--TEST--
Composer installers are installed first if they have no requirements
--COMPOSER--
{
    "repositories": [
        {
            "type": "package",
            "package": [
                { "name": "pkg", "version": "1.0.0" },
                { "name": "pkg2", "version": "1.0.0" },
                { "name": "inst", "version": "1.0.0", "type": "composer-installer" },
                { "name": "inst2", "version": "1.0.0", "type": "composer-installer", "require": { "pkg2": "*" } }
            ]
        }
    ],
    "require": {
        "pkg": "1.0.0",
        "inst": "1.0.0",
        "inst2": "1.0.0"
    }
}
--RUN--
install
--EXPECT--
Installing inst (1.0.0)
Installing pkg (1.0.0)
Installing pkg2 (1.0.0)
Installing inst2 (1.0.0)