Files
opencode/packages/opencode/test/tool/read.test.ts
2026-01-07 23:01:02 -06:00

304 lines
11 KiB
TypeScript

import { describe, expect, test } from "bun:test"
import path from "path"
import { ReadTool } from "../../src/tool/read"
import { Instance } from "../../src/project/instance"
import { tmpdir } from "../fixture/fixture"
import { PermissionNext } from "../../src/permission/next"
import { Agent } from "../../src/agent/agent"
const FIXTURES_DIR = path.join(import.meta.dir, "fixtures")
const ctx = {
sessionID: "test",
messageID: "",
callID: "",
agent: "build",
abort: AbortSignal.any([]),
metadata: () => {},
ask: async () => {},
}
describe("tool.read external_directory permission", () => {
test("allows reading absolute path inside project directory", async () => {
await using tmp = await tmpdir({
init: async (dir) => {
await Bun.write(path.join(dir, "test.txt"), "hello world")
},
})
await Instance.provide({
directory: tmp.path,
fn: async () => {
const read = await ReadTool.init()
const result = await read.execute({ filePath: path.join(tmp.path, "test.txt") }, ctx)
expect(result.output).toContain("hello world")
},
})
})
test("allows reading file in subdirectory inside project directory", async () => {
await using tmp = await tmpdir({
init: async (dir) => {
await Bun.write(path.join(dir, "subdir", "test.txt"), "nested content")
},
})
await Instance.provide({
directory: tmp.path,
fn: async () => {
const read = await ReadTool.init()
const result = await read.execute({ filePath: path.join(tmp.path, "subdir", "test.txt") }, ctx)
expect(result.output).toContain("nested content")
},
})
})
test("asks for external_directory permission when reading absolute path outside project", async () => {
await using outerTmp = await tmpdir({
init: async (dir) => {
await Bun.write(path.join(dir, "secret.txt"), "secret data")
},
})
await using tmp = await tmpdir({ git: true })
await Instance.provide({
directory: tmp.path,
fn: async () => {
const read = await ReadTool.init()
const requests: Array<Omit<PermissionNext.Request, "id" | "sessionID" | "tool">> = []
const testCtx = {
...ctx,
ask: async (req: Omit<PermissionNext.Request, "id" | "sessionID" | "tool">) => {
requests.push(req)
},
}
await read.execute({ filePath: path.join(outerTmp.path, "secret.txt") }, testCtx)
const extDirReq = requests.find((r) => r.permission === "external_directory")
expect(extDirReq).toBeDefined()
expect(extDirReq!.patterns.some((p) => p.includes(outerTmp.path))).toBe(true)
},
})
})
test("asks for external_directory permission when reading relative path outside project", async () => {
await using tmp = await tmpdir({ git: true })
await Instance.provide({
directory: tmp.path,
fn: async () => {
const read = await ReadTool.init()
const requests: Array<Omit<PermissionNext.Request, "id" | "sessionID" | "tool">> = []
const testCtx = {
...ctx,
ask: async (req: Omit<PermissionNext.Request, "id" | "sessionID" | "tool">) => {
requests.push(req)
},
}
// This will fail because file doesn't exist, but we can check if permission was asked
await read.execute({ filePath: "../outside.txt" }, testCtx).catch(() => {})
const extDirReq = requests.find((r) => r.permission === "external_directory")
expect(extDirReq).toBeDefined()
},
})
})
test("does not ask for external_directory permission when reading inside project", async () => {
await using tmp = await tmpdir({
git: true,
init: async (dir) => {
await Bun.write(path.join(dir, "internal.txt"), "internal content")
},
})
await Instance.provide({
directory: tmp.path,
fn: async () => {
const read = await ReadTool.init()
const requests: Array<Omit<PermissionNext.Request, "id" | "sessionID" | "tool">> = []
const testCtx = {
...ctx,
ask: async (req: Omit<PermissionNext.Request, "id" | "sessionID" | "tool">) => {
requests.push(req)
},
}
await read.execute({ filePath: path.join(tmp.path, "internal.txt") }, testCtx)
const extDirReq = requests.find((r) => r.permission === "external_directory")
expect(extDirReq).toBeUndefined()
},
})
})
})
describe("tool.read env file blocking", () => {
const cases: [string, boolean][] = [
[".env", true],
[".env.local", true],
[".env.production", true],
[".env.development.local", true],
[".env.example", false],
[".envrc", false],
["environment.ts", false],
]
describe.each(["build", "plan"])("agent=%s", (agentName) => {
test.each(cases)("%s blocked=%s", async (filename, blocked) => {
await using tmp = await tmpdir({
init: (dir) => Bun.write(path.join(dir, filename), "content"),
})
await Instance.provide({
directory: tmp.path,
fn: async () => {
const agent = await Agent.get(agentName)
const ctxWithPermissions = {
...ctx,
