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cargo/tests/build-script.rs
Alex Crichton f0c0a6aaee Fix renaming a project using build scripts 
This commit fixes an issue in Cargo where if a project's folder was
renamed but it also contained a build script the project could break.
Cargo would continue to use the previous `rustc-link-search` arguments
to configure env vars like `LD_LIBRARY_PATH` but the literal values from
the previous compilation would be stale as the directories would no
longer be there.

To fix this when parsing the build script output we now retain a log of
the previous output directory of a build script invocation as well as
the current output, tweaking paths as appropriate if they were contained
in the output folder.

Closes #4053
2017-12-18 11:30:09 -08:00

2902 lines
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extern crate cargotest;
extern crate hamcrest;
use std::env;
use std::fs::{self, File};
use std::io::prelude::*;
use std::path::PathBuf;
use cargotest::{rustc_host, sleep_ms};
use cargotest::support::{project, execs};
use cargotest::support::paths::CargoPathExt;
use cargotest::support::registry::Package;
use hamcrest::{assert_that, existing_file, existing_dir};
#[test]
fn custom_build_script_failed() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = ["wycats@example.com"]
build = "build.rs"
"#)
.file("src/main.rs", r#"
fn main() {}
"#)
.file("build.rs", r#"
fn main() {
std::process::exit(101);
}
"#)
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(101)
.with_stderr(&format!("\
[COMPILING] foo v0.5.0 ({url})
[RUNNING] `rustc --crate-name build_script_build build.rs --crate-type bin [..]`
[RUNNING] `[..][/]build-script-build`
[ERROR] failed to run custom build command for `foo v0.5.0 ({url})`
process didn't exit successfully: `[..][/]build-script-build` (exit code: 101)",
url = p.url())));
}
#[test]
fn custom_build_env_vars() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = ["wycats@example.com"]
[features]
bar_feat = ["bar/foo"]
[dependencies.bar]
path = "bar"
"#)
.file("src/main.rs", r#"
fn main() {}
"#)
.file("bar/Cargo.toml", r#"
[project]
name = "bar"
version = "0.5.0"
authors = ["wycats@example.com"]
build = "build.rs"
[features]
foo = []
"#)
.file("bar/src/lib.rs", r#"
pub fn hello() {}
"#);
let file_content = format!(r#"
use std::env;
use std::io::prelude::*;
use std::path::Path;
use std::fs;
fn main() {{
let _target = env::var("TARGET").unwrap();
let _ncpus = env::var("NUM_JOBS").unwrap();
let _dir = env::var("CARGO_MANIFEST_DIR").unwrap();
let opt = env::var("OPT_LEVEL").unwrap();
assert_eq!(opt, "0");
let opt = env::var("PROFILE").unwrap();
assert_eq!(opt, "debug");
let debug = env::var("DEBUG").unwrap();
assert_eq!(debug, "true");
let out = env::var("OUT_DIR").unwrap();
assert!(out.starts_with(r"{0}"));
assert!(fs::metadata(&out).map(|m| m.is_dir()).unwrap_or(false));
let _host = env::var("HOST").unwrap();
let _feat = env::var("CARGO_FEATURE_FOO").unwrap();
let _cargo = env::var("CARGO").unwrap();
let rustc = env::var("RUSTC").unwrap();
assert_eq!(rustc, "rustc");
let rustdoc = env::var("RUSTDOC").unwrap();
assert_eq!(rustdoc, "rustdoc");
}}
"#,
p.root().join("target").join("debug").join("build").display());
let p = p.file("bar/build.rs", &file_content).build();
assert_that(p.cargo("build").arg("--features").arg("bar_feat"),
execs().with_status(0));
}
#[test]
fn custom_build_script_wrong_rustc_flags() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = ["wycats@example.com"]
build = "build.rs"
"#)
.file("src/main.rs", r#"
fn main() {}
"#)
.file("build.rs", r#"
fn main() {
println!("cargo:rustc-flags=-aaa -bbb");
}
"#)
.build();
assert_that(p.cargo("build"),
execs().with_status(101)
.with_stderr_contains(&format!("\
[ERROR] Only `-l` and `-L` flags are allowed in build script of `foo v0.5.0 ({})`: \
`-aaa -bbb`",
p.url())));
}
/*
#[test]
fn custom_build_script_rustc_flags() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "bar"
version = "0.5.0"
authors = ["wycats@example.com"]
[dependencies.foo]
path = "foo"
"#)
.file("src/main.rs", r#"
fn main() {}
"#)
.file("foo/Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = ["wycats@example.com"]
build = "build.rs"
"#)
.file("foo/src/lib.rs", r#"
"#)
.file("foo/build.rs", r#"
fn main() {
println!("cargo:rustc-flags=-l nonexistinglib -L /dummy/path1 -L /dummy/path2");
}
"#)
.build();
// TODO: TEST FAILS BECAUSE OF WRONG STDOUT (but otherwise, the build works)
assert_that(p.cargo("build").arg("--verbose"),
execs().with_status(101)
.with_stderr(&format!("\
[COMPILING] bar v0.5.0 ({url})
[RUNNING] `rustc --crate-name test {dir}{sep}src{sep}lib.rs --crate-type lib -C debuginfo=2 \
-C metadata=[..] \
-C extra-filename=-[..] \
--out-dir {dir}{sep}target \
--emit=dep-info,link \
-L {dir}{sep}target \
-L {dir}{sep}target{sep}deps`
", sep = path::SEP,
dir = p.root().display(),
url = p.url(),
)));
}
*/
#[test]
fn links_no_build_cmd() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
links = "a"
"#)
.file("src/lib.rs", "")
.build();
assert_that(p.cargo("build"),
execs().with_status(101)
.with_stderr("\
[ERROR] package `foo v0.5.0 (file://[..])` specifies that it links to `a` but does \
not have a custom build script
"));
}
#[test]
fn links_duplicates() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
links = "a"
build = "build.rs"
[dependencies.a-sys]
path = "a-sys"
"#)
.file("src/lib.rs", "")
.file("build.rs", "")
.file("a-sys/Cargo.toml", r#"
[project]
name = "a-sys"
version = "0.5.0"
authors = []
links = "a"
build = "build.rs"
"#)
.file("a-sys/src/lib.rs", "")
.file("a-sys/build.rs", "")
.build();
assert_that(p.cargo("build"),
execs().with_status(101)
.with_stderr("\
[ERROR] multiple packages link to native library `a`, but a native library can \
be linked only once
package `foo v0.5.0 ([..])`
links to native library `a`
package `a-sys v0.5.0 ([..])`
... which is depended on by `foo v0.5.0 ([..])`
also links to native library `a`
"));
}
#[test]
fn links_duplicates_deep_dependency() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
links = "a"
build = "build.rs"
[dependencies.a]
path = "a"
"#)
.file("src/lib.rs", "")
.file("build.rs", "")
.file("a/Cargo.toml", r#"
[project]
name = "a"
version = "0.5.0"
authors = []
build = "build.rs"
[dependencies.a-sys]
path = "a-sys"
"#)
.file("a/src/lib.rs", "")
.file("a/build.rs", "")
.file("a/a-sys/Cargo.toml", r#"
[project]
name = "a-sys"
version = "0.5.0"
authors = []
links = "a"
build = "build.rs"
"#)
.file("a/a-sys/src/lib.rs", "")
.file("a/a-sys/build.rs", "")
.build();
assert_that(p.cargo("build"),
execs().with_status(101)
.with_stderr("\
[ERROR] multiple packages link to native library `a`, but a native library can \
be linked only once
package `foo v0.5.0 ([..])`
links to native library `a`
package `a-sys v0.5.0 ([..])`
... which is depended on by `a v0.5.0 ([..])`
... which is depended on by `foo v0.5.0 ([..])`
also links to native library `a`
"));
}
#[test]
fn overrides_and_links() {
let target = rustc_host();
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
[dependencies.a]
path = "a"
"#)
.file("src/lib.rs", "")
.file("build.rs", r#"
use std::env;
fn main() {
assert_eq!(env::var("DEP_FOO_FOO").ok().expect("FOO missing"),
"bar");
assert_eq!(env::var("DEP_FOO_BAR").ok().expect("BAR missing"),
"baz");
}
"#)
.file(".cargo/config", &format!(r#"
[target.{}.foo]
rustc-flags = "-L foo -L bar"
foo = "bar"
bar = "baz"
"#, target))
.file("a/Cargo.toml", r#"
[project]
name = "a"
version = "0.5.0"
authors = []
links = "foo"
build = "build.rs"
"#)
.file("a/src/lib.rs", "")
.file("a/build.rs", "not valid rust code")
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0)
.with_stderr("\
[..]
