1 files changed, 90 insertions, 0 deletions
diff --git a/src/test/ui/lint/unused/lint-unused-imports.rs b/src/test/ui/lint/unused/lint-unused-imports.rs
new file mode 100644
index 000000000..4754d8880
--- /dev/null
+++ b/src/test/ui/lint/unused/lint-unused-imports.rs
@@ -0,0 +1,90 @@
+#![deny(unused_imports)]
+#![allow(dead_code)]
+
+use bar::c::cc as cal;
+
+use std::mem::*;            // shouldn't get errors for not using
+                            // everything imported
+use std::fmt::{};
+//~^ ERROR unused import: `std::fmt::{}`
+
+// Should get errors for both 'Some' and 'None'
+use std::option::Option::{Some, None};
+//~^ ERROR unused imports: `None`, `Some`
+
+use test::A;       //~ ERROR unused import: `test::A`
+// Be sure that if we just bring some methods into scope that they're also
+// counted as being used.
+use test::B;
+// But only when actually used: do not get confused by the method with the same name.
+use test::B2; //~ ERROR unused import: `test::B2`
+
+// Make sure this import is warned about when at least one of its imported names
+// is unused
+use test2::{foo, bar}; //~ ERROR unused import: `bar`
+
+mod test2 {
+    pub fn foo() {}
+    pub fn bar() {}
+}
+
+mod test {
+    pub trait A { fn a(&self) {} }
+    pub trait B { fn b(&self) {} }
+    pub trait B2 { fn b(&self) {} }
+    pub struct C;
+    impl A for C {}
+    impl B for C {}
+}
+
+mod foo {
+    pub struct Point{pub x: isize, pub y: isize}
+    pub struct Square{pub p: Point, pub h: usize, pub w: usize}
+}
+
+mod bar {
+    // Don't ignore on 'pub use' because we're not sure if it's used or not
+    pub use std::cmp::PartialEq;
+    pub struct Square;
+
+    pub mod c {
+        use foo::Point;
+        use foo::Square; //~ ERROR unused import: `foo::Square`
+        pub fn cc(_p: Point) -> super::Square {
+            fn f() -> super::Square {
+                super::Square
+            }
+            f()
+        }
+    }
+
+    #[allow(unused_imports)]
+    mod foo {
+        use std::cmp::PartialEq;
+    }
+}
+
+fn g() {
+    use self::g; //~ ERROR unused import: `self::g`
+    //~^ ERROR the item `g` is imported redundantly
+    fn f() {
+        self::g();
+    }
+}
+
+// cf. issue #35135.
+#[allow(unused_variables)]
+fn h() {
+    use test2::foo; //~ ERROR unused import: `test2::foo`
+    //~^ ERROR the item `foo` is imported redundantly
+    let foo = 0;
+}
+
+fn main() {
+    cal(foo::Point{x:3, y:9});
+    let mut a = 3;
+    let mut b = 4;
+    swap(&mut a, &mut b);
+    test::C.b();
+    let _a = foo();
+}