1 files changed, 24 insertions, 0 deletions
diff --git a/src/test/ui/macros/issue-99907.rs b/src/test/ui/macros/issue-99907.rs
new file mode 100644
index 000000000..eebcfc2ef
--- /dev/null
+++ b/src/test/ui/macros/issue-99907.rs
@@ -0,0 +1,24 @@
+// check-pass
+// run-rustfix
+
+fn main() {
+    println!("Hello {:.1}!", f = 0.02f32);
+    //~^ WARNING named argument `f` is not used by name [named_arguments_used_positionally]
+    //~| HELP use the named argument by name to avoid ambiguity
+
+    println!("Hello {:1.1}!", f = 0.02f32);
+    //~^ WARNING named argument `f` is not used by name [named_arguments_used_positionally]
+    //~| HELP use the named argument by name to avoid ambiguity
+
+    println!("Hello {}!", f = 0.02f32);
+    //~^ WARNING named argument `f` is not used by name [named_arguments_used_positionally]
+    //~| HELP use the named argument by name to avoid ambiguity
+
+    println!("Hello { }!", f = 0.02f32);
+    //~^ WARNING named argument `f` is not used by name [named_arguments_used_positionally]
+    //~| HELP use the named argument by name to avoid ambiguity
+
+    println!("Hello {  }!", f = 0.02f32);
+    //~^ WARNING named argument `f` is not used by name [named_arguments_used_positionally]
+    //~| HELP use the named argument by name to avoid ambiguity
+}