[..]
[..]
[..]
[..]
[RUNNING] `rustc --crate-name foo [..] -L foo -L bar`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
}
#[test]
fn unused_overrides() {
let target = rustc_host();
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#)
.file("src/lib.rs", "")
.file("build.rs", "fn main() {}")
.file(".cargo/config", &format!(r#"
[target.{}.foo]
rustc-flags = "-L foo -L bar"
foo = "bar"
bar = "baz"
"#, target))
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0));
}
#[test]
fn links_passes_env_vars() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
[dependencies.a]
path = "a"
"#)
.file("src/lib.rs", "")
.file("build.rs", r#"
use std::env;
fn main() {
assert_eq!(env::var("DEP_FOO_FOO").unwrap(), "bar");
assert_eq!(env::var("DEP_FOO_BAR").unwrap(), "baz");
}
"#)
.file("a/Cargo.toml", r#"
[project]
name = "a"
version = "0.5.0"
authors = []
links = "foo"
build = "build.rs"
"#)
.file("a/src/lib.rs", "")
.file("a/build.rs", r#"
use std::env;
fn main() {
let lib = env::var("CARGO_MANIFEST_LINKS").unwrap();
assert_eq!(lib, "foo");
println!("cargo:foo=bar");
println!("cargo:bar=baz");
}
"#)
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0));
}
#[test]
fn only_rerun_build_script() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#)
.file("src/lib.rs", "")
.file("build.rs", r#"
fn main() {}
"#)
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0));
p.root().move_into_the_past();
File::create(&p.root().join("some-new-file")).unwrap();
p.root().move_into_the_past();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0)
.with_stderr("\
[COMPILING] foo v0.5.0 (file://[..])
[RUNNING] `[..][/]build-script-build`
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
}
#[test]
fn rebuild_continues_to_pass_env_vars() {
let a = project("a")
.file("Cargo.toml", r#"
[project]
name = "a"
version = "0.5.0"
authors = []
links = "foo"
build = "build.rs"
"#)
.file("src/lib.rs", "")
.file("build.rs", r#"
use std::time::Duration;
fn main() {
println!("cargo:foo=bar");
println!("cargo:bar=baz");
std::thread::sleep(Duration::from_millis(500));
}
"#)
.build();
a.root().move_into_the_past();
let p = project("foo")
.file("Cargo.toml", &format!(r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
[dependencies.a]
path = '{}'
"#, a.root().display()))
.file("src/lib.rs", "")
.file("build.rs", r#"
use std::env;
fn main() {
assert_eq!(env::var("DEP_FOO_FOO").unwrap(), "bar");
assert_eq!(env::var("DEP_FOO_BAR").unwrap(), "baz");
}
"#)
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0));
p.root().move_into_the_past();
File::create(&p.root().join("some-new-file")).unwrap();
p.root().move_into_the_past();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0));
}
#[test]
fn testing_and_such() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#)
.file("src/lib.rs", "")
.file("build.rs", r#"
fn main() {}
"#)
.build();
println!("build");
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0));
p.root().move_into_the_past();
File::create(&p.root().join("src/lib.rs")).unwrap();
p.root().move_into_the_past();
println!("test");
assert_that(p.cargo("test").arg("-vj1"),
execs().with_status(0)
.with_stderr("\
[COMPILING] foo v0.5.0 (file://[..])
[RUNNING] `[..][/]build-script-build`
[RUNNING] `rustc --crate-name foo [..]`
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
[RUNNING] `[..][/]foo-[..][EXE]`
[DOCTEST] foo
[RUNNING] `rustdoc --test [..]`")
.with_stdout_contains_n("running 0 tests", 2));
println!("doc");
assert_that(p.cargo("doc").arg("-v"),
execs().with_status(0)
.with_stderr("\
[DOCUMENTING] foo v0.5.0 (file://[..])
[RUNNING] `rustdoc [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
File::create(&p.root().join("src/main.rs")).unwrap()
.write_all(b"fn main() {}").unwrap();
println!("run");
assert_that(p.cargo("run"),
execs().with_status(0)
.with_stderr("\
[COMPILING] foo v0.5.0 (file://[..])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
[RUNNING] `target[/]debug[/]foo[EXE]`
"));
}
#[test]
fn propagation_of_l_flags() {
let target = rustc_host();
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[dependencies.a]
path = "a"
"#)
.file("src/lib.rs", "")
.file("a/Cargo.toml", r#"
[project]
name = "a"
version = "0.5.0"
authors = []
links = "bar"
build = "build.rs"
[dependencies.b]
path = "../b"
"#)
.file("a/src/lib.rs", "")
.file("a/build.rs", r#"
fn main() {
println!("cargo:rustc-flags=-L bar");
}
"#)
.file("b/Cargo.toml", r#"
[project]
name = "b"
version = "0.5.0"
authors = []
links = "foo"
build = "build.rs"
"#)
.file("b/src/lib.rs", "")
.file("b/build.rs", "bad file")
.file(".cargo/config", &format!(r#"
[target.{}.foo]
rustc-flags = "-L foo"
"#, target))
.build();
assert_that(p.cargo("build").arg("-v").arg("-j1"),
execs().with_status(0)
.with_stderr_contains("\
[RUNNING] `rustc --crate-name a [..] -L bar[..]-L foo[..]`
[COMPILING] foo v0.5.0 (file://[..])
[RUNNING] `rustc --crate-name foo [..] -L bar -L foo`
"));
}
#[test]
fn propagation_of_l_flags_new() {
let target = rustc_host();
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[dependencies.a]
path = "a"
"#)
.file("src/lib.rs", "")
.file("a/Cargo.toml", r#"
[project]
name = "a"
version = "0.5.0"
authors = []
links = "bar"
build = "build.rs"
[dependencies.b]
path = "../b"
"#)
.file("a/src/lib.rs", "")
.file("a/build.rs", r#"
fn main() {
println!("cargo:rustc-link-search=bar");
}
"#)
.file("b/Cargo.toml", r#"
[project]
name = "b"
version = "0.5.0"
authors = []
links = "foo"
build = "build.rs"
"#)
.file("b/src/lib.rs", "")
.file("b/build.rs", "bad file")
.file(".cargo/config", &format!(r#"
[target.{}.foo]
rustc-link-search = ["foo"]
"#, target))
.build();
assert_that(p.cargo("build").arg("-v").arg("-j1"),
execs().with_status(0)
.with_stderr_contains("\
[RUNNING] `rustc --crate-name a [..] -L bar[..]-L foo[..]`
[COMPILING] foo v0.5.0 (file://[..])
