Function createMock

Convenience method to create a mock from an existing object by overriding some (possibly deeply nested) methods or properties.

Example:

import * as fs from 'node:fs'
const mockedThing = t.mockRequire('./module.js', t.createMock(
  { fs },
  { fs: { statSync: myMockedStatSync }}
)
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This can also appear anywhere in the object hierarchy, which may be more convenient in some cases:

import * as blah from '@long-name/blah-api'
const mockedThing = t.mockRequire('./module.js', {
  fs: t.createMock(fs, { statSync: myMockedStatSync }),
  child_process: t.createMock(child_process, { spawn: mockSpawn }),
  '@long-name/blah-api': t.createMock(blah, {
    some: {
      nested: {
        prop: true
      }
    }
  })
})
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To remove a property, set it as undefined in the override.