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497 lines
14 KiB
TypeScript
497 lines
14 KiB
TypeScript
import { describe, test, expect } from "bun:test"
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import path from "path"
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import fs from "fs/promises"
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import { EditTool } from "../../src/tool/edit"
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import { Instance } from "../../src/project/instance"
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import { tmpdir } from "../fixture/fixture"
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import { FileTime } from "../../src/file/time"
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const ctx = {
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sessionID: "test-edit-session",
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messageID: "",
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callID: "",
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agent: "build",
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abort: AbortSignal.any([]),
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messages: [],
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metadata: () => {},
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ask: async () => {},
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}
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describe("tool.edit", () => {
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describe("creating new files", () => {
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test("creates new file when oldString is empty", async () => {
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await using tmp = await tmpdir()
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const filepath = path.join(tmp.path, "newfile.txt")
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await Instance.provide({
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directory: tmp.path,
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fn: async () => {
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const edit = await EditTool.init()
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const result = await edit.execute(
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{
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filePath: filepath,
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oldString: "",
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newString: "new content",
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},
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ctx,
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)
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expect(result.metadata.diff).toContain("new content")
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const content = await fs.readFile(filepath, "utf-8")
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expect(content).toBe("new content")
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},
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})
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})
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test("creates new file with nested directories", async () => {
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await using tmp = await tmpdir()
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const filepath = path.join(tmp.path, "nested", "dir", "file.txt")
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await Instance.provide({
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directory: tmp.path,
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fn: async () => {
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const edit = await EditTool.init()
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await edit.execute(
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{
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filePath: filepath,
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oldString: "",
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newString: "nested file",
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},
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ctx,
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)
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const content = await fs.readFile(filepath, "utf-8")
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expect(content).toBe("nested file")
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},
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})
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})
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test("emits add event for new files", async () => {
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await using tmp = await tmpdir()
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const filepath = path.join(tmp.path, "new.txt")
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await Instance.provide({
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directory: tmp.path,
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fn: async () => {
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const { Bus } = await import("../../src/bus")
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const { File } = await import("../../src/file")
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const { FileWatcher } = await import("../../src/file/watcher")
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const events: string[] = []
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const unsubEdited = Bus.subscribe(File.Event.Edited, () => events.push("edited"))
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const unsubUpdated = Bus.subscribe(FileWatcher.Event.Updated, () => events.push("updated"))
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const edit = await EditTool.init()
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await edit.execute(
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{
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filePath: filepath,
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oldString: "",
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newString: "content",
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},
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ctx,
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)
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expect(events).toContain("edited")
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expect(events).toContain("updated")
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unsubEdited()
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unsubUpdated()
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},
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})
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})
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})
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describe("editing existing files", () => {
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test("replaces text in existing file", async () => {
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await using tmp = await tmpdir()
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const filepath = path.join(tmp.path, "existing.txt")
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await fs.writeFile(filepath, "old content here", "utf-8")
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await Instance.provide({
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directory: tmp.path,
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fn: async () => {
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FileTime.read(ctx.sessionID, filepath)
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const edit = await EditTool.init()
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const result = await edit.execute(
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{
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filePath: filepath,
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oldString: "old content",
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newString: "new content",
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},
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ctx,
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)
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expect(result.output).toContain("Edit applied successfully")
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const content = await fs.readFile(filepath, "utf-8")
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expect(content).toBe("new content here")
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},
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})
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})
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test("throws error when file does not exist", async () => {
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await using tmp = await tmpdir()
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const filepath = path.join(tmp.path, "nonexistent.txt")
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await Instance.provide({
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directory: tmp.path,
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fn: async () => {
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FileTime.read(ctx.sessionID, filepath)
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const edit = await EditTool.init()
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await expect(
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edit.execute(
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{
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filePath: filepath,
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oldString: "old",
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newString: "new",
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},
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ctx,
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),
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).rejects.toThrow("not found")
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},
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})
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})
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test("throws error when oldString equals newString", async () => {
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await using tmp = await tmpdir()
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const filepath = path.join(tmp.path, "file.txt")
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await fs.writeFile(filepath, "content", "utf-8")
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await Instance.provide({
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directory: tmp.path,
