1 files changed, 42 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/cast_lossless_bool.fixed b/src/tools/clippy/tests/ui/cast_lossless_bool.fixed
new file mode 100644
index 000000000..9e2da45c3
--- /dev/null
+++ b/src/tools/clippy/tests/ui/cast_lossless_bool.fixed
@@ -0,0 +1,42 @@
+// run-rustfix
+
+#![allow(dead_code)]
+#![warn(clippy::cast_lossless)]
+
+fn main() {
+    // Test clippy::cast_lossless with casts to integer types
+    let _ = u8::from(true);
+    let _ = u16::from(true);
+    let _ = u32::from(true);
+    let _ = u64::from(true);
+    let _ = u128::from(true);
+    let _ = usize::from(true);
+
+    let _ = i8::from(true);
+    let _ = i16::from(true);
+    let _ = i32::from(true);
+    let _ = i64::from(true);
+    let _ = i128::from(true);
+    let _ = isize::from(true);
+
+    // Test with an expression wrapped in parens
+    let _ = u16::from(true | false);
+}
+
+// The lint would suggest using `u32::from(input)` here but the `XX::from` function is not const,
+// so we skip the lint if the expression is in a const fn.
+// See #3656
+const fn abc(input: bool) -> u32 {
+    input as u32
+}
+
+// Same as the above issue. We can't suggest `::from` in const fns in impls
+mod cast_lossless_in_impl {
+    struct A;
+
+    impl A {
+        pub const fn convert(x: bool) -> u64 {
+            x as u64
+        }
+    }
+}