Tests fail when run in non-UTC time zone

[justingrant]

🐛 Bug Report

The current immer tests will fail if the system time zone is not UTC, e.g. when running locally instead of in CI. I built a fix for this and will PR it shortly.

Link to repro

n/a (it only reproes locally)

To Reproduce

npm test

Observed behavior

 FAIL  __tests__/patch.js (5.203s)
  ● #676 patching Date objects

    expect(received).toMatchInlineSnapshot(snapshot)

    Snapshot name: `#676 patching Date objects 1`

    Snapshot: "2020-11-10T08:08:08.003Z"
    Received: "2020-11-10T16:08:08.003Z"

      1136 |    })
      1137 | 
    > 1138 |    expect(nextState.date.toJSON()).toMatchInlineSnapshot(
           |                                    ^
      1139 |            `"2020-11-10T08:08:08.003Z"`
      1140 |    )
      1141 |    expect(nextState.test.perform()).toBe("tested!")

      at Object.<anonymous> (__tests__/patch.js:1138:34)

  ● #676 patching Date objects

    expect(received).toMatchInlineSnapshot(snapshot)

    Snapshot name: `#676 patching Date objects 2`

    Snapshot: "2020-11-10T08:08:08.003Z"
    Received: "2020-11-10T16:08:08.003Z"

      1143 |    const rebuilt = applyPatches({}, patches)
      1144 |    expect(rebuilt.date).toBeInstanceOf(Date)
    > 1145 |    expect(rebuilt.date.toJSON()).toMatchInlineSnapshot(
           |                                  ^
      1146 |            `"2020-11-10T08:08:08.003Z"`
      1147 |    )
      1148 |    expect(rebuilt.date).toEqual(new Date(2020, 10, 10, 8, 8, 8, 3))

      at Object.<anonymous> (__tests__/patch.js:1145:32)

 › 2 snapshots failed.

Expected behavior

No failures.

Environment

We only accept bug reports against the latest Immer version.

• Immer version:
• I filed this report against the latest version of Immer
• [(n/a)] Occurs with setUseProxies(true)
• [(n/a)] Occurs with setUseProxies(false) (ES5 only)

[mweststrate]

🎉 This issue has been resolved in version 8.0.1 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