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fn: async () => {
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const edit = await EditTool.init()
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await expect(
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edit.execute(
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{
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filePath: filepath,
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oldString: "same",
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newString: "same",
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},
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ctx,
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),
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).rejects.toThrow("identical")
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},
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})
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})
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test("throws error when oldString not found in file", async () => {
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await using tmp = await tmpdir()
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const filepath = path.join(tmp.path, "file.txt")
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await fs.writeFile(filepath, "actual content", "utf-8")
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await Instance.provide({
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directory: tmp.path,
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fn: async () => {
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FileTime.read(ctx.sessionID, filepath)
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const edit = await EditTool.init()
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await expect(
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edit.execute(
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{
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filePath: filepath,
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oldString: "not in file",
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newString: "replacement",
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},
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ctx,
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),
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).rejects.toThrow()
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},
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})
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})
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test("throws error when file was not read first (FileTime)", async () => {
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await using tmp = await tmpdir()
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const filepath = path.join(tmp.path, "file.txt")
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await fs.writeFile(filepath, "content", "utf-8")
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await Instance.provide({
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directory: tmp.path,
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fn: async () => {
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const edit = await EditTool.init()
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await expect(
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edit.execute(
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{
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filePath: filepath,
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oldString: "content",
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newString: "modified",
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},
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ctx,
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),
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).rejects.toThrow("You must read file")
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},
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})
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})
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test("throws error when file has been modified since read", async () => {
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await using tmp = await tmpdir()
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const filepath = path.join(tmp.path, "file.txt")
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await fs.writeFile(filepath, "original content", "utf-8")
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await Instance.provide({
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directory: tmp.path,
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fn: async () => {
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// Read first
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FileTime.read(ctx.sessionID, filepath)
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// Wait a bit to ensure different timestamps
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await new Promise((resolve) => setTimeout(resolve, 100))
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// Simulate external modification
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await fs.writeFile(filepath, "modified externally", "utf-8")
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// Try to edit with the new content
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const edit = await EditTool.init()
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await expect(
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edit.execute(
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{
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filePath: filepath,
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oldString: "modified externally",
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newString: "edited",
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},
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ctx,
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),
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).rejects.toThrow("modified since it was last read")
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},
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})
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})
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test("replaces all occurrences with replaceAll option", async () => {
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await using tmp = await tmpdir()
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const filepath = path.join(tmp.path, "file.txt")
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await fs.writeFile(filepath, "foo bar foo baz foo", "utf-8")
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await Instance.provide({
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directory: tmp.path,
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fn: async () => {
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FileTime.read(ctx.sessionID, filepath)
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const edit = await EditTool.init()
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await edit.execute(
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{
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filePath: filepath,
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oldString: "foo",
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newString: "qux",
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replaceAll: true,
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},
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ctx,
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)
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const content = await fs.readFile(filepath, "utf-8")
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expect(content).toBe("qux bar qux baz qux")
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},
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})
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})
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test("emits change event for existing files", async () => {
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await using tmp = await tmpdir()
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const filepath = path.join(tmp.path, "file.txt")
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await fs.writeFile(filepath, "original", "utf-8")
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await Instance.provide({
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directory: tmp.path,
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fn: async () => {
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FileTime.read(ctx.sessionID, filepath)
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const { Bus } = await import("../../src/bus")
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const { File } = await import("../../src/file")
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const { FileWatcher } = await import("../../src/file/watcher")
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const events: string[] = []
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const unsubEdited = Bus.subscribe(File.Event.Edited, () => events.push("edited"))
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const unsubUpdated = Bus.subscribe(FileWatcher.Event.Updated, () => events.push("updated"))
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const edit = await EditTool.init()
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await edit.execute(
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{
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filePath: filepath,
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oldString: "original",
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newString: "modified",
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},
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ctx,
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)
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expect(events).toContain("edited")
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expect(events).toContain("updated")
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unsubEdited()
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unsubUpdated()
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},
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})
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})
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})
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describe("edge cases", () => {
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test("handles multiline replacements", async () => {
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await using tmp = await tmpdir()
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const filepath = path.join(tmp.path, "file.txt")
