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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /compiler/rustc_builtin_macros/src/format_foreign/printf | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | compiler/rustc_builtin_macros/src/format_foreign/printf/tests.rs | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/compiler/rustc_builtin_macros/src/format_foreign/printf/tests.rs b/compiler/rustc_builtin_macros/src/format_foreign/printf/tests.rs new file mode 100644 index 000000000..fc7442470 --- /dev/null +++ b/compiler/rustc_builtin_macros/src/format_foreign/printf/tests.rs @@ -0,0 +1,145 @@ +use super::{iter_subs, parse_next_substitution as pns, Format as F, Num as N, Substitution as S}; + +macro_rules! assert_eq_pnsat { + ($lhs:expr, $rhs:expr) => { + assert_eq!( + pns($lhs).and_then(|(s, _)| s.translate().ok()), + $rhs.map(<String as From<&str>>::from) + ) + }; +} + +#[test] +fn test_escape() { + assert_eq!(pns("has no escapes"), None); + assert_eq!(pns("has no escapes, either %"), None); + assert_eq!(pns("*so* has a %% escape"), Some((S::Escape((11, 13)), " escape"))); + assert_eq!(pns("%% leading escape"), Some((S::Escape((0, 2)), " leading escape"))); + assert_eq!(pns("trailing escape %%"), Some((S::Escape((16, 18)), ""))); +} + +#[test] +fn test_parse() { + macro_rules! assert_pns_eq_sub { + ($in_:expr, { + $param:expr, $flags:expr, + $width:expr, $prec:expr, $len:expr, $type_:expr, + $pos:expr, + }) => { + assert_eq!( + pns(concat!($in_, "!")), + Some(( + S::Format(F { + span: $in_, + parameter: $param, + flags: $flags, + width: $width, + precision: $prec, + length: $len, + type_: $type_, + position: rustc_span::InnerSpan::new($pos.0, $pos.1), + }), + "!" + )) + ) + }; + } + + assert_pns_eq_sub!("%!", + { None, "", None, None, None, "!", (0, 2), }); + assert_pns_eq_sub!("%c", + { None, "", None, None, None, "c", (0, 2), }); + assert_pns_eq_sub!("%s", + { None, "", None, None, None, "s", (0, 2), }); + assert_pns_eq_sub!("%06d", + { None, "0", Some(N::Num(6)), None, None, "d", (0, 4), }); + assert_pns_eq_sub!("%4.2f", + { None, "", Some(N::Num(4)), Some(N::Num(2)), None, "f", (0, 5), }); + assert_pns_eq_sub!("%#x", + { None, "#", None, None, None, "x", (0, 3), }); + assert_pns_eq_sub!("%-10s", + { None, "-", Some(N::Num(10)), None, None, "s", (0, 5), }); + assert_pns_eq_sub!("%*s", + { None, "", Some(N::Next), None, None, "s", (0, 3), }); + assert_pns_eq_sub!("%-10.*s", + { None, "-", Some(N::Num(10)), Some(N::Next), None, "s", (0, 7), }); + assert_pns_eq_sub!("%-*.*s", + { None, "-", Some(N::Next), Some(N::Next), None, "s", (0, 6), }); + assert_pns_eq_sub!("%.6i", + { None, "", None, Some(N::Num(6)), None, "i", (0, 4), }); + assert_pns_eq_sub!("%+i", + { None, "+", None, None, None, "i", (0, 3), }); + assert_pns_eq_sub!("%08X", + { None, "0", Some(N::Num(8)), None, None, "X", (0, 4), }); + assert_pns_eq_sub!("%lu", + { None, "", None, None, Some("l"), "u", (0, 3), }); + assert_pns_eq_sub!("%Iu", + { None, "", None, None, Some("I"), "u", (0, 3), }); + assert_pns_eq_sub!("%I32u", + { None, "", None, None, Some("I32"), "u", (0, 5), }); + assert_pns_eq_sub!("%I64u", + { None, "", None, None, Some("I64"), "u", (0, 5), }); + assert_pns_eq_sub!("%'d", + { None, "'", None, None, None, "d", (0, 3), }); + assert_pns_eq_sub!("%10s", + { None, "", Some(N::Num(10)), None, None, "s", (0, 4), }); + assert_pns_eq_sub!("%-10.10s", + { None, "-", Some(N::Num(10)), Some(N::Num(10)), None, "s", (0, 8), }); + assert_pns_eq_sub!("%1$d", + { Some(1), "", None, None, None, "d", (0, 4), }); + assert_pns_eq_sub!("%2$.*3$d", + { Some(2), "", None, Some(N::Arg(3)), None, "d", (0, 8), }); + assert_pns_eq_sub!("%1$*2$.*3$d", + { Some(1), "", Some(N::Arg(2)), Some(N::Arg(3)), None, "d", (0, 11), }); + assert_pns_eq_sub!("%-8ld", + { None, "-", Some(N::Num(8)), None, Some("l"), "d", (0, 5), }); +} + +#[test] +fn test_iter() { + let s = "The %d'th word %% is: `%.*s` %!\n"; + let subs: Vec<_> = iter_subs(s, 0).map(|sub| sub.translate().ok()).collect(); + assert_eq!( + subs.iter().map(|ms| ms.as_ref().map(|s| &s[..])).collect::<Vec<_>>(), + vec![Some("{}"), None, Some("{:.*}"), None] + ); +} + +/// Checks that the translations are what we expect. +#[test] +fn test_translation() { + assert_eq_pnsat!("%c", Some("{}")); + assert_eq_pnsat!("%d", Some("{}")); + assert_eq_pnsat!("%u", Some("{}")); + assert_eq_pnsat!("%x", Some("{:x}")); + assert_eq_pnsat!("%X", Some("{:X}")); + assert_eq_pnsat!("%e", Some("{:e}")); + assert_eq_pnsat!("%E", Some("{:E}")); + assert_eq_pnsat!("%f", Some("{}")); + assert_eq_pnsat!("%g", Some("{:e}")); + assert_eq_pnsat!("%G", Some("{:E}")); + assert_eq_pnsat!("%s", Some("{}")); + assert_eq_pnsat!("%p", Some("{:p}")); + + assert_eq_pnsat!("%06d", Some("{:06}")); + assert_eq_pnsat!("%4.2f", Some("{:4.2}")); + assert_eq_pnsat!("%#x", Some("{:#x}")); + assert_eq_pnsat!("%-10s", Some("{:<10}")); + assert_eq_pnsat!("%*s", None); + assert_eq_pnsat!("%-10.*s", Some("{:<10.*}")); + assert_eq_pnsat!("%-*.*s", None); + assert_eq_pnsat!("%.6i", Some("{:06}")); + assert_eq_pnsat!("%+i", Some("{:+}")); + assert_eq_pnsat!("%08X", Some("{:08X}")); + assert_eq_pnsat!("%lu", Some("{}")); + assert_eq_pnsat!("%Iu", Some("{}")); + assert_eq_pnsat!("%I32u", Some("{}")); + assert_eq_pnsat!("%I64u", Some("{}")); + assert_eq_pnsat!("%'d", None); + assert_eq_pnsat!("%10s", Some("{:>10}")); + assert_eq_pnsat!("%-10.10s", Some("{:<10.10}")); + assert_eq_pnsat!("%1$d", Some("{0}")); + assert_eq_pnsat!("%2$.*3$d", Some("{1:02$}")); + assert_eq_pnsat!("%1$*2$.*3$s", Some("{0:>1$.2$}")); + assert_eq_pnsat!("%-8ld", Some("{:<8}")); +} |