implement unit tests for the function validPhoneNumber().

src/createEmployeeAccount.c

@@ -67,6 +67,25 @@ bool isValidName(char* name,const int minimalLength)
     return true;
 }
 
+bool isValidPhoneNumber(char *phoneNumber)
+{
+    const int validNumberLength = 14;
+    int numberLength = strlen(phoneNumber);
+
+    if(numberLength != validNumberLength)
+    {
+        return false;
+    }
+
+    if(phoneNumber[0]!='+' || phoneNumber[1]!='4' || phoneNumber[2]!='9')
+    {
+        return false;
+    }
+
+    return true;
+
+}
+
 int StringLengthCounter(char* string)
 {
     int characterCounter = 0;

src/createEmployeeAccount.h

@@ -26,6 +26,7 @@ bool createNewEmployee(char* employeeId, char* employeePassword);
 bool verifyPassword(char* enteredPassword,char* passwordConfirmation);
 bool storeEmployeeData(const char *name,const char *lastName,const char *adress,const char *phoneNumber);
 bool isValidName(char* name,int minimalLength);
+bool isValidPhoneNumber(char *phoneNumber);
 
 int StringLengthCounter(char* string);
 

tests/test_createEmployeeAccount.c

@@ -226,4 +226,42 @@ void test_invalidName(void)
 
 }
 
+void test_validPhoneNumber(void)
+{
+    /*Arrange*/
+    char* validPhoneNumbers[] = {"+4903584736198","+4912345678912","+4987541024534","+4932145784236","+4987264287139"};
+    bool validPhoneNumbersResult[5];
+
+    /*Act*/
+    for(int i =0;i<5;i++)
+    {
+        validPhoneNumbersResult[i] = isValidPhoneNumber(validPhoneNumbers[i]);
+    }
+    
+    /*Assert*/
+    for(int i=0;i<5;i++)
+    {
+        TEST_ASSERT_TRUE(validPhoneNumbersResult[i]);
+    }
+}
+
+void test_invalidPhoneNumber(void)
+{
+    /*Arrange*/
+    char* invalidPhoneNumbers[] = {"+490358473619812","+6112345678912","+498754","-4932145784236","123"};
+    bool invalidPhoneNumbersResult[2];
+
+    /*Act*/
+    for(int i =0;i<5;i++)
+    {
+        invalidPhoneNumbersResult[i] = isValidPhoneNumber(invalidPhoneNumbers[i]);
+    }
+    
+    /*Assert*/
+    for(int i=0;i<5;i++)
+    {
+        TEST_ASSERT_FALSE(invalidPhoneNumbersResult[i]);
+    }
+}
+
 #endif // TEST