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This attempts to centralize all the edition stuff in one place (the `Edition` enum) so that adding a new edition or stabilizing one should be relatively little work (and more importantly, we don't miss things). Importantly, this changes `cargo new` to default to the latest stable. It also changes the `cargo fix --edition-idiom` behavior to only apply idioms for the *current* edition.
127 lines
3.1 KiB
Rust
127 lines
3.1 KiB
Rust
//! Tests for edition setting.
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use cargo::core::Edition;
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use cargo_test_support::{basic_lib_manifest, is_nightly, project};
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#[cargo_test]
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fn edition_works_for_build_script() {
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let p = project()
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.file(
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"Cargo.toml",
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r#"
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[package]
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name = 'foo'
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version = '0.1.0'
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edition = '2018'
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[build-dependencies]
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a = { path = 'a' }
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"#,
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)
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.file("src/lib.rs", "")
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.file(
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"build.rs",
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r#"
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fn main() {
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a::foo();
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}
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"#,
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)
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.file("a/Cargo.toml", &basic_lib_manifest("a"))
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.file("a/src/lib.rs", "pub fn foo() {}")
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.build();
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p.cargo("build -v").run();
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}
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#[cargo_test]
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fn edition_unstable_gated() {
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// During the period where a new edition is coming up, but not yet stable,
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// this test will verify that it cannot be used on stable. If there is no
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// next edition, it does nothing.
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let next = match Edition::LATEST_UNSTABLE {
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Some(next) => next,
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None => {
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eprintln!("Next edition is currently not available, skipping test.");
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return;
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}
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};
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let p = project()
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.file(
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"Cargo.toml",
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&format!(
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r#"
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[package]
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name = "foo"
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version = "0.1.0"
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edition = "{}"
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"#,
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next
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),
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)
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.file("src/lib.rs", "")
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.build();
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p.cargo("check")
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.with_status(101)
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.with_stderr(&format!(
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"\
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[ERROR] failed to parse manifest at `[..]/foo/Cargo.toml`
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Caused by:
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feature `edition{next}` is required
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this Cargo does not support nightly features, but if you
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switch to nightly channel you can add
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`cargo-features = [\"edition{next}\"]` to enable this feature
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",
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next = next
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))
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.run();
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}
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#[cargo_test]
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fn edition_unstable() {
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// During the period where a new edition is coming up, but not yet stable,
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// this test will verify that it can be used with `cargo-features`. If
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// there is no next edition, it does nothing.
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if !is_nightly() {
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// This test is fundamentally always nightly.
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return;
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}
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let next = match Edition::LATEST_UNSTABLE {
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Some(next) => next,
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None => {
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eprintln!("Next edition is currently not available, skipping test.");
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return;
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}
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};
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let p = project()
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.file(
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"Cargo.toml",
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&format!(
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r#"
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cargo-features = ["edition{next}"]
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[package]
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name = "foo"
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version = "0.1.0"
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edition = "{next}"
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"#,
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next = next
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),
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)
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.file("src/lib.rs", "")
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.build();
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p.cargo("check")
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.masquerade_as_nightly_cargo()
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.with_stderr(
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"\
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[CHECKING] foo [..]
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[FINISHED] [..]
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",
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)
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.run();
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}
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