vitest-browser-svelte/src/core/validate-options.js

Render Svelte components in Vitest Browser Mode

class UnknownSvelteOptionsError extends TypeError {
  constructor(unknownOptions, allowedOptions) {
    super(`Unknown options.

    Unknown: [ ${unknownOptions.join(', ')} ]
    Allowed: [ ${allowedOptions.join(', ')} ]

    To pass both Svelte options and props to a component,
    or to use props that share a name with a Svelte option,
    you must place all your props under the \`props\` key:

    render(Component, { props: { /** props here **/ } })
`)
    this.name = 'UnknownSvelteOptionsError'
  }
}

function createValidateOptions(allowedOptions) {
  return (options) => {
    const isProps = !Object.keys(options).some(option =>
      allowedOptions.includes(option),
    )

    if (isProps) {
      return { props: options }
    }

    // Check if any props and Svelte options were accidentally mixed.
    const unknownOptions = Object.keys(options).filter(
      option => !allowedOptions.includes(option),
    )

    if (unknownOptions.length > 0) {
      throw new UnknownSvelteOptionsError(unknownOptions, allowedOptions)
    }

    return options
  }
}

export { createValidateOptions, UnknownSvelteOptionsError }