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welshman/packages/domain/__tests__/Comment.test.ts
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TypeScript

import {describe, it, expect} from "vitest"
import {makeSecret, COMMENT, NOTE} from "@welshman/util"
import type {TrustedEvent} from "@welshman/util"
import {Nip01Signer} from "@welshman/signer"
import {Comment, CommentBuilder} from "../src/kinds/Comment"
const signer = new Nip01Signer(makeSecret())
const pubkey = "ee".repeat(32)
const rootId = "aa".repeat(32)
const rootPubkey = "bb".repeat(32)
const parentId = "cc".repeat(32)
const parentPubkey = "dd".repeat(32)
const makeEvent = (overrides: Partial<TrustedEvent> = {}): TrustedEvent =>
({
id: "ff".repeat(32),
pubkey,
created_at: 0,
kind: COMMENT,
tags: [],
content: "",
sig: "00".repeat(64),
...overrides,
}) as TrustedEvent
describe("Comment", () => {
it("reads root and parent references", async () => {
const event = makeEvent({
content: "nice thread",
tags: [
["E", rootId],
["K", "11"],
["P", rootPubkey],
["e", parentId],
["k", "1111"],
["p", parentPubkey],
["alt", "x"],
],
})
const comment = await Comment.fromEvent(event)
expect(comment.content()).toBe("nice thread")
expect(comment.rootId()).toBe(rootId)
expect(comment.rootKind()).toBe("11")
expect(comment.rootPubkey()).toBe(rootPubkey)
expect(comment.parentId()).toBe(parentId)
expect(comment.parentKind()).toBe("1111")
expect(comment.parentPubkey()).toBe(parentPubkey)
expect(comment.root()).toEqual({id: rootId, address: undefined, kind: "11", pubkey: rootPubkey})
expect(comment.parent()).toEqual({
id: parentId,
address: undefined,
kind: "1111",
pubkey: parentPubkey,
})
})
it("round-trips with no duplicate reference tags", async () => {
const event = makeEvent({
content: "nice thread",
tags: [
["E", rootId],
["K", "11"],
["P", rootPubkey],
["e", parentId],
["k", "1111"],
["p", parentPubkey],
["alt", "x"],
],
})
const tmpl = await (await Comment.fromEvent(event)).builder().toTemplate(signer)
// Each represented reference key emits exactly once.
for (const key of ["E", "K", "P", "e", "k", "p"]) {
expect(tmpl.tags.filter(t => t[0] === key).length).toBe(1)
}
expect(tmpl.tags).toContainEqual(["E", rootId])
expect(tmpl.tags).toContainEqual(["e", parentId])
// Unknown passthrough tag survives.
expect(tmpl.tags).toContainEqual(["alt", "x"])
expect(tmpl.content).toBe("nice thread")
})
it("builds references from full events", async () => {
const root = makeEvent({id: rootId, pubkey: rootPubkey, kind: 11})
const parent = makeEvent({id: parentId, pubkey: parentPubkey, kind: 1111})
const tmpl = await new CommentBuilder()
.setContent("reply")
.setRootFromEvent(root)
.setParentFromEvent(parent)
.toTemplate(signer)
expect(tmpl.kind).toBe(COMMENT)
expect(tmpl.tags).toContainEqual(["E", rootId])
expect(tmpl.tags).toContainEqual(["K", "11"])
expect(tmpl.tags).toContainEqual(["P", rootPubkey])
expect(tmpl.tags).toContainEqual(["e", parentId])
expect(tmpl.tags).toContainEqual(["k", "1111"])
expect(tmpl.tags).toContainEqual(["p", parentPubkey])
expect(tmpl.content).toBe("reply")
})
it("throws on the wrong kind", async () => {
await expect(Comment.fromEvent(makeEvent({kind: NOTE}))).rejects.toThrow()
})
})