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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /third_party/rust/cargo-platform/tests/test_cfg.rs | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/cargo-platform/tests/test_cfg.rs')
-rw-r--r-- | third_party/rust/cargo-platform/tests/test_cfg.rs | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/third_party/rust/cargo-platform/tests/test_cfg.rs b/third_party/rust/cargo-platform/tests/test_cfg.rs new file mode 100644 index 0000000000..dd99d9a79b --- /dev/null +++ b/third_party/rust/cargo-platform/tests/test_cfg.rs @@ -0,0 +1,251 @@ +use cargo_platform::{Cfg, CfgExpr, Platform}; +use std::fmt; +use std::str::FromStr; + +macro_rules! c { + ($a:ident) => { + Cfg::Name(stringify!($a).to_string()) + }; + ($a:ident = $e:expr) => { + Cfg::KeyPair(stringify!($a).to_string(), $e.to_string()) + }; +} + +macro_rules! e { + (any($($t:tt),*)) => (CfgExpr::Any(vec![$(e!($t)),*])); + (all($($t:tt),*)) => (CfgExpr::All(vec![$(e!($t)),*])); + (not($($t:tt)*)) => (CfgExpr::Not(Box::new(e!($($t)*)))); + (($($t:tt)*)) => (e!($($t)*)); + ($($t:tt)*) => (CfgExpr::Value(c!($($t)*))); +} + +fn good<T>(s: &str, expected: T) +where + T: FromStr + PartialEq + fmt::Debug, + T::Err: fmt::Display, +{ + let c = match T::from_str(s) { + Ok(c) => c, + Err(e) => panic!("failed to parse `{}`: {}", s, e), + }; + assert_eq!(c, expected); +} + +fn bad<T>(s: &str, err: &str) +where + T: FromStr + fmt::Display, + T::Err: fmt::Display, +{ + let e = match T::from_str(s) { + Ok(cfg) => panic!("expected `{}` to not parse but got {}", s, cfg), + Err(e) => e.to_string(), + }; + assert!( + e.contains(err), + "when parsing `{}`,\n\"{}\" not contained \ + inside: {}", + s, + err, + e + ); +} + +#[test] +fn cfg_syntax() { + good("foo", c!(foo)); + good("_bar", c!(_bar)); + good(" foo", c!(foo)); + good(" foo ", c!(foo)); + good(" foo = \"bar\"", c!(foo = "bar")); + good("foo=\"\"", c!(foo = "")); + good(" foo=\"3\" ", c!(foo = "3")); + good("foo = \"3 e\"", c!(foo = "3 e")); +} + +#[test] +fn cfg_syntax_bad() { + bad::<Cfg>("", "but cfg expression ended"); + bad::<Cfg>(" ", "but cfg expression ended"); + bad::<Cfg>("\t", "unexpected character"); + bad::<Cfg>("7", "unexpected character"); + bad::<Cfg>("=", "expected identifier"); + bad::<Cfg>(",", "expected identifier"); + bad::<Cfg>("(", "expected identifier"); + bad::<Cfg>("foo (", "unexpected content `(` found after cfg expression"); + bad::<Cfg>("bar =", "expected a string"); + bad::<Cfg>("bar = \"", "unterminated string"); + bad::<Cfg>( + "foo, bar", + "unexpected content `, bar` found after cfg expression", + ); +} + +#[test] +fn cfg_expr() { + good("foo", e!(foo)); + good("_bar", e!(_bar)); + good(" foo", e!(foo)); + good(" foo ", e!(foo)); + good(" foo = \"bar\"", e!(foo = "bar")); + good("foo=\"\"", e!(foo = "")); + good(" foo=\"3\" ", e!(foo = "3")); + good("foo = \"3 e\"", e!(foo = "3 e")); + + good("all()", e!(all())); + good("all(a)", e!(all(a))); + good("all(a, b)", e!(all(a, b))); + good("all(a, )", e!(all(a))); + good("not(a = \"b\")", e!(not(a = "b"))); + good("not(all(a))", e!(not(all(a)))); +} + +#[test] +fn cfg_expr_bad() { + bad::<CfgExpr>(" ", "but cfg expression ended"); + bad::<CfgExpr>(" all", "expected `(`"); + bad::<CfgExpr>("all(a", "expected `)`"); + bad::<CfgExpr>("not", "expected `(`"); + bad::<CfgExpr>("not(a", "expected `)`"); + bad::<CfgExpr>("a = ", "expected a string"); + bad::<CfgExpr>("all(not())", "expected identifier"); + bad::<CfgExpr>( + "foo(a)", + "unexpected content `(a)` found after cfg expression", + ); +} + +#[test] +fn cfg_matches() { + assert!(e!(foo).matches(&[c!(bar), c!(foo), c!(baz)])); + assert!(e!(any(foo)).matches(&[c!(bar), c!(foo), c!(baz)])); + assert!(e!