composer/tests/Composer/Test/Util/Fixtures/composer_provide-replace-requirements.json

{
    "license": "MIT",
    "require": {
        "a/a": "^1.0",
        "b/b": "^2.0"
    },
    "require-dev": {
        "c/c": "^2.0"
    },
    "provide": {
        "a/a": "1.0.0",
        "c/c": "1.0.0"
    },
    "replace": {
        "b/b": "3.0.0"
    }
}