rust/tests/ui/macros/macro-comma-support-rpass.rs

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//@ run-pass
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// This is meant to be a comprehensive test of invocations with/without
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// trailing commas (or other, similar optionally-trailing separators).
// Every macro is accounted for, even those not tested in this file.
// (There will be a note indicating why).
// std and core are both tested because they may contain separate
// implementations for some macro_rules! macros as an implementation
// detail.
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//@ compile-flags: --test -C debug_assertions=yes
//@ revisions: std core
#![cfg_attr(core, no_std)]
#![allow(deprecated)] // for deprecated `try!()` macro
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#![feature(concat_idents)]
#[cfg(std)] use std::fmt;
#[cfg(core)] use core::fmt;
#[test]
fn assert() {
assert!(true);
assert!(true,);
assert!(true, "hello");
assert!(true, "hello",);
assert!(true, "hello {}", "world");
assert!(true, "hello {}", "world",);
}
#[test]
fn assert_eq() {
assert_eq!(1, 1);
assert_eq!(1, 1,);
assert_eq!(1, 1, "hello");
assert_eq!(1, 1, "hello",);
assert_eq!(1, 1, "hello {}", "world");
assert_eq!(1, 1, "hello {}", "world",);
}
#[test]
fn assert_ne() {
assert_ne!(1, 2);
assert_ne!(1, 2,);
assert_ne!(1, 2, "hello");
assert_ne!(1, 2, "hello",);
assert_ne!(1, 2, "hello {}", "world");
assert_ne!(1, 2, "hello {}", "world",);
}
#[test]
#[allow(unexpected_cfgs)]
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fn cfg() {
let _ = cfg!(pants);
let _ = cfg!(pants,);
let _ = cfg!(pants = "pants");
let _ = cfg!(pants = "pants",);
let _ = cfg!(all(pants));
let _ = cfg!(all(pants),);
let _ = cfg!(all(pants,));
let _ = cfg!(all(pants,),);
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}
#[test]
fn column() {
let _ = column!();
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}
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// compile_error! is in a check-fail companion to this test
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#[test]
fn concat() {
let _ = concat!();
let _ = concat!("hello");
let _ = concat!("hello",);
let _ = concat!("hello", " world");
let _ = concat!("hello", " world",);
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}
#[test]
fn concat_idents() {
fn foo() {}
fn foobar() {}
concat_idents!(foo)();
concat_idents!(foo,)();
concat_idents!(foo, bar)();
concat_idents!(foo, bar,)();
}
#[test]
fn debug_assert() {
debug_assert!(true);
debug_assert!(true, );
debug_assert!(true, "hello");
debug_assert!(true, "hello",);
debug_assert!(true, "hello {}", "world");
debug_assert!(true, "hello {}", "world",);
}
#[test]
fn debug_assert_eq() {
debug_assert_eq!(1, 1);
debug_assert_eq!(1, 1,);
debug_assert_eq!(1, 1, "hello");
debug_assert_eq!(1, 1, "hello",);
debug_assert_eq!(1, 1, "hello {}", "world");
debug_assert_eq!(1, 1, "hello {}", "world",);
}
#[test]
fn debug_assert_ne() {
debug_assert_ne!(1, 2);
debug_assert_ne!(1, 2,);
debug_assert_ne!(1, 2, "hello");
debug_assert_ne!(1, 2, "hello",);
debug_assert_ne!(1, 2, "hello {}", "world");
debug_assert_ne!(1, 2, "hello {}", "world",);
}
#[test]
fn env() {
let _ = env!("PATH");
let _ = env!("PATH",);
let _ = env!("PATH", "not found");
let _ = env!("PATH", "not found",);
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}
#[cfg(std)]
#[test]
fn eprint() {
eprint!("hello");
eprint!("hello",);
eprint!("hello {}", "world");
eprint!("hello {}", "world",);
}
#[cfg(std)]
#[test]
fn eprintln() {
eprintln!();
eprintln!("hello");
eprintln!("hello",);
eprintln!("hello {}", "world");
eprintln!("hello {}", "world",);
}
#[test]
fn file() {
let _ = file!();
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}
#[cfg(std)]
#[test]
fn format() {
let _ = format!("hello");
let _ = format!("hello",);
let _ = format!("hello {}", "world");
let _ = format!("hello {}", "world",);
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}
#[test]
fn format_args() {
let _ = format_args!("hello");
