From 592d6f3d815a7038d7d30e0f705463598ec79c32 Mon Sep 17 00:00:00 2001
From: Josh Rosenstein <32781407+JoshRosenstein@users.noreply.github.com>
Date: Tue, 30 Apr 2019 04:38:29 -0400
Subject: [PATCH] Checking if node6 breaks with lookup

---
 .../jest-matcher-utils/src/__tests__/index.test.ts  | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/packages/jest-matcher-utils/src/__tests__/index.test.ts b/packages/jest-matcher-utils/src/__tests__/index.test.ts
index f86b0830e218..625a62e62bf2 100644
--- a/packages/jest-matcher-utils/src/__tests__/index.test.ts
+++ b/packages/jest-matcher-utils/src/__tests__/index.test.ts
@@ -309,20 +309,27 @@ describe('getLabelPrinter', () => {
 });
 
 if (isBigIntAllowed) {
+  // See if node 6-8 breaks using a lookup
+  function getBigInt(number: number) {
+    // @ts-ignore
+    const map = [0n, 1n, 2n, 3n];
+    return map[number];
+  }
+
   describe('bigint Syntax', () => {
     test('stringify()', () => {
       // @ts-ignore
-      expect(stringify(1n)).toBe('1n');
+      expect(stringify(getBigInt(1))).toBe('1n');
     });
 
     test('toEqual()', () => {
       // @ts-ignore
-      expect(1n).toEqual(BigInt(1));
+      expect(getBigInt(1)).toEqual(BigInt(1));
     });
 
     test('diff()', () => {
       // @ts-ignore
-      expect(diff(1n, 2n)).toBe(null);
+      expect(diff(getBigInt(1), getBigInt(2))).toBe(null);
     });
   });
 }