rust/test/shared/package_test.rs

// Protocol Buffers - Google's data interchange format
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/// Tests covering proto packages.

#[test]
fn test_packages() {
    // empty package, message declared in the first .proto source
    let _foo: no_package_proto::MsgWithoutPackage;
    // empty package, message declared in other .proto source
    let _foo: no_package_proto::OtherMsgWithoutPackage;
    // empty package, import public of a message
    let _foo: no_package_proto::ImportedMsgWithoutPackage;

    // package, message declared in the first .proto source
    let _foo: package_proto::testing_packages::MsgWithPackage;
    // package, message declared in the other .proto source with the same package
    let _foo: package_proto::testing_packages::OtherMsgWithPackage;
    // package, message declared in the other .proto source with a different package
    let _foo: package_proto::testing_other_packages::OtherMsgInDifferentPackage;
    // package, import public of a message
    let _foo: package_proto::testing_packages::ImportedMsgWithPackage;
}