opencode/packages/tui/test/util/selection.test.ts

import { expect, test } from "bun:test"
import { copy, copyOnSelectRelease } from "../../src/util/selection"

function renderer() {
  return {
    getSelection: () => ({
      getSelectedText: () => "beta",
      selectedRenderables: [],
    }),
    clearSelection: () => {},
  }
}

test("copy writes selected text without clearing the highlight", () => {
  let cleared = false
  const copied = copy(
    {
      getSelection: () => ({
        getSelectedText: () => "beta",
        selectedRenderables: [],
      }),
      clearSelection: () => {
        cleared = true
      },
    },
    { show: () => {}, error: () => {} },
    {
      async read() {
        return undefined
      },
      async write() {},
    },
  )
  expect(copied).toBe(true)
  expect(cleared).toBe(false)
})

test("copy-on-select ignores a later non-drag release", () => {
  const writes: string[] = []
  const clipboard = {
    async read() {
      return undefined
    },
    async write(value: string) {
      writes.push(value)
    },
  }
  const toast = { show: () => {}, error: () => {} }
  expect(copyOnSelectRelease({}, renderer(), toast, clipboard)).toBe(false)
  expect(copyOnSelectRelease({ isDragging: false }, renderer(), toast, clipboard)).toBe(false)
  expect(copyOnSelectRelease({ isDragging: true }, renderer(), toast, clipboard)).toBe(true)
  expect(writes).toEqual(["beta"])
})