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denoland-deno/cli/tests/unit/kv_test.ts
Luca Casonato 74e39a927c
feat(unstable): kv.watch() (#21147)
This commit adds support for a new `kv.watch()` method that allows
watching for changes to a key-value pair. This is useful for cases
where you want to be notified when a key-value pair changes, but
don't want to have to poll for changes.

---------

Co-authored-by: losfair <zhy20000919@hotmail.com>
2023-12-05 21:21:46 +08:00

2183 lines
58 KiB
TypeScript

// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
import {
assert,
assertEquals,
AssertionError,
assertNotEquals,
assertRejects,
assertThrows,
} from "./test_util.ts";
import { assertType, IsExact } from "../../../test_util/std/testing/types.ts";
const sleep = (time: number) => new Promise((r) => setTimeout(r, time));
let isCI: boolean;
try {
isCI = Deno.env.get("CI") !== undefined;
} catch {
isCI = true;
}
// Defined in test_util/src/lib.rs
Deno.env.set("DENO_KV_ACCESS_TOKEN", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
Deno.test({
name: "openKv :memory: no permissions",
permissions: {},
async fn() {
const db = await Deno.openKv(":memory:");
await db.close();
},
});
Deno.test({
name: "openKv invalid filenames",
permissions: {},
async fn() {
await assertRejects(
async () => await Deno.openKv(""),
TypeError,
"Filename cannot be empty",
);
await assertRejects(
async () => await Deno.openKv(":foo"),
TypeError,
"Filename cannot start with ':' unless prefixed with './'",
);
},
});
function dbTest(name: string, fn: (db: Deno.Kv) => Promise<void> | void) {
Deno.test({
name,
// https://github.com/denoland/deno/issues/18363
ignore: Deno.build.os === "darwin" && isCI,
async fn() {
const db: Deno.Kv = await Deno.openKv(":memory:");
try {
await fn(db);
} finally {
db.close();
}
},
});
}
function queueTest(name: string, fn: (db: Deno.Kv) => Promise<void>) {
Deno.test({
name,
// https://github.com/denoland/deno/issues/18363
ignore: Deno.build.os === "darwin" && isCI,
async fn() {
const db: Deno.Kv = await Deno.openKv(":memory:");
await fn(db);
},
});
}
const ZERO_VERSIONSTAMP = "00000000000000000000";
dbTest("basic read-write-delete and versionstamps", async (db) => {
const result1 = await db.get(["a"]);
assertEquals(result1.key, ["a"]);
assertEquals(result1.value, null);
assertEquals(result1.versionstamp, null);
const setRes = await db.set(["a"], "b");
assert(setRes.ok);
assert(setRes.versionstamp > ZERO_VERSIONSTAMP);
const result2 = await db.get(["a"]);
assertEquals(result2.key, ["a"]);
assertEquals(result2.value, "b");
assertEquals(result2.versionstamp, setRes.versionstamp);
const setRes2 = await db.set(["a"], "c");
assert(setRes2.ok);
assert(setRes2.versionstamp > setRes.versionstamp);
const result3 = await db.get(["a"]);
assertEquals(result3.key, ["a"]);
assertEquals(result3.value, "c");
assertEquals(result3.versionstamp, setRes2.versionstamp);
await db.delete(["a"]);
const result4 = await db.get(["a"]);
assertEquals(result4.key, ["a"]);
assertEquals(result4.value, null);
assertEquals(result4.versionstamp, null);
});
const VALUE_CASES = [
{ name: "string", value: "hello" },
{ name: "number", value: 42 },
{ name: "bigint", value: 42n },
{ name: "boolean", value: true },
{ name: "null", value: null },
{ name: "undefined", value: undefined },
{ name: "Date", value: new Date(0) },
{ name: "Uint8Array", value: new Uint8Array([1, 2, 3]) },
{ name: "ArrayBuffer", value: new ArrayBuffer(3) },
{ name: "array", value: [1, 2, 3] },
{ name: "object", value: { a: 1, b: 2 } },
{ name: "nested array", value: [[1, 2], [3, 4]] },
{ name: "nested object", value: { a: { b: 1 } } },
];
for (const { name, value } of VALUE_CASES) {
dbTest(`set and get ${name} value`, async (db) => {
await db.set(["a"], value);