ask: async (req: Omit<PermissionNext.Request, "id" | "sessionID" | "tool">) => {
for (const pattern of req.patterns) {
const rule = PermissionNext.evaluate(req.permission, pattern, agent.permission)
if (rule.action === "deny") {
throw new PermissionNext.DeniedError(agent.permission)
}
}
},
}
const read = await ReadTool.init()
const promise = read.execute({ filePath: path.join(tmp.path, filename) }, ctxWithPermissions)
if (blocked) {
await expect(promise).rejects.toThrow(PermissionNext.DeniedError)
} else {
expect((await promise).output).toContain("content")
}
},
})
})
})
})
describe("tool.read truncation", () => {
test("truncates large file by bytes and sets truncated metadata", async () => {
await using tmp = await tmpdir({
init: async (dir) => {
const content = await Bun.file(path.join(FIXTURES_DIR, "models-api.json")).text()
await Bun.write(path.join(dir, "large.json"), content)
},
})
await Instance.provide({
directory: tmp.path,
fn: async () => {
const read = await ReadTool.init()
const result = await read.execute({ filePath: path.join(tmp.path, "large.json") }, ctx)
expect(result.metadata.truncated).toBe(true)
expect(result.output).toContain("Output truncated at")
expect(result.output).toContain("bytes")
},
})
})
test("truncates by line count when limit is specified", async () => {
await using tmp = await tmpdir({
init: async (dir) => {
const lines = Array.from({ length: 100 }, (_, i) => `line${i}`).join("\n")
await Bun.write(path.join(dir, "many-lines.txt"), lines)
},
})
await Instance.provide({
directory: tmp.path,
fn: async () => {
const read = await ReadTool.init()
const result = await read.execute({ filePath: path.join(tmp.path, "many-lines.txt"), limit: 10 }, ctx)
expect(result.metadata.truncated).toBe(true)
expect(result.output).toContain("File has more lines")
expect(result.output).toContain("line0")
expect(result.output).toContain("line9")
expect(result.output).not.toContain("line10")
},
})
})
test("does not truncate small file", async () => {
await using tmp = await tmpdir({
init: async (dir) => {
await Bun.write(path.join(dir, "small.txt"), "hello world")
},
})
await Instance.provide({
directory: tmp.path,
fn: async () => {
const read = await ReadTool.init()
const result = await read.execute({ filePath: path.join(tmp.path, "small.txt") }, ctx)
expect(result.metadata.truncated).toBe(false)
expect(result.output).toContain("End of file")
},
})
})
test("respects offset parameter", async () => {
await using tmp = await tmpdir({
init: async (dir) => {
const lines = Array.from({ length: 20 }, (_, i) => `line${i}`).join("\n")
await Bun.write(path.join(dir, "offset.txt"), lines)
},
})
await Instance.provide({
directory: tmp.path,
fn: async () => {
const read = await ReadTool.init()
const result = await read.execute({ filePath: path.join(tmp.path, "offset.txt"), offset: 10, limit: 5 }, ctx)
expect(result.output).toContain("line10")
expect(result.output).toContain("line14")
expect(result.output).not.toContain("line0")
expect(result.output).not.toContain("line15")
},
})
})
test("truncates long lines", async () => {
await using tmp = await tmpdir({
init: async (dir) => {
const longLine = "x".repeat(3000)
await Bun.write(path.join(dir, "long-line.txt"), longLine)
},
})
await Instance.provide({
directory: tmp.path,
fn: async () => {
const read = await ReadTool.init()
const result = await read.execute({ filePath: path.join(tmp.path, "long-line.txt") }, ctx)
expect(result.output).toContain("...")
expect(result.output.length).toBeLessThan(3000)
},
})
})
test("image files set truncated to false", async () => {
await using tmp = await tmpdir({
init: async (dir) => {
// 1x1 red PNG
const png = Buffer.from(
"iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8z8DwHwAFBQIAX8jx0gAAAABJRU5ErkJggg==",
"base64",
)
await Bun.write(path.join(dir, "image.png"), png)
},
})
await Instance.provide({
directory: tmp.path,
fn: async () => {
const read = await ReadTool.init()
const result = await read.execute({ filePath: path.join(tmp.path, "image.png") }, ctx)
expect(result.metadata.truncated).toBe(false)
expect(result.attachments).toBeDefined()
expect(result.attachments?.length).toBe(1)
},
})
})
test("large image files are properly attached without error", async () => {
await Instance.provide({
directory: FIXTURES_DIR,
fn: async () => {
const read = await ReadTool.init()
const result = await read.execute({ filePath: path.join(FIXTURES_DIR, "large-image.png") }, ctx)
expect(result.metadata.truncated).toBe(false)
expect(result.attachments).toBeDefined()
expect(result.attachments?.length).toBe(1)
expect(result.attachments?.[0].type).toBe("file")
},
})
})
})