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opencode/packages/desktop/src/addons/serialize.test.ts
2025-12-06 06:43:53 -06:00

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import { describe, test, expect, beforeAll, afterEach } from "bun:test"
import { Terminal, Ghostty } from "ghostty-web"
import { SerializeAddon } from "./serialize"
let ghostty: Ghostty
beforeAll(async () => {
ghostty = await Ghostty.load()
})
const terminals: Terminal[] = []
afterEach(() => {
for (const term of terminals) {
term.dispose()
}
terminals.length = 0
document.body.innerHTML = ""
})
function createTerminal(cols = 80, rows = 24): { term: Terminal; addon: SerializeAddon; container: HTMLElement } {
const container = document.createElement("div")
document.body.appendChild(container)
const term = new Terminal({ cols, rows, ghostty })
const addon = new SerializeAddon()
term.loadAddon(addon)
term.open(container)
terminals.push(term)
return { term, addon, container }
}
function writeAndWait(term: Terminal, data: string): Promise<void> {
return new Promise((resolve) => {
term.write(data, resolve)
})
}
describe("SerializeAddon", () => {
describe("ANSI color preservation", () => {
test("should preserve text attributes (bold, italic, underline)", async () => {
const { term, addon } = createTerminal()
const input = "\x1b[1mBOLD\x1b[0m \x1b[3mITALIC\x1b[0m \x1b[4mUNDER\x1b[0m"
await writeAndWait(term, input)
const origLine = term.buffer.active.getLine(0)
expect(origLine!.getCell(0)!.isBold()).toBe(1)
expect(origLine!.getCell(5)!.isItalic()).toBe(1)
expect(origLine!.getCell(12)!.isUnderline()).toBe(1)
const serialized = addon.serialize({ range: { start: 0, end: 0 } })
const { term: term2 } = createTerminal()
terminals.push(term2)
await writeAndWait(term2, serialized)
const line = term2.buffer.active.getLine(0)
const boldCell = line!.getCell(0)
expect(boldCell!.getChars()).toBe("B")
expect(boldCell!.isBold()).toBe(1)
const italicCell = line!.getCell(5)
expect(italicCell!.getChars()).toBe("I")
expect(italicCell!.isItalic()).toBe(1)
const underCell = line!.getCell(12)
expect(underCell!.getChars()).toBe("U")
expect(underCell!.isUnderline()).toBe(1)
})
test("should preserve basic 16-color foreground colors", async () => {
const { term, addon } = createTerminal()
const input = "\x1b[31mRED\x1b[32mGREEN\x1b[34mBLUE\x1b[0mNORMAL"
await writeAndWait(term, input)
const origLine = term.buffer.active.getLine(0)
const origRedFg = origLine!.getCell(0)!.getFgColor()
const origGreenFg = origLine!.getCell(3)!.getFgColor()
const origBlueFg = origLine!.getCell(8)!.getFgColor()
const serialized = addon.serialize({ range: { start: 0, end: 0 } })
const { term: term2 } = createTerminal()
terminals.push(term2)
await writeAndWait(term2, serialized)
const line = term2.buffer.active.getLine(0)
expect(line).toBeDefined()
const redCell = line!.getCell(0)
expect(redCell!.getChars()).toBe("R")
expect(redCell!.getFgColor()).toBe(origRedFg)
const greenCell = line!.getCell(3)
expect(greenCell!.getChars()).toBe("G")
expect(greenCell!.getFgColor()).toBe(origGreenFg)
const blueCell = line!.getCell(8)
expect(blueCell!.getChars()).toBe("B")
expect(blueCell!.getFgColor()).toBe(origBlueFg)
})
test("should preserve 256-color palette colors", async () => {
const { term, addon } = createTerminal()
const input = "\x1b[38;5;196mRED256\x1b[0mNORMAL"
await writeAndWait(term, input)
const origLine = term.buffer.active.getLine(0)
const origRedFg = origLine!.getCell(0)!.getFgColor()
const serialized = addon.serialize({ range: { start: 0, end: 0 } })
const { term: term2 } = createTerminal()
terminals.push(term2)
await writeAndWait(term2, serialized)
const line = term2.buffer.active.getLine(0)
const redCell = line!.getCell(0)
expect(redCell!.getChars()).toBe("R")
expect(redCell!.getFgColor()).toBe(origRedFg)
})
test("should preserve RGB/truecolor colors", async () => {
const { term, addon } = createTerminal()
const input = "\x1b[38;2;255;128;64mRGB_TEXT\x1b[0mNORMAL"
await writeAndWait(term, input)
const origLine = term.buffer.active.getLine(0)
const origRgbFg = origLine!.getCell(0)!.getFgColor()