[RUNNING] `rustc --crate-name foo [..] -L bar -L foo`
"));
}
#[test]
fn build_deps_simple() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
[build-dependencies.a]
path = "a"
"#)
.file("src/lib.rs", "")
.file("build.rs", "
#[allow(unused_extern_crates)]
extern crate a;
fn main() {}
")
.file("a/Cargo.toml", r#"
[project]
name = "a"
version = "0.5.0"
authors = []
"#)
.file("a/src/lib.rs", "")
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0)
.with_stderr("\
[COMPILING] a v0.5.0 (file://[..])
[RUNNING] `rustc --crate-name a [..]`
[COMPILING] foo v0.5.0 (file://[..])
[RUNNING] `rustc [..] build.rs [..] --extern a=[..]`
[RUNNING] `[..][/]foo-[..][/]build-script-build`
[RUNNING] `rustc --crate-name foo [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
}
#[test]
fn build_deps_not_for_normal() {
let target = rustc_host();
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
[build-dependencies.aaaaa]
path = "a"
"#)
.file("src/lib.rs", "#[allow(unused_extern_crates)] extern crate aaaaa;")
.file("build.rs", "
#[allow(unused_extern_crates)]
extern crate aaaaa;
fn main() {}
")
.file("a/Cargo.toml", r#"
[project]
name = "aaaaa"
version = "0.5.0"
authors = []
"#)
.file("a/src/lib.rs", "")
.build();
assert_that(p.cargo("build").arg("-v").arg("--target").arg(&target),
execs().with_status(101)
.with_stderr_contains("\
[..]can't find crate for `aaaaa`[..]
")
.with_stderr_contains("\
[ERROR] Could not compile `foo`.
Caused by:
process didn't exit successfully: [..]
"));
}
#[test]
fn build_cmd_with_a_build_cmd() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
[build-dependencies.a]
path = "a"
"#)
.file("src/lib.rs", "")
.file("build.rs", "
#[allow(unused_extern_crates)]
extern crate a;
fn main() {}
")
.file("a/Cargo.toml", r#"
[project]
name = "a"
version = "0.5.0"
authors = []
build = "build.rs"
[build-dependencies.b]
path = "../b"
"#)
.file("a/src/lib.rs", "")
.file("a/build.rs", "#[allow(unused_extern_crates)] extern crate b; fn main() {}")
.file("b/Cargo.toml", r#"
[project]
name = "b"
version = "0.5.0"
authors = []
"#)
.file("b/src/lib.rs", "")
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0)
.with_stderr("\
[COMPILING] b v0.5.0 (file://[..])
[RUNNING] `rustc --crate-name b [..]`
[COMPILING] a v0.5.0 (file://[..])
[RUNNING] `rustc [..] a[/]build.rs [..] --extern b=[..]`
[RUNNING] `[..][/]a-[..][/]build-script-build`
[RUNNING] `rustc --crate-name a [..]lib.rs --crate-type lib \
--emit=dep-info,link -C debuginfo=2 \
-C metadata=[..] \
--out-dir [..]target[/]debug[/]deps \
-L [..]target[/]debug[/]deps`
[COMPILING] foo v0.5.0 (file://[..])
[RUNNING] `rustc --crate-name build_script_build build.rs --crate-type bin \
--emit=dep-info,link \
-C debuginfo=2 -C metadata=[..] --out-dir [..] \
-L [..]target[/]debug[/]deps \
--extern a=[..]liba[..].rlib`
[RUNNING] `[..][/]foo-[..][/]build-script-build`
[RUNNING] `rustc --crate-name foo [..]lib.rs --crate-type lib \
--emit=dep-info,link -C debuginfo=2 \
-C metadata=[..] \
--out-dir [..] \
-L [..]target[/]debug[/]deps`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
}
#[test]
fn out_dir_is_preserved() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#)
.file("src/lib.rs", "")
.file("build.rs", r#"
use std::env;
use std::fs::File;
use std::path::Path;
fn main() {
let out = env::var("OUT_DIR").unwrap();
File::create(Path::new(&out).join("foo")).unwrap();
}
"#)
.build();
// Make the file
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0));
p.root().move_into_the_past();
// Change to asserting that it's there
File::create(&p.root().join("build.rs")).unwrap().write_all(br#"
use std::env;
use std::old_io::File;
fn main() {
let out = env::var("OUT_DIR").unwrap();
File::open(&Path::new(&out).join("foo")).unwrap();
}
"#).unwrap();
p.root().move_into_the_past();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0));
// Run a fresh build where file should be preserved
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0));
// One last time to make sure it's still there.
File::create(&p.root().join("foo")).unwrap();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0));
}
#[test]
fn output_separate_lines() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#)
.file("src/lib.rs", "")
.file("build.rs", r#"
fn main() {
println!("cargo:rustc-flags=-L foo");
println!("cargo:rustc-flags=-l static=foo");
}
"#)
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(101)
.with_stderr_contains("\
[COMPILING] foo v0.5.0 (file://[..])
[RUNNING] `rustc [..] build.rs [..]`
[RUNNING] `[..][/]foo-[..][/]build-script-build`
[RUNNING] `rustc --crate-name foo [..] -L foo -l static=foo`
[ERROR] could not find native static library [..]
"));
}
#[test]
fn output_separate_lines_new() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#)
.file("src/lib.rs", "")
.file("build.rs", r#"
fn main() {
println!("cargo:rustc-link-search=foo");
println!("cargo:rustc-link-lib=static=foo");
}
"#)
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(101)
.with_stderr_contains("\
[COMPILING] foo v0.5.0 (file://[..])
[RUNNING] `rustc [..] build.rs [..]`
[RUNNING] `[..][/]foo-[..][/]build-script-build`
[RUNNING] `rustc --crate-name foo [..] -L foo -l static=foo`
[ERROR] could not find native static library [..]
"));
}
#[cfg(not(windows))] // FIXME(#867)
#[test]
fn code_generation() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#)
.file("src/main.rs", r#"
include!(concat!(env!("OUT_DIR"), "/hello.rs"));
fn main() {
println!("{}", message());
}
"#)
.file("build.rs", r#"
use std::env;
use std::fs::File;
use std::io::prelude::*;
use std::path::PathBuf;
fn main() {
let dst = PathBuf::from(env::var("OUT_DIR").unwrap());
let mut f = File::create(&dst.join("hello.rs")).unwrap();
f.write_all(b"
pub fn message() -> &'static str {
\"Hello, World!\"
}
").unwrap();
}
"#)
.build();
assert_that(p.cargo("run"),
execs().with_status(0)
.with_stderr("\
[COMPILING] foo v0.5.0 (file://[..])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
[RUNNING] `target[/]debug[/]foo`")
.with_stdout("\
Hello, World!
