From dc8cdab5a8b2135bf19d35a9feb17d4db1046dd5 Mon Sep 17 00:00:00 2001
From: Tetsuro Aoki <t.aoki1130@gmail.com>
Date: Sat, 1 May 2021 13:48:31 +0900
Subject: [PATCH] fix(jest-each): fix wrong interpolation

---
 CHANGELOG.md                                   | 1 +
 packages/jest-each/src/__tests__/array.test.ts | 8 +++++++-
 packages/jest-each/src/table/array.ts          | 7 +++++--
 3 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4697a0a1282e..37513c8a5370 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -61,6 +61,7 @@
 - `[jest-each]` [**BREAKING**] Ignore excess words in headings ([#8766](https://github.com/facebook/jest/pull/8766))
 - `[jest-each]` Support array index with template strings ([#10763](https://github.com/facebook/jest/pull/10763))
 - `[jest-each]` Interpolate `%%` correctly ([#11364](https://github.com/facebook/jest/pull/11364))
+- `[jest-each]` Fix wrong interpolation when the value of array contains multiple `%` ([#11364](https://github.com/facebook/jest/pull/11364))
 - `[jest-environment]` [**BREAKING**] Drop support for `runScript` for test environments ([#11155](https://github.com/facebook/jest/pull/11155))
 - `[jest-environment-jsdom]` Use inner realm’s `ArrayBuffer` constructor ([#10885](https://github.com/facebook/jest/pull/10885))
 - `[jest-environment-jsdom]` [**BREAKING**] Remove Node globals `setImmediate` and `clearImmediate` [#11222](https://github.com/facebook/jest/pull/11222)
diff --git a/packages/jest-each/src/__tests__/array.test.ts b/packages/jest-each/src/__tests__/array.test.ts
index 471dd172c88f..c76609d80505 100644
--- a/packages/jest-each/src/__tests__/array.test.ts
+++ b/packages/jest-each/src/__tests__/array.test.ts
@@ -403,12 +403,13 @@ describe('jest-each', () => {
         const eachObject = each.withGlobal(globalTestMocks)([
           ['hello', '%d', 10, '%s', {foo: 'bar'}],
           ['world', '%i', 1991, '%p', {foo: 'bar'}],
+          ['joe', '%d %d', 10, '%%s', {foo: 'bar'}],
         ]);
         const testFunction = get(eachObject, keyPath);
         testFunction('expected string: %s %s %d %s %p', () => {});
 
         const globalMock = get(globalTestMocks, keyPath);
-        expect(globalMock).toHaveBeenCalledTimes(2);
+        expect(globalMock).toHaveBeenCalledTimes(3);
         expect(globalMock).toHaveBeenCalledWith(
           'expected string: hello %d 10 %s {"foo": "bar"}',
           expectFunction,
@@ -419,6 +420,11 @@ describe('jest-each', () => {
           expectFunction,
           undefined,
         );
+        expect(globalMock).toHaveBeenCalledWith(
+          'expected string: joe %d %d 10 %%s {"foo": "bar"}',
+          expectFunction,
+          undefined,
+        );
       });
     });
   });
diff --git a/packages/jest-each/src/table/array.ts b/packages/jest-each/src/table/array.ts
index 4fc272982976..fe245e8e77bd 100644
--- a/packages/jest-each/src/table/array.ts
+++ b/packages/jest-each/src/table/array.ts
@@ -51,8 +51,11 @@ const formatTitle = (
     .replace(new RegExp(JEST_EACH_PLACEHOLDER_ESCAPE, 'g'), PLACEHOLDER_PREFIX);
 
 const normalisePlaceholderValue = (value: unknown) =>
-  typeof value === 'string' && SUPPORTED_PLACEHOLDERS.test(value)
-    ? value.replace(PLACEHOLDER_PREFIX, JEST_EACH_PLACEHOLDER_ESCAPE)
+  typeof value === 'string'
+    ? value.replace(
+        new RegExp(PLACEHOLDER_PREFIX, 'g'),
+        JEST_EACH_PLACEHOLDER_ESCAPE,
+      )
     : value;
 
 const getMatchingPlaceholders = (title: string) =>