const result = await db.get(["a"]);
assertEquals(result.key, ["a"]);
assertEquals(result.value, value);
});
}
dbTest("set and get recursive object", async (db) => {
// deno-lint-ignore no-explicit-any
const value: any = { a: undefined };
value.a = value;
await db.set(["a"], value);
const result = await db.get(["a"]);
assertEquals(result.key, ["a"]);
// deno-lint-ignore no-explicit-any
const resultValue: any = result.value;
assert(resultValue.a === resultValue);
});
// invalid values (as per structured clone algorithm with _for storage_, NOT JSON)
const INVALID_VALUE_CASES = [
{ name: "function", value: () => {} },
{ name: "symbol", value: Symbol() },
{ name: "WeakMap", value: new WeakMap() },
{ name: "WeakSet", value: new WeakSet() },
{
name: "WebAssembly.Module",
value: new WebAssembly.Module(
new Uint8Array([0x00, 0x61, 0x73, 0x6D, 0x01, 0x00, 0x00, 0x00]),
),
},
{
name: "SharedArrayBuffer",
value: new SharedArrayBuffer(3),
},
];
for (const { name, value } of INVALID_VALUE_CASES) {
dbTest(`set and get ${name} value (invalid)`, async (db) => {
await assertRejects(
async () => await db.set(["a"], value),
Error,
);
const res = await db.get(["a"]);
assertEquals(res.key, ["a"]);
assertEquals(res.value, null);
});
}
const keys = [
["a"],
["a", "b"],
["a", "b", "c"],
[1],
["a", 1],
["a", 1, "b"],
[1n],
["a", 1n],
["a", 1n, "b"],
[true],
["a", true],
["a", true, "b"],
[new Uint8Array([1, 2, 3])],
["a", new Uint8Array([1, 2, 3])],
["a", new Uint8Array([1, 2, 3]), "b"],
[1, 1n, true, new Uint8Array([1, 2, 3]), "a"],
];
for (const key of keys) {
dbTest(`set and get ${Deno.inspect(key)} key`, async (db) => {
await db.set(key, "b");
const result = await db.get(key);
assertEquals(result.key, key);
assertEquals(result.value, "b");
});
}
const INVALID_KEYS = [
[null],
[undefined],
[],
[{}],
[new Date()],
[new ArrayBuffer(3)],
[new Uint8Array([1, 2, 3]).buffer],
[["a", "b"]],
];
for (const key of INVALID_KEYS) {
dbTest(`set and get invalid key ${Deno.inspect(key)}`, async (db) => {
await assertRejects(
async () => {
// @ts-ignore - we are testing invalid keys
await db.set(key, "b");
},
Error,
);
});
}
dbTest("compare and mutate", async (db) => {
await db.set(["t"], "1");
const currentValue = await db.get(["t"]);
assert(currentValue.versionstamp);
assert(currentValue.versionstamp > ZERO_VERSIONSTAMP);
let res = await db.atomic()
.check({ key: ["t"], versionstamp: currentValue.versionstamp })
.set(currentValue.key, "2")
.commit();
assert(res.ok);
assert(res.versionstamp > currentValue.versionstamp);
const newValue = await db.get(["t"]);
assertEquals(newValue.versionstamp, res.versionstamp);
assertEquals(newValue.value, "2");
res = await db.atomic()
.check({ key: ["t"], versionstamp: currentValue.versionstamp })
.set(currentValue.key, "3")
.commit();
assert(!res.ok);
const newValue2 = await db.get(["t"]);
assertEquals(newValue2.versionstamp, newValue.versionstamp);
assertEquals(newValue2.value, "2");
});
dbTest("compare and mutate not exists", async (db) => {
let res = await db.atomic()
.check({ key: ["t"], versionstamp: null })
.set(["t"], "1")
.commit();
assert(res.ok);
assert(res.versionstamp > ZERO_VERSIONSTAMP);
const newValue = await db.get(["t"]);
assertEquals(newValue.versionstamp, res.versionstamp);
assertEquals(newValue.value, "1");
res = await db.atomic()
.check({ key: ["t"], versionstamp: null })
.set(["t"], "2")
.commit();
assert(!res.ok);
});
dbTest("atomic mutation helper (sum)", async (db) => {
await db.set(["t"], new Deno.KvU64(42n));
assertEquals((await db.get(["t"])).value, new Deno.KvU64(42n));
await db.atomic().sum(["t"], 1n).commit();
assertEquals((await db.get(["t"])).value, new Deno.KvU64(43n));
});
dbTest("atomic mutation helper (min)", async (db) => {
await db.set(["t"], new Deno.KvU64(42n));
