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-rw-r--r--tests/testsuite/cfg.rs515
1 files changed, 515 insertions, 0 deletions
diff --git a/tests/testsuite/cfg.rs b/tests/testsuite/cfg.rs
new file mode 100644
index 0000000..dcce654
--- /dev/null
+++ b/tests/testsuite/cfg.rs
@@ -0,0 +1,515 @@
+//! Tests for cfg() expressions.
+
+use cargo_test_support::registry::Package;
+use cargo_test_support::rustc_host;
+use cargo_test_support::{basic_manifest, project};
+
+#[cargo_test]
+fn cfg_easy() {
+ let p = project()
+ .file(
+ "Cargo.toml",
+ r#"
+ [package]
+ name = "a"
+ version = "0.0.1"
+ authors = []
+
+ [target.'cfg(unix)'.dependencies]
+ b = { path = 'b' }
+ [target."cfg(windows)".dependencies]
+ b = { path = 'b' }
+ "#,
+ )
+ .file("src/lib.rs", "extern crate b;")
+ .file("b/Cargo.toml", &basic_manifest("b", "0.0.1"))
+ .file("b/src/lib.rs", "")
+ .build();
+ p.cargo("check -v").run();
+}
+
+#[cargo_test]
+fn dont_include() {
+ let other_family = if cfg!(unix) { "windows" } else { "unix" };
+ let p = project()
+ .file(
+ "Cargo.toml",
+ &format!(
+ r#"
+ [package]
+ name = "a"
+ version = "0.0.1"
+ authors = []
+
+ [target.'cfg({})'.dependencies]
+ b = {{ path = 'b' }}
+ "#,
+ other_family
+ ),
+ )
+ .file("src/lib.rs", "")
+ .file("b/Cargo.toml", &basic_manifest("b", "0.0.1"))
+ .file("b/src/lib.rs", "")
+ .build();
+ p.cargo("check")
+ .with_stderr(
+ "\
+[CHECKING] a v0.0.1 ([..])
+[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
+",
+ )
+ .run();
+}
+
+#[cargo_test]
+fn works_through_the_registry() {
+ Package::new("baz", "0.1.0").publish();
+ Package::new("bar", "0.1.0")
+ .target_dep("baz", "0.1.0", "cfg(unix)")
+ .target_dep("baz", "0.1.0", "cfg(windows)")
+ .publish();
+
+ let p = project()
+ .file(
+ "Cargo.toml",
+ r#"
+ [package]
+ name = "foo"
+ version = "0.0.1"
+ authors = []
+
+ [dependencies]
+ bar = "0.1.0"
+ "#,
+ )
+ .file(
+ "src/lib.rs",
+ "#[allow(unused_extern_crates)] extern crate bar;",
+ )
+ .build();
+
+ p.cargo("check")
+ .with_stderr(
+ "\
+[UPDATING] [..] index
+[DOWNLOADING] crates ...
+[DOWNLOADED] [..]
+[DOWNLOADED] [..]
+[CHECKING] baz v0.1.0
+[CHECKING] bar v0.1.0
+[CHECKING] foo v0.0.1 ([..])
+[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
+",
+ )
+ .run();
+}
+
+#[cargo_test]
+fn ignore_version_from_other_platform() {
+ let this_family = if cfg!(unix) { "unix" } else { "windows" };
+ let other_family = if cfg!(unix) { "windows" } else { "unix" };
+ Package::new("bar", "0.1.0").publish();
+ Package::new("bar", "0.2.0").publish();
+
+ let p = project()
+ .file(
+ "Cargo.toml",
+ &format!(
+ r#"
+ [package]
+ name = "foo"
+ version = "0.0.1"
+ authors = []
+
+ [target.'cfg({})'.dependencies]
+ bar = "0.1.0"
+
+ [target.'cfg({})'.dependencies]
+ bar = "0.2.0"
+ "#,
+ this_family, other_family
+ ),
+ )
+ .file(
+ "src/lib.rs",
+ "#[allow(unused_extern_crates)] extern crate bar;",
+ )
+ .build();
+
+ p.cargo("check")
+ .with_stderr(
+ "\
+[UPDATING] [..] index
+[DOWNLOADING] crates ...
+[DOWNLOADED] [..]
+[CHECKING] bar v0.1.0
+[CHECKING] foo v0.0.1 ([..])
+[FINISHED] dev [unoptimized + debuginfo] target(s) in [..]