let _ = format_args!("hello",);
let _ = format_args!("hello {}", "world");
let _ = format_args!("hello {}", "world",);
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}
#[test]
fn include() {
include!("auxiliary/macro-comma-support.rs");
include!("auxiliary/macro-comma-support.rs",);
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}
#[test]
fn include_bytes() {
let _ = include_bytes!("auxiliary/macro-comma-support.rs");
let _ = include_bytes!("auxiliary/macro-comma-support.rs",);
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}
#[test]
fn include_str() {
let _ = include_str!("auxiliary/macro-comma-support.rs");
let _ = include_str!("auxiliary/macro-comma-support.rs",);
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}
#[test]
fn line() {
let _ = line!();
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}
#[test]
fn matches() {
let _ = matches!(1, x if x > 0);
let _ = matches!(1, x if x > 0,);
}
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#[test]
fn module_path() {
let _ = module_path!();
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}
#[test]
fn option_env() {
let _ = option_env!("PATH");
let _ = option_env!("PATH",);
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}
#[test]
fn panic() {
// prevent 'unreachable code' warnings
let falsum = || false;
if falsum() { panic!(); }
if falsum() { panic!("hello"); }
if falsum() { panic!("hello",); }
if falsum() { panic!("hello {}", "world"); }
if falsum() { panic!("hello {}", "world",); }
}
#[cfg(std)]
#[test]
fn print() {
print!("hello");
print!("hello",);
print!("hello {}", "world");
print!("hello {}", "world",);
}
#[cfg(std)]
#[test]
fn println() {
println!();
println!("hello");
println!("hello",);
println!("hello {}", "world");
println!("hello {}", "world",);
}
// stringify! is N/A
#[cfg(std)]
#[test]
fn thread_local() {
// this has an optional trailing *semicolon*
thread_local! {
#[allow(unused)] pub static A: () = ()
}
thread_local! {
#[allow(unused)] pub static AA: () = ();
}
thread_local! {
#[allow(unused)] pub static AAA: () = ();
#[allow(unused)] pub static AAAA: () = ()
}
thread_local! {
#[allow(unused)] pub static AAAAG: () = ();
#[allow(unused)] pub static AAAAGH: () = ();
}
}
#[test]
fn try() {
fn inner() -> Result<(), ()> {
try!(Ok(()));
try!(Ok(()),);
Ok(())
}
inner().unwrap();
}
#[test]
fn unimplemented() {
// prevent 'unreachable code' warnings
let falsum = || false;
if falsum() { unimplemented!(); }
if falsum() { unimplemented!("hello"); }
if falsum() { unimplemented!("hello",); }
if falsum() { unimplemented!("hello {}", "world"); }
if falsum() { unimplemented!("hello {}", "world",); }
}
#[test]
fn unreachable() {
// prevent 'unreachable code' warnings
let falsum = || false;
if falsum() { unreachable!(); }
if falsum() { unreachable!("hello"); }
if falsum() { unreachable!("hello",); }
if falsum() { unreachable!("hello {}", "world"); }
if falsum() { unreachable!("hello {}", "world",); }
}
#[cfg(std)]
#[test]
fn vec() {
let _: Vec<()> = vec![];
let _ = vec![0];
let _ = vec![0,];
let _ = vec![0, 1];
let _ = vec![0, 1,];
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}
// give a test body access to a fmt::Formatter, which seems
// to be the easiest way to use 'write!' on core.
macro_rules! test_with_formatter {
(
#[test]
fn $fname:ident($f:ident: &mut fmt::Formatter) $block:block
) => {
#[test]
fn $fname() {
struct Struct;
impl fmt::Display for Struct {
fn fmt(&self, $f: &mut fmt::Formatter) -> fmt::Result {
Ok($block)
}
}
// suppress "unused"
assert!(true, "{}", Struct);
}
};
}
test_with_formatter! {
#[test]
fn write(f: &mut fmt::Formatter) {
let _ = write!(f, "hello");
let _ = write!(f, "hello",);
let _ = write!(f, "hello {}", "world");
let _ = write!(f, "hello {}", "world",);
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}
}
test_with_formatter! {
#[test]
fn writeln(f: &mut fmt::Formatter) {
let _ = writeln!(f);
let _ = writeln!(f,);
let _ = writeln!(f, "hello");
let _ = writeln!(f, "hello",);
let _ = writeln!(f, "hello {}", "world");
let _ = writeln!(f, "hello {}", "world",);
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}
}