assertEquals((await db.get(["t"])).value, new Deno.KvU64(42n));
await db.atomic().min(["t"], 1n).commit();
assertEquals((await db.get(["t"])).value, new Deno.KvU64(1n));
await db.atomic().min(["t"], 2n).commit();
assertEquals((await db.get(["t"])).value, new Deno.KvU64(1n));
});
dbTest("atomic mutation helper (max)", async (db) => {
await db.set(["t"], new Deno.KvU64(42n));
assertEquals((await db.get(["t"])).value, new Deno.KvU64(42n));
await db.atomic().max(["t"], 41n).commit();
assertEquals((await db.get(["t"])).value, new Deno.KvU64(42n));
await db.atomic().max(["t"], 43n).commit();
assertEquals((await db.get(["t"])).value, new Deno.KvU64(43n));
});
dbTest("compare multiple and mutate", async (db) => {
const setRes1 = await db.set(["t1"], "1");
const setRes2 = await db.set(["t2"], "2");
assert(setRes1.ok);
assert(setRes1.versionstamp > ZERO_VERSIONSTAMP);
assert(setRes2.ok);
assert(setRes2.versionstamp > ZERO_VERSIONSTAMP);
const currentValue1 = await db.get(["t1"]);
assertEquals(currentValue1.versionstamp, setRes1.versionstamp);
const currentValue2 = await db.get(["t2"]);
assertEquals(currentValue2.versionstamp, setRes2.versionstamp);
const res = await db.atomic()
.check({ key: ["t1"], versionstamp: currentValue1.versionstamp })
.check({ key: ["t2"], versionstamp: currentValue2.versionstamp })
.set(currentValue1.key, "3")
.set(currentValue2.key, "4")
.commit();
assert(res.ok);
assert(res.versionstamp > setRes2.versionstamp);
const newValue1 = await db.get(["t1"]);
assertEquals(newValue1.versionstamp, res.versionstamp);
assertEquals(newValue1.value, "3");
const newValue2 = await db.get(["t2"]);
assertEquals(newValue2.versionstamp, res.versionstamp);
assertEquals(newValue2.value, "4");
// just one of the two checks failed
const res2 = await db.atomic()
.check({ key: ["t1"], versionstamp: newValue1.versionstamp })
.check({ key: ["t2"], versionstamp: null })
.set(newValue1.key, "5")
.set(newValue2.key, "6")
.commit();
assert(!res2.ok);
const newValue3 = await db.get(["t1"]);
assertEquals(newValue3.versionstamp, res.versionstamp);
assertEquals(newValue3.value, "3");
const newValue4 = await db.get(["t2"]);
assertEquals(newValue4.versionstamp, res.versionstamp);
assertEquals(newValue4.value, "4");
});
dbTest("atomic mutation ordering (set before delete)", async (db) => {
await db.set(["a"], "1");
const res = await db.atomic()
.set(["a"], "2")
.delete(["a"])
.commit();
assert(res.ok);
const result = await db.get(["a"]);
assertEquals(result.value, null);
});
dbTest("atomic mutation ordering (delete before set)", async (db) => {
await db.set(["a"], "1");
const res = await db.atomic()
.delete(["a"])
.set(["a"], "2")
.commit();
assert(res.ok);
const result = await db.get(["a"]);
assertEquals(result.value, "2");
});
dbTest("atomic mutation type=set", async (db) => {
const res = await db.atomic()
.mutate({ key: ["a"], value: "1", type: "set" })
.commit();
assert(res.ok);
const result = await db.get(["a"]);
assertEquals(result.value, "1");
});
dbTest("atomic mutation type=set overwrite", async (db) => {
await db.set(["a"], "1");
const res = await db.atomic()
.mutate({ key: ["a"], value: "2", type: "set" })
.commit();
assert(res.ok);
const result = await db.get(["a"]);
assertEquals(result.value, "2");
});
dbTest("atomic mutation type=delete", async (db) => {
await db.set(["a"], "1");
const res = await db.atomic()
.mutate({ key: ["a"], type: "delete" })
.commit();
assert(res.ok);
const result = await db.get(["a"]);
assertEquals(result.value, null);
});
dbTest("atomic mutation type=delete no exists", async (db) => {
const res = await db.atomic()
.mutate({ key: ["a"], type: "delete" })
.commit();
assert(res.ok);
const result = await db.get(["a"]);
assertEquals(result.value, null);
});
dbTest("atomic mutation type=sum", async (db) => {
