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import { Effect, FileSystem } from "effect"
import { LayerNodePlatform } from "@opencode-ai/core/effect/app-node-platform"
import { LayerNode } from "@opencode-ai/core/effect/layer-node"
import { FSUtil } from "@opencode-ai/core/fs-util"
import { testEffect } from "../lib/effect"
import path from "path"
const live = LayerNode.compile(LayerNode.group([FSUtil.node, LayerNodePlatform.filesystem]))
const { effect: it } = testEffect(live)
describe("FSUtil", () => {
describe("isDir", () => {
it(
"returns true for directories",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
expect(yield* fs.isDir(tmp)).toBe(true)
}),
)
it(
"returns false for files",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
const file = path.join(tmp, "test.txt")
yield* filesys.writeFileString(file, "hello")
expect(yield* fs.isDir(file)).toBe(false)
}),
)
it(
"returns false for non-existent paths",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
expect(yield* fs.isDir("/tmp/nonexistent-" + Math.random())).toBe(false)
}),
)
})
describe("isFile", () => {
it(
"returns true for files",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
const file = path.join(tmp, "test.txt")
yield* filesys.writeFileString(file, "hello")
expect(yield* fs.isFile(file)).toBe(true)
}),
)
it(
"returns false for directories",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
expect(yield* fs.isFile(tmp)).toBe(false)
}),
)
})
describe("readFileStringSafe", () => {
it(
"returns file contents when file exists",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
const file = path.join(tmp, "exists.txt")
yield* filesys.writeFileString(file, "hello")
const result = yield* fs.readFileStringSafe(file)
expect(result).toBe("hello")
}),
)
it(
"returns undefined for missing file (NotFound)",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
const result = yield* fs.readFileStringSafe(path.join(tmp, "does-not-exist.txt"))
expect(result).toBeUndefined()
}),
)
})
describe("readJson / writeJson", () => {
it(
"round-trips JSON data",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
const file = path.join(tmp, "data.json")
const data = { name: "test", count: 42, nested: { ok: true } }
yield* fs.writeJson(file, data)
const result = yield* fs.readJson(file)
expect(result).toEqual(data)
}),
)
it(
"fails invalid JSON through the error channel",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
const file = path.join(tmp, "broken.json")
yield* filesys.writeFileString(file, "{")
const result = yield* fs.readJson(file).pipe(Effect.catch((error) => Effect.succeed(error)))
expect(result).toHaveProperty("_tag", "FileSystemError")
}),
)
})
describe("ensureDir", () => {
it(
"creates nested directories",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
const nested = path.join(tmp, "a", "b", "c")
yield* fs.ensureDir(nested)
const info = yield* filesys.stat(nested)
expect(info.type).toBe("Directory")
}),
)
it(
"is idempotent",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
const dir = path.join(tmp, "existing")
yield* filesys.makeDirectory(dir)
yield* fs.ensureDir(dir)
const info = yield* filesys.stat(dir)
expect(info.type).toBe("Directory")
}),
)
})
describe("writeWithDirs", () => {
it(
"creates parent directories if missing",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
const file = path.join(tmp, "deep", "nested", "file.txt")
yield* fs.writeWithDirs(file, "hello")
expect(yield* filesys.readFileString(file)).toBe("hello")
}),
)
it(
"writes directly when parent exists",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
const file = path.join(tmp, "direct.txt")
yield* fs.writeWithDirs(file, "world")
expect(yield* filesys.readFileString(file)).toBe("world")
}),
)
it(
"writes Uint8Array content",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
const file = path.join(tmp, "binary.bin")
const content = new Uint8Array([0x00, 0x01, 0x02, 0x03])
yield* fs.writeWithDirs(file, content)
const result = yield* filesys.readFile(file)
expect(new Uint8Array(result)).toEqual(content)
}),
)
})
describe("findUp", () => {
it(
"finds target in start directory",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
yield* filesys.writeFileString(path.join(tmp, "target.txt"), "found")
const result = yield* fs.findUp("target.txt", tmp)
expect(result).toEqual([path.join(tmp, "target.txt")])
