MockDBProviderclass

new MockDBProvider<I, T>()

Return
`MockDBProvider<I, T>`	In-memory database provider that records every operation to its calls log, for testing.

Property	Type
`.calls`	`MockDBCall[]`	The log of operations performed through this provider, in the order they happened. Defaults to `[]` readonly

In-memory database provider that records every operation to its calls log, for testing.

Extends MemoryDBProvider, so it stores data normally, then appends a MockDBCall entry (including the result) for each call.
Assert against calls in tests to check which operations ran and with what arguments.

A test provider that records every call. MockDBProvider extends MemoryDBProvider — so it behaves like a real in-memory database — and additionally captures every operation in a .calls array so tests can assert exactly what happened.

Usage

import { MockDBProvider } from "shelving/db";

const mock = new MockDBProvider();
await mock.addItem(POSTS, { title: "Hello", body: "", published: false });

console.log(mock.calls[0]);
// { type: "addItem", collection: "posts", data: { … }, result: <id> }

Examples

const provider = new MockDBProvider();
 await provider.addItem(users, { name: "Dave" });
 provider.calls; // [{ type: "addItem", collection: "users", data: { name: "Dave" }, result: 123 }]