await db.set(["a"], new Deno.KvU64(10n));
const res = await db.atomic()
.mutate({ key: ["a"], value: new Deno.KvU64(1n), type: "sum" })
.commit();
assert(res.ok);
const result = await db.get(["a"]);
assertEquals(result.value, new Deno.KvU64(11n));
});
dbTest("atomic mutation type=sum no exists", async (db) => {
const res = await db.atomic()
.mutate({ key: ["a"], value: new Deno.KvU64(1n), type: "sum" })
.commit();
assert(res.ok);
const result = await db.get(["a"]);
assert(result.value);
assertEquals(result.value, new Deno.KvU64(1n));
});
dbTest("atomic mutation type=sum wrap around", async (db) => {
await db.set(["a"], new Deno.KvU64(0xffffffffffffffffn));
const res = await db.atomic()
.mutate({ key: ["a"], value: new Deno.KvU64(10n), type: "sum" })
.commit();
assert(res.ok);
const result = await db.get(["a"]);
assertEquals(result.value, new Deno.KvU64(9n));
const res2 = await db.atomic()
.mutate({
key: ["a"],
value: new Deno.KvU64(0xffffffffffffffffn),
type: "sum",
})
.commit();
assert(res2);
const result2 = await db.get(["a"]);
assertEquals(result2.value, new Deno.KvU64(8n));
});
dbTest("atomic mutation type=sum wrong type in db", async (db) => {
await db.set(["a"], 1);
await assertRejects(
async () => {
await db.atomic()
.mutate({ key: ["a"], value: new Deno.KvU64(1n), type: "sum" })
.commit();
},
TypeError,
"Failed to perform 'sum' mutation on a non-U64 value in the database",
);
});
dbTest("atomic mutation type=sum wrong type in mutation", async (db) => {
await db.set(["a"], new Deno.KvU64(1n));
await assertRejects(
async () => {
await db.atomic()
// @ts-expect-error wrong type is intentional
.mutate({ key: ["a"], value: 1, type: "sum" })
.commit();
},
TypeError,
"Failed to perform 'sum' mutation on a non-U64 operand",
);
});
dbTest("atomic mutation type=min", async (db) => {
await db.set(["a"], new Deno.KvU64(10n));
const res = await db.atomic()
.mutate({ key: ["a"], value: new Deno.KvU64(5n), type: "min" })
.commit();
assert(res.ok);
const result = await db.get(["a"]);
assertEquals(result.value, new Deno.KvU64(5n));
const res2 = await db.atomic()
.mutate({ key: ["a"], value: new Deno.KvU64(15n), type: "min" })
.commit();
assert(res2);
const result2 = await db.get(["a"]);
assertEquals(result2.value, new Deno.KvU64(5n));
});
dbTest("atomic mutation type=min no exists", async (db) => {
const res = await db.atomic()
.mutate({ key: ["a"], value: new Deno.KvU64(1n), type: "min" })
.commit();
assert(res.ok);
const result = await db.get(["a"]);
assert(result.value);
assertEquals(result.value, new Deno.KvU64(1n));
});
dbTest("atomic mutation type=min wrong type in db", async (db) => {
await db.set(["a"], 1);
await assertRejects(
async () => {
await db.atomic()
.mutate({ key: ["a"], value: new Deno.KvU64(1n), type: "min" })
.commit();
},
TypeError,
"Failed to perform 'min' mutation on a non-U64 value in the database",
);
});
dbTest("atomic mutation type=min wrong type in mutation", async (db) => {
await db.set(["a"], new Deno.KvU64(1n));
await assertRejects(
async () => {
await db.atomic()
// @ts-expect-error wrong type is intentional
.mutate({ key: ["a"], value: 1, type: "min" })
.commit();
},
TypeError,
"Failed to perform 'min' mutation on a non-U64 operand",
);
});
dbTest("atomic mutation type=max", async (db) => {
await db.set(["a"], new Deno.KvU64(10n));
const res = await db.atomic()
.mutate({ key: ["a"], value: new Deno.KvU64(5n), type: "max" })
.commit();
assert(res.ok);
const result = await db.get(["a"]);
assertEquals(result.value, new Deno.KvU64(10n));
const res2 = await db.atomic()
.mutate({ key: ["a"], value: new Deno.KvU64(15n), type: "max" })
.commit();
assert(res2);
const result2 = await db.get(["a"]);
assertEquals(result2.value, new Deno.KvU64(15n));
});
dbTest("atomic mutation type=max no exists", async (db) => {
