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[rust.git] / tests / ui / write_with_newline.rs

diff --git a/tests/ui/write_with_newline.rs b/tests/ui/write_with_newline.rs
index 0427bd3ec04a6cadb84f1ab7745da5789afd6380..93afd73d1114d257998089f1c683bfa090c06458 100644 (file)
--- a/tests/ui/write_with_newline.rs
+++ b/tests/ui/write_with_newline.rs
@@ -1,5 +1,8 @@
-#![allow(write_literal)]
-#![warn(write_with_newline)]
+// FIXME: Ideally these suggestions would be fixed via rustfix. Blocked by rust-lang/rust#53934
+// // run-rustfix
+
+#![allow(clippy::write_literal)]
+#![warn(clippy::write_with_newline)]
 
 use std::io::Write;
 
@@ -9,7 +12,7 @@ fn main() {
     // These should fail
     write!(&mut v, "Hello\n");
     write!(&mut v, "Hello {}\n", "world");
-    write!(&mut v, "Hello {} {}\n\n", "world", "#2");
+    write!(&mut v, "Hello {} {}\n", "world", "#2");
     write!(&mut v, "{}\n", 1265);
 
     // These should be fine
@@ -21,5 +24,35 @@ fn main() {
     write!(&mut v, "Issue\n{}", 1265);
     write!(&mut v, "{}", 1265);
     write!(&mut v, "\n{}", 1275);
+    write!(&mut v, "\n\n");
+    write!(&mut v, "like eof\n\n");
+    write!(&mut v, "Hello {} {}\n\n", "world", "#2");
+    writeln!(&mut v, "\ndon't\nwarn\nfor\nmultiple\nnewlines\n"); // #3126
+    writeln!(&mut v, "\nbla\n\n"); // #3126
+
+    // Escaping
+    write!(&mut v, "\\n"); // #3514
+    write!(&mut v, "\\\n"); // should fail
+    write!(&mut v, "\\\\n");
+
+    // Raw strings
+    write!(&mut v, r"\n"); // #3778
+
+    // Literal newlines should also fail
+    write!(
+        &mut v,
+        "
+"
+    );
+    write!(
+        &mut v,
+        r"
+"
+    );
 
+    // Don't warn on CRLF (#4208)
+    write!(&mut v, "\r\n");
+    write!(&mut v, "foo\r\n");
+    write!(&mut v, "\\r\n"); //~ ERROR
+    write!(&mut v, "foo\rbar\n");
 }