"));
assert_that(p.cargo("test"),
execs().with_status(0));
}
#[test]
fn release_with_build_script() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#)
.file("src/lib.rs", "")
.file("build.rs", r#"
fn main() {}
"#)
.build();
assert_that(p.cargo("build").arg("-v").arg("--release"),
execs().with_status(0));
}
#[test]
fn build_script_only() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.0.0"
authors = []
build = "build.rs"
"#)
.file("build.rs", r#"fn main() {}"#)
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(101)
.with_stderr("\
[ERROR] failed to parse manifest at `[..]`
Caused by:
no targets specified in the manifest
either src/lib.rs, src/main.rs, a [lib] section, or [[bin]] section must be present"));
}
#[test]
fn shared_dep_with_a_build_script() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
[dependencies.a]
path = "a"
[build-dependencies.b]
path = "b"
"#)
.file("src/lib.rs", "")
.file("build.rs", "fn main() {}")
.file("a/Cargo.toml", r#"
[package]
name = "a"
version = "0.5.0"
authors = []
build = "build.rs"
"#)
.file("a/build.rs", "fn main() {}")
.file("a/src/lib.rs", "")
.file("b/Cargo.toml", r#"
[package]
name = "b"
version = "0.5.0"
authors = []
[dependencies.a]
path = "../a"
"#)
.file("b/src/lib.rs", "")
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0));
}
#[test]
fn transitive_dep_host() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
[build-dependencies.b]
path = "b"
"#)
.file("src/lib.rs", "")
.file("build.rs", "fn main() {}")
.file("a/Cargo.toml", r#"
[package]
name = "a"
version = "0.5.0"
authors = []
links = "foo"
build = "build.rs"
"#)
.file("a/build.rs", "fn main() {}")
.file("a/src/lib.rs", "")
.file("b/Cargo.toml", r#"
[package]
name = "b"
version = "0.5.0"
authors = []
[lib]
name = "b"
plugin = true
[dependencies.a]
path = "../a"
"#)
.file("b/src/lib.rs", "")
.build();
assert_that(p.cargo("build"),
execs().with_status(0));
}
#[test]
fn test_a_lib_with_a_build_command() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#)
.file("src/lib.rs", r#"
include!(concat!(env!("OUT_DIR"), "/foo.rs"));
/// ```
/// foo::bar();
/// ```
pub fn bar() {
assert_eq!(foo(), 1);
}
"#)
.file("build.rs", r#"
use std::env;
use std::io::prelude::*;
use std::fs::File;
use std::path::PathBuf;
fn main() {
let out = PathBuf::from(env::var("OUT_DIR").unwrap());
File::create(out.join("foo.rs")).unwrap().write_all(b"
fn foo() -> i32 { 1 }
").unwrap();
}
"#)
.build();
assert_that(p.cargo("test"),
execs().with_status(0));
}
#[test]
fn test_dev_dep_build_script() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[dev-dependencies.a]
path = "a"
"#)
.file("src/lib.rs", "")
.file("a/Cargo.toml", r#"
[project]
name = "a"
version = "0.5.0"
authors = []
build = "build.rs"
"#)
.file("a/build.rs", "fn main() {}")
.file("a/src/lib.rs", "")
.build();
assert_that(p.cargo("test"), execs().with_status(0));
}
#[test]
fn build_script_with_dynamic_native_dependency() {
let _workspace = project("ws")
.file("Cargo.toml", r#"
[workspace]
members = ["builder", "foo"]
"#)
.build();
let build = project("ws/builder")
.file("Cargo.toml", r#"
[package]
name = "builder"
version = "0.0.1"
authors = []
[lib]
name = "builder"
crate-type = ["dylib"]
plugin = true
"#)
.file("src/lib.rs", r#"
#[no_mangle]
pub extern fn foo() {}
"#)
.build();
let foo = project("ws/foo")
.file("Cargo.toml", r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
[build-dependencies.bar]
path = "bar"
"#)
.file("build.rs", r#"
extern crate bar;
fn main() { bar::bar() }
"#)
.file("src/lib.rs", "")
.file("bar/Cargo.toml", r#"
[package]
name = "bar"
version = "0.0.1"
authors = []
build = "build.rs"
"#)
.file("bar/build.rs", r#"
use std::env;
use std::path::PathBuf;
fn main() {
let src = PathBuf::from(env::var("SRC").unwrap());
println!("cargo:rustc-link-search=native={}/target/debug/deps",
src.display());
}
"#)
.file("bar/src/lib.rs", r#"
pub fn bar() {
#[cfg_attr(not(target_env = "msvc"), link(name = "builder"))]
#[cfg_attr(target_env = "msvc", link(name = "builder.dll"))]
extern { fn foo(); }
unsafe { foo() }
}
"#)
.build();
assert_that(build.cargo("build").arg("-v")
.env("RUST_LOG", "cargo::ops::cargo_rustc"),
execs().with_status(0));
assert_that(foo.cargo("build").arg("-v").env("SRC", build.root())
.env("RUST_LOG", "cargo::ops::cargo_rustc"),
execs().with_status(0));
}
#[test]
fn profile_and_opt_level_set_correctly() {
let build = project("builder")
.file("Cargo.toml", r#"
[package]
name = "builder"
version = "0.0.1"
authors = []
build = "build.rs"
"#)
.file("src/lib.rs", "")
.file("build.rs", r#"
use std::env;
fn main() {
assert_eq!(env::var("OPT_LEVEL").unwrap(), "3");
assert_eq!(env::var("PROFILE").unwrap(), "release");
assert_eq!(env::var("DEBUG").unwrap(), "false");
}
"#)
.build();
assert_that(build.cargo("bench"),
execs().with_status(0));
}
#[test]
fn build_script_with_lto() {
let build = project("builder")
.file("Cargo.toml", r#"
[package]
name = "builder"
version = "0.0.1"
authors = []
build = "build.rs"
[profile.dev]
lto = true
"#)
.file("src/lib.rs", "")
.file("build.rs", r#"
fn main() {
}
"#)
.build();
assert_that(build.cargo("build"),
execs().with_status(0));
}
#[test]
fn test_duplicate_deps() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.1.0"
authors = []
build = "build.rs"
[dependencies.bar]
path = "bar"
[build-dependencies.bar]
path = "bar"
"#)
.file("src/main.rs", r#"
extern crate bar;
fn main() { bar::do_nothing() }
"#)
.file("build.rs", r#"
extern crate bar;
fn main() { bar::do_nothing() }
"#)
.file("bar/Cargo.toml", r#"
[project]
name = "bar"
version = "0.1.0"
authors = []
"#)
.file("bar/src/lib.rs", "pub fn do_nothing() {}")
.build();
assert_that(p.cargo("build"), execs().with_status(0));
}
#[test]
fn cfg_feedback() {
let build = project("builder")
.file("Cargo.toml", r#"
[package]
name = "builder"
version = "0.0.1"
authors = []
build = "build.rs"
"#)
.file("src/main.rs", "
#[cfg(foo)]
fn main() {}
")
.file("build.rs", r#"
fn main() {
println!("cargo:rustc-cfg=foo");
}
"#)
.build();
assert_that(build.cargo("build").arg("-v"),
execs().with_status(0));
}
#[test]
fn cfg_override() {
let target = rustc_host();
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
links = "a"
build = "build.rs"
"#)
.file("src/main.rs", "
#[cfg(foo)]
fn main() {}
")
.file("build.rs", "")
.file(".cargo/config", &format!(r#"
[target.{}.a]
rustc-cfg = ["foo"]
"#, target))
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0));
}
#[test]
fn cfg_test() {
let p = project("foo")
.file("Cargo.toml", r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
"#)
.file("build.rs", r#"
fn main() {
println!("cargo:rustc-cfg=foo");
}
"#)
.file("src/lib.rs", r#"
///
/// ```
/// extern crate foo;
///
/// fn main() {
/// foo::foo()
/// }
/// ```
///
#[cfg(foo)]
pub fn foo() {}
#[cfg(foo)]
#[test]
fn test_foo() {
foo()
}
"#)
.file("tests/test.rs", r#"
#[cfg(foo)]
#[test]
fn test_bar() {}
"#)
.build();
assert_that(p.cargo("test").arg("-v"),
execs().with_stderr(format!("\
[COMPILING] foo v0.0.1 ({dir})
[RUNNING] [..] build.rs [..]
[RUNNING] `[..][/]build-script-build`
[RUNNING] [..] --cfg foo[..]
[RUNNING] [..] --cfg foo[..]
[RUNNING] [..] --cfg foo[..]