const res = await db.atomic()
.mutate({ key: ["a"], value: new Deno.KvU64(1n), type: "max" })
.commit();
assert(res.ok);
const result = await db.get(["a"]);
assert(result.value);
assertEquals(result.value, new Deno.KvU64(1n));
});
dbTest("atomic mutation type=max wrong type in db", async (db) => {
await db.set(["a"], 1);
await assertRejects(
async () => {
await db.atomic()
.mutate({ key: ["a"], value: new Deno.KvU64(1n), type: "max" })
.commit();
},
TypeError,
"Failed to perform 'max' mutation on a non-U64 value in the database",
);
});
dbTest("atomic mutation type=max wrong type in mutation", async (db) => {
await db.set(["a"], new Deno.KvU64(1n));
await assertRejects(
async () => {
await db.atomic()
// @ts-expect-error wrong type is intentional
.mutate({ key: ["a"], value: 1, type: "max" })
.commit();
},
TypeError,
"Failed to perform 'max' mutation on a non-U64 operand",
);
});
Deno.test("KvU64 comparison", () => {
const a = new Deno.KvU64(1n);
const b = new Deno.KvU64(1n);
assertEquals(a, b);
assertThrows(() => {
assertEquals(a, new Deno.KvU64(2n));
}, AssertionError);
});
Deno.test("KvU64 overflow", () => {
assertThrows(() => {
new Deno.KvU64(2n ** 64n);
}, RangeError);
});
Deno.test("KvU64 underflow", () => {
assertThrows(() => {
new Deno.KvU64(-1n);
}, RangeError);
});
Deno.test("KvU64 unbox", () => {
const a = new Deno.KvU64(1n);
assertEquals(a.value, 1n);
});
Deno.test("KvU64 unbox with valueOf", () => {
const a = new Deno.KvU64(1n);
assertEquals(a.valueOf(), 1n);
});
Deno.test("KvU64 auto-unbox", () => {
const a = new Deno.KvU64(1n);
assertEquals(a as unknown as bigint + 1n, 2n);
});
Deno.test("KvU64 toString", () => {
const a = new Deno.KvU64(1n);
assertEquals(a.toString(), "1");
});
Deno.test("KvU64 inspect", () => {
const a = new Deno.KvU64(1n);
assertEquals(Deno.inspect(a), "[Deno.KvU64: 1n]");
});
async function collect<T>(
iter: Deno.KvListIterator<T>,
): Promise<Deno.KvEntry<T>[]> {
const entries: Deno.KvEntry<T>[] = [];
for await (const entry of iter) {
entries.push(entry);
}
return entries;
}
async function setupData(db: Deno.Kv): Promise<string> {
const res = await db.atomic()
.set(["a"], -1)
.set(["a", "a"], 0)
.set(["a", "b"], 1)
.set(["a", "c"], 2)
.set(["a", "d"], 3)
.set(["a", "e"], 4)
.set(["b"], 99)
.set(["b", "a"], 100)
.commit();
assert(res.ok);
return res.versionstamp;
}
dbTest("get many", async (db) => {
const versionstamp = await setupData(db);
const entries = await db.getMany([["b", "a"], ["a"], ["c"]]);
assertEquals(entries, [
{ key: ["b", "a"], value: 100, versionstamp },
{ key: ["a"], value: -1, versionstamp },
{ key: ["c"], value: null, versionstamp: null },
]);
});
dbTest("list prefix", async (db) => {
const versionstamp = await setupData(db);
const entries = await collect(db.list({ prefix: ["a"] }));
assertEquals(entries, [
{ key: ["a", "a"], value: 0, versionstamp },
{ key: ["a", "b"], value: 1, versionstamp },
{ key: ["a", "c"], value: 2, versionstamp },
{ key: ["a", "d"], value: 3, versionstamp },
{ key: ["a", "e"], value: 4, versionstamp },
]);
});
dbTest("list prefix empty", async (db) => {
await setupData(db);
const entries = await collect(db.list({ prefix: ["c"] }));
assertEquals(entries.length, 0);
const entries2 = await collect(db.list({ prefix: ["a", "f"] }));
assertEquals(entries2.length, 0);
});
dbTest("list prefix with start", async (db) => {
const versionstamp = await setupData(db);
const entries = await collect(db.list({ prefix: ["a"], start: ["a", "c"] }));
assertEquals(entries, [
{ key: ["a", "c"], value: 2, versionstamp },
{ key: ["a", "d"], value: 3, versionstamp },
{ key: ["a", "e"], value: 4, versionstamp },
]);
});
dbTest("list prefix with start empty", async (db) => {
await setupData(db);
