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Add tests for new format! error message

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This commit is contained in:
Tommy Ip 2017-11-06 14:20:15 +00:00
parent 82d5ea4b12
commit d5cb474f57
1 changed files with 25 additions and 22 deletions
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47
src/test/compile-fail/ifmt-bad-arg.rs
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@ -11,36 +11,39 @@
fn main() {
// bad arguments to the format! call
format!("{}"); //~ ERROR: invalid reference to argument
// bad number of arguments, see #44954 (originally #15780)
format!("{1}", 1); //~ ERROR: invalid reference to argument `1`
//~^ ERROR: argument never used
format!("{foo}"); //~ ERROR: no argument named `foo`
format!("{}");
//~^ ERROR: 1 positional argument in format string, but no arguments were given
format!("", 1, 2); //~ ERROR: multiple unused formatting arguments
format!("{}", 1, 2); //~ ERROR: argument never used
format!("{1}", 1, 2); //~ ERROR: argument never used
format!("{}", 1, foo=2); //~ ERROR: named argument never used
format!("{foo}", 1, foo=2); //~ ERROR: argument never used
format!("", foo=2); //~ ERROR: named argument never used
format!("{1}", 1);
//~^ ERROR: 1 positional argument in format string, but there is only 1 argument
//~^^ ERROR: argument never used
format!("{foo}", foo=1, foo=2); //~ ERROR: duplicate argument
format!("", foo=1, 2); //~ ERROR: positional arguments cannot follow
// bad number of arguments, see #15780
format!("{0}");
//~^ ERROR invalid reference to argument `0` (no arguments given)
format!("{} {}");
//~^ ERROR: 2 positional arguments in format string, but no arguments were given
format!("{0} {1}", 1);
//~^ ERROR invalid reference to argument `1` (there is 1 argument)
//~^ ERROR: 2 positional arguments in format string, but there is only 1 argument
format!("{0} {1} {2}", 1, 2);
//~^ ERROR invalid reference to argument `2` (there are 2 arguments)
//~^ ERROR: 3 positional arguments in format string, but there are only 2 arguments
format!("{0} {1}");
//~^ ERROR invalid reference to argument `0` (no arguments given)
//~^^ ERROR invalid reference to argument `1` (no arguments given)
format!("{} {value} {} {}", 1, value=2);
//~^ ERROR: invalid reference to positional argument 2 (there are only 2 arguments)
format!("{name} {value} {} {} {} {} {} {}", 0, name=1, value=2);
//~^ ERROR: invalid reference to positional arguments 3, 4 and 5 (there are only 3 arguments)
format!("{foo}"); //~ ERROR: no argument named `foo`
format!("", 1, 2); //~ ERROR: multiple unused formatting arguments
format!("{}", 1, 2); //~ ERROR: argument never used
format!("{1}", 1, 2); //~ ERROR: argument never used
format!("{}", 1, foo=2); //~ ERROR: named argument never used
format!("{foo}", 1, foo=2); //~ ERROR: argument never used
format!("", foo=2); //~ ERROR: named argument never used
format!("{foo}", foo=1, foo=2); //~ ERROR: duplicate argument
format!("", foo=1, 2); //~ ERROR: positional arguments cannot follow
// bad named arguments, #35082