mirror of
https://github.com/rust-lang/cargo
synced 2024-08-25 10:35:53 +00:00
176 lines
4.8 KiB
Rust
176 lines
4.8 KiB
Rust
//! Tests for build.rs rerun-if-env-changed and rustc-env
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use cargo_test_support::basic_manifest;
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use cargo_test_support::project;
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use cargo_test_support::sleep_ms;
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#[cargo_test]
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fn rerun_if_env_changes() {
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let p = project()
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.file("src/main.rs", "fn main() {}")
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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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println!("cargo:rerun-if-env-changed=FOO");
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}
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"#,
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)
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.build();
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p.cargo("build")
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.with_stderr(
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"\
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[COMPILING] foo v0.0.1 ([..])
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[FINISHED] [..]
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",
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)
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.run();
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p.cargo("build")
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.env("FOO", "bar")
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.with_stderr(
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"\
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[COMPILING] foo v0.0.1 ([..])
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[FINISHED] [..]
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",
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)
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.run();
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p.cargo("build")
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.env("FOO", "baz")
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.with_stderr(
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"\
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[COMPILING] foo v0.0.1 ([..])
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[FINISHED] [..]
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",
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)
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.run();
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p.cargo("build")
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.env("FOO", "baz")
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.with_stderr("[FINISHED] [..]")
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.run();
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p.cargo("build")
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.with_stderr(
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"\
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[COMPILING] foo v0.0.1 ([..])
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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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#[cargo_test]
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fn rerun_if_env_or_file_changes() {
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let p = project()
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.file("src/main.rs", "fn main() {}")
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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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println!("cargo:rerun-if-env-changed=FOO");
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println!("cargo:rerun-if-changed=foo");
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}
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"#,
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)
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.file("foo", "")
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.build();
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p.cargo("build")
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.with_stderr(
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"\
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[COMPILING] foo v0.0.1 ([..])
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[FINISHED] [..]
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",
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)
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.run();
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p.cargo("build")
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.env("FOO", "bar")
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.with_stderr(
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"\
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[COMPILING] foo v0.0.1 ([..])
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[FINISHED] [..]
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",
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)
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.run();
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p.cargo("build")
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.env("FOO", "bar")
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.with_stderr("[FINISHED] [..]")
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.run();
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sleep_ms(1000);
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p.change_file("foo", "");
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p.cargo("build")
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.env("FOO", "bar")
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.with_stderr(
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"\
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[COMPILING] foo v0.0.1 ([..])
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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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#[cargo_test]
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fn rustc_bootstrap() {
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let build_rs = r#"
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fn main() {
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println!("cargo:rustc-env=RUSTC_BOOTSTRAP=1");
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}
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"#;
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let p = project()
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.file("Cargo.toml", &basic_manifest("has-dashes", "0.0.1"))
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.file("src/lib.rs", "#![feature(rustc_attrs)]")
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.file("build.rs", build_rs)
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.build();
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// RUSTC_BOOTSTRAP unset on stable should error
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p.cargo("build")
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.with_stderr_contains("error: Cannot set `RUSTC_BOOTSTRAP=1` [..]")
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.with_stderr_contains(
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"help: [..] set the environment variable `RUSTC_BOOTSTRAP=has_dashes` [..]",
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)
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.with_status(101)
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.run();
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// nightly should warn whether or not RUSTC_BOOTSTRAP is set
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p.cargo("build")
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.masquerade_as_nightly_cargo()
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// NOTE: uses RUSTC_BOOTSTRAP so it will be propagated to rustc
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// (this matters when tests are being run with a beta or stable cargo)
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.env("RUSTC_BOOTSTRAP", "1")
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.with_stderr_contains("warning: Cannot set `RUSTC_BOOTSTRAP=1` [..]")
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.run();
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// RUSTC_BOOTSTRAP set to the name of the library should warn
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p.cargo("build")
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.env("RUSTC_BOOTSTRAP", "has_dashes")
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.with_stderr_contains("warning: Cannot set `RUSTC_BOOTSTRAP=1` [..]")
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.run();
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// RUSTC_BOOTSTRAP set to some random value should error
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p.cargo("build")
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.env("RUSTC_BOOTSTRAP", "bar")
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.with_stderr_contains("error: Cannot set `RUSTC_BOOTSTRAP=1` [..]")
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.with_stderr_contains(
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"help: [..] set the environment variable `RUSTC_BOOTSTRAP=has_dashes` [..]",
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)
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.with_status(101)
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.run();
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// Tests for binaries instead of libraries
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let p = project()
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.file("Cargo.toml", &basic_manifest("foo", "0.0.1"))
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.file("src/main.rs", "#![feature(rustc_attrs)] fn main() {}")
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.file("build.rs", build_rs)
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.build();
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// nightly should warn when there's no library whether or not RUSTC_BOOTSTRAP is set
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p.cargo("build")
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.masquerade_as_nightly_cargo()
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// NOTE: uses RUSTC_BOOTSTRAP so it will be propagated to rustc
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// (this matters when tests are being run with a beta or stable cargo)
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.env("RUSTC_BOOTSTRAP", "1")
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.with_stderr_contains("warning: Cannot set `RUSTC_BOOTSTRAP=1` [..]")
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.run();
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// RUSTC_BOOTSTRAP conditionally set when there's no library should error (regardless of the value)
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p.cargo("build")
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.env("RUSTC_BOOTSTRAP", "foo")
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.with_stderr_contains("error: Cannot set `RUSTC_BOOTSTRAP=1` [..]")
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.with_stderr_contains("help: [..] set the environment variable `RUSTC_BOOTSTRAP=1` [..]")
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.with_status(101)
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.run();
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}
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