other) const
+{
+  return (mTokenId == other.mTokenId) && (mAccountId == other.mAccountId) && (mAmount == other.mAmount) &&
+         (mIsApproval == other.mIsApproval) && (mExpectedDecimals == other.mExpectedDecimals);
+}
+
 //-----
 std::unique_ptr<proto::AccountAmount> TokenTransfer::toProtobuf() const
 {

src/sdk/tests/unit/TokenTransferUnitTests.cc

@@ -4,8 +4,8 @@
 #include "AccountId.h"
 #include "TokenId.h"
 
-#include <services/basic_types.pb.h>
 #include <gtest/gtest.h>
+#include <services/basic_types.pb.h>
 
 using namespace Hiero;
 
@@ -114,3 +114,48 @@ TEST_F(TokenTransferUnitTests, ToProtobuf)
   EXPECT_EQ(proto->amount(), getTestAmount());
   EXPECT_EQ(proto->is_approval(), getTestIsApproval());
 }
+
+//-----
+TEST_F(TokenTransferUnitTests, OperatorEqualsSame)
+{
+  // Given
+  // Default
+  TokenTransfer defaultTokenL;
+  TokenTransfer defaultTokenR;
+  // Identical
+  TokenTransfer equalTokenL(
+    getTestTokenId(), getTestAccountId(), getTestAmount(), getTestExpectedDecimals(), getTestIsApproval());
+  TokenTransfer equalTokenR(
+    getTestTokenId(), getTestAccountId(), getTestAmount(), getTestExpectedDecimals(), getTestIsApproval());
+
+  // Then
+  EXPECT_TRUE(defaultTokenL == defaultTokenR);
+  EXPECT_TRUE(equalTokenL == equalTokenR);
+}
+
+//-----
+TEST_F(TokenTransferUnitTests, OperatorEqualsDiff)
+{
+  // Given
+  TokenTransfer testTokenTransfer(
+    getTestTokenId(), getTestAccountId(), getTestAmount(), getTestExpectedDecimals(), getTestIsApproval());
+
+  // When
+  TokenTransfer diffTestToken(
+    TokenId(505ULL), getTestAccountId(), getTestAmount(), getTestExpectedDecimals(), getTestIsApproval());
+  TokenTransfer diffTestAccountId(
+    getTestTokenId(), AccountId(12345ULL), getTestAmount(), getTestExpectedDecimals(), getTestIsApproval());
+  TokenTransfer diffTestAmount(
+    getTestTokenId(), getTestAccountId(), 500LL, getTestExpectedDecimals(), getTestIsApproval());
+  TokenTransfer diffTestExpectedDecimals(
+    getTestTokenId(), getTestAccountId(), getTestAmount(), 2U, getTestIsApproval());
+  TokenTransfer diffTestIsApproval(
+    getTestTokenId(), getTestAccountId(), getTestAmount(), getTestExpectedDecimals(), false);
+
+  // Then
+  EXPECT_FALSE(testTokenTransfer == diffTestToken);
+  EXPECT_FALSE(testTokenTransfer == diffTestAccountId);
+  EXPECT_FALSE(testTokenTransfer == diffTestAmount);
+  EXPECT_FALSE(testTokenTransfer == diffTestExpectedDecimals);
+  EXPECT_FALSE(testTokenTransfer == diffTestIsApproval);
+}