const entries = await collect(db.list({ prefix: ["a"], start: ["a", "f"] }));
assertEquals(entries.length, 0);
});
dbTest("list prefix with end", async (db) => {
const versionstamp = await setupData(db);
const entries = await collect(db.list({ prefix: ["a"], end: ["a", "c"] }));
assertEquals(entries, [
{ key: ["a", "a"], value: 0, versionstamp },
{ key: ["a", "b"], value: 1, versionstamp },
]);
});
dbTest("list prefix with end empty", async (db) => {
await setupData(db);
const entries = await collect(db.list({ prefix: ["a"], end: ["a", "a"] }));
assertEquals(entries.length, 0);
});
dbTest("list prefix with empty prefix", async (db) => {
const res = await db.set(["a"], 1);
const entries = await collect(db.list({ prefix: [] }));
assertEquals(entries, [
{ key: ["a"], value: 1, versionstamp: res.versionstamp },
]);
});
dbTest("list prefix reverse", async (db) => {
const versionstamp = await setupData(db);
const entries = await collect(db.list({ prefix: ["a"] }, { reverse: true }));
assertEquals(entries, [
{ key: ["a", "e"], value: 4, versionstamp },
{ key: ["a", "d"], value: 3, versionstamp },
{ key: ["a", "c"], value: 2, versionstamp },
{ key: ["a", "b"], value: 1, versionstamp },
{ key: ["a", "a"], value: 0, versionstamp },
]);
});
dbTest("list prefix reverse with start", async (db) => {
const versionstamp = await setupData(db);
const entries = await collect(
db.list({ prefix: ["a"], start: ["a", "c"] }, { reverse: true }),
);
assertEquals(entries, [
{ key: ["a", "e"], value: 4, versionstamp },
{ key: ["a", "d"], value: 3, versionstamp },
{ key: ["a", "c"], value: 2, versionstamp },
]);
});
dbTest("list prefix reverse with start empty", async (db) => {
await setupData(db);
const entries = await collect(
db.list({ prefix: ["a"], start: ["a", "f"] }, { reverse: true }),
);
assertEquals(entries.length, 0);
});
dbTest("list prefix reverse with end", async (db) => {
const versionstamp = await setupData(db);
const entries = await collect(
db.list({ prefix: ["a"], end: ["a", "c"] }, { reverse: true }),
);
assertEquals(entries, [
{ key: ["a", "b"], value: 1, versionstamp },
{ key: ["a", "a"], value: 0, versionstamp },
]);
});
dbTest("list prefix reverse with end empty", async (db) => {
await setupData(db);
const entries = await collect(
db.list({ prefix: ["a"], end: ["a", "a"] }, { reverse: true }),
);
assertEquals(entries.length, 0);
});
dbTest("list prefix limit", async (db) => {
const versionstamp = await setupData(db);
const entries = await collect(db.list({ prefix: ["a"] }, { limit: 2 }));
assertEquals(entries, [
{ key: ["a", "a"], value: 0, versionstamp },
{ key: ["a", "b"], value: 1, versionstamp },
]);
});
dbTest("list prefix limit reverse", async (db) => {
const versionstamp = await setupData(db);
const entries = await collect(
db.list({ prefix: ["a"] }, { limit: 2, reverse: true }),
);
assertEquals(entries, [
{ key: ["a", "e"], value: 4, versionstamp },
{ key: ["a", "d"], value: 3, versionstamp },
]);
});
dbTest("list prefix with small batch size", async (db) => {
const versionstamp = await setupData(db);
const entries = await collect(db.list({ prefix: ["a"] }, { batchSize: 2 }));
assertEquals(entries, [
{ key: ["a", "a"], value: 0, versionstamp },
{ key: ["a", "b"], value: 1, versionstamp },
{ key: ["a", "c"], value: 2, versionstamp },
{ key: ["a", "d"], value: 3, versionstamp },
{ key: ["a", "e"], value: 4, versionstamp },
]);
});
dbTest("list prefix with small batch size reverse", async (db) => {
const versionstamp = await setupData(db);
const entries = await collect(
db.list({ prefix: ["a"] }, { batchSize: 2, reverse: true }),
);
assertEquals(entries, [
{ key: ["a", "e"], value: 4, versionstamp },
{ key: ["a", "d"], value: 3, versionstamp },
{ key: ["a", "c"], value: 2, versionstamp },
{ key: ["a", "b"], value: 1, versionstamp },