(any(foo, bar)).matches(&[c!(bar)])); + assert!(e!(any(foo, bar)).matches(&[c!(foo)])); + assert!(e!(all(foo, bar)).matches(&[c!(foo), c!(bar)])); + assert!(e!(all(foo, bar)).matches(&[c!(foo), c!(bar)])); + assert!(e!(not(foo)).matches(&[c!(bar)])); + assert!(e!(not(foo)).matches(&[])); + assert!(e!(any((not(foo)), (all(foo, bar)))).matches(&[c!(bar)])); + assert!(e!(any((not(foo)), (all(foo, bar)))).matches(&[c!(foo), c!(bar)])); + + assert!(!e!(foo).matches(&[])); + assert!(!e!(foo).matches(&[c!(bar)])); + assert!(!e!(foo).matches(&[c!(fo)])); + assert!(!e!(any(foo)).matches(&[])); + assert!(!e!(any(foo)).matches(&[c!(bar)])); + assert!(!e!(any(foo)).matches(&[c!(bar), c!(baz)])); + assert!(!e!(all(foo)).matches(&[c!(bar), c!(baz)])); + assert!(!e!(all(foo, bar)).matches(&[c!(bar)])); + assert!(!e!(all(foo, bar)).matches(&[c!(foo)])); + assert!(!e!(all(foo, bar)).matches(&[])); + assert!(!e!(not(bar)).matches(&[c!(bar)])); + assert!(!e!(not(bar)).matches(&[c!(baz), c!(bar)])); + assert!(!e!(any((not(foo)), (all(foo, bar)))).matches(&[c!(foo)])); +} + +#[test] +fn bad_target_name() { + bad::<Platform>( + "any(cfg(unix), cfg(windows))", + "failed to parse `any(cfg(unix), cfg(windows))` as a cfg expression: \ + invalid target specifier: unexpected `(` character, \ + cfg expressions must start with `cfg(`", + ); + bad::<Platform>( + "!foo", + "failed to parse `!foo` as a cfg expression: \ + invalid target specifier: unexpected character ! in target name", + ); +} + +#[test] +fn round_trip_platform() { + fn rt(s: &str) { + let p = Platform::from_str(s).unwrap(); + let s2 = p.to_string(); + let p2 = Platform::from_str(&s2).unwrap(); + assert_eq!(p, p2); + } + rt("x86_64-apple-darwin"); + rt("foo"); + rt("cfg(windows)"); + rt("cfg(target_os = \"windows\")"); + rt( + "cfg(any(all(any(target_os = \"android\", target_os = \"linux\"), \ + any(target_arch = \"aarch64\", target_arch = \"arm\", target_arch = \"powerpc64\", \ + target_arch = \"x86\", target_arch = \"x86_64\")), \ + all(target_os = \"freebsd\", target_arch = \"x86_64\")))", + ); +} + +#[test] +fn check_cfg_attributes() { + fn ok(s: &str) { + let p = Platform::Cfg(s.parse().unwrap()); + let mut warnings = Vec::new(); + p.check_cfg_attributes(&mut warnings); + assert!( + warnings.is_empty(), + "Expected no warnings but got: {:?}", + warnings, + ); + } + + fn warn(s: &str, names: &[&str]) { + let p = Platform::Cfg(s.parse().unwrap()); + let mut warnings = Vec::new(); + p.check_cfg_attributes(&mut warnings); + assert_eq!( + warnings.len(), + names.len(), + "Expecter warnings about {:?} but got {:?}", + names, + warnings, + ); + for (name, warning) in names.iter().zip(warnings.iter()) { + assert!( + warning.contains(name), + "Expected warning about '{}' but got: {}", + name, + warning, + ); + } + } + + ok("unix"); + ok("windows"); + ok("any(not(unix), windows)"); + ok("foo"); + + ok("target_arch = \"abc\""); + ok("target_feature = \"abc\""); + ok("target_os = \"abc\""); + ok("target_family = \"abc\""); + ok("target_env = \"abc\""); + ok("target_endian = \"abc\""); + ok("target_pointer_width = \"abc\""); + ok("target_vendor = \"abc\""); + ok("bar = \"def\""); + + warn("test", &["test"]); + warn("debug_assertions", &["debug_assertions"]); + warn("proc_macro", &["proc_macro"]); + warn("feature = \"abc\"", &["feature"]); + + warn("any(not(debug_assertions), windows)", &["debug_assertions"]); + warn( + "any(not(feature = \"def\"), target_arch = \"abc\")", + &["feature"], + ); + warn( + "any(not(target_os = \"windows\"), proc_macro)", + &["proc_macro"], + ); + warn( + "any(not(feature = \"windows\"), proc_macro)", + &["feature", "proc_macro"], + ); + warn( + "all(not(debug_assertions), any(windows, proc_macro))", + &["debug_assertions", "proc_macro"], + ); +} |