Merge "Setup tests for libtrusty-rs" am: 3153efa8

        "libnix",

    ],

}

rust_test {

    name: "libtrusty-rs-tests",

    crate_name: "trusty_test",

    srcs: ["tests/test.rs"],

    rustlibs: [

        "libtrusty-rs",

    ]

}

    /// Receives a message from the connected service.

    ///

    /// Returns the number of bytes in the received message, or any error that

    /// occurred when reading the message. A return value of 0 indicates that

    /// there were no incoming messages to receive.

    /// occurred when reading the message. Blocks until there is a message to

    /// receive if none is already ready to read.

    ///

    /// # Errors

    ///

    /// Returns an error with native error code 90 (`EMSGSIZE`) if `buf` isn't

    /// large enough to contain the incoming message. Use

    /// [`raw_os_error`][std::io::Error::raw_os_error] to check the error code

    /// to determine if you need to increase the size of `buf`.

    /// Returns an error with native error code 90 (`EMSGSIZE`) if `buf` isn't large

    /// enough to contain the incoming message. Use

    /// [`raw_os_error`][std::io::Error::raw_os_error] to check the error code to

    /// determine if you need to increase the size of `buf`.

    pub fn recv(&mut self, buf: &mut [u8]) -> io::Result<usize> {

        self.0.read(buf)

    }

use trusty::{TipcChannel, DEFAULT_DEVICE};

const ECHO_NAME: &str = "com.android.ipc-unittest.srv.echo";

#[test]

fn echo() {

    let mut connection = TipcChannel::connect(DEFAULT_DEVICE, ECHO_NAME)

        .expect("Failed to connect to Trusty service");

    // Send a message to the echo TA.

    let send_buf = [7u8; 32];

    connection.send(send_buf.as_slice()).unwrap();

    // Receive the response message from the TA.

    let mut recv_buf = [0u8; 32];

    let read_len = connection.recv(&mut recv_buf).expect("Failed to read from connection");

    assert_eq!(

        send_buf.len(),

        read_len,

        "Received data was wrong size (expected {} bytes, received {})",

        send_buf.len(),

        read_len,

    );

    assert_eq!(send_buf, recv_buf, "Received data does not match sent data");

}