diff options
3 files changed, 843 insertions, 2 deletions
diff --git a/packages/idb-bridge/src/idb-wpt-ported/idbcursor-reused.ts b/packages/idb-bridge/src/idb-wpt-ported/idbcursor-reused.ts new file mode 100644 index 000000000..44a647dc8 --- /dev/null +++ b/packages/idb-bridge/src/idb-wpt-ported/idbcursor-reused.ts @@ -0,0 +1,76 @@ +import test from "ava"; +import { createdb } from "./wptsupport"; + +test("WPT idbcursor-reused.htm", async (t) => { + await new Promise<void>((resolve, reject) => { + var db: any; + var open_rq = createdb(t); + + open_rq.onupgradeneeded = function (e: any) { + db = e.target.result; + var os = db.createObjectStore("test"); + + os.add("data", "k"); + os.add("data2", "k2"); + }; + + open_rq.onsuccess = function (e) { + var cursor: any; + var count = 0; + var rq = db.transaction("test").objectStore("test").openCursor(); + + rq.onsuccess = function (e: any) { + switch (count) { + case 0: + cursor = e.target.result; + + t.deepEqual(cursor.value, "data", "prequisite cursor.value"); + cursor.custom_cursor_value = 1; + e.target.custom_request_value = 2; + + cursor.continue(); + break; + + case 1: + t.deepEqual(cursor.value, "data2", "prequisite cursor.value"); + t.deepEqual(cursor.custom_cursor_value, 1, "custom cursor value"); + t.deepEqual( + e.target.custom_request_value, + 2, + "custom request value", + ); + + cursor.advance(1); + break; + + case 2: + t.false(!!e.target.result, "got cursor"); + t.deepEqual(cursor.custom_cursor_value, 1, "custom cursor value"); + t.deepEqual( + e.target.custom_request_value, + 2, + "custom request value", + ); + break; + } + count++; + }; + + rq.transaction.oncomplete = function () { + t.deepEqual(count, 3, "cursor callback runs"); + t.deepEqual( + rq.custom_request_value, + 2, + "variable placed on old IDBRequest", + ); + t.deepEqual( + cursor.custom_cursor_value, + 1, + "custom cursor value (transaction.complete)", + ); + resolve(); + }; + }; + }); + t.pass(); +}); diff --git a/packages/idb-bridge/src/idb-wpt-ported/idbobjectstore-rename-store.test.ts b/packages/idb-bridge/src/idb-wpt-ported/idbobjectstore-rename-store.test.ts new file mode 100644 index 000000000..0f872fa51 --- /dev/null +++ b/packages/idb-bridge/src/idb-wpt-ported/idbobjectstore-rename-store.test.ts @@ -0,0 +1,504 @@ +import test, { ExecutionContext } from "ava"; +import { BridgeIDBRequest } from ".."; +import { EventTarget, IDBDatabase } from "../idbtypes"; +import { + checkStoreContents, + checkStoreGenerator, + checkStoreIndexes, + createBooksStore, + createDatabase, + createdb, + createNotBooksStore, + migrateDatabase, +} from "./wptsupport"; + +// IndexedDB: object store renaming support +// IndexedDB object store rename in new transaction +test("WPT idbobjectstore-rename-store.html (subtest 1)", async (t) => { + await new Promise<void>((resolve, reject) => { + let bookStore: any = null; + let bookStore2: any = null; + let renamedBookStore: any = null; + let renamedBookStore2: any = null; + + return createDatabase(t, (database, transaction) => { + bookStore = createBooksStore(t, database); + }) + .then((database) => { + t.deepEqual( + database.objectStoreNames as any, + ["books"], + 'Test setup should have created a "books" object store', + ); + const transaction = database.transaction("books", "readonly"); + bookStore2 = transaction.objectStore("books"); + return checkStoreContents( + t, + bookStore2, + "The store should have the expected contents before any renaming", + ).then(() => database.close()); + }) + .then(() => + migrateDatabase(t, 2, (database, transaction) => { + renamedBookStore = transaction.objectStore("books"); + renamedBookStore.name = "renamed_books"; + + t.deepEqual( + renamedBookStore.name, + "renamed_books", + "IDBObjectStore name should change immediately after a rename", + ); + t.deepEqual( + database.objectStoreNames as any, + ["renamed_books"], + "IDBDatabase.objectStoreNames should immediately reflect the " + + "rename", + ); + t.deepEqual( + transaction.objectStoreNames as any, + ["renamed_books"], + "IDBTransaction.objectStoreNames should immediately reflect the " + + "rename", + ); + t.deepEqual( + transaction.objectStore("renamed_books"), + renamedBookStore, + "IDBTransaction.objectStore should return the renamed object " + + "store when queried using the new name immediately after the " + + "rename", + ); + t.throws( + () => transaction.objectStore("books"), + { name: "NotFoundError" }, + "IDBTransaction.objectStore should throw when queried using the " + + "renamed object store's old name immediately after the rename", + ); + }), + ) + .then((database) => { + t.deepEqual( + database.objectStoreNames as any, + ["renamed_books"], + "IDBDatabase.objectStoreNames should still reflect the rename " + + "after the versionchange transaction commits", + ); + const transaction = database.transaction("renamed_books", "readonly"); + renamedBookStore2 = transaction.objectStore("renamed_books"); + return checkStoreContents( + t, + renamedBookStore2, + "Renaming an object store should not change its records", + ).then(() => database.close()); + }) + .then(() => { + t.deepEqual( + bookStore.name, + "books", + "IDBObjectStore obtained before the rename transaction should " + + "not reflect the rename", + ); + t.deepEqual( + bookStore2.name, + "books", + "IDBObjectStore obtained before the rename transaction should " + + "not reflect the rename", + ); + t.deepEqual( + renamedBookStore.name, + "renamed_books", + "IDBObjectStore used in the rename transaction should keep " + + "reflecting the new name after the transaction is committed", + ); + t.deepEqual( + renamedBookStore2.name, + "renamed_books", + "IDBObjectStore obtained after the rename transaction should " + + "reflect the new name", + ); + }); + }); + t.pass(); +}); + +// IndexedDB: object store renaming support +// IndexedDB object store rename in the transaction where it is created +test("WPT idbobjectstore-rename-store.html (subtest 2)", async (t) => { + await new Promise<void>((resolve, reject) => { + let renamedBookStore: any = null, + renamedBookStore2: any = null; + return createDatabase(t, (database, transaction) => { + renamedBookStore = createBooksStore(t, database); + renamedBookStore.name = "renamed_books"; + + t.deepEqual( + renamedBookStore.name, + "renamed_books", + "IDBObjectStore name should change immediately after a rename", + ); + t.deepEqual( + database.objectStoreNames as any, + ["renamed_books"], + "IDBDatabase.objectStoreNames should immediately reflect the " + + "rename", + ); + t.deepEqual( + transaction.objectStoreNames as any, + ["renamed_books"], + "IDBTransaction.objectStoreNames should immediately reflect the " + + "rename", + ); + t.deepEqual( + transaction.objectStore("renamed_books"), + renamedBookStore, + "IDBTransaction.objectStore should return the renamed object " + + "store when queried using the new name immediately after the " + + "rename", + ); + t.throws( + () => transaction.objectStore("books"), + { name: "NotFoundError" }, + "IDBTransaction.objectStore should throw when queried using the " + + "renamed object store's old name immediately after the rename", + ); + }) + .then((database) => { + t.deepEqual( + database.objectStoreNames as any, + ["renamed_books"], + "IDBDatabase.objectStoreNames should still reflect the rename " + + "after the versionchange transaction commits", + ); + const transaction = database.transaction("renamed_books", "readonly"); + renamedBookStore2 = transaction.objectStore("renamed_books"); + return checkStoreContents( + t, + renamedBookStore2, + "Renaming an object store should not change its records", + ).then(() => database.close()); + }) + .then(() => { + t.deepEqual( + renamedBookStore.name, + "renamed_books", + "IDBObjectStore used in the rename transaction should keep " + + "reflecting the new name after the transaction is committed", + ); + t.deepEqual( + renamedBookStore2.name, + "renamed_books", + "IDBObjectStore obtained after the rename transaction should " + + "reflect the new name", + ); + }); + }); + t.pass(); +}); + +// Renames the 'books' store to 'renamed_books'. +// +// Returns a promise that resolves to an IndexedDB database. The caller must +// close the database. +const renameBooksStore = (testCase: ExecutionContext) => { + return migrateDatabase(testCase, 2, (database, transaction) => { + const store = transaction.objectStore("books"); + store.name = "renamed_books"; + }); +}; + +// IndexedDB: object store renaming support +// IndexedDB object store rename covers index +test("WPT idbobjectstore-rename-store.html (subtest 3)", async (t) => { + await createDatabase(t, (database, transaction) => { + createBooksStore(t, database); + }) + .then(async (database) => { + const transaction = database.transaction("books", "readonly"); + const store = transaction.objectStore("books"); + await checkStoreIndexes( + t, + store, + "The object store index should have the expected contens before " + + "any renaming", + ); + return database.close(); + }) + .then(() => renameBooksStore(t)) + .then(async (database) => { + const transaction = database.transaction("renamed_books", "readonly"); + const store = transaction.objectStore("renamed_books"); + await checkStoreIndexes( + t, + store, + "Renaming an object store should not change its indexes", + ); + return database.close(); + }); + t.pass(); +}); + +// IndexedDB: object store renaming support +// IndexedDB object store rename covers key generator +test("WPT idbobjectstore-rename-store.html (subtest 4)", async (t) => { + await createDatabase(t, (database, transaction) => { + createBooksStore(t, database); + }) + .then((database) => { + const transaction = database.transaction("books", "readwrite"); + const store = transaction.objectStore("books"); + return checkStoreGenerator( + t, + store, + 345679, + "The object store key generator should have the expected state " + + "before any renaming", + ).then(() => database.close()); + }) + .then(() => renameBooksStore(t)) + .then((database) => { + const transaction = database.transaction("renamed_books", "readwrite"); + const store = transaction.objectStore("renamed_books"); + return checkStoreGenerator( + t, + store, + 345680, + "Renaming an object store should not change the state of its key " + + "generator", + ).then(() => database.close()); + }); + t.pass(); +}); + +// IndexedDB: object store renaming support +// IndexedDB object store rename to the name of a deleted store succeeds +test("WPT idbobjectstore-rename-store.html (subtest 5)", async (t) => { + await createDatabase(t, (database, transaction) => { + createBooksStore(t, database); + createNotBooksStore(t, database); + }) + .then((database) => { + database.close(); + }) + .then(() => + migrateDatabase(t, 2, (database, transaction) => { + const store = transaction.objectStore("books"); + database.deleteObjectStore("not_books"); + store.name = "not_books"; + t.deepEqual( + database.objectStoreNames as any, + ["not_books"], + "IDBDatabase.objectStoreNames should immediately reflect the " + + "rename", + ); + }), + ) + .then((database) => { + t.deepEqual( + database.objectStoreNames as any, + ["not_books"], + "IDBDatabase.objectStoreNames should still reflect the rename " + + "after the versionchange transaction commits", + ); + const transaction = database.transaction("not_books", "readonly"); + const store = transaction.objectStore("not_books"); + return checkStoreContents( + t, + store, + "Renaming an object store should not change its records", + ).then(() => database.close()); + }); + t.pass(); +}); + +// IndexedDB: object store renaming support +test("WPT idbobjectstore-rename-store.html (IndexedDB object store swapping via renames succeeds)", async (t) => { + await createDatabase(t, (database, transaction) => { + createBooksStore(t, database); + createNotBooksStore(t, database); + }) + .then((database) => { + database.close(); + }) + .then(() => + migrateDatabase(t, 2, (database, transaction) => { + const bookStore = transaction.objectStore("books"); + const notBookStore = transaction.objectStore("not_books"); + + transaction.objectStore("books").name = "tmp"; + transaction.objectStore("not_books").name = "books"; + transaction.objectStore("tmp").name = "not_books"; + + t.deepEqual( + database.objectStoreNames as any, + ["books", "not_books"], + "IDBDatabase.objectStoreNames should immediately reflect the swap", + ); + + t.deepEqual( + transaction.objectStore("books"), + notBookStore, + 'IDBTransaction.objectStore should return the original "books" ' + + 'store when queried with "not_books" after the swap', + ); + t.deepEqual( + transaction.objectStore("not_books"), + bookStore, + "IDBTransaction.objectStore should return the original " + + '"not_books" store when queried with "books" after the swap', + ); + }), + ) + .then((database) => { + t.deepEqual( + database.objectStoreNames as any, + ["books", "not_books"], + "IDBDatabase.objectStoreNames should still reflect the swap " + + "after the versionchange transaction commits", + ); + const transaction = database.transaction("not_books", "readonly"); + const store = transaction.objectStore("not_books"); + t.deepEqual( + store.indexNames as any, + ["by_author", "by_title"], + '"not_books" index names should still reflect the swap after the ' + + "versionchange transaction commits", + ); + return checkStoreContents( + t, + store, + "Swapping two object stores should not change their records", + ).then(() => database.close()); + }); + t.pass(); +}); + +// IndexedDB: object store renaming support +test("WPT idbobjectstore-rename-store.html (IndexedDB object store rename stringifies non-string names)", async (t) => { + await createDatabase(t, (database, transaction) => { + createBooksStore(t, database); + }) + .then((database) => { + database.close(); + }) + .then(() => + migrateDatabase(t, 2, (database, transaction) => { + const store = transaction.objectStore("books"); + // @ts-expect-error + store.name = 42; + t.deepEqual( + store.name, + "42", + "IDBObjectStore name should change immediately after a " + + "rename to a number", + ); + t.deepEqual( + database.objectStoreNames as any, + ["42"], + "IDBDatabase.objectStoreNames should immediately reflect the " + + "stringifying rename", + ); + + // @ts-expect-error + store.name = true; + t.deepEqual( + store.name, + "true", + "IDBObjectStore name should change immediately after a " + + "rename to a boolean", + ); + + // @ts-expect-error + store.name = {}; + t.deepEqual( + store.name, + "[object Object]", + "IDBObjectStore name should change immediately after a " + + "rename to an object", + ); + + // @ts-expect-error + store.name = () => null; + t.deepEqual( + store.name, + "() => null", + "IDBObjectStore name should change immediately after a " + + "rename to a function", + ); + + // @ts-expect-error + store.name = undefined; + t.deepEqual( + store.name, + "undefined", + "IDBObjectStore name should change immediately after a " + + "rename to undefined", + ); + }), + ) + .then((database) => { + t.deepEqual( + database.objectStoreNames as any, + ["undefined"], + "IDBDatabase.objectStoreNames should reflect the last rename " + + "after the versionchange transaction commits", + ); + const transaction = database.transaction("undefined", "readonly"); + const store = transaction.objectStore("undefined"); + return checkStoreContents( + t, + store, + "Renaming an object store should not change its records", + ).then(() => database.close()); + }); + t.pass(); +}); + +function rename_test_macro(t: ExecutionContext, escapedName: string) { + const name = JSON.parse('"' + escapedName + '"'); + createDatabase(t, (database, transaction) => { + createBooksStore(t, database); + }) + .then((database) => { + database.close(); + }) + .then(() => + migrateDatabase(t, 2, (database, transaction) => { + const store = transaction.objectStore("books"); + + store.name = name; + t.deepEqual( + store.name, + name, + "IDBObjectStore name should change immediately after the " + "rename", + ); + t.deepEqual( + database.objectStoreNames as any, + [name], + "IDBDatabase.objectStoreNames should immediately reflect the " + + "rename", + ); + }), + ) + .then((database) => { + t.deepEqual( + database.objectStoreNames as any, + [name], + "IDBDatabase.objectStoreNames should reflect the rename " + + "after the versionchange transaction commits", + ); + const transaction = database.transaction(name, "readonly"); + const store = transaction.objectStore(name); + return checkStoreContents( + t, + store, + "Renaming an object store should not change its records", + ).then(() => database.close()); + }); +} + +for (let escapedName of ["", "\\u0000", "\\uDC00\\uD800"]) { + test( + 'IndexedDB object store can be renamed to "' + escapedName + '"', + rename_test_macro, + escapedName, + ); +} diff --git a/packages/idb-bridge/src/idb-wpt-ported/wptsupport.ts b/packages/idb-bridge/src/idb-wpt-ported/wptsupport.ts index 5716a7ae5..1c25bb8e3 100644 --- a/packages/idb-bridge/src/idb-wpt-ported/wptsupport.ts +++ b/packages/idb-bridge/src/idb-wpt-ported/wptsupport.ts @@ -1,6 +1,14 @@ -import { ExecutionContext } from "ava"; +import test, { ExecutionContext } from "ava"; import { BridgeIDBFactory } from ".."; -import { IDBOpenDBRequest } from "../idbtypes"; +import { + IDBDatabase, + IDBIndex, + IDBObjectStore, + IDBOpenDBRequest, + IDBRequest, + IDBTransaction, + IDBTransactionMode, +} from "../idbtypes"; import { MemoryBackend } from "../MemoryBackend"; import { compareKeys } from "../util/cmp"; @@ -40,3 +48,256 @@ export function assert_equals(actual: any, expected: any) { throw Error("assert_equals failed"); } } + +function makeDatabaseName(testCase: string): string { + return "db-" + testCase; +} + +// Promise that resolves with an IDBRequest's result. +// +// The promise only resolves if IDBRequest receives the "success" event. Any +// other event causes the promise to reject with an error. This is correct in +// most cases, but insufficient for indexedDB.open(), which issues +// "upgradeneded" events under normal operation. +function promiseForRequest<T = any>( + t: ExecutionContext, + request: IDBRequest<T>, +): Promise<T> { + return new Promise<T>((resolve, reject) => { + request.addEventListener("success", (evt: any) => { + resolve(evt.target.result); + }); + request.addEventListener("blocked", (evt: any) => reject(evt.target.error)); + request.addEventListener("error", (evt: any) => reject(evt.target.error)); + request.addEventListener("upgradeneeded", (evt: any) => + reject(evt.target.error), + ); + }); +} + +type MigrationCallback = ( + db: IDBDatabase, + tx: IDBTransaction, + req: IDBOpenDBRequest, +) => void; + +export async function migrateDatabase( + t: ExecutionContext, + newVersion: number, + migrationCallback: MigrationCallback, +): Promise<IDBDatabase> { + return migrateNamedDatabase( + t, + makeDatabaseName(t.title), + newVersion, + migrationCallback, + ); +} + +export async function migrateNamedDatabase( + t: ExecutionContext, + databaseName: string, + newVersion: number, + migrationCallback: MigrationCallback, +): Promise<IDBDatabase> { + return new Promise<IDBDatabase>((resolve, reject) => { + const request = self.indexedDB.open(databaseName, newVersion); + request.onupgradeneeded = (event: any) => { + const database = event.target.result; + const transaction = event.target.transaction; + let shouldBeAborted = false; + let requestEventPromise: any = null; + + // We wrap IDBTransaction.abort so we can set up the correct event + // listeners and expectations if the test chooses to abort the + // versionchange transaction. + const transactionAbort = transaction.abort.bind(transaction); + transaction.abort = () => { + transaction._willBeAborted(); + transactionAbort(); + }; + transaction._willBeAborted = () => { + requestEventPromise = new Promise((resolve, reject) => { + request.onerror = (event: any) => { + event.preventDefault(); + resolve(event.target.error); + }; + request.onsuccess = () => + reject( + new Error( + "indexedDB.open should not succeed for an aborted " + + "versionchange transaction", + ), + ); + }); + shouldBeAborted = true; + }; + + // If migration callback returns a promise, we'll wait for it to resolve. + // This simplifies some tests. + const callbackResult = migrationCallback(database, transaction, request); + if (!shouldBeAborted) { + request.onerror = null; + request.onsuccess = null; + requestEventPromise = promiseForRequest(t, request); + } + + // requestEventPromise needs to be the last promise in the chain, because + // we want the event that it resolves to. + resolve(Promise.resolve(callbackResult).then(() => requestEventPromise)); + }; + request.onerror = (event: any) => reject(event.target.error); + request.onsuccess = () => { + const database = request.result; + t.teardown(() => database.close()); + reject( + new Error( + "indexedDB.open should not succeed without creating a " + + "versionchange transaction", + ), + ); + }; + }); +} + +export async function createDatabase( + t: ExecutionContext, + setupCallback: MigrationCallback, +): Promise<IDBDatabase> { + const databaseName = makeDatabaseName(t.title); + const request = self.indexedDB.deleteDatabase(databaseName); + return migrateNamedDatabase(t, databaseName, 1, setupCallback); +} + +// The data in the 'books' object store records in the first example of the +// IndexedDB specification. +const BOOKS_RECORD_DATA = [ + { title: "Quarry Memories", author: "Fred", isbn: 123456 }, + { title: "Water Buffaloes", author: "Fred", isbn: 234567 }, + { title: "Bedrock Nights", author: "Barney", isbn: 345678 }, +]; + +// Creates a 'books' object store whose contents closely resembles the first +// example in the IndexedDB specification. +export const createBooksStore = ( + testCase: ExecutionContext, + database: IDBDatabase, +) => { + const store = database.createObjectStore("books", { + keyPath: "isbn", + autoIncrement: true, + }); + store.createIndex("by_author", "author"); + store.createIndex("by_title", "title", { unique: true }); + for (const record of BOOKS_RECORD_DATA) store.put(record); + return store; +}; + +// Verifies that an object store's contents matches the contents used to create +// the books store in the test database's version 1. +// +// The errorMessage is used if the assertions fail. It can state that the +// IndexedDB implementation being tested is incorrect, or that the testing code +// is using it incorrectly. +export async function checkStoreContents( + testCase: ExecutionContext, + store: IDBObjectStore, + errorMessage: string, +) { + const request = store.get(123456); + const result = await promiseForRequest(testCase, request); + testCase.deepEqual(result.isbn, BOOKS_RECORD_DATA[0].isbn, errorMessage); + testCase.deepEqual(result.author, BOOKS_RECORD_DATA[0].author, errorMessage); + testCase.deepEqual(result.title, BOOKS_RECORD_DATA[0].title, errorMessage); +} + +// Verifies that an object store's indexes match the indexes used to create the +// books store in the test database's version 1. +// +// The errorMessage is used if the assertions fail. It can state that the +// IndexedDB implementation being tested is incorrect, or that the testing code +// is using it incorrectly. +export function checkStoreIndexes( + testCase: ExecutionContext, + store: IDBObjectStore, + errorMessage: string, +) { + testCase.deepEqual( + store.indexNames as any, + ["by_author", "by_title"], + errorMessage, + ); + const authorIndex = store.index("by_author"); + const titleIndex = store.index("by_title"); + return Promise.all([ + checkAuthorIndexContents(testCase, authorIndex, errorMessage), + checkTitleIndexContents(testCase, titleIndex, errorMessage), + ]); +} + +// Verifies that index matches the 'by_author' index used to create the +// by_author books store in the test database's version 1. +// +// The errorMessage is used if the assertions fail. It can state that the +// IndexedDB implementation being tested is incorrect, or that the testing code +// is using it incorrectly. +async function checkAuthorIndexContents( + testCase: ExecutionContext, + index: IDBIndex, + errorMessage: string, +) { + const request = index.get(BOOKS_RECORD_DATA[2].author); + const result = await promiseForRequest(testCase, request); + testCase.deepEqual(result.isbn, BOOKS_RECORD_DATA[2].isbn, errorMessage); + testCase.deepEqual(result.title, BOOKS_RECORD_DATA[2].title, errorMessage); +} + +// Verifies that an index matches the 'by_title' index used to create the books +// store in the test database's version 1. +// +// The errorMessage is used if the assertions fail. It can state that the +// IndexedDB implementation being tested is incorrect, or that the testing code +// is using it incorrectly. +async function checkTitleIndexContents( + testCase: ExecutionContext, + index: IDBIndex, + errorMessage: string, +) { + const request = index.get(BOOKS_RECORD_DATA[2].title); + const result = await promiseForRequest(testCase, request); + testCase.deepEqual(result.isbn, BOOKS_RECORD_DATA[2].isbn, errorMessage); + testCase.deepEqual(result.author, BOOKS_RECORD_DATA[2].author, errorMessage); +} + +// Verifies that an object store's key generator is in the same state as the +// key generator created for the books store in the test database's version 1. +// +// The errorMessage is used if the assertions fail. It can state that the +// IndexedDB implementation being tested is incorrect, or that the testing code +// is using it incorrectly. +export function checkStoreGenerator( + testCase: ExecutionContext, + store: IDBObjectStore, + expectedKey: any, + errorMessage: string, +) { + const request = store.put({ + title: "Bedrock Nights " + expectedKey, + author: "Barney", + }); + return promiseForRequest(testCase, request).then((result) => { + testCase.deepEqual(result, expectedKey, errorMessage); + }); +} + +// Creates a 'not_books' object store used to test renaming into existing or +// deleted store names. +export function createNotBooksStore( + testCase: ExecutionContext, + database: IDBDatabase, +) { + const store = database.createObjectStore("not_books"); + store.createIndex("not_by_author", "author"); + store.createIndex("not_by_title", "title", { unique: true }); + return store; +} |