From adda19701208df9f2197d47a199582a37ca8b0b2 Mon Sep 17 00:00:00 2001
From: Ivan Goncharov <ivan.goncharov.ua@gmail.com>
Date: Sat, 27 Apr 2019 09:00:38 +0300
Subject: [PATCH] Flow: Enable "sketchy-number" lint rule

---
 .flowconfig                                             | 2 +-
 src/validation/__tests__/PossibleTypeExtensions-test.js | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.flowconfig b/.flowconfig
index 385a9dde28..75fcf47dbe 100644
--- a/.flowconfig
+++ b/.flowconfig
@@ -14,7 +14,7 @@ sketchy-null-bool=off
 sketchy-null-string=off
 sketchy-null-number=error
 sketchy-null-mixed=off
-sketchy-number=off
+sketchy-number=error
 untyped-type-import=error
 nonstrict-import=off
 untyped-import=off
diff --git a/src/validation/__tests__/PossibleTypeExtensions-test.js b/src/validation/__tests__/PossibleTypeExtensions-test.js
index b140f5e8ad..115f5c57bc 100644
--- a/src/validation/__tests__/PossibleTypeExtensions-test.js
+++ b/src/validation/__tests__/PossibleTypeExtensions-test.js
@@ -35,7 +35,7 @@ function extendingDifferentTypeKind(typeName, kind, l1, c1, l2, c2) {
   const message = extendingDifferentTypeKindMessage(typeName, kind);
   const locations = [{ line: l1, column: c1 }];
 
-  if (l2 && c2) {
+  if (l2 !== undefined && c2 !== undefined) {
     locations.push({ line: l2, column: c2 });
   }
   return { message, locations };