New upstream version 1.52.1+dfsg1

[rustc.git] / src / tools / clippy / tests / ui / writeln_empty_string.fixed

diff --git a/src/tools/clippy/tests/ui/writeln_empty_string.fixed b/src/tools/clippy/tests/ui/writeln_empty_string.fixed
new file mode 100644 (file)
index 0000000..c3ac15b
--- /dev/null
+++ b/src/tools/clippy/tests/ui/writeln_empty_string.fixed
@@ -0,0 +1,20 @@
+// run-rustfix
+
+#![allow(unused_must_use)]
+#![warn(clippy::writeln_empty_string)]
+use std::io::Write;
+
+fn main() {
+    let mut v = Vec::new();
+
+    // These should fail
+    writeln!(&mut v);
+
+    let mut suggestion = Vec::new();
+    writeln!(&mut suggestion);
+
+    // These should be fine
+    writeln!(&mut v);
+    writeln!(&mut v, " ");
+    write!(&mut v, "");
+}