--TEST--
Installs from composer.json without writing a lock file
--COMPOSER--
{
    "repositories": [
        {
            "type": "package",
            "package": [
                { "name": "a/a", "version": "1.0.0" }
            ]
        }
    ],
    "require": {
        "a/a": "1.0.0"
    },
    "config": {
        "lock": "false"
    }
}
--RUN--
install
--EXPECT--
Installing a/a (1.0.0)
--EXPECT-LOCK--
false
