– added an error message for the CalculatorAbstract class

– fixed the error message method's name for the TimeUtils class

src/Constants/ErrorMessages.php

@@ -133,17 +133,37 @@ static function getInvalidTypeMessage() {
         }
 
         /**
-         * @return string [message as a string]
+         * @return string [Message as a string]
          */
         static function getStartDateMustBeBeforeEndDateMessage() {
             return Strings::getString('message_start_date_must_be_before_end_date');
         }
 
         /**
-         * @return string [message as a string]
+         * @return string [Message as a string]
          */
-        static function getDayCountConventionNotDefined() {
+        static function getDayCountConventionNotDefinedMessage() {
             return Strings::getString('message_day_count_convention_not_defined');
         }
+
+        /**
+         * @return string [Message as a string]
+         */
+        static function getPropresultarrayNotSuppliedMessage() {
+            return Strings::getString('message_propresultarray_not_supplied');
+        }
+
+        /**
+         * @param $methodName [Name of the method]
+         * @param $className  [Name of the class]
+         * @return string     [Concatenated message as a string]
+         */
+        static function getMethodDoesNotExistMessage($methodName, $className) {
+            return Strings::getFormattedString(
+                'message_method_does_not_exist',
+                $methodName,
+                $className
+            );
+        }
     }
 }

src/Interfaces/Calculator/CalculatorAbstract.php

@@ -45,7 +45,7 @@ public final function getResultAsArray(array $propResultArray = null) {
                 if ($this->propResultArray !== null && is_array($this->propResultArray)) {
                     $propResultArray = $this->propResultArray;
                 } else {
-                    error_log('$propResultArray has not been supplied neither by the argument, nor by the class field');
+                    error_log(ErrorMessages::getPropresultarrayNotSuppliedMessage());
                     return false;
                 }
             }
@@ -58,7 +58,7 @@ public final function getResultAsArray(array $propResultArray = null) {
                         if (method_exists($this, $propGetter)) {
                             $processedArray[is_string($key) ? $key : $prop] = call_user_func(array($this, $propGetter));
                         } else {
-                            error_log("Method '" . $propGetter . "()' doesn't exist in the class " . get_class($this));
+                            error_log(ErrorMessages::getMethodDoesNotExistMessage($propGetter, get_class($this)));
                         }
                     }
                     if (is_array($prop)) {

src/Utils/Time/TimeUtils.php

@@ -131,7 +131,7 @@ public static function getCurrentDayCountConvention() {
                 return $dayCountConvention;
             }
 
-            throw new Exception(ErrorMessages::getDayCountConventionNotDefined());
+            throw new Exception(ErrorMessages::getDayCountConventionNotDefinedMessage());
         }
 
         /**

src/locale/en.php

@@ -16,5 +16,7 @@
     'message_class_not_defined' => 'Class %s not defined',
     'message_invalid_type_specified' => 'Invalid type specified!',
     'message_start_date_must_be_before_end_date' => 'Start date has to be lower than the end date!',
-    'message_day_count_convention_not_defined' => 'The day count convention is not defined properly in the config!'
+    'message_day_count_convention_not_defined' => 'The day count convention is not defined properly in the config!',
+    'message_propresultarray_not_supplied' => '$propResultArray has not been supplied neither by the argument, nor by the class field',
+    'message_method_does_not_exist' => 'Method %s doesn\'t exist in the class %s!'
 );