refactor: luhncheck module (#775)

- luhncheck module migration from class to functions within common namespace

- modified reference to functions and variables from luhncheck module in all dependent modules

Signed-off-by: Guru Mehar Rachaputi <gurumeharrachaputi@gmail.com>

src/common/LuhnCheck.cpp

@@ -4,9 +4,9 @@
 #include <cctype>
 #include <string>
 
-namespace faker
+namespace faker::common
 {
-int LuhnCheck::luhnCheckSum(const std::string& inputString)
+int luhnCheckSum(const std::string& inputString)
 {
     std::string modifiedStr = inputString;
     modifiedStr.erase(
@@ -36,12 +36,12 @@ int LuhnCheck::luhnCheckSum(const std::string& inputString)
     return sum % 10;
 }
 
-bool LuhnCheck::luhnCheck(const std::string& inputString)
+bool luhnCheck(const std::string& inputString)
 {
     return luhnCheckSum(inputString) == 0;
 }
 
-int LuhnCheck::luhnCheckValue(const std::string& inputString)
+int luhnCheckValue(const std::string& inputString)
 {
     int checksum = luhnCheckSum(inputString.substr(0, inputString.length() - 1) + '0');
 

src/common/LuhnCheck.h

@@ -3,11 +3,8 @@
 #include <string>
 #include "faker-cxx/Export.h"
 
-namespace faker
+namespace faker::common
 {
-class LuhnCheck
-{
-public:
     /**
      * @brief Returns luhn checksum value for the given value.
      *
@@ -16,7 +13,7 @@ class LuhnCheck
      * @return The luhn checksum value for the given value.
      *
      */
-    FAKER_CXX_EXPORT static int luhnCheckSum(const std::string& inputString);
+    FAKER_CXX_EXPORT int luhnCheckSum(const std::string& inputString);
 
     /**
      * @brief Checks that the given string passes the luhn algorithm.
@@ -26,7 +23,7 @@ class LuhnCheck
      * @return Is the string pass the check or not.
      *
      */
-    FAKER_CXX_EXPORT static bool luhnCheck(const std::string& inputString);
+    FAKER_CXX_EXPORT bool luhnCheck(const std::string& inputString);
 
     /**
      * @brief Returns the luhn check value for the given string.
@@ -37,6 +34,5 @@ class LuhnCheck
      * @return the luhn check value for the given string.
      *
      */
-    FAKER_CXX_EXPORT static int luhnCheckValue(const std::string& inputString);
-};
+    FAKER_CXX_EXPORT int luhnCheckValue(const std::string& inputString);
 }

src/modules/helper/Helper.cpp

@@ -52,7 +52,7 @@ std::string replaceCreditCardSymbols(const std::string& inputString, char symbol
     modifiedString = replaceSymbolWithNumber(modifiedString, symbol);
 
     // Calculate the luhnCheckValue and replace 'L' with the checkNum
-    int checkNum = LuhnCheck::luhnCheckValue(modifiedString);
+    int checkNum = common::luhnCheckValue(modifiedString);
 
     size_t pos = modifiedString.find('L');
 

tests/common/LuhnCheckTest.cpp

@@ -5,17 +5,18 @@
 #include "gtest/gtest.h"
 
 using namespace faker;
+using namespace faker::common;
 
 TEST(LuhnCheckTest, BasicTest)
 {
     std::string input = "6453-4876-8626-8995-3771";
-    bool result = LuhnCheck::luhnCheck(input);
+    bool result = luhnCheck(input);
     EXPECT_TRUE(result);
 }
 
 TEST(LuhnCheckValueTest, BasicTest)
 {
     std::string input = "6453-4876-8626-8995-377L";
-    int result = LuhnCheck::luhnCheckValue(input);
+    int result = luhnCheckValue(input);
     EXPECT_EQ(result, 1);
 }

tests/modules/finance/FinanceTest.cpp

@@ -290,7 +290,7 @@ TEST_F(FinanceTest, shouldGenerateCreditCardNumber)
     const auto generatedCreditCardNumber = creditCardNumber();
 
     ASSERT_TRUE(checkIfAllCharactersAreCreditCardCharacters(generatedCreditCardNumber));
-    ASSERT_TRUE(LuhnCheck::luhnCheck(generatedCreditCardNumber));
+    ASSERT_TRUE(common::luhnCheck(generatedCreditCardNumber));
 }
 
 TEST_F(FinanceTest, shouldGenerateAmericanExpressCreditCardNumber)
@@ -299,7 +299,7 @@ TEST_F(FinanceTest, shouldGenerateAmericanExpressCreditCardNumber)
 
     ASSERT_TRUE(generatedCreditCardNumber.starts_with("34") || generatedCreditCardNumber.starts_with("37"));
     ASSERT_TRUE(checkIfAllCharactersAreCreditCardCharacters(generatedCreditCardNumber));
-    ASSERT_TRUE(LuhnCheck::luhnCheck(generatedCreditCardNumber));
+    ASSERT_TRUE(common::luhnCheck(generatedCreditCardNumber));
 }
 
 TEST_F(FinanceTest, shouldGenerateDiscoverCreditCardNumber)
@@ -312,7 +312,7 @@ TEST_F(FinanceTest, shouldGenerateDiscoverCreditCardNumber)
                 generatedCreditCardNumber.starts_with("648") || generatedCreditCardNumber.starts_with("649") ||
                 generatedCreditCardNumber.starts_with("6011-62"));
     ASSERT_TRUE(checkIfAllCharactersAreCreditCardCharacters(generatedCreditCardNumber));
-    ASSERT_TRUE(LuhnCheck::luhnCheck(generatedCreditCardNumber));
+    ASSERT_TRUE(common::luhnCheck(generatedCreditCardNumber));
 }
 
 TEST_F(FinanceTest, shouldGenerateMasterCardCreditCardNumber)
@@ -323,7 +323,7 @@ TEST_F(FinanceTest, shouldGenerateMasterCardCreditCardNumber)
                 generatedCreditCardNumber.starts_with("53") || generatedCreditCardNumber.starts_with("54") ||
                 generatedCreditCardNumber.starts_with("55") || generatedCreditCardNumber.starts_with("6771-89"));
     ASSERT_TRUE(checkIfAllCharactersAreCreditCardCharacters(generatedCreditCardNumber));
-    ASSERT_TRUE(LuhnCheck::luhnCheck(generatedCreditCardNumber));
+    ASSERT_TRUE(common::luhnCheck(generatedCreditCardNumber));
 }
 
 TEST_F(FinanceTest, shouldGenerateVisaCreditCardNumber)
@@ -332,7 +332,7 @@ TEST_F(FinanceTest, shouldGenerateVisaCreditCardNumber)
 
     ASSERT_TRUE(generatedCreditCardNumber.starts_with("4"));
     ASSERT_TRUE(checkIfAllCharactersAreCreditCardCharacters(generatedCreditCardNumber));
-    ASSERT_TRUE(LuhnCheck::luhnCheck(generatedCreditCardNumber));
+    ASSERT_TRUE(common::luhnCheck(generatedCreditCardNumber));
 }
 
 TEST_F(FinanceTest, shouldGenerateCreditCardCvv)