seeIsNotSoftDeletedInDatabase.php

<?php
/**
 * Assert that a given where condition does not matches a soft deleted record
 *
 * @param  string $table
 * @param  array  $data
 * @param  string $connection
 * @return $this
 */
protected function seeIsNotSoftDeletedInDatabase($table, array $data, $connection = null)
{
    $database = $this->app->make('db');

    $connection = $connection ?: $database->getDefaultConnection();

    $count = $database->connection($connection)
        ->table($table)
        ->where($data)
        ->whereNull('deleted_at')
        ->count();

    $this->assertGreaterThan(0, $count, sprintf(
        'Found unexpected records in database table [%s] that matched attributes [%s].', $table, json_encode($data)
    ));

    return $this;
}

seeIsSoftDeletedInDatabase.php

<?php
/**
 * Assert that a given where condition matches a soft deleted record
 *
 * @param  string $table
 * @param  array  $data
 * @param  string $connection
 * @return $this
 */
protected function seeIsSoftDeletedInDatabase($table, array $data, $connection = null)
{
    $database = $this->app->make('db');

    $connection = $connection ?: $database->getDefaultConnection();

    $count = $database->connection($connection)
        ->table($table)
        ->where($data)
        ->whereNotNull('deleted_at')
        ->count();

    $this->assertGreaterThan(0, $count, sprintf(
        'Found unexpected records in database table [%s] that matched attributes [%s].', $table, json_encode($data)
    ));

    return $this;
}

Very useful. Thank you.