1 files changed, 52 insertions, 0 deletions
diff --git a/tests/ui/or-patterns/basic-switchint.rs b/tests/ui/or-patterns/basic-switchint.rs
new file mode 100644
index 00000000000..adb902caf01
--- /dev/null
+++ b/tests/ui/or-patterns/basic-switchint.rs
@@ -0,0 +1,52 @@
+// Test basic or-patterns when the target pattern type will be lowered to
+// a `SwitchInt`. This will happen when the target type is an integer.
+
+// run-pass
+
+#[derive(Debug, PartialEq)]
+enum MatchArm {
+    Arm(usize),
+    Wild,
+}
+
+#[derive(Debug)]
+enum Foo {
+    One(usize),
+    Two(usize, usize),
+}
+
+fn test_foo(x: Foo) -> MatchArm {
+    match x {
+        // normal pattern.
+        Foo::One(0) | Foo::One(1) | Foo::One(2) => MatchArm::Arm(0),
+        // most simple or-pattern.
+        Foo::One(42 | 255) => MatchArm::Arm(1),
+        // multiple or-patterns for one structure.
+        Foo::Two(42 | 255, 1024 | 2048) => MatchArm::Arm(2),
+        // mix of pattern types in one or-pattern (range).
+        Foo::One(100 | 110..=120 | 210..=220) => MatchArm::Arm(3),
+        // multiple or-patterns with wild.
+        Foo::Two(0..=10 | 100..=110, 0 | _) => MatchArm::Arm(4),
+        // wild
+        _ => MatchArm::Wild,
+    }
+}
+
+fn main() {
+    // `Foo` tests.
+    assert_eq!(test_foo(Foo::One(0)), MatchArm::Arm(0));
+    assert_eq!(test_foo(Foo::One(42)), MatchArm::Arm(1));
+    assert_eq!(test_foo(Foo::One(43)), MatchArm::Wild);
+    assert_eq!(test_foo(Foo::One(255)), MatchArm::Arm(1));
+    assert_eq!(test_foo(Foo::One(256)), MatchArm::Wild);
+    assert_eq!(test_foo(Foo::Two(42, 1023)), MatchArm::Wild);
+    assert_eq!(test_foo(Foo::Two(255, 2048)), MatchArm::Arm(2));
+    assert_eq!(test_foo(Foo::One(100)), MatchArm::Arm(3));
+    assert_eq!(test_foo(Foo::One(115)), MatchArm::Arm(3));
+    assert_eq!(test_foo(Foo::One(105)), MatchArm::Wild);
+    assert_eq!(test_foo(Foo::One(215)), MatchArm::Arm(3));
+    assert_eq!(test_foo(Foo::One(121)), MatchArm::Wild);
+    assert_eq!(test_foo(Foo::Two(0, 42)), MatchArm::Arm(4));
+    assert_eq!(test_foo(Foo::Two(100, 0)), MatchArm::Arm(4));
+    assert_eq!(test_foo(Foo::Two(42, 0)), MatchArm::Wild);
+}