Weirdness with snapshots

[quantizor]

It seems when using swc-node/jest that newlines are potentially being double escaped as they show up in snapshot output as raw characters where they were simply interpreted as newlines under the typical jest process.

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    +   body: >-
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      ↵

[mmkal]

Here's a minimal repro of this problem:

With ts-jest the following test passes:

import dedent from 'ts-dedent'

test('dedent', () => {
  const s = dedent`
    one
    two
      three
        four
      five
    six
  `

  expect(s).toMatchInlineSnapshot(`
"one
two
  three
    four
  five
six"
`)
})

failure with swc-jest:

  ● dedent

    expect(received).toMatchInlineSnapshot(snapshot)

    Snapshot name: `dedent 1`

    - Snapshot  - 6
    + Received  + 1

    - one
    - two
    -   three
    -     four
    -   five
    - six
    + \n    one\n    two\n      three\n        four\n      five\n    six\n  

      17 |   `
      18 |
    > 19 |   expect(s).toMatchInlineSnapshot(`
         |             ^
      20 | "one
      21 | two
      22 |   

---

Here are the jest.config.js setups used to reproduce this:

ts-jest:

module.exports = {
  preset: 'ts-jest',
  globals: {
    'ts-jest': {
      diagnostics: false,
      isolatedModules: true,
    },
  },
  testEnvironment: 'node',
  testRunner: 'jest-circus/runner',
  setupFilesAfterEnv: ['./scripts/jest-setup.js'],
  testRegex: /\.test\.ts$/.source,
}

@swc-node/jest:

module.exports = {
  transform: {
    '^.+\\.(t|j)sx?$': ['@swc-node/jest'],
  },
  testEnvironment: 'node',
  testRunner: 'jest-circus/runner',
  setupFilesAfterEnv: ['./scripts/jest-setup.js'],
  testRegex: /\.test\.ts$/.source,
}

[Whoaa512]

Looks related to swc-project/swc#1681