}),
)
it(
"finds target in parent directories",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
yield* filesys.writeFileString(path.join(tmp, "marker"), "root")
const child = path.join(tmp, "a", "b")
yield* filesys.makeDirectory(child, { recursive: true })
const result = yield* fs.findUp("marker", child, tmp)
expect(result).toEqual([path.join(tmp, "marker")])
}),
)
it(
"returns empty array when not found",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
const result = yield* fs.findUp("nonexistent", tmp, tmp)
expect(result).toEqual([])
}),
)
})
describe("up", () => {
it(
"finds multiple targets walking up",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
yield* filesys.writeFileString(path.join(tmp, "a.txt"), "a")
yield* filesys.writeFileString(path.join(tmp, "b.txt"), "b")
const child = path.join(tmp, "sub")
yield* filesys.makeDirectory(child)
yield* filesys.writeFileString(path.join(child, "a.txt"), "a-child")
const result = yield* fs.up({ targets: ["a.txt", "b.txt"], start: child, stop: tmp })
expect(result).toContain(path.join(child, "a.txt"))
expect(result).toContain(path.join(tmp, "a.txt"))
expect(result).toContain(path.join(tmp, "b.txt"))
}),
)
})
describe("glob", () => {
it(
"finds files matching pattern",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
yield* filesys.writeFileString(path.join(tmp, "a.ts"), "a")
yield* filesys.writeFileString(path.join(tmp, "b.ts"), "b")
yield* filesys.writeFileString(path.join(tmp, "c.json"), "c")
const result = yield* fs.glob("*.ts", { cwd: tmp })
expect(result.sort()).toEqual(["a.ts", "b.ts"])
}),
)
it(
"supports absolute paths",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
yield* filesys.writeFileString(path.join(tmp, "file.txt"), "hello")
const result = yield* fs.glob("*.txt", { cwd: tmp, absolute: true })
expect(result).toEqual([path.join(tmp, "file.txt")])
}),
)
})
describe("globMatch", () => {
it(
"matches patterns",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
expect(fs.globMatch("*.ts", "foo.ts")).toBe(true)
expect(fs.globMatch("*.ts", "foo.json")).toBe(false)
expect(fs.globMatch("src/**", "src/a/b.ts")).toBe(true)
}),
)
})
describe("globUp", () => {
it(
"finds files walking up directories",
Effect.gen(function* () {
const fs = yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
yield* filesys.writeFileString(path.join(tmp, "root.md"), "root")
const child = path.join(tmp, "a", "b")
yield* filesys.makeDirectory(child, { recursive: true })
yield* filesys.writeFileString(path.join(child, "leaf.md"), "leaf")
const result = yield* fs.globUp("*.md", child, tmp)
expect(result).toContain(path.join(child, "leaf.md"))
expect(result).toContain(path.join(tmp, "root.md"))
}),
)
})
describe("built-in passthrough", () => {
it(
"exists works",
Effect.gen(function* () {
yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
const file = path.join(tmp, "exists.txt")
yield* filesys.writeFileString(file, "yes")
expect(yield* filesys.exists(file)).toBe(true)
expect(yield* filesys.exists(file + ".nope")).toBe(false)
}),
)
it(
"remove works",
Effect.gen(function* () {
yield* FSUtil.Service
const filesys = yield* FileSystem.FileSystem
const tmp = yield* filesys.makeTempDirectoryScoped()
const file = path.join(tmp, "delete-me.txt")
yield* filesys.writeFileString(file, "bye")
yield* filesys.remove(file)
expect(yield* filesys.exists(file)).toBe(false)
}),
)
})
describe("pure helpers", () => {
test("mimeType returns correct types", () => {
expect(FSUtil.mimeType("file.json")).toBe("application/json")
expect(FSUtil.mimeType("image.png")).toBe("image/png")
expect(FSUtil.mimeType("unknown.qzx")).toBe("application/octet-stream")
})
test("contains checks path containment", () => {
expect(FSUtil.contains("/a/b", "/a/b/c")).toBe(true)
expect(FSUtil.contains("/a/b", "/a/b")).toBe(true)
expect(FSUtil.contains("/a/b", "/a/c")).toBe(false)
expect(FSUtil.contains("/a/b", "/a/bad")).toBe(false)
if (process.platform === "win32") expect(FSUtil.contains("C:\\a", "D:\\b")).toBe(false)
})
test("overlaps detects overlapping paths", () => {
expect(FSUtil.overlaps("/a/b", "/a/b/c")).toBe(true)
expect(FSUtil.overlaps("/a/b/c", "/a/b")).toBe(true)
expect(FSUtil.overlaps("/a", "/b")).toBe(false)
expect(FSUtil.overlaps("/a/b", "/a/bad")).toBe(false)
if (process.platform === "win32") expect(FSUtil.overlaps("C:\\a", "D:\\b")).toBe(false)
})
})
})
|