Update upstream source from tag 'upstream/1.52.1+dfsg1'

[rustc.git] / src / tools / clippy / tests / ui / checked_unwrap / complex_conditionals.rs

diff --git a/src/tools/clippy/tests/ui/checked_unwrap/complex_conditionals.rs b/src/tools/clippy/tests/ui/checked_unwrap/complex_conditionals.rs
new file mode 100644 (file)
index 0000000..c986c99
--- /dev/null
+++ b/src/tools/clippy/tests/ui/checked_unwrap/complex_conditionals.rs
@@ -0,0 +1,54 @@
+#![deny(clippy::panicking_unwrap, clippy::unnecessary_unwrap)]
+#![allow(clippy::if_same_then_else)]
+
+fn test_complex_conditions() {
+    let x: Result<(), ()> = Ok(());
+    let y: Result<(), ()> = Ok(());
+    if x.is_ok() && y.is_err() {
+        x.unwrap(); // unnecessary
+        x.unwrap_err(); // will panic
+        y.unwrap(); // will panic
+        y.unwrap_err(); // unnecessary
+    } else {
+        // not statically determinable whether any of the following will always succeed or always fail:
+        x.unwrap();
+        x.unwrap_err();
+        y.unwrap();
+        y.unwrap_err();
+    }
+
+    if x.is_ok() || y.is_ok() {
+        // not statically determinable whether any of the following will always succeed or always fail:
+        x.unwrap();
+        y.unwrap();
+    } else {
+        x.unwrap(); // will panic
+        x.unwrap_err(); // unnecessary
+        y.unwrap(); // will panic
+        y.unwrap_err(); // unnecessary
+    }
+    let z: Result<(), ()> = Ok(());
+    if x.is_ok() && !(y.is_ok() || z.is_err()) {
+        x.unwrap(); // unnecessary
+        x.unwrap_err(); // will panic
+        y.unwrap(); // will panic
+        y.unwrap_err(); // unnecessary
+        z.unwrap(); // unnecessary
+        z.unwrap_err(); // will panic
+    }
+    if x.is_ok() || !(y.is_ok() && z.is_err()) {
+        // not statically determinable whether any of the following will always succeed or always fail:
+        x.unwrap();
+        y.unwrap();
+        z.unwrap();
+    } else {
+        x.unwrap(); // will panic
+        x.unwrap_err(); // unnecessary
+        y.unwrap(); // unnecessary
+        y.unwrap_err(); // will panic
+        z.unwrap(); // will panic
+        z.unwrap_err(); // unnecessary
+    }
+}
+
+fn main() {}