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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /third_party/rust/cargo-platform/tests/test_cfg.rs
parentInitial commit. (diff)
downloadfirefox-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.rs251
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"],
+ );
+}