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Add compile-fail tests for transparent error messages

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David Tolnay 2018-05-20 15:28:08 -07:00
parent ac1b25e91d
commit b13875dd97
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3 changed files with 62 additions and 0 deletions
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20
test_suite/tests/compile-fail/transparent/at_most_one.rs Normal file
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// Copyright 2018 Serde Developers
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
#[macro_use]
extern crate serde_derive;
#[derive(Serialize)] //~ ERROR: proc-macro derive panicked
#[serde(transparent)]
struct S {
//~^^^ HELP: #[serde(transparent)] requires struct to have at most one transparent field
a: u8,
b: u8,
}
fn main() {}

22
test_suite/tests/compile-fail/transparent/de_at_least_one.rs Normal file
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// Copyright 2018 Serde Developers
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
#[macro_use]
extern crate serde_derive;
#[derive(Deserialize)] //~ ERROR: proc-macro derive panicked
#[serde(transparent)]
struct S {
//~^^^ HELP: #[serde(transparent)] requires at least one field that is neither skipped nor has a default
#[serde(skip)]
a: u8,
#[serde(default)]
b: u8,
}
fn main() {}

20
test_suite/tests/compile-fail/transparent/ser_at_least_one.rs Normal file
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// Copyright 2018 Serde Developers
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
#[macro_use]
extern crate serde_derive;
#[derive(Serialize)] //~ ERROR: proc-macro derive panicked
#[serde(transparent)]
struct S {
//~^^^ HELP: #[serde(transparent)] requires at least one field that is not skipped
#[serde(skip)]
a: u8,
}
fn main() {}