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
[RUNNING] `[..][/]foo-[..][EXE]`
[RUNNING] `[..][/]test-[..][EXE]`
[DOCTEST] foo
[RUNNING] [..] --cfg foo[..]", dir = p.url()))
.with_stdout_contains("test test_foo ... ok")
.with_stdout_contains("test test_bar ... ok")
.with_stdout_contains_n("test [..] ... ok", 3));
}
#[test]
fn cfg_doc() {
let p = project("foo")
.file("Cargo.toml", r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
[dependencies.bar]
path = "bar"
"#)
.file("build.rs", r#"
fn main() {
println!("cargo:rustc-cfg=foo");
}
"#)
.file("src/lib.rs", r#"
#[cfg(foo)]
pub fn foo() {}
"#)
.file("bar/Cargo.toml", r#"
[package]
name = "bar"
version = "0.0.1"
authors = []
build = "build.rs"
"#)
.file("bar/build.rs", r#"
fn main() {
println!("cargo:rustc-cfg=bar");
}
"#)
.file("bar/src/lib.rs", r#"
#[cfg(bar)]
pub fn bar() {}
"#)
.build();
assert_that(p.cargo("doc"),
execs().with_status(0));
assert_that(&p.root().join("target/doc"), existing_dir());
assert_that(&p.root().join("target/doc/foo/fn.foo.html"), existing_file());
assert_that(&p.root().join("target/doc/bar/fn.bar.html"), existing_file());
}
#[test]
fn cfg_override_test() {
let p = project("foo")
.file("Cargo.toml", r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
links = "a"
"#)
.file("build.rs", "")
.file(".cargo/config", &format!(r#"
[target.{}.a]
rustc-cfg = ["foo"]
"#, rustc_host()))
.file("src/lib.rs", r#"
///
/// ```
/// extern crate foo;
///
/// fn main() {
/// foo::foo()
/// }
/// ```
///
#[cfg(foo)]
pub fn foo() {}
#[cfg(foo)]
#[test]
fn test_foo() {
foo()
}
"#)
.file("tests/test.rs", r#"
#[cfg(foo)]
#[test]
fn test_bar() {}
"#)
.build();
assert_that(p.cargo("test").arg("-v"),
execs().with_stderr(format!("\
[COMPILING] foo v0.0.1 ({dir})
[RUNNING] `[..]`
[RUNNING] `[..]`
[RUNNING] `[..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
[RUNNING] `[..][/]foo-[..][EXE]`
[RUNNING] `[..][/]test-[..][EXE]`
[DOCTEST] foo
[RUNNING] [..] --cfg foo[..]", dir = p.url()))
.with_stdout_contains("test test_foo ... ok")
.with_stdout_contains("test test_bar ... ok")
.with_stdout_contains_n("test [..] ... ok", 3));
}
#[test]
fn cfg_override_doc() {
let p = project("foo")
.file("Cargo.toml", r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
links = "a"
[dependencies.bar]
path = "bar"
"#)
.file(".cargo/config", &format!(r#"
[target.{target}.a]
rustc-cfg = ["foo"]
[target.{target}.b]
rustc-cfg = ["bar"]
"#, target = rustc_host()))
.file("build.rs", "")
.file("src/lib.rs", r#"
#[cfg(foo)]
pub fn foo() {}
"#)
.file("bar/Cargo.toml", r#"
[package]
name = "bar"
version = "0.0.1"
authors = []
build = "build.rs"
links = "b"
"#)
.file("bar/build.rs", "")
.file("bar/src/lib.rs", r#"
#[cfg(bar)]
pub fn bar() {}
"#)
.build();
assert_that(p.cargo("doc"),
execs().with_status(0));
assert_that(&p.root().join("target/doc"), existing_dir());
assert_that(&p.root().join("target/doc/foo/fn.foo.html"), existing_file());
assert_that(&p.root().join("target/doc/bar/fn.bar.html"), existing_file());
}
#[test]
fn env_build() {
let p = project("foo")
.file("Cargo.toml", r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
"#)
.file("src/main.rs", r#"
const FOO: &'static str = env!("FOO");
fn main() {
println!("{}", FOO);
}
"#)
.file("build.rs", r#"
fn main() {
println!("cargo:rustc-env=FOO=foo");
}
"#)
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0));
assert_that(p.cargo("run").arg("-v"),
execs().with_status(0).with_stdout("foo\n"));
}
#[test]
fn env_test() {
let p = project("foo")
.file("Cargo.toml", r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
"#)
.file("build.rs", r#"
fn main() {
println!("cargo:rustc-env=FOO=foo");
}
"#)
.file("src/lib.rs", r#"
pub const FOO: &'static str = env!("FOO");
"#)
.file("tests/test.rs", r#"
extern crate foo;
#[test]
fn test_foo() {
assert_eq!("foo", foo::FOO);
}
"#)
.build();
assert_that(p.cargo("test").arg("-v"),
execs().with_stderr(format!("\
[COMPILING] foo v0.0.1 ({dir})
[RUNNING] [..] build.rs [..]
[RUNNING] `[..][/]build-script-build`
[RUNNING] [..] --crate-name foo[..]
[RUNNING] [..] --crate-name foo[..]
[RUNNING] [..] --crate-name test[..]
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
[RUNNING] `[..][/]foo-[..][EXE]`
[RUNNING] `[..][/]test-[..][EXE]`
[DOCTEST] foo
[RUNNING] [..] --crate-name foo[..]", dir = p.url()))
.with_stdout_contains_n("running 0 tests", 2)
.with_stdout_contains("test test_foo ... ok"));
}
#[test]
fn env_doc() {
let p = project("foo")
.file("Cargo.toml", r#"
[package]
name = "foo"
version = "0.0.1"
authors = []
build = "build.rs"
"#)
.file("src/main.rs", r#"
const FOO: &'static str = env!("FOO");
fn main() {}
"#)
.file("build.rs", r#"
fn main() {
println!("cargo:rustc-env=FOO=foo");
}
"#)
.build();
assert_that(p.cargo("doc").arg("-v"),
execs().with_status(0));
}
#[test]
fn flags_go_into_tests() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[dependencies]
b = { path = "b" }
"#)
.file("src/lib.rs", "")
.file("tests/foo.rs", "")
.file("b/Cargo.toml", r#"
[project]
name = "b"
version = "0.5.0"
authors = []
[dependencies]
a = { path = "../a" }
"#)
.file("b/src/lib.rs", "")
.file("a/Cargo.toml", r#"
[project]
name = "a"
version = "0.5.0"
authors = []
build = "build.rs"
"#)
.file("a/src/lib.rs", "")
.file("a/build.rs", r#"
fn main() {
println!("cargo:rustc-link-search=test");
}
"#)
.build();
assert_that(p.cargo("test").arg("-v").arg("--test=foo"),
execs().with_status(0)
.with_stderr("\
[COMPILING] a v0.5.0 ([..]
[RUNNING] `rustc [..] a[/]build.rs [..]`
[RUNNING] `[..][/]build-script-build`
[RUNNING] `rustc [..] a[/]src[/]lib.rs [..] -L test[..]`
[COMPILING] b v0.5.0 ([..]
[RUNNING] `rustc [..] b[/]src[/]lib.rs [..] -L test[..]`
[COMPILING] foo v0.5.0 ([..]
[RUNNING] `rustc [..] src[/]lib.rs [..] -L test[..]`
[RUNNING] `rustc [..] tests[/]foo.rs [..] -L test[..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
[RUNNING] `[..][/]foo-[..][EXE]`")
.with_stdout_contains("running 0 tests"));
assert_that(p.cargo("test").arg("-v").arg("-pb").arg("--lib"),
execs().with_status(0)
.with_stderr("\
[FRESH] a v0.5.0 ([..]
[COMPILING] b v0.5.0 ([..]
