// This test takes an array, loops through each top level index
// and logs an error if the index contains an array.
// Passes are tallied, and passes/fails are output at the end of the test.

const flattenTest = arr => {

    // Define error message and initialize pass counter
    const errorMessage = ind => `Index ${ind} contains an array`;
    let passCount = 0;
    
    arr.forEach((item, ind) => {

        // If the item is an array, log the message
        if(Array.isArray(item)){

            console.error(errorMessage(ind));
        
        // If not an array, increment pass counter
        } else {

            passCount++;

        }

    });

    // Log out results
    console.log(`${arr.length} total top level indexes.`);
    console.log(`${passCount} tests passed.`);
    console.log(`${arr.length - passCount} tests failed.`);

}

module.exports = flattenTest;