{ key: ["a", "a"], value: 0, versionstamp },
]);
});
dbTest("list prefix with small batch size and limit", async (db) => {
const versionstamp = await setupData(db);
const entries = await collect(
db.list({ prefix: ["a"] }, { batchSize: 2, limit: 3 }),
);
assertEquals(entries, [
{ key: ["a", "a"], value: 0, versionstamp },
{ key: ["a", "b"], value: 1, versionstamp },
{ key: ["a", "c"], value: 2, versionstamp },
]);
});
dbTest("list prefix with small batch size and limit reverse", async (db) => {
const versionstamp = await setupData(db);
const entries = await collect(
db.list({ prefix: ["a"] }, { batchSize: 2, limit: 3, reverse: true }),
);
assertEquals(entries, [
{ key: ["a", "e"], value: 4, versionstamp },
{ key: ["a", "d"], value: 3, versionstamp },
{ key: ["a", "c"], value: 2, versionstamp },
]);
});
dbTest("list prefix with manual cursor", async (db) => {
const versionstamp = await setupData(db);
const iterator = db.list({ prefix: ["a"] }, { limit: 2 });
const values = await collect(iterator);
assertEquals(values, [
{ key: ["a", "a"], value: 0, versionstamp },
{ key: ["a", "b"], value: 1, versionstamp },
]);
const cursor = iterator.cursor;
assertEquals(cursor, "AmIA");
const iterator2 = db.list({ prefix: ["a"] }, { cursor });
const values2 = await collect(iterator2);
assertEquals(values2, [
{ key: ["a", "c"], value: 2, versionstamp },
{ key: ["a", "d"], value: 3, versionstamp },
{ key: ["a", "e"], value: 4, versionstamp },
]);
});
dbTest("list prefix with manual cursor reverse", async (db) => {
const versionstamp = await setupData(db);
const iterator = db.list({ prefix: ["a"] }, { limit: 2, reverse: true });
const values = await collect(iterator);
assertEquals(values, [
{ key: ["a", "e"], value: 4, versionstamp },
{ key: ["a", "d"], value: 3, versionstamp },
]);
const cursor = iterator.cursor;
assertEquals(cursor, "AmQA");
const iterator2 = db.list({ prefix: ["a"] }, { cursor, reverse: true });
const values2 = await collect(iterator2);
assertEquals(values2, [
{ key: ["a", "c"], value: 2, versionstamp },
{ key: ["a", "b"], value: 1, versionstamp },
{ key: ["a", "a"], value: 0, versionstamp },
]);
});
dbTest("list range", async (db) => {
const versionstamp = await setupData(db);
const entries = await collect(
db.list({ start: ["a", "a"], end: ["a", "z"] }),
);
assertEquals(entries, [
{ key: ["a", "a"], value: 0, versionstamp },
{ key: ["a", "b"], value: 1, versionstamp },
{ key: ["a", "c"], value: 2, versionstamp },
{ key: ["a", "d"], value: 3, versionstamp },
{ key: ["a", "e"], value: 4, versionstamp },
]);
});
dbTest("list range reverse", async (db) => {
const versionstamp = await setupData(db);
const entries = await collect(
db.list({ start: ["a", "a"], end: ["a", "z"] }, { reverse: true }),
);
assertEquals(entries, [
{ key: ["a", "e"], value: 4, versionstamp },
{ key: ["a", "d"], value: 3, versionstamp },
{ key: ["a", "c"], value: 2, versionstamp },
{ key: ["a", "b"], value: 1, versionstamp },
{ key: ["a", "a"], value: 0, versionstamp },
]);
});
dbTest("list range with limit", async (db) => {
const versionstamp = await setupData(db);
const entries = await collect(
db.list({ start: ["a", "a"], end: ["a", "z"] }, { limit: 3 }),
);
assertEquals(entries, [
{ key: ["a", "a"], value: 0, versionstamp },
{ key: ["a", "b"], value: 1, versionstamp },
{ key: ["a", "c"], value: 2, versionstamp },
]);
});
dbTest("list range with limit reverse", async (db) => {
const versionstamp = await setupData(db);
const entries = await collect(
db.list({ start: ["a", "a"], end: ["a", "z"] }, {
limit: 3,
reverse: true,
}),
);
assertEquals(entries, [
{ key: ["a", "e"], value: 4, versionstamp },
{ key: ["a", "d"], value: 3, versionstamp },
{ key: ["a", "c"], value: 2, versionstamp },
]);
});
dbTest("list range nesting", async (db) => {
