73 lines
2.1 KiB
TypeScript
73 lines
2.1 KiB
TypeScript
import { KV, KvKey } from "$sb/types.ts";
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import { assertEquals } from "../../test_deps.ts";
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import { BatchKVStore, SimpleSearchEngine } from "./engine.ts";
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class InMemoryBatchKVStore implements BatchKVStore {
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private store = new Map<string, any>();
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query({ prefix }: { prefix: KvKey }): Promise<KV[]> {
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const results: KV[] = [];
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entries:
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for (const [key, value] of this.store.entries()) {
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const parsedKey: string[] = JSON.parse(key);
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for (let i = 0; i < prefix.length; i++) {
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if (prefix[i] !== parsedKey[i]) {
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continue entries;
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}
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}
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results.push({ key: parsedKey, value });
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}
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return Promise.resolve(results);
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}
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batchSet(kvs: KV[]): Promise<void> {
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for (const { key, value } of kvs) {
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this.store.set(JSON.stringify(key), value);
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}
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return Promise.resolve();
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}
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batchDel(keys: KvKey[]): Promise<void> {
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for (const key of keys) {
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this.store.delete(JSON.stringify(key));
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}
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return Promise.resolve();
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}
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}
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Deno.test("Test full text search", async () => {
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const engine = new SimpleSearchEngine(new InMemoryBatchKVStore());
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await engine.indexDocument({ id: "1", text: "The quick brown fox" });
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await engine.indexDocument({ id: "2", text: "jumps over the lazy dogs" });
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await engine.indexDocument({
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id: "3",
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text: "Hello world, jumping jump jumps",
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});
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await engine.indexDocument({ id: "4", text: "TypeScript is awesome" });
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await engine.indexDocument({ id: "5", text: "The brown dogs jumps zęf" });
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console.log(engine.index);
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const results = await engine.search("Brown fox");
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console.log(results);
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assertEquals(results.length, 2);
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assertEquals(results[0].id, "1");
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assertEquals(results[0].score, 2);
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assertEquals(results[1].id, "5");
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assertEquals(results[1].score, 1);
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const results2 = await engine.search("jump");
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console.log(results2);
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assertEquals(results2.length, 3);
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await engine.deleteDocument("3");
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const results3 = await engine.search("jump");
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console.log(results3);
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assertEquals(results3.length, 2);
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const results4 = await engine.search("zęf");
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console.log(results4);
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assertEquals(results4.length, 1);
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});
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