[RUNNING] `rustc [..] b[/]src[/]lib.rs [..] -L test[..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
[RUNNING] `[..][/]b-[..][EXE]`")
.with_stdout_contains("running 0 tests"));
}
#[test]
fn diamond_passes_args_only_once() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[dependencies]
a = { path = "a" }
b = { path = "b" }
"#)
.file("src/lib.rs", "")
.file("tests/foo.rs", "")
.file("a/Cargo.toml", r#"
[project]
name = "a"
version = "0.5.0"
authors = []
[dependencies]
b = { path = "../b" }
c = { path = "../c" }
"#)
.file("a/src/lib.rs", "")
.file("b/Cargo.toml", r#"
[project]
name = "b"
version = "0.5.0"
authors = []
[dependencies]
c = { path = "../c" }
"#)
.file("b/src/lib.rs", "")
.file("c/Cargo.toml", r#"
[project]
name = "c"
version = "0.5.0"
authors = []
build = "build.rs"
"#)
.file("c/build.rs", r#"
fn main() {
println!("cargo:rustc-link-search=native=test");
}
"#)
.file("c/src/lib.rs", "")
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0).with_stderr("\
[COMPILING] c v0.5.0 ([..]
[RUNNING] `rustc [..]`
[RUNNING] `[..]`
[RUNNING] `rustc [..]`
[COMPILING] b v0.5.0 ([..]
[RUNNING] `rustc [..]`
[COMPILING] a v0.5.0 ([..]
[RUNNING] `rustc [..]`
[COMPILING] foo v0.5.0 ([..]
[RUNNING] `[..]rlib -L native=test`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
}
#[test]
fn adding_an_override_invalidates() {
let target = rustc_host();
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
links = "foo"
build = "build.rs"
"#)
.file("src/lib.rs", "")
.file(".cargo/config", "")
.file("build.rs", r#"
fn main() {
println!("cargo:rustc-link-search=native=foo");
}
"#)
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0).with_stderr("\
[COMPILING] foo v0.5.0 ([..]
[RUNNING] `rustc [..]`
[RUNNING] `[..]`
[RUNNING] `rustc [..] -L native=foo`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
File::create(p.root().join(".cargo/config")).unwrap().write_all(format!("
[target.{}.foo]
rustc-link-search = [\"native=bar\"]
", target).as_bytes()).unwrap();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0).with_stderr("\
[COMPILING] foo v0.5.0 ([..]
[RUNNING] `rustc [..] -L native=bar`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
}
#[test]
fn changing_an_override_invalidates() {
let target = rustc_host();
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
links = "foo"
build = "build.rs"
"#)
.file("src/lib.rs", "")
.file(".cargo/config", &format!("
[target.{}.foo]
rustc-link-search = [\"native=foo\"]
", target))
.file("build.rs", "")
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0).with_stderr("\
[COMPILING] foo v0.5.0 ([..]
[RUNNING] `rustc [..] -L native=foo`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
File::create(p.root().join(".cargo/config")).unwrap().write_all(format!("
[target.{}.foo]
rustc-link-search = [\"native=bar\"]
", target).as_bytes()).unwrap();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0).with_stderr("\
[COMPILING] foo v0.5.0 ([..]
[RUNNING] `rustc [..] -L native=bar`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
}
#[test]
fn fresh_builds_possible_with_link_libs() {
// The bug is non-deterministic. Sometimes you can get a fresh build
let target = rustc_host();
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
links = "nativefoo"
build = "build.rs"
"#)
.file("src/lib.rs", "")
.file(".cargo/config", &format!("
[target.{}.nativefoo]
rustc-link-lib = [\"a\"]
rustc-link-search = [\"./b\"]
rustc-flags = \"-l z -L ./\"
", target))
.file("build.rs", "")
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0).with_stderr("\
[COMPILING] foo v0.5.0 ([..]
[RUNNING] `rustc [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
assert_that(p.cargo("build")
.arg("-v")
.env("RUST_LOG", "cargo::ops::cargo_rustc::fingerprint=info"),
execs().with_status(0).with_stderr("\
[FRESH] foo v0.5.0 ([..])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
}
#[test]
fn fresh_builds_possible_with_multiple_metadata_overrides() {
// The bug is non-deterministic. Sometimes you can get a fresh build
let target = rustc_host();
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
links = "foo"
build = "build.rs"
"#)
.file("src/lib.rs", "")
.file(".cargo/config", &format!("
[target.{}.foo]
a = \"\"
b = \"\"
c = \"\"
d = \"\"
e = \"\"
", target))
.file("build.rs", "")
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0).with_stderr("\
[COMPILING] foo v0.5.0 ([..]
[RUNNING] `rustc [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
assert_that(p.cargo("build")
.arg("-v")
.env("RUST_LOG", "cargo::ops::cargo_rustc::fingerprint=info"),
execs().with_status(0).with_stderr("\
[FRESH] foo v0.5.0 ([..])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
}
#[test]
fn rebuild_only_on_explicit_paths() {
let p = project("a")
.file("Cargo.toml", r#"
[project]
name = "a"
version = "0.5.0"
authors = []
build = "build.rs"
"#)
.file("src/lib.rs", "")
.file("build.rs", r#"
fn main() {
println!("cargo:rerun-if-changed=foo");
println!("cargo:rerun-if-changed=bar");
}
"#)
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0));
// files don't exist, so should always rerun if they don't exist
println!("run without");
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0).with_stderr("\
[COMPILING] a v0.5.0 ([..])
[RUNNING] `[..][/]build-script-build`
[RUNNING] `rustc [..] src[/]lib.rs [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
sleep_ms(1000);
File::create(p.root().join("foo")).unwrap();
File::create(p.root().join("bar")).unwrap();
// now the exist, so run once, catch the mtime, then shouldn't run again
println!("run with");
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0).with_stderr("\
[COMPILING] a v0.5.0 ([..])
[RUNNING] `[..][/]build-script-build`
[RUNNING] `rustc [..] src[/]lib.rs [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
println!("run with2");
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0).with_stderr("\
[FRESH] a v0.5.0 ([..])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
sleep_ms(1000);
// random other files do not affect freshness
println!("run baz");
File::create(p.root().join("baz")).unwrap();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0).with_stderr("\
[FRESH] a v0.5.0 ([..])
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
// but changing dependent files does
println!("run foo change");
File::create(p.root().join("foo")).unwrap();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0).with_stderr("\
[COMPILING] a v0.5.0 ([..])
[RUNNING] `[..][/]build-script-build`
[RUNNING] `rustc [..] src[/]lib.rs [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
// .. as does deleting a file
println!("run foo delete");
fs::remove_file(p.root().join("bar")).unwrap();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0).with_stderr("\
[COMPILING] a v0.5.0 ([..])
