// This demonstrated Issue #84561: function-like macros produce unintuitive coverage results. //@ failure-status: 101 #[derive(PartialEq, Eq)] struct Foo(u32); #[rustfmt::skip] fn test3() { let is_true = std::env::args().len() == 1; let bar = Foo(1); assert_eq!(bar, Foo(1)); let baz = Foo(0); assert_ne!(baz, Foo(1)); println!("{:?}", Foo(1)); println!("{:?}", bar); println!("{:?}", baz); assert_eq!(Foo(1), Foo(1)); assert_ne!(Foo(0), Foo(1)); assert_eq!(Foo(2), Foo(2)); let bar = Foo(0); assert_ne!(bar, Foo(3)); assert_ne!(Foo(0), Foo(4)); assert_eq!(Foo(3), Foo(3), "with a message"); println!("{:?}", bar); println!("{:?}", Foo(1)); assert_ne!(Foo(0), Foo(5), "{}", if is_true { "true message" } else { "false message" }); assert_ne!( Foo(0) , Foo(5) , "{}" , if is_true { "true message" } else { "false message" } ); let is_true = std::env::args().len() == 1; assert_eq!( Foo(1), Foo(1) ); assert_ne!( Foo(0), Foo(1) ); assert_eq!( Foo(2), Foo(2) ); let bar = Foo(1); assert_ne!( bar, Foo(3) ); if is_true { assert_ne!( Foo(0), Foo(4) ); } else { assert_eq!( Foo(3), Foo(3) ); } if is_true { assert_ne!( Foo(0), Foo(4), "with a message" ); } else { assert_eq!( Foo(3), Foo(3), "with a message" ); } assert_ne!( if is_true { Foo(0) } else { Foo(1) }, Foo(5) ); assert_ne!( Foo(5), if is_true { Foo(0) } else { Foo(1) } ); assert_ne!( if is_true { assert_eq!( Foo(3), Foo(3) ); Foo(0) } else { assert_ne!( if is_true { Foo(0) } else { Foo(1) }, Foo(5) ); Foo(1) }, Foo(5), "with a message" ); assert_eq!( Foo(1), Foo(3), "this assert should fail" ); assert_eq!( Foo(3), Foo(3), "this assert should not be reached" ); } impl std::fmt::Debug for Foo { fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result { write!(f, "try and succeed")?; Ok(()) } } static mut DEBUG_LEVEL_ENABLED: bool = false; macro_rules! debug { ($($arg:tt)+) => ( if unsafe { DEBUG_LEVEL_ENABLED } { println!($($arg)+); } ); } fn test1() { debug!("debug is enabled"); debug!("debug is enabled"); let _ = 0; debug!("debug is enabled"); unsafe { DEBUG_LEVEL_ENABLED = true; } debug!("debug is enabled"); } macro_rules! call_debug { ($($arg:tt)+) => ( fn call_print(s: &str) { print!("{}", s); } call_print("called from call_debug: "); debug!($($arg)+); ); } fn test2() { call_debug!("debug is enabled"); } fn main() { test1(); test2(); test3(); }