const serialized = addon.serialize({ range: { start: 0, end: 0 } })
const { term: term2 } = createTerminal()
terminals.push(term2)
await writeAndWait(term2, serialized)
const line = term2.buffer.active.getLine(0)
const rgbCell = line!.getCell(0)
expect(rgbCell!.getChars()).toBe("R")
expect(rgbCell!.getFgColor()).toBe(origRgbFg)
})
test("should preserve background colors", async () => {
const { term, addon } = createTerminal()
const input = "\x1b[48;2;255;0;0mRED_BG\x1b[48;2;0;255;0mGREEN_BG\x1b[0mNORMAL"
await writeAndWait(term, input)
const origLine = term.buffer.active.getLine(0)
const origRedBg = origLine!.getCell(0)!.getBgColor()
const origGreenBg = origLine!.getCell(6)!.getBgColor()
const serialized = addon.serialize({ range: { start: 0, end: 0 } })
const { term: term2 } = createTerminal()
terminals.push(term2)
await writeAndWait(term2, serialized)
const line = term2.buffer.active.getLine(0)
const redBgCell = line!.getCell(0)
expect(redBgCell!.getChars()).toBe("R")
expect(redBgCell!.getBgColor()).toBe(origRedBg)
const greenBgCell = line!.getCell(6)
expect(greenBgCell!.getChars()).toBe("G")
expect(greenBgCell!.getBgColor()).toBe(origGreenBg)
})
test("should handle combined colors and attributes", async () => {
const { term, addon } = createTerminal()
const input =
"\x1b[1;38;2;255;0;0;48;2;255;255;0mCOMBO\x1b[0mNORMAL "
await writeAndWait(term, input)
const origLine = term.buffer.active.getLine(0)
const origFg = origLine!.getCell(0)!.getFgColor()
const origBg = origLine!.getCell(0)!.getBgColor()
expect(origLine!.getCell(0)!.isBold()).toBe(1)
const serialized = addon.serialize({ range: { start: 0, end: 0 } })
const cleanSerialized = serialized.replace(/\x1b\[\d+X/g, "")
expect(cleanSerialized.startsWith("\x1b[1;")).toBe(true)
const { term: term2 } = createTerminal()
terminals.push(term2)
await writeAndWait(term2, cleanSerialized)
const line = term2.buffer.active.getLine(0)
const comboCell = line!.getCell(0)
expect(comboCell!.getChars()).toBe("C")
expect(cleanSerialized).toContain("\x1b[1;38;2;255;0;0;48;2;255;255;0m")
})
})
describe("round-trip serialization", () => {
test("should not produce ECH sequences", async () => {
const { term, addon } = createTerminal()
await writeAndWait(term, "\x1b[31mHello\x1b[0m World")
const serialized = addon.serialize()
const hasECH = /\x1b\[\d+X/.test(serialized)
expect(hasECH).toBe(false)
})
test("multi-line content should not have garbage characters", async () => {
const { term, addon } = createTerminal()
const content = [
"\x1b[1;32m\x1b[0m \x1b[34mcd\x1b[0m /some/path",
"\x1b[1;32m\x1b[0m \x1b[34mls\x1b[0m -la",
"total 42",
].join("\r\n")
await writeAndWait(term, content)
const serialized = addon.serialize()
expect(/\x1b\[\d+X/.test(serialized)).toBe(false)
const { term: term2 } = createTerminal()
terminals.push(term2)
await writeAndWait(term2, serialized)
for (let row = 0; row < 3; row++) {
const line = term2.buffer.active.getLine(row)?.translateToString(true)
expect(line?.includes("𑼝")).toBe(false)
}
expect(term2.buffer.active.getLine(0)?.translateToString(true)).toContain("cd /some/path")
expect(term2.buffer.active.getLine(1)?.translateToString(true)).toContain("ls -la")
expect(term2.buffer.active.getLine(2)?.translateToString(true)).toBe("total 42")
})
test("serialized output written to new terminal should match original colors", async () => {
const { term, addon } = createTerminal(40, 5)
const input = "\x1b[38;2;255;0;0mHello\x1b[0m \x1b[38;2;0;255;0mWorld\x1b[0m! "
await writeAndWait(term, input)
const origLine = term.buffer.active.getLine(0)
const origHelloFg = origLine!.getCell(0)!.getFgColor()
const origWorldFg = origLine!.getCell(6)!.getFgColor()
const serialized = addon.serialize({ range: { start: 0, end: 0 } })
const { term: term2 } = createTerminal(40, 5)
terminals.push(term2)
await writeAndWait(term2, serialized)
const newLine = term2.buffer.active.getLine(0)
expect(newLine!.getCell(0)!.getChars()).toBe("H")
expect(newLine!.getCell(0)!.getFgColor()).toBe(origHelloFg)
expect(newLine!.getCell(6)!.getChars()).toBe("W")
expect(newLine!.getCell(6)!.getFgColor()).toBe(origWorldFg)
expect(newLine!.getCell(11)!.getChars()).toBe("!")
})
})
})