1 files changed, 88 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/blocks_in_conditions.rs b/src/tools/clippy/tests/ui/blocks_in_conditions.rs
new file mode 100644
index 000000000..dd5ae4fb4
--- /dev/null
+++ b/src/tools/clippy/tests/ui/blocks_in_conditions.rs
@@ -0,0 +1,88 @@
+#![warn(clippy::blocks_in_conditions)]
+#![allow(unused, clippy::let_and_return, clippy::needless_if)]
+#![warn(clippy::nonminimal_bool)]
+
+macro_rules! blocky {
+    () => {{ true }};
+}
+
+macro_rules! blocky_too {
+    () => {{
+        let r = true;
+        r
+    }};
+}
+
+fn macro_if() {
+    if blocky!() {}
+
+    if blocky_too!() {}
+}
+
+fn condition_has_block() -> i32 {
+    if {
+        //~^ ERROR: in an `if` condition, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a `let`
+        let x = 3;
+        x == 3
+    } {
+        6
+    } else {
+        10
+    }
+}
+
+fn condition_has_block_with_single_expression() -> i32 {
+    if { true } { 6 } else { 10 }
+    //~^ ERROR: omit braces around single expression condition
+}
+
+fn condition_is_normal() -> i32 {
+    let x = 3;
+    if true && x == 3 { 6 } else { 10 }
+}
+
+fn condition_is_unsafe_block() {
+    let a: i32 = 1;
+
+    // this should not warn because the condition is an unsafe block
+    if unsafe { 1u32 == std::mem::transmute(a) } {
+        println!("1u32 == a");
+    }
+}
+
+fn block_in_assert() {
+    let opt = Some(42);
+    assert!(
+        opt.as_ref()
+            .map(|val| {
+                let mut v = val * 2;
+                v -= 1;
+                v * 3
+            })
+            .is_some()
+    );
+}
+
+// issue #11814
+fn block_in_match_expr(num: i32) -> i32 {
+    match {
+        //~^ ERROR: in a `match` scrutinee, avoid complex blocks or closures with blocks; instead, move the block or closure higher and bind it with a `let`
+        let opt = Some(2);
+        opt
+    } {
+        Some(0) => 1,
+        Some(n) => num * 2,
+        None => 0,
+    };
+
+    match unsafe {
+        let hearty_hearty_hearty = vec![240, 159, 146, 150];
+        String::from_utf8_unchecked(hearty_hearty_hearty).as_str()
+    } {
+        "💖" => 1,
+        "what" => 2,
+        _ => 3,
+    }
+}
+
+fn main() {}