1 files changed, 89 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/blocks_in_conditions_closure.rs b/src/tools/clippy/tests/ui/blocks_in_conditions_closure.rs
new file mode 100644
index 000000000..db31e4ae1
--- /dev/null
+++ b/src/tools/clippy/tests/ui/blocks_in_conditions_closure.rs
@@ -0,0 +1,89 @@
+#![warn(clippy::blocks_in_conditions)]
+#![allow(
+    unused,
+    clippy::let_and_return,
+    clippy::needless_if,
+    clippy::unnecessary_literal_unwrap
+)]
+
+fn predicate<F: FnOnce(T) -> bool, T>(pfn: F, val: T) -> bool {
+    pfn(val)
+}
+
+fn pred_test() {
+    let v = 3;
+    let sky = "blue";
+    // This is a sneaky case, where the block isn't directly in the condition,
+    // but is actually inside a closure that the condition is using.
+    // The same principle applies -- add some extra expressions to make sure
+    // linter isn't confused by them.
+    if v == 3
+        && sky == "blue"
+        && predicate(
+            |x| {
+                //~^ ERROR: in an `if` condition, avoid complex blocks or closures with blocks
+                //~| NOTE: `-D clippy::blocks-in-conditions` implied by `-D warnings`
+                let target = 3;
+                x == target
+            },
+            v,
+        )
+    {}
+
+    if predicate(
+        |x| {
+            //~^ ERROR: in an `if` condition, avoid complex blocks or closures with blocks; in
+            let target = 3;
+            x == target
+        },
+        v,
+    ) {}
+}
+
+fn closure_without_block() {
+    if predicate(|x| x == 3, 6) {}
+}
+
+fn macro_in_closure() {
+    let option = Some(true);
+
+    if option.unwrap_or_else(|| unimplemented!()) {
+        unimplemented!()
+    }
+}
+
+fn closure(_: impl FnMut()) -> bool {
+    true
+}
+
+fn function_with_empty_closure() {
+    if closure(|| {}) {}
+}
+
+// issue #11814
+fn match_with_pred() {
+    let v = 3;
+    match Some(predicate(
+        |x| {
+            //~^ ERROR: in a `match` scrutinee, avoid complex blocks or closures with blocks
+            let target = 3;
+            x == target
+        },
+        v,
+    )) {
+        Some(true) => 1,
+        Some(false) => 2,
+        None => 3,
+    };
+}
+
+#[rustfmt::skip]
+fn main() {
+    let mut range = 0..10;
+    range.all(|i| {i < 10} );
+
+    let v = vec![1, 2, 3];
+    if v.into_iter().any(|x| {x == 4}) {
+        println!("contains 4!");
+    }
+}