Java

public class Solution { public static void main(String[] args) throws Exception {

    TestDataEmptyArray tea=new TestDataEmptyArray();

    try
    {
        if(tea.get_array().length==0)
        {
            throw new Exception("Cannot get the minimum value index from an empty sequence");
        }
    }
    catch(Exception ex)
    {
        if(ex.getMessage() == "Cannot get the minimum value index from an empty sequence")
        {
            //System.out.print("OK");
        }
    }

    TestDataUniqueValues tduv = new TestDataUniqueValues();

    var temp=tduv.get_array();

    int minidx=0;

    for (int i=0; i<temp.length;i++) 
    {
        if(temp[i]<temp[minidx])
        {
            minidx=i;
        }
    }

    if(minidx == tduv.get_expected_result())
    {
        //System.out.print("OK");
    }

    TestDataExactlyTwoDifferentMinimums tdtdm=new TestDataExactlyTwoDifferentMinimums();

    temp=tdtdm.get_array();

    var res= -1;

    int minItem=999999999;

    for (int i=0; i<temp.length;i++) 
    {
        if(temp[i]<minItem)
        {
            minItem=temp[i];
            res=i;
        }
    }

    var tres = tdtdm.get_expected_result();

    if(tres==res)
    {
        System.out.print("OK");
    }
}

}

class TestDataEmptyArray { public int[] get_array() { return new int[0]; } }

class TestDataUniqueValues { public int[] get_array() { return new int[]{3,2,6,9,6}; }

public int get_expected_result()
{
    return 1;
}

}

class TestDataExactlyTwoDifferentMinimums { public int[] get_array() { return new int[]{3,2,6,9,2,6}; }

public int get_expected_result()
{
    return 1;
}

}