Wrong interpolation in test.each when the value of array contains multiple %

[frozenbonito]

🐛 Bug Report

When the value of array contains multiple %, wrong interpolation may occur.

To Reproduce

index.text.js

describe("test name should to be `%d %d`", () => {
  test.each([["%d %d", 1, 2, 3]])("%s", (_, a, b, expected) => {
    expect(a + b).toBe(expected);
  });
});

describe("test name should to be `%%d`", () => {
  test.each([["%%d", 1, 2, 3]])("%s", (_, a, b, expected) => {
    expect(a + b).toBe(expected);
  });
});

Run npx jest, then you can see the following:

$ npx jest
 PASS  ./index.test.js
  test name should to be `%d %d`
    ✓ %d 1 (2 ms)
  test name should to be `%%d`
    ✓ %1

Test Suites: 1 passed, 1 total
Tests:       2 passed, 2 total
Snapshots:   0 total
Time:        0.324 s, estimated 1 s
Ran all test suites.

Expected behavior

$ npx jest
 PASS  ./index.test.js
  test name should to be `%d %d`
    ✓ %d %d (2 ms)
  test name should to be `%%d`
    ✓ %%d

Test Suites: 1 passed, 1 total
Tests:       2 passed, 2 total
Snapshots:   0 total
Time:        0.324 s, estimated 1 s
Ran all test suites.

Link to repl or repo (highly encouraged)

envinfo

  System:
    OS: Linux 4.19 Debian GNU/Linux 10 (buster) 10 (buster)
    CPU: (8) x64 Intel(R) Core(TM) i7-9700K CPU @ 3.60GHz
  Binaries:
    Node: 14.16.1 - ~/.nvm/versions/node/v14.16.1/bin/node
    Yarn: 1.22.10 - ~/.nvm/versions/node/v14.16.1/bin/yarn
    npm: 7.11.1 - ~/.nvm/versions/node/v14.16.1/bin/npm
  npmPackages:
    jest: ^26.6.3 => 26.6.3

[github-actions]

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