{
    "name": "byjg/omnipay-komerci",
    "description": "Komerci is brazilian acquirer solution provided by Rede (former RedeCard) that accept payments with MasterCard, Visa and Diners Club International credit cards on the Internet",
    "authors": [
        {
            "name": "jg",
            "email": "joao@byjg.com.br"
        }
    ],
    "autoload": {
        "psr-0": { "Omnipay\\Komerci\\" : "src/" }
    },
    "require": {
        "php": ">=5.4.0",
        "omnipay/common": "~2.0"
    },
    "require-dev": {
        "phpunit/phpunit": "5.7.*|7.4.*",
        "omnipay/tests": "~2.0"
    },
    "license": "MIT"
}

{
    "name": "byjg/omnipay-komerci",
    "description": "Komerci is brazilian acquirer solution provided by Rede (former RedeCard) that accept payments with MasterCard, Visa and Diners Club International credit cards on the Internet",
    "authors": [
        {
            "name": "jg",
            "email": "joao@byjg.com.br"
        }
    ],
    "autoload": {
        "psr-0": { "Omnipay\\Komerci\\" : "src/" }
    },
    "require": {
        "php": ">=5.4.0",
        "omnipay/common": "~2.0"
    },
    "require-dev": {
        "phpunit/phpunit": "4.8.*",
        "omnipay/tests": "~2.0"
    },
    "license": "MIT"
}

Use PHPUnit that matches omnipay
Use PHPUnit that matches omnipay