1 files changed, 40 insertions, 0 deletions
diff --git a/tests/ui/argument-suggestions/missing_arguments.rs b/tests/ui/argument-suggestions/missing_arguments.rs
new file mode 100644
index 00000000000..c26564641cb
--- /dev/null
+++ b/tests/ui/argument-suggestions/missing_arguments.rs
@@ -0,0 +1,40 @@
+fn one_arg(_a: i32) {}
+fn two_same(_a: i32, _b: i32) {}
+fn two_diff(_a: i32, _b: f32) {}
+fn three_same(_a: i32, _b: i32, _c: i32) {}
+fn three_diff(_a: i32, _b: f32, _c: &str) {}
+fn four_repeated(_a: i32, _b: f32, _c: f32, _d: &str) {}
+fn complex(_a: i32, _b: f32, _c: i32, _d: f32, _e: &str) {}
+
+fn main() {
+  one_arg(); //~ ERROR function takes
+  // The headers here show the types expected,
+  // with formatting to emphasize which arguments are missing
+  /*         i32     f32    */
+  two_same(               ); //~ ERROR function takes
+  two_same(   1           ); //~ ERROR function takes
+  two_diff(               ); //~ ERROR function takes
+  two_diff(   1           ); //~ ERROR function takes
+  two_diff(          1.0  ); //~ ERROR function takes
+
+  /*           i32     i32     i32    */
+  three_same(                       ); //~ ERROR function takes
+  three_same(   1                   ); //~ ERROR function takes
+  three_same(   1,      1           ); //~ ERROR function takes
+
+  /*           i32     f32     &str   */
+  three_diff(          1.0,     ""  ); //~ ERROR function takes
+  three_diff(   1,              ""  ); //~ ERROR function takes
+  three_diff(   1,     1.0          ); //~ ERROR function takes
+  three_diff(                   ""  ); //~ ERROR function takes
+  three_diff(          1.0          ); //~ ERROR function takes
+  three_diff(   1                   ); //~ ERROR function takes
+
+  /*              i32     f32     f32     &str   */
+  four_repeated(                               ); //~ ERROR function takes
+  four_repeated(   1,                     ""   ); //~ ERROR function takes
+
+  /*        i32   f32   i32   f32   &str   */
+  complex(                               ); //~ ERROR function takes
+  complex(   1,                     ""   ); //~ ERROR function takes
+}