[RUNNING] `[..][/]build-script-build`
[RUNNING] `rustc [..] src[/]lib.rs [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
}
#[test]
fn doctest_recieves_build_link_args() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[dependencies.a]
path = "a"
"#)
.file("src/lib.rs", "")
.file("a/Cargo.toml", r#"
[project]
name = "a"
version = "0.5.0"
authors = []
links = "bar"
build = "build.rs"
"#)
.file("a/src/lib.rs", "")
.file("a/build.rs", r#"
fn main() {
println!("cargo:rustc-link-search=native=bar");
}
"#)
.build();
assert_that(p.cargo("test").arg("-v"),
execs().with_status(0)
.with_stderr_contains("\
[RUNNING] `rustdoc --test [..] --crate-name foo [..]-L native=bar[..]`
"));
}
#[test]
fn please_respect_the_dag() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
[dependencies]
a = { path = 'a' }
"#)
.file("src/lib.rs", "")
.file("build.rs", r#"
fn main() {
println!("cargo:rustc-link-search=native=foo");
}
"#)
.file("a/Cargo.toml", r#"
[project]
name = "a"
version = "0.5.0"
authors = []
links = "bar"
build = "build.rs"
"#)
.file("a/src/lib.rs", "")
.file("a/build.rs", r#"
fn main() {
println!("cargo:rustc-link-search=native=bar");
}
"#)
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0)
.with_stderr_contains("\
[RUNNING] `rustc [..] -L native=foo -L native=bar[..]`
"));
}
#[test]
fn non_utf8_output() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#)
.file("build.rs", r#"
use std::io::prelude::*;
fn main() {
let mut out = std::io::stdout();
// print something that's not utf8
out.write_all(b"\xff\xff\n").unwrap();
// now print some cargo metadata that's utf8
println!("cargo:rustc-cfg=foo");
// now print more non-utf8
out.write_all(b"\xff\xff\n").unwrap();
}
"#)
.file("src/main.rs", r#"
#[cfg(foo)]
fn main() {}
"#)
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0));
}
#[test]
fn custom_target_dir() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[dependencies]
a = { path = "a" }
"#)
.file("src/lib.rs", "")
.file(".cargo/config", r#"
[build]
target-dir = 'test'
"#)
.file("a/Cargo.toml", r#"
[project]
name = "a"
version = "0.5.0"
authors = []
build = "build.rs"
"#)
.file("a/build.rs", "fn main() {}")
.file("a/src/lib.rs", "")
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0));
}
#[test]
fn panic_abort_with_build_scripts() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[profile.release]
panic = 'abort'
[dependencies]
a = { path = "a" }
"#)
.file("src/lib.rs", "#[allow(unused_extern_crates)] extern crate a;")
.file("a/Cargo.toml", r#"
[project]
name = "a"
version = "0.5.0"
authors = []
build = "build.rs"
[build-dependencies]
b = { path = "../b" }
"#)
.file("a/src/lib.rs", "")
.file("a/build.rs", "#[allow(unused_extern_crates)] extern crate b; fn main() {}")
.file("b/Cargo.toml", r#"
[project]
name = "b"
version = "0.5.0"
authors = []
"#)
.file("b/src/lib.rs", "")
.build();
assert_that(p.cargo("build").arg("-v").arg("--release"),
execs().with_status(0));
}
#[test]
fn warnings_emitted() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#)
.file("src/lib.rs", "")
.file("build.rs", r#"
fn main() {
println!("cargo:warning=foo");
println!("cargo:warning=bar");
}
"#)
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0)
.with_stderr("\
[COMPILING] foo v0.5.0 ([..])
[RUNNING] `rustc [..]`
[RUNNING] `[..]`
warning: foo
warning: bar
[RUNNING] `rustc [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
}
#[test]
fn warnings_hidden_for_upstream() {
Package::new("bar", "0.1.0")
.file("build.rs", r#"
fn main() {
println!("cargo:warning=foo");
println!("cargo:warning=bar");
}
"#)
.file("Cargo.toml", r#"
[project]
name = "bar"
version = "0.1.0"
authors = []
build = "build.rs"
"#)
.file("src/lib.rs", "")
.publish();
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[dependencies]
bar = "*"
"#)
.file("src/lib.rs", "")
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0)
.with_stderr("\
[UPDATING] registry `[..]`
[DOWNLOADING] bar v0.1.0 ([..])
[COMPILING] bar v0.1.0
[RUNNING] `rustc [..]`
[RUNNING] `[..]`
[RUNNING] `rustc [..]`
[COMPILING] foo v0.5.0 ([..])
[RUNNING] `rustc [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
}
#[test]
fn warnings_printed_on_vv() {
Package::new("bar", "0.1.0")
.file("build.rs", r#"
fn main() {
println!("cargo:warning=foo");
println!("cargo:warning=bar");
}
"#)
.file("Cargo.toml", r#"
[project]
name = "bar"
version = "0.1.0"
authors = []
build = "build.rs"
"#)
.file("src/lib.rs", "")
.publish();
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[dependencies]
bar = "*"
"#)
.file("src/lib.rs", "")
.build();
assert_that(p.cargo("build").arg("-vv"),
execs().with_status(0)
.with_stderr("\
[UPDATING] registry `[..]`
[DOWNLOADING] bar v0.1.0 ([..])
[COMPILING] bar v0.1.0
[RUNNING] `rustc [..]`
[RUNNING] `[..]`
warning: foo
warning: bar
[RUNNING] `rustc [..]`
[COMPILING] foo v0.5.0 ([..])
[RUNNING] `rustc [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
}
#[test]
fn output_shows_on_vv() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
"#)
.file("src/lib.rs", "")
.file("build.rs", r#"
use std::io::prelude::*;
fn main() {
std::io::stderr().write_all(b"stderr\n").unwrap();
std::io::stdout().write_all(b"stdout\n").unwrap();
}
"#)
.build();
assert_that(p.cargo("build").arg("-vv"),
execs().with_status(0)
.with_stdout("\
stdout
")
.with_stderr("\
[COMPILING] foo v0.5.0 ([..])
[RUNNING] `rustc [..]`
[RUNNING] `[..]`
stderr
[RUNNING] `rustc [..]`
[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
"));
}
#[test]
fn links_with_dots() {
let target = rustc_host();
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
build = "build.rs"
links = "a.b"
"#)
.file("src/lib.rs", "")
.file("build.rs", r#"
fn main() {
println!("cargo:rustc-link-search=bar")
}
"#)
.file(".cargo/config", &format!(r#"
[target.{}.'a.b']
rustc-link-search = ["foo"]
"#, target))
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0)
.with_stderr_contains("\
[RUNNING] `rustc --crate-name foo [..] [..] -L foo[..]`
"));
}
#[test]
fn rustc_and_rustdoc_set_correctly() {
let p = project("builder")
.file("Cargo.toml", r#"
[package]
name = "builder"
version = "0.0.1"
authors = []
build = "build.rs"
"#)
.file("src/lib.rs", "")
.file("build.rs", r#"
use std::env;
fn main() {
assert_eq!(env::var("RUSTC").unwrap(), "rustc");
assert_eq!(env::var("RUSTDOC").unwrap(), "rustdoc");
}
"#)
.build();
assert_that(p.cargo("bench"),
execs().with_status(0));
}
#[test]
fn cfg_env_vars_available() {
let p = project("builder")
.file("Cargo.toml", r#"
[package]
name = "builder"
version = "0.0.1"
authors = []
build = "build.rs"
"#)
.file("src/lib.rs", "")
.file("build.rs", r#"
use std::env;
fn main() {
let fam = env::var("CARGO_CFG_TARGET_FAMILY").unwrap();
if cfg!(unix) {
assert_eq!(fam, "unix");
} else {
assert_eq!(fam, "windows");
}
}
"#)
.build();
assert_that(p.cargo("bench"),
execs().with_status(0));
}
#[test]
fn switch_features_rerun() {
let p = project("builder")
.file("Cargo.toml", r#"
[package]
name = "builder"
version = "0.0.1"
authors = []
build = "build.rs"
[features]
foo = []
"#)
.file("src/main.rs", r#"
fn main() {
println!(include_str!(concat!(env!("OUT_DIR"), "/output")));
}
"#)
.file("build.rs", r#"
use std::env;
use std::fs::File;
use std::io::Write;
use std::path::Path;
fn main() {
let out_dir = env::var_os("OUT_DIR").unwrap();
let out_dir = Path::new(&out_dir).join("output");
let mut f = File::create(&out_dir).unwrap();
if env::var_os("CARGO_FEATURE_FOO").is_some() {
f.write_all(b"foo").unwrap();
} else {
f.write_all(b"bar").unwrap();
}
}
"#)
.build();
assert_that(p.cargo("run").arg("-v").arg("--features=foo"),
execs().with_status(0).with_stdout("foo\n"));
assert_that(p.cargo("run").arg("-v"),
execs().with_status(0).with_stdout("bar\n"));
assert_that(p.cargo("run").arg("-v").arg("--features=foo"),
execs().with_status(0).with_stdout("foo\n"));
}
#[test]
fn assume_build_script_when_build_rs_present() {
let p = project("builder")
.file("Cargo.toml", r#"
[package]
name = "builder"
version = "0.0.1"
authors = []
"#)
.file("src/main.rs", r#"
fn main() {
if ! cfg!(foo) {
panic!("the build script was not run");
}
}
"#)
.file("build.rs", r#"
fn main() {
println!("cargo:rustc-cfg=foo");
}
"#)
.build();
assert_that(p.cargo("run").arg("-v"),
execs().with_status(0));
}
#[test]
fn if_build_set_to_false_dont_treat_build_rs_as_build_script() {
let p = project("builder")
.file("Cargo.toml", r#"
[package]
name = "builder"
version = "0.0.1"
authors = []
build = false
"#)
.file("src/main.rs", r#"
fn main() {
if cfg!(foo) {
panic!("the build script was run");
}
}
"#)
.file("build.rs", r#"
fn main() {
println!("cargo:rustc-cfg=foo");
}
"#)
.build();
assert_that(p.cargo("run").arg("-v"),
execs().with_status(0));
}
#[test]
fn deterministic_rustc_dependency_flags() {
// This bug is non-deterministic hence the large number of dependencies
// in the hopes it will have a much higher chance of triggering it.
