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-rw-r--r--tests/ui/parser/unicode-character-literal.rs21
1 files changed, 21 insertions, 0 deletions
diff --git a/tests/ui/parser/unicode-character-literal.rs b/tests/ui/parser/unicode-character-literal.rs
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+++ b/tests/ui/parser/unicode-character-literal.rs
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+// Regression test for #88684: Improve diagnostics for combining marks
+// in character literals.
+
+// run-rustfix
+
+fn main() {
+ let _spade = '♠️';
+ //~^ ERROR: character literal may only contain one codepoint
+ //~| NOTE: this `♠` is followed by the combining mark `\u{fe0f}`
+ //~| HELP: if you meant to write a `str` literal, use double quotes
+
+ let _s = 'ṩ̂̊';
+ //~^ ERROR: character literal may only contain one codepoint
+ //~| NOTE: this `s` is followed by the combining marks `\u{323}\u{307}\u{302}\u{30a}`
+ //~| HELP: if you meant to write a `str` literal, use double quotes
+
+ let _a = 'Å';
+ //~^ ERROR: character literal may only contain one codepoint
+ //~| NOTE: this `A` is followed by the combining mark `\u{30a}`
+ //~| HELP: consider using the normalized form `\u{c5}` of this character
+}