From e2f46537fdd6a8842aa595db4221e89a9956b337 Mon Sep 17 00:00:00 2001
From: Harutaka Kawamura <hkawamura0130@gmail.com>
Date: Sun, 4 Sep 2022 11:56:55 +0900
Subject: [PATCH] Fix false positive for `IfTuple` (#96)

---
 resources/test/fixtures/F634.py |  2 ++
 src/check_ast.rs                | 12 +++++++-----
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/resources/test/fixtures/F634.py b/resources/test/fixtures/F634.py
index 501a7f8ad2..f23ac85a36 100644
--- a/resources/test/fixtures/F634.py
+++ b/resources/test/fixtures/F634.py
@@ -6,3 +6,5 @@ for _ in range(5):
         pass
     elif (3, 4):
         pass
+    elif ():
+        pass
diff --git a/src/check_ast.rs b/src/check_ast.rs
index ec8efab33c..a5794c930b 100644
--- a/src/check_ast.rs
+++ b/src/check_ast.rs
@@ -241,11 +241,13 @@ impl Visitor for Checker<'_> {
             }
             StmtKind::If { test, .. } => {
                 if self.settings.select.contains(CheckKind::IfTuple.code()) {
-                    if let ExprKind::Tuple { .. } = test.node {
-                        self.checks.push(Check {
-                            kind: CheckKind::IfTuple,
-                            location: stmt.location,
-                        });
+                    if let ExprKind::Tuple { elts, .. } = &test.node {
+                        if !elts.is_empty() {
+                            self.checks.push(Check {
+                                kind: CheckKind::IfTuple,
+                                location: stmt.location,
+                            });
+                        }
                     }
                 }
             }