Package::new("dep1", "0.1.0")
.file("Cargo.toml", r#"
[project]
name = "dep1"
version = "0.1.0"
authors = []
build = "build.rs"
"#)
.file("build.rs", r#"
fn main() {
println!("cargo:rustc-flags=-L native=test1");
}
"#)
.file("src/lib.rs", "")
.publish();
Package::new("dep2", "0.1.0")
.file("Cargo.toml", r#"
[project]
name = "dep2"
version = "0.1.0"
authors = []
build = "build.rs"
"#)
.file("build.rs", r#"
fn main() {
println!("cargo:rustc-flags=-L native=test2");
}
"#)
.file("src/lib.rs", "")
.publish();
Package::new("dep3", "0.1.0")
.file("Cargo.toml", r#"
[project]
name = "dep3"
version = "0.1.0"
authors = []
build = "build.rs"
"#)
.file("build.rs", r#"
fn main() {
println!("cargo:rustc-flags=-L native=test3");
}
"#)
.file("src/lib.rs", "")
.publish();
Package::new("dep4", "0.1.0")
.file("Cargo.toml", r#"
[project]
name = "dep4"
version = "0.1.0"
authors = []
build = "build.rs"
"#)
.file("build.rs", r#"
fn main() {
println!("cargo:rustc-flags=-L native=test4");
}
"#)
.file("src/lib.rs", "")
.publish();
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.1.0"
authors = []
[dependencies]
dep1 = "*"
dep2 = "*"
dep3 = "*"
dep4 = "*"
"#)
.file("src/main.rs", r#"
fn main() {}
"#)
.build();
assert_that(p.cargo("build").arg("-v"),
execs().with_status(0)
.with_stderr_contains("\
[RUNNING] `rustc --crate-name foo [..] -L native=test1 -L native=test2 \
-L native=test3 -L native=test4`
"));
}
#[test]
fn links_duplicates_with_cycle() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
links = "a"
build = "build.rs"
[dependencies.a]
path = "a"
[dev-dependencies]
b = { path = "b" }
"#)
.file("src/lib.rs", "")
.file("build.rs", "")
.file("a/Cargo.toml", r#"
[project]
name = "a"
version = "0.5.0"
authors = []
links = "a"
build = "build.rs"
"#)
.file("a/src/lib.rs", "")
.file("a/build.rs", "")
.file("b/Cargo.toml", r#"
[project]
name = "b"
version = "0.5.0"
authors = []
[dependencies]
foo = { path = ".." }
"#)
.file("b/src/lib.rs", "")
.build();
assert_that(p.cargo("build"),
execs().with_status(101)
.with_stderr("\
[ERROR] multiple packages link to native library `a`, but a native library can \
be linked only once
package `foo v0.5.0 ([..])`
... which is depended on by `b v0.5.0 ([..])`
links to native library `a`
package `a v0.5.0 (file://[..])`
... which is depended on by `foo v0.5.0 ([..])`
... which is depended on by `b v0.5.0 ([..])`
also links to native library `a`
"));
}
#[test]
fn rename_with_link_search_path() {
let p = project("foo")
.file("Cargo.toml", r#"
[project]
name = "foo"
version = "0.5.0"
authors = []
[lib]
crate-type = ["cdylib"]
"#)
.file("src/lib.rs", "
#[no_mangle]
pub extern fn cargo_test_foo() {}
");
let p = p.build();
assert_that(p.cargo("build"), execs().with_status(0));
let p2 = project("bar")
.file("Cargo.toml", r#"
[project]
name = "bar"
version = "0.5.0"
authors = []
"#)
.file("build.rs", r#"
use std::env;
use std::fs;
use std::path::PathBuf;
fn main() {
// Move the `libfoo.so` from the root of our project into the
// build directory. This way Cargo should automatically manage
// `LD_LIBRARY_PATH` and such.
let root = PathBuf::from(env::var_os("CARGO_MANIFEST_DIR").unwrap());
let file = format!("{}foo{}", env::consts::DLL_PREFIX, env::consts::DLL_SUFFIX);
let src = root.join(&file);
let dst_dir = PathBuf::from(env::var_os("OUT_DIR").unwrap());
let dst = dst_dir.join(&file);
fs::copy(&src, &dst).unwrap();
// handle windows, like below
drop(fs::copy(root.join("foo.dll.lib"), dst_dir.join("foo.dll.lib")));
println!("cargo:rerun-if-changed=build.rs");
if cfg!(target_env = "msvc") {
println!("cargo:rustc-link-lib=foo.dll");
} else {
println!("cargo:rustc-link-lib=foo");
}
println!("cargo:rustc-link-search={}",
dst.parent().unwrap().display());
}
"#)
.file("src/main.rs", r#"
extern {
#[link_name = "cargo_test_foo"]
fn foo();
}
fn main() {
unsafe { foo(); }
}
"#);
let p2 = p2.build();
// Move the output `libfoo.so` into the directory of `p2`, and then delete
// the `p` project. On OSX the `libfoo.dylib` artifact references the
// original path in `p` so we want to make sure that it can't find it (hence
// the deletion).
let root = PathBuf::from(p.root());
let root = root.join("target").join("debug").join("deps");
let file = format!("{}foo{}", env::consts::DLL_PREFIX, env::consts::DLL_SUFFIX);
let src = root.join(&file);
let dst = p2.root().join(&file);
fs::copy(&src, &dst).unwrap();
// copy the import library for windows, if it exists
drop(fs::copy(&root.join("foo.dll.lib"), p2.root().join("foo.dll.lib")));
fs::remove_dir_all(p.root()).unwrap();
// Everything should work the first time
assert_that(p2.cargo("run"),
execs().with_status(0));
// Now rename the root directory and rerun `cargo run`. Not only should we
// not build anything but we also shouldn't crash.
let mut new = p2.root();
new.pop();
new.push("bar2");
fs::rename(p2.root(), &new).unwrap();
assert_that(p2.cargo("run").cwd(&new),
execs().with_status(0)
.with_stderr("\
[FINISHED] [..]
[RUNNING] [..]
"));
}
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