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Add some more explicit future-incompat tests

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This updates some tests to include the full output for both a local
crate and a dependency.
This commit is contained in:
Eric Huss 2025-03-21 15:52:43 -07:00
parent 941c414a90
commit afdfd9263e
1 changed files with 166 additions and 2 deletions
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168
tests/testsuite/future_incompat_report.rs
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@ -63,17 +63,181 @@ fn dependency_project() -> Project {
nightly,
reason = "-Zfuture-incompat-test requires nightly (permanently)"
)]
fn output_on_stable() {
fn incompat_in_local_crate() {
// A simple example where a local crate triggers a future-incompatibility warning.
let p = local_project();
p.cargo("check")
.env("RUSTFLAGS", "-Zfuture-incompat-test")
.with_stderr_data(str![[r#"
...
[CHECKING] foo v0.0.0 ([ROOT]/foo)
[WARNING] unused variable: `x`
...
[WARNING] `foo` (lib) generated 1 warning
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
[WARNING] the following packages contain code that will be rejected by a future version of Rust: foo v0.0.0 ([ROOT]/foo)
[NOTE] to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
"#]])
.run();
p.cargo("check --future-incompat-report")
.env("RUSTFLAGS", "-Zfuture-incompat-test")
.with_stderr_data(str![[r#"
[WARNING] unused variable: `x`
...
[WARNING] `foo` (lib) generated 1 warning
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
[WARNING] the following packages contain code that will be rejected by a future version of Rust: foo v0.0.0 ([ROOT]/foo)
[NOTE]
To solve this problem, you can try the following approaches:
- If the issue is not solved by updating the dependencies, a fix has to be
implemented by those dependencies. You can help with that by notifying the
maintainers of this problem (e.g. by creating a bug report) or by proposing a
fix to the maintainers (e.g. by creating a pull request):
- foo@0.0.0
- Repository: <not found>
- Detailed warning command: `cargo report future-incompatibilities --id 2 --package foo@0.0.0`
- If waiting for an upstream fix is not an option, you can use the `[patch]`
section in `Cargo.toml` to use your own version of the dependency. For more
information, see:
https://doc.rust-lang.org/cargo/reference/overriding-dependencies.html#the-patch-section
[NOTE] this report can be shown with `cargo report future-incompatibilities --id 1`
"#]])
.run();
p.cargo("report future-incompatibilities --id 1")
.with_stdout_data(str![[r#"
The following warnings were discovered during the build. These warnings are an
indication that the packages contain code that will become an error in a
future release of Rust. These warnings typically cover changes to close
soundness problems, unintended or undocumented behavior, or critical problems
that cannot be fixed in a backwards-compatible fashion, and are not expected
to be in wide use.
Each warning should contain a link for more information on what the warning
means and how to resolve it.
To solve this problem, you can try the following approaches:
- If the issue is not solved by updating the dependencies, a fix has to be
implemented by those dependencies. You can help with that by notifying the
maintainers of this problem (e.g. by creating a bug report) or by proposing a
fix to the maintainers (e.g. by creating a pull request):
- foo@0.0.0
- Repository: <not found>
- Detailed warning command: `cargo report future-incompatibilities --id 1 --package foo@0.0.0`
- If waiting for an upstream fix is not an option, you can use the `[patch]`
section in `Cargo.toml` to use your own version of the dependency. For more
information, see:
https://doc.rust-lang.org/cargo/reference/overriding-dependencies.html#the-patch-section
The package `foo v0.0.0 ([ROOT]/foo)` currently triggers the following future incompatibility lints:
> [WARNING] unused variable: `x`
...
"#]])
.run();
}
#[cargo_test(
nightly,
reason = "-Zfuture-incompat-test requires nightly (permanently)"
)]
fn incompat_in_dependency() {
// A simple example where a remote dependency triggers a future-incompatibility warning.
let p = dependency_project();
p.cargo("check")
.env("RUSTFLAGS", "-Zfuture-incompat-test")
.with_stderr_data(str![[r#"
[UPDATING] `dummy-registry` index
[LOCKING] 1 package to latest compatible version
[DOWNLOADING] crates ...
[DOWNLOADED] bar v1.0.0 (registry `dummy-registry`)
[CHECKING] bar v1.0.0
[CHECKING] foo v1.0.0 ([ROOT]/foo)
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
[WARNING] the following packages contain code that will be rejected by a future version of Rust: bar v1.0.0
[NOTE] to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
"#]])
.run();
p.cargo("check --future-incompat-report")
.env("RUSTFLAGS", "-Zfuture-incompat-test")
.with_stderr_data(str![[r#"
[FINISHED] `dev` profile [unoptimized + debuginfo] target(s) in [ELAPSED]s
[WARNING] the following packages contain code that will be rejected by a future version of Rust: bar v1.0.0
[NOTE]
To solve this problem, you can try the following approaches:
- If the issue is not solved by updating the dependencies, a fix has to be
implemented by those dependencies. You can help with that by notifying the
maintainers of this problem (e.g. by creating a bug report) or by proposing a
fix to the maintainers (e.g. by creating a pull request):
- bar@1.0.0
- Repository: https://example.com/
- Detailed warning command: `cargo report future-incompatibilities --id 2 --package bar@1.0.0`
- If waiting for an upstream fix is not an option, you can use the `[patch]`
section in `Cargo.toml` to use your own version of the dependency. For more
information, see:
https://doc.rust-lang.org/cargo/reference/overriding-dependencies.html#the-patch-section
[NOTE] this report can be shown with `cargo report future-incompatibilities --id 1`
"#]])
.run();
p.cargo("report future-incompatibilities --id 1")
.with_stdout_data(str![[r#"
The following warnings were discovered during the build. These warnings are an
indication that the packages contain code that will become an error in a
future release of Rust. These warnings typically cover changes to close
soundness problems, unintended or undocumented behavior, or critical problems
that cannot be fixed in a backwards-compatible fashion, and are not expected
to be in wide use.
Each warning should contain a link for more information on what the warning
means and how to resolve it.
To solve this problem, you can try the following approaches:
- If the issue is not solved by updating the dependencies, a fix has to be
implemented by those dependencies. You can help with that by notifying the
maintainers of this problem (e.g. by creating a bug report) or by proposing a
fix to the maintainers (e.g. by creating a pull request):
- bar@1.0.0
- Repository: https://example.com/
- Detailed warning command: `cargo report future-incompatibilities --id 1 --package bar@1.0.0`
- If waiting for an upstream fix is not an option, you can use the `[patch]`
section in `Cargo.toml` to use your own version of the dependency. For more
information, see:
https://doc.rust-lang.org/cargo/reference/overriding-dependencies.html#the-patch-section
The package `bar v1.0.0` currently triggers the following future incompatibility lints:
> [WARNING] unused variable: `x`
...
"#]])
.run();
}