use crate::prelude::*;
use cargo::core::Edition;
use cargo_test_support::{basic_lib_manifest, project, str};
#[cargo_test]
fn edition_works_for_build_script() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = 'foo'
version = '0.1.0'
edition = '2018'
[build-dependencies]
a = { path = 'a' }
"#,
)
.file("src/lib.rs", "")
.file(
"build.rs",
r#"
fn main() {
a::foo();
}
"#,
)
.file("a/Cargo.toml", &basic_lib_manifest("a"))
.file("a/src/lib.rs", "pub fn foo() {}")
.build();
p.cargo("check -v").run();
}
#[cargo_test]
fn edition_unstable_gated() {
let next = match Edition::LATEST_UNSTABLE {
Some(next) => next,
None => {
eprintln!("Next edition is currently not available, skipping test.");
return;
}
};
let p = project()
.file(
"Cargo.toml",
&format!(
r#"
[package]
name = "foo"
version = "0.1.0"
edition = "{}"
"#,
next
),
)
.file("src/lib.rs", "")
.build();
p.cargo("check")
.with_status(101)
.with_stderr_data(format!(
"\
[ERROR] failed to parse manifest at `[ROOT]/foo/Cargo.toml`
Caused by:
feature `edition{next}` is required
The package requires the Cargo feature called `edition{next}`, but that feature is not stabilized in this version of Cargo (1.[..]).
Consider trying a newer version of Cargo (this may require the nightly release).
See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#edition-{next} for more information about the status of this feature.
"))
.run();
}
#[cargo_test(nightly, reason = "fundamentally always nightly")]
fn edition_unstable() {
let next = match Edition::LATEST_UNSTABLE {
Some(next) => next,
None => {
eprintln!("Next edition is currently not available, skipping test.");
return;
}
};
let p = project()
.file(
"Cargo.toml",
&format!(
r#"
cargo-features = ["edition{next}"]
[package]
name = "foo"
version = "0.1.0"
edition = "{next}"
"#,
next = next
),
)
.file("src/lib.rs", "")
.build();
p.cargo("check")
.masquerade_as_nightly_cargo(&["always_nightly"])
.with_stderr_data(str![[r#"
[CHECKING] foo v0.1.0 ([ROOT]/foo)
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn unset_edition_with_unset_rust_version() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = 'foo'
version = '0.1.0'
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("check -v")
.with_stderr_data(str![[r#"
[WARNING] no edition set: defaulting to the 2015 edition while the latest is [..]
[CHECKING] foo v0.1.0 ([ROOT]/foo)
[RUNNING] `rustc [..] --edition=2015 [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn unset_edition_works_with_no_newer_compatible_edition() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = 'foo'
version = '0.1.0'
rust-version = "1.0"
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("check -v")
.with_stderr_data(str![[r#"
[CHECKING] foo v0.1.0 ([ROOT]/foo)
[RUNNING] `rustc [..] --edition=2015 [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn unset_edition_works_on_old_msrv() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = 'foo'
version = '0.1.0'
rust-version = "1.50" # contains 2018 edition
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("check -v")
.with_stderr_data(str![[r#"
[WARNING] no edition set: defaulting to the 2015 edition while 2018 is compatible with `rust-version`
[CHECKING] foo v0.1.0 ([ROOT]/foo)
[RUNNING] `rustc [..] --edition=2015 [..]`
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}
#[cargo_test]
fn future_edition_is_gated() {
let p = project()
.file(
"Cargo.toml",
r#"
[package]
name = "foo"
edition = "future"
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("check")
.with_status(101)
.with_stderr_data(str![[r#"
[ERROR] failed to parse manifest at `[ROOT]/foo/Cargo.toml`
Caused by:
feature `unstable-editions` is required
The package requires the Cargo feature called `unstable-editions`, but that feature is not stabilized in this version of Cargo ([..]).
Consider trying a newer version of Cargo (this may require the nightly release).
See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#unstable-editions for more information about the status of this feature.
"#]])
.run();
p.cargo("check")
.masquerade_as_nightly_cargo(&["unstable-editions"])
.with_status(101)
.with_stderr_data(str![[r#"
[ERROR] failed to parse manifest at `[ROOT]/foo/Cargo.toml`
Caused by:
feature `unstable-editions` is required
The package requires the Cargo feature called `unstable-editions`, but that feature is not stabilized in this version of Cargo ([..]).
Consider adding `cargo-features = ["unstable-editions"]` to the top of Cargo.toml (above the [package] table) to tell Cargo you are opting in to use this unstable feature.
See https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#unstable-editions for more information about the status of this feature.
"#]])
.run();
}
#[cargo_test(nightly, reason = "future edition is always unstable")]
fn future_edition_works() {
let p = project()
.file(
"Cargo.toml",
r#"
cargo-features = ["unstable-editions"]
[package]
name = "foo"
edition = "future"
"#,
)
.file("src/lib.rs", "")
.build();
p.cargo("check")
.masquerade_as_nightly_cargo(&["unstable-editions"])
.with_stderr_data(str![[r#"
[CHECKING] foo v0.0.0 ([ROOT]/foo)
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
"#]])
.run();
}