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document.test.ts
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document.test.ts
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import { collection, doc, getDocs, orderBy, query } from "firebase/firestore";
import { autorun } from "mobx";
import { ObservableDocument, SourceType } from "../document";
import { first, last } from "../utils";
import {
clearDataset,
collectionData,
collectionName,
initializeDataset,
TestDocumentA,
} from "./helpers/dataset";
import { db } from "./helpers/firebase-web-client";
import { waitNumSeconds } from "./helpers/wait-num-seconds";
describe("ObservableDocument", () => {
/**
* Check if transpiler is set up correctly. See
* https://mobx.js.org/installation.html
*/
// if (
// !new (class {
// x: any;
// })().hasOwnProperty("x")
// ) {
// throw new Error("Transpiler is not configured correctly");
// }
// Try to solve this https://github.com/facebook/jest/issues/7287
beforeAll(() => {
return initializeDataset();
});
afterAll(() => {
return clearDataset();
});
it("Should initialize correctly", () => {
const document = new ObservableDocument();
expect(document.id).toBe("__no_id");
expect(document.isLoading).toBe(false);
expect(document.hasData).toBe(false);
expect(() => document.data).toThrow();
expect(() => document.document).toThrow();
});
it("Can construct a document from ref", async () => {
const snapshot = await getDocs(
query(collection(db, collectionName), orderBy("count", "asc")),
);
const document = new ObservableDocument(
first(snapshot.docs)?.ref as SourceType | undefined,
);
expect(document.isLoading).toBe(true);
expect(document.hasData).toBe(false);
await document.ready().then((doc) => console.log(doc));
expect(document.isLoading).toBe(false);
expect(document.hasData).toBe(true);
expect(document.data).toEqual(first(collectionData));
});
it("Can take doc path and observe without calling ready", async () => {
const snapshot = await getDocs(
query(collection(db, collectionName), orderBy("count", "asc")),
);
const docPath = first(snapshot.docs)?.ref.path;
expect(docPath).toBeDefined();
const document = new ObservableDocument(doc(db, docPath!));
expect(document.isLoading).toBe(true);
expect(document.hasData).toBe(false);
const disposeListeners = autorun(() => {
console.log("isLoading", document.isLoading);
});
await waitNumSeconds(2);
expect(document.isLoading).toBe(false);
expect(document.hasData).toBe(true);
expect(document.data).toEqual(first(collectionData));
disposeListeners();
});
it("Can attach to a document id", async () => {
const snapshot = await getDocs(
query(collection(db, collectionName), orderBy("count", "asc")),
);
const document = new ObservableDocument(collection(db, collectionName));
expect(document.isLoading).toBe(false);
document.attachTo(first(snapshot.docs)?.id);
expect(document.isLoading).toBe(true);
expect(document.hasData).toBe(false);
await document.ready();
expect(document.isLoading).toBe(false);
expect(document.hasData).toBe(true);
expect(document.data).toEqual(first(collectionData));
});
it("Performs no operation when re-attaching to the same id", async () => {
const snapshot = await getDocs(
query(collection(db, collectionName), orderBy("count", "asc")),
);
const document = new ObservableDocument(collection(db, collectionName));
expect(document.isLoading).toBe(false);
document.attachTo(first(snapshot.docs)?.id);
expect(document.isLoading).toBe(true);
expect(document.hasData).toBe(false);
await document.ready();
expect(document.isLoading).toBe(false);
expect(document.hasData).toBe(true);
expect(document.data).toEqual(first(collectionData));
document.attachTo(first(snapshot.docs)?.id);
expect(document.isLoading).toBe(false);
expect(document.hasData).toBe(true);
expect(document.data).toEqual(first(collectionData));
});
it("Should return data on ready without listeners", async () => {
const snapshot = await getDocs(
query(collection(db, collectionName), orderBy("count", "asc")),
);
const document = new ObservableDocument<TestDocumentA>(
collection(db, collectionName),
