src/sys/test_runners/rust/test_data/concurrency-test/meta/concurrency-test.cml

// Component test which will inject a test and a echo server. The test cases are supposed
// to be executed in parallel to succeed as echo server will only reply back once it gets
// 5 requests.
{
    children: [
        {
            name: "echo_server",
            url: "fuchsia-pkg://fuchsia.com/rust-test-runner-example#meta/echo-server-for-concurrency-test.cm",
        },
        {
            name: "concurrency_test_driver",
            url: "fuchsia-pkg://fuchsia.com/rust-test-runner-example#meta/concurrency-test-driver.cm",
            startup: "eager",
        },
    ],
    offer: [
        {
            protocol: "fidl.examples.routing.echo.Echo",
            from: "#echo_server",
            to: [ "#concurrency_test_driver" ],
        },
        {
            protocol: "fuchsia.logger.LogSink",
            from: "parent",
            to: [ "#concurrency_test_driver" ],
        },
    ],
    expose: [
        {
            protocol: "fuchsia.test.Suite",
            from: "#concurrency_test_driver",
        },
    ],
}