feat: add snjs package

packages/snjs/mocha/payload_manager.test.js

@@ -0,0 +1,89 @@
+/* eslint-disable no-unused-expressions */
+/* eslint-disable no-undef */
+import * as Factory from './lib/factory.js'
+chai.use(chaiAsPromised)
+const expect = chai.expect
+
+describe('payload manager', () => {
+  beforeEach(async function () {
+    this.payloadManager = new PayloadManager()
+    this.createNotePayload = async () => {
+      return new DecryptedPayload({
+        uuid: Factory.generateUuidish(),
+        content_type: ContentType.Note,
+        content: {
+          title: 'hello',
+          text: 'world',
+        },
+      })
+    }
+  })
+
+  it('emit payload should create local record', async function () {
+    const payload = await this.createNotePayload()
+    await this.payloadManager.emitPayload(payload)
+
+    expect(this.payloadManager.collection.find(payload.uuid)).to.be.ok
+  })
+
+  it('merge payloads onto master', async function () {
+    const payload = await this.createNotePayload()
+    await this.payloadManager.emitPayload(payload)
+
+    const newTitle = `${Math.random()}`
+    const changedPayload = payload.copy({
+      content: {
+        ...payload.content,
+        title: newTitle,
+      },
+    })
+    const { changed, inserted } = await this.payloadManager.applyPayloads([changedPayload])
+    expect(changed.length).to.equal(1)
+    expect(inserted.length).to.equal(0)
+    expect(this.payloadManager.collection.find(payload.uuid).content.title).to.equal(newTitle)
+  })
+
+  it('insertion observer', async function () {
+    const observations = []
+    this.payloadManager.addObserver(ContentType.Any, ({ inserted }) => {
+      observations.push({ inserted })
+    })
+    const payload = await this.createNotePayload()
+    await this.payloadManager.emitPayload(payload)
+
+    expect(observations.length).equal(1)
+    expect(observations[0].inserted[0]).equal(payload)
+  })
+
+  it('change observer', async function () {
+    const observations = []
+    this.payloadManager.addObserver(ContentType.Any, ({ changed }) => {
+      if (changed.length > 0) {
+        observations.push({ changed })
+      }
+    })
+    const payload = await this.createNotePayload()
+    await this.payloadManager.emitPayload(payload)
+    await this.payloadManager.emitPayload(
+      payload.copy({
+        content: {
+          ...payload.content,
+          title: 'new title',
+        },
+      }),
+    )
+
+    expect(observations.length).equal(1)
+    expect(observations[0].changed[0].uuid).equal(payload.uuid)
+  })
+
+  it('reset state', async function () {
+    this.payloadManager.addObserver(ContentType.Any, ({}) => {})
+    const payload = await this.createNotePayload()
+    await this.payloadManager.emitPayload(payload)
+    await this.payloadManager.resetState()
+
+    expect(this.payloadManager.collection.all().length).to.equal(0)
+    expect(this.payloadManager.changeObservers.length).equal(1)
+  })
+})