+",
+ )
+ .run();
+}
+
+#[cargo_test]
+fn bad_target_spec() {
+ let p = project()
+ .file(
+ "Cargo.toml",
+ r#"
+ [package]
+ name = "foo"
+ version = "0.0.1"
+ authors = []
+
+ [target.'cfg(4)'.dependencies]
+ bar = "0.1.0"
+ "#,
+ )
+ .file("src/lib.rs", "")
+ .build();
+
+ p.cargo("check")
+ .with_status(101)
+ .with_stderr(
+ "\
+[ERROR] failed to parse manifest at `[..]`
+
+Caused by:
+ failed to parse `4` as a cfg expression: unexpected character `4` in cfg, [..]
+",
+ )
+ .run();
+}
+
+#[cargo_test]
+fn bad_target_spec2() {
+ let p = project()
+ .file(
+ "Cargo.toml",
+ r#"
+ [package]
+ name = "foo"
+ version = "0.0.1"
+ authors = []
+
+ [target.'cfg(bar =)'.dependencies]
+ baz = "0.1.0"
+ "#,
+ )
+ .file("src/lib.rs", "")
+ .build();
+
+ p.cargo("check")
+ .with_status(101)
+ .with_stderr(
+ "\
+[ERROR] failed to parse manifest at `[..]`
+
+Caused by:
+ failed to parse `bar =` as a cfg expression: expected a string, but cfg expression ended
+",
+ )
+ .run();
+}
+
+#[cargo_test]
+fn multiple_match_ok() {
+ let p = project()
+ .file(
+ "Cargo.toml",
+ &format!(
+ r#"
+ [package]
+ name = "a"
+ version = "0.0.1"
+ authors = []
+
+ [target.'cfg(unix)'.dependencies]
+ b = {{ path = 'b' }}
+ [target.'cfg(target_family = "unix")'.dependencies]
+ b = {{ path = 'b' }}
+ [target."cfg(windows)".dependencies]
+ b = {{ path = 'b' }}
+ [target.'cfg(target_family = "windows")'.dependencies]
+ b = {{ path = 'b' }}
+ [target."cfg(any(windows, unix))".dependencies]
+ b = {{ path = 'b' }}
+
+ [target.{}.dependencies]
+ b = {{ path = 'b' }}
+ "#,
+ rustc_host()
+ ),
+ )
+ .file("src/lib.rs", "extern crate b;")
+ .file("b/Cargo.toml", &basic_manifest("b", "0.0.1"))
+ .file("b/src/lib.rs", "")
+ .build();
+ p.cargo("check -v").run();
+}
+
+#[cargo_test]
+fn any_ok() {
+ let p = project()
+ .file(
+ "Cargo.toml",
+ r#"
+ [package]
+ name = "a"
+ version = "0.0.1"
+ authors = []
+
+ [target."cfg(any(windows, unix))".dependencies]
+ b = { path = 'b' }
+ "#,
+ )
+ .file("src/lib.rs", "extern crate b;")
+ .file("b/Cargo.toml", &basic_manifest("b", "0.0.1"))
+ .file("b/src/lib.rs", "")
+ .build();
+ p.cargo("check -v").run();
+}
+
+// https://github.com/rust-lang/cargo/issues/5313
+#[cargo_test]
+#[cfg(all(target_arch = "x86_64", target_os = "linux", target_env = "gnu"))]
+fn cfg_looks_at_rustflags_for_target() {
+ let p = project()
+ .file(
+ "Cargo.toml",
+ r#"
+ [package]
+ name = "a"
+ version = "0.0.1"
+ authors = []
+
+ [target.'cfg(with_b)'.dependencies]
+ b = { path = 'b' }
+ "#,
+ )
+ .file(
+ "src/main.rs",
+ r#"
+ #[cfg(with_b)]
+ extern crate b;
+
+ fn main() { b::foo(); }
+ "#,
+ )
+ .file("b/Cargo.toml", &basic_manifest("b", "0.0.1"))
+ .file("b/src/lib.rs", "pub fn foo() {}")
+ .build();
+
+ p.cargo("check --target x86_64-unknown-linux-gnu")
+ .env("RUSTFLAGS", "--cfg with_b")
+ .run();
+}
+
+#[cargo_test]
+fn bad_cfg_discovery() {
+ // Check error messages when `rustc -v` and `rustc --print=*` parsing fails.
+ //
+ // This is a `rustc` replacement which behaves differently based on an
+ // environment variable.
