#!/bin/bash    
javac src/main/java/is/ru/stringcalculator/*.java -d classes

 #!/bin/bash
 rm -r classes/*

#!/bin/bash
javac -classpath "classes/:lib/junit-4.11.jar" src/test/java/is/ru/stringcalculator/*.java -d classes

#!/bin/bash
java -cp "classes/:lib/junit-4.11.jar:lib/hamcrest-core-1.3.jar" org.junit.runner.JUnitCore is.ru.stringcalculator.CalculatorTest 

  #!/bin/bash
./bin/clean
./bin/compile
./bin/compile_tests
./bin/unit_test

@Test
public void testEmptyString() {
	assertEquals(0, Calculator.add(""));
}

public static int add(String test){
    return 0;
} 

@Test
public void testOneNumber(){
	assertEquals(1, Calculator.add("1"));
}

public static int add(String text){
    if(text.equals("")){
	    return 0;
    }
    else
    	return 1;

@Test
public void testTwoStrings(){
	assertEquals(3, Calculator.add("1,2"));
}

 if(text.equals("")){
    return 0;
}
else if(text.contains(",")){
	String[] numbers = text.split(",");
	return toInt(numbers[0]) + toInt(numbers[1]);
}
else
	return 1;

#Refactor
private static int toInt(String number){
	return Integer.parseInt(number);
}

@Test
public void testMultipleNumbers(){
	assertEquals(6, Calculator.add("1,2,3"));
}

else if(text.contains(",")){
    String[] numbers = text.split(",");
    int total = 0;
    for(String number : numbers){
	    total += toInt(number);
	}
	return total;
}
#Refactor
private static String[] splitNumbers(String numbers){
    return numbers.split(",");
}
  
private static int sum(String[] numbers){
    int total = 0;
    for(String number : numbers){
	    total += toInt(number);
	}
	return total;
}
#After refactoring
public static int add(String text){
	if(text.equals("")){
		return 0;
	}
	else if(text.contains(",")){
		return sum(splitNumbers(text));
	}
	else
		return 1;
}