/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE191_Integer_Underflow__int_PropertiesFile_multiply_61a.java
Label Definition File: CWE191_Integer_Underflow__int.label.xml
Template File: sources-sinks-61a.tmpl.java
*/
/*
 * @description
 * CWE: 191 Integer Underflow
 * BadSource: PropertiesFile Read data from a .properties file (in property named data)
 * GoodSource: A hardcoded non-zero, non-min, non-max, even number
 * Sinks: multiply
 *    GoodSink: Ensure there will not be an underflow before multiplying data by 2
 *    BadSink : If data is negative, multiply by 2, which can cause an underflow
 * Flow Variant: 61 Data flow: data returned from one method to another in different classes in the same package
 *
 * */






public class CWE191_Integer_Underflow__int_PropertiesFile_multiply_61a extends AbstractTestCase
{
    public void bad() throws Throwable
    {
        int data = (new CWE191_Integer_Underflow__int_PropertiesFile_multiply_61b()).badSource();

        if(data < 0) /* ensure we won't have an overflow */
        {
            /* POTENTIAL FLAW: if (data * 2) < Integer.MIN_VALUE, this will underflow */
            int result = (int)(data * 2);
            IO.writeLine("result: " + result);
        }

    }

    public void good() throws Throwable
    {
        goodG2B();
        goodB2G();
    }

    /* goodG2B() - use goodsource and badsink */
    private void goodG2B() throws Throwable
    {
        int data = (new CWE191_Integer_Underflow__int_PropertiesFile_multiply_61b()).goodG2BSource();

        if(data < 0) /* ensure we won't have an overflow */
        {
            /* POTENTIAL FLAW: if (data * 2) < Integer.MIN_VALUE, this will underflow */
            int result = (int)(data * 2);
            IO.writeLine("result: " + result);
        }

    }

    /* goodB2G() - use badsource and goodsink */
    private void goodB2G() throws Throwable
    {
        int data = (new CWE191_Integer_Underflow__int_PropertiesFile_multiply_61b()).goodB2GSource();

        if(data < 0) /* ensure we won't have an overflow */
        {
            /* FIX: Add a check to prevent an underflow from occurring */
            if (data > (Integer.MIN_VALUE/2))
            {
                int result = (int)(data * 2);
                IO.writeLine("result: " + result);
            }
            else
            {
                IO.writeLine("data value is too small to perform multiplication.");
            }
        }

    }

    /* Below is the main(). It is only used when building this testcase on
     * its own for testing or for building a binary to use in testing binary
     * analysis tools. It is not used when compiling all the testcases as one
     * application, which is how source code analysis tools are tested.
     */
    public static void main(String[] args) throws ClassNotFoundException,
           InstantiationException, IllegalAccessException
    {
        mainFromParent(args);
    }
}