{ debug: false },
);
expect(document.isLoading).toBe(false);
expect(document.hasData).toBe(false);
document.attachTo(first(snapshot.docs)?.id);
expect(document.isLoading).toBe(true);
expect(document.hasData).toBe(false);
const data = await document.ready();
// consoleInspect('data', data)
expect(data).toEqual(first(collectionData));
});
it("Should return data on ready with listeners", async () => {
const snapshot = await getDocs(
query(collection(db, collectionName), orderBy("count", "asc")),
);
const document = new ObservableDocument<TestDocumentA>(
collection(db, collectionName),
{ debug: false },
);
expect(document.isLoading).toBe(false);
expect(document.hasData).toBe(false);
document.attachTo(first(snapshot.docs)?.id);
expect(document.isLoading).toBe(true);
expect(document.hasData).toBe(false);
const disposeListeners = autorun(() => {
console.log("isLoading", document.isLoading);
});
document
.ready()
.then((data) => {
expect(data).toEqual(first(collectionData));
})
.catch((err) => console.error(err));
const data = await document.ready();
expect(data).toEqual(first(collectionData));
disposeListeners();
});
it("Should resolve ready after changing documents", async () => {
const snapshot = await getDocs(
query(collection(db, collectionName), orderBy("count", "asc")),
);
const document = new ObservableDocument<TestDocumentA>(
collection(db, collectionName),
{ debug: false },
);
expect(document.isLoading).toBe(false);
expect(document.hasData).toBe(false);
/**
* Set up listeners because it changes the behavior for ready()
*/
const disposeListeners = autorun(() => {
console.log("isLoading", document.isLoading);
});
{
document.attachTo(first(snapshot.docs)?.id);
expect(document.isLoading).toBe(true);
expect(document.hasData).toBe(false);
const data = await document.ready();
expect(data).toEqual(first(collectionData));
expect(document.isLoading).toBe(false);
expect(document.hasData).toBe(true);
}
{
document.attachTo(last(snapshot.docs)?.id);
expect(document.isLoading).toBe(true);
expect(document.hasData).toBe(false);
const data = await document.ready();
expect(data).toEqual(last(collectionData));
expect(document.isLoading).toBe(false);
expect(document.hasData).toBe(true);
}
disposeListeners();
});
it("Returns undefined data on ready when not found", async () => {
const document = new ObservableDocument<TestDocumentA>(
collection(db, collectionName),
);
document.attachTo("__non_existing_id");
await document.ready().then((data) => {
expect(data).toBeUndefined();
});
});
it("Should have a fallback id", async () => {
const document = new ObservableDocument<TestDocumentA>(
collection(db, collectionName),
{ debug: false },
);
expect(document.id).toBe("__no_id");
document.attachTo("__non_existing_id");
await document.ready().then((doc) => {
expect(doc).toBe(undefined);
expect(document.id).toBe("__non_existing_id");
});
document.attachTo();
await document.ready().then((doc) => {
expect(doc).toBe(undefined);
expect(document.id).toBe("__no_id");
});
});
it("Should return the same data on ready multiple times", async () => {
const snapshot = await getDocs(
query(collection(db, collectionName), orderBy("count", "asc")),
);
const document = new ObservableDocument<TestDocumentA>(
doc(db, collectionName, first(snapshot.docs)?.id || "__no_document"),
{ debug: false },
);
const dataA = await document.ready();
const dataB = await document.ready();
expect(dataA).toStrictEqual(dataB);
});
it("Should fire onData before ready resolves", async () => {
const snapshot = await getDocs(
query(collection(db, collectionName), orderBy("count", "asc")),
);
const document = new ObservableDocument<TestDocumentA>(
collection(db, collectionName),
);
{
document.attachTo(first(snapshot.docs)?.id);
expect(document.isLoading).toBe(true);
expect(document.hasData).toBe(false);
let receivedData = false;
document.onData((data) => {
receivedData = true;
expect(data).toEqual(first(collectionData));
});
document
.ready()
.then(() => {
expect(receivedData).toBe(true);
})
.catch((err) => console.log(err));
}
});
});