+ let p = project()
+ .at("compiler")
+ .file("Cargo.toml", &basic_manifest("compiler", "0.1.0"))
+ .file(
+ "src/main.rs",
+ r#"
+ fn run_rustc() -> String {
+ let mut cmd = std::process::Command::new("rustc");
+ for arg in std::env::args_os().skip(1) {
+ cmd.arg(arg);
+ }
+ String::from_utf8(cmd.output().unwrap().stdout).unwrap()
+ }
+
+ fn main() {
+ let mode = std::env::var("FUNKY_MODE").unwrap();
+ if mode == "bad-version" {
+ println!("foo");
+ return;
+ }
+ if std::env::args_os().any(|a| a == "-vV") {
+ print!("{}", run_rustc());
+ return;
+ }
+ if mode == "no-crate-types" {
+ return;
+ }
+ if mode == "bad-crate-type" {
+ println!("foo");
+ return;
+ }
+ let output = run_rustc();
+ let mut lines = output.lines();
+ let sysroot = loop {
+ let line = lines.next().unwrap();
+ if line.contains("___") {
+ println!("{}", line);
+ } else {
+ break line;
+ }
+ };
+ if mode == "no-sysroot" {
+ return;
+ }
+ println!("{}", sysroot);
+
+ if mode == "no-split-debuginfo" {
+ return;
+ }
+ loop {
+ let line = lines.next().unwrap();
+ if line == "___" {
+ println!("\n{line}");
+ break;
+ } else {
+ // As the number split-debuginfo options varies,
+ // concat them into one line.
+ print!("{line},");
+ }
+ };
+
+ if mode != "bad-cfg" {
+ panic!("unexpected");
+ }
+ println!("123");
+ }
+ "#,
+ )
+ .build();
+ p.cargo("build").run();
+ let funky_rustc = p.bin("compiler");
+
+ let p = project().file("src/lib.rs", "").build();
+
+ p.cargo("check")
+ .env("RUSTC", &funky_rustc)
+ .env("FUNKY_MODE", "bad-version")
+ .with_status(101)
+ .with_stderr(
+ "\
+[ERROR] `rustc -vV` didn't have a line for `host:`, got:
+foo
+
+",
+ )
+ .run();
+
+ p.cargo("check")
+ .env("RUSTC", &funky_rustc)
+ .env("FUNKY_MODE", "no-crate-types")
+ .with_status(101)
+ .with_stderr(
+ "\
+[ERROR] malformed output when learning about crate-type bin information
+command was: `[..]compiler[..] --crate-name ___ [..]`
+(no output received)
+",
+ )
+ .run();
+
+ p.cargo("check")
+ .env("RUSTC", &funky_rustc)
+ .env("FUNKY_MODE", "no-sysroot")
+ .with_status(101)
+ .with_stderr(
+ "\
+[ERROR] output of --print=sysroot missing when learning about target-specific information from rustc
+command was: `[..]compiler[..]--crate-type [..]`
+
+--- stdout
+[..]___[..]
+[..]___[..]
+[..]___[..]
+[..]___[..]
+[..]___[..]
+[..]___[..]
+
+",
+ )
+ .run();
+
+ p.cargo("check")
+ .env("RUSTC", &funky_rustc)
+ .env("FUNKY_MODE", "no-split-debuginfo")
+ .with_status(101)
+ .with_stderr(
+ "\
+[ERROR] output of --print=split-debuginfo missing when learning about target-specific information from rustc
+command was: `[..]compiler[..]--crate-type [..]`
+
+--- stdout
+[..]___[..]
+[..]___[..]
+[..]___[..]
+[..]___[..]
+[..]___[..]
+[..]___[..]
+[..]
+
+",
+ )
+ .run();
+
+ p.cargo("check")
+ .env("RUSTC", &funky_rustc)
+ .env("FUNKY_MODE", "bad-cfg")
+ .with_status(101)
+ .with_stderr(
+ "\
+[ERROR] failed to parse the cfg from `rustc --print=cfg`, got:
+[..]___[..]
+[..]___[..]
+[..]___[..]
+[..]___[..]
+[..]___[..]
+[..]___[..]
+[..]
+[..],[..]
+___
+123
+
+
+Caused by:
+ failed to parse `123` as a cfg expression: unexpected character `1` in cfg, \
+ expected parens, a comma, an identifier, or a string
+",
+ )
+ .run();
+}
+
+#[cargo_test]
+fn exclusive_dep_kinds() {
+ // Checks for a bug where the same package with different cfg expressions
+ // was not being filtered correctly.
+ Package::new("bar", "1.0.0").publish();
+ let p = project()
+ .file(
+ "Cargo.toml",
+ r#"
+ [package]
+ name = "foo"
+ version = "0.1.0"
+
+ [target.'cfg(abc)'.dependencies]
+ bar = "1.0"
+
+ [target.'cfg(not(abc))'.build-dependencies]
+ bar = "1.0"
+ "#,
+ )
+ .file("src/lib.rs", "")
+ .file("build.rs", "extern crate bar; fn main() {}")
+ .build();
+
+ p.cargo("check").run();
+ p.change_file("src/lib.rs", "extern crate bar;");
+ p.cargo("check")
+ .with_status(101)
+ // can't find crate for `bar`
+ .with_stderr_contains("[..]E0463[..]")
+ .run();
+}
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