Row actions not showing? Why?

In display_rows() you are using the following code to print the ‘name’ column:

echo '<td '.$attributes.'><strong><a href="'.$editlink.'" title="Edit">'.stripslashes($rec->name).'</a></strong></td>';

Nowhere do you call column_name(), which is the function you’ve defined to display the item’s and row actions:

function column_name($item){
    $actions = array(
        'edit'      => sprintf('<a href="https://wordpress.stackexchange.com/questions/76517/?page=%s&action=%s&testimonial=%s">Edit</a>',$_REQUEST['page'],'edit',$item['ID']),
        'delete'    => sprintf('<a href="https://wordpress.stackexchange.com/questions/76517/?page=%s&action=%s&testimonial=%s">Delete</a>',$_REQUEST['page'],'delete',$item['ID']),
    );

    //Return the title contents
    return sprintf('%1$s <span style="color:silver">(id:%2$s)</span>%3$s',
        /*$1%s*/ $item['name'],
        /*$2%s*/ $item['ID'],
        /*$3%s*/ $this->row_actions($actions)
    );
}

See, for example, how the underlying WP_List_Table does it.

In fact, if you avoid over-riding the underlying class’s display_rows() method then it will automatically use your column_{$column_id}() method (where it exists), to define the content of the column. This makes it much easier to maintain than your current switch statement.