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await fs.writeFile(filepath, "line1\nline2\nline3", "utf-8")
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await Instance.provide({
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directory: tmp.path,
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fn: async () => {
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FileTime.read(ctx.sessionID, filepath)
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const edit = await EditTool.init()
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await edit.execute(
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{
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filePath: filepath,
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oldString: "line2",
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newString: "new line 2\nextra line",
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},
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ctx,
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)
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const content = await fs.readFile(filepath, "utf-8")
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expect(content).toBe("line1\nnew line 2\nextra line\nline3")
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},
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})
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})
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test("handles CRLF line endings", async () => {
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await using tmp = await tmpdir()
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const filepath = path.join(tmp.path, "file.txt")
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await fs.writeFile(filepath, "line1\r\nold\r\nline3", "utf-8")
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await Instance.provide({
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directory: tmp.path,
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fn: async () => {
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FileTime.read(ctx.sessionID, filepath)
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const edit = await EditTool.init()
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await edit.execute(
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{
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filePath: filepath,
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oldString: "old",
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newString: "new",
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},
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ctx,
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)
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const content = await fs.readFile(filepath, "utf-8")
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expect(content).toBe("line1\r\nnew\r\nline3")
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},
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})
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})
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test("throws error when oldString equals newString", async () => {
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await using tmp = await tmpdir()
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const filepath = path.join(tmp.path, "file.txt")
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await fs.writeFile(filepath, "content", "utf-8")
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await Instance.provide({
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directory: tmp.path,
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fn: async () => {
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const edit = await EditTool.init()
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await expect(
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edit.execute(
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{
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filePath: filepath,
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oldString: "",
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newString: "",
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},
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ctx,
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),
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).rejects.toThrow("identical")
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},
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})
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})
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test("throws error when path is directory", async () => {
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await using tmp = await tmpdir()
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const dirpath = path.join(tmp.path, "adir")
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await fs.mkdir(dirpath)
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await Instance.provide({
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directory: tmp.path,
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fn: async () => {
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FileTime.read(ctx.sessionID, dirpath)
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const edit = await EditTool.init()
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await expect(
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edit.execute(
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{
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filePath: dirpath,
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oldString: "old",
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newString: "new",
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},
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ctx,
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),
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).rejects.toThrow("directory")
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},
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})
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})
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test("tracks file diff statistics", async () => {
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await using tmp = await tmpdir()
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const filepath = path.join(tmp.path, "file.txt")
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await fs.writeFile(filepath, "line1\nline2\nline3", "utf-8")
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await Instance.provide({
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directory: tmp.path,
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fn: async () => {
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FileTime.read(ctx.sessionID, filepath)
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const edit = await EditTool.init()
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const result = await edit.execute(
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{
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filePath: filepath,
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oldString: "line2",
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newString: "new line a\nnew line b",
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},
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ctx,
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)
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expect(result.metadata.filediff).toBeDefined()
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expect(result.metadata.filediff.file).toBe(filepath)
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expect(result.metadata.filediff.additions).toBeGreaterThan(0)
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},
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})
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})
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})
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describe("concurrent editing", () => {
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test("serializes concurrent edits to same file", async () => {
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await using tmp = await tmpdir()
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const filepath = path.join(tmp.path, "file.txt")
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await fs.writeFile(filepath, "0", "utf-8")
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await Instance.provide({
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directory: tmp.path,
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fn: async () => {
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FileTime.read(ctx.sessionID, filepath)
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const edit = await EditTool.init()
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// Two concurrent edits
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const promise1 = edit.execute(
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{
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filePath: filepath,
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oldString: "0",
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newString: "1",
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},
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ctx,
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)
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// Need to read again since FileTime tracks per-session
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FileTime.read(ctx.sessionID, filepath)
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const promise2 = edit.execute(
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{
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filePath: filepath,
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oldString: "0",
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newString: "2",
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},
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ctx,
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)
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// Both should complete without error (though one might fail due to content mismatch)
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const results = await Promise.allSettled([promise1, promise2])
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expect(results.some((r) => r.status === "fulfilled")).toBe(true)
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},
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})
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})
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})
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})
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