const versionstamp = await setupData(db);
const entries = await collect(db.list({ start: ["a"], end: ["a", "d"] }));
assertEquals(entries, [
{ key: ["a"], value: -1, versionstamp },
{ key: ["a", "a"], value: 0, versionstamp },
{ key: ["a", "b"], value: 1, versionstamp },
{ key: ["a", "c"], value: 2, versionstamp },
]);
});
dbTest("list range short", async (db) => {
const versionstamp = await setupData(db);
const entries = await collect(
db.list({ start: ["a", "b"], end: ["a", "d"] }),
);
assertEquals(entries, [
{ key: ["a", "b"], value: 1, versionstamp },
{ key: ["a", "c"], value: 2, versionstamp },
]);
});
dbTest("list range with manual cursor", async (db) => {
const versionstamp = await setupData(db);
const iterator = db.list({ start: ["a", "b"], end: ["a", "z"] }, {
limit: 2,
});
const entries = await collect(iterator);
assertEquals(entries, [
{ key: ["a", "b"], value: 1, versionstamp },
{ key: ["a", "c"], value: 2, versionstamp },
]);
const cursor = iterator.cursor;
const iterator2 = db.list({ start: ["a", "b"], end: ["a", "z"] }, {
cursor,
});
const entries2 = await collect(iterator2);
assertEquals(entries2, [
{ key: ["a", "d"], value: 3, versionstamp },
{ key: ["a", "e"], value: 4, versionstamp },
]);
});
dbTest("list range with manual cursor reverse", async (db) => {
const versionstamp = await setupData(db);
const iterator = db.list({ start: ["a", "b"], end: ["a", "z"] }, {
limit: 2,
reverse: true,
});
const entries = await collect(iterator);
assertEquals(entries, [
{ key: ["a", "e"], value: 4, versionstamp },
{ key: ["a", "d"], value: 3, versionstamp },
]);
const cursor = iterator.cursor;
const iterator2 = db.list({ start: ["a", "b"], end: ["a", "z"] }, {
cursor,
reverse: true,
});
const entries2 = await collect(iterator2);
assertEquals(entries2, [
{ key: ["a", "c"], value: 2, versionstamp },
{ key: ["a", "b"], value: 1, versionstamp },
]);
});
dbTest("list invalid selector", async (db) => {
await setupData(db);
await assertRejects(async () => {
await collect(
db.list({ prefix: ["a"], start: ["a", "b"], end: ["a", "c"] }),
);
}, TypeError);
await assertRejects(async () => {
await collect(
// @ts-expect-error missing end
db.list({ start: ["a", "b"] }),
);
}, TypeError);
await assertRejects(async () => {
await collect(
// @ts-expect-error missing start
db.list({ end: ["a", "b"] }),
);
}, TypeError);
});
dbTest("invalid versionstamp in atomic check rejects", async (db) => {
await assertRejects(async () => {
await db.atomic().check({ key: ["a"], versionstamp: "" }).commit();
}, TypeError);
await assertRejects(async () => {
await db.atomic().check({ key: ["a"], versionstamp: "xx".repeat(10) })
.commit();
}, TypeError);
await assertRejects(async () => {
await db.atomic().check({ key: ["a"], versionstamp: "aa".repeat(11) })
.commit();
}, TypeError);
});
dbTest("invalid mutation type rejects", async (db) => {
await assertRejects(async () => {
await db.atomic()
// @ts-expect-error invalid type + value combo
.mutate({ key: ["a"], type: "set" })
.commit();
}, TypeError);
await assertRejects(async () => {
await db.atomic()
// @ts-expect-error invalid type + value combo
.mutate({ key: ["a"], type: "delete", value: "123" })
.commit();
}, TypeError);
await assertRejects(async () => {
await db.atomic()
// @ts-expect-error invalid type
.mutate({ key: ["a"], type: "foobar" })
.commit();
}, TypeError);
await assertRejects(async () => {
await db.atomic()
// @ts-expect-error invalid type
.mutate({ key: ["a"], type: "foobar", value: "123" })
.commit();
}, TypeError);
});
dbTest("key ordering", async (db) => {
await db.atomic()
.set([new Uint8Array(0x1)], 0)
.set(["a"], 0)
.set([1n], 0)
.set([3.14], 0)
.set([false], 0)
.set([true], 0)
.commit();
assertEquals((await collect(db.list({ prefix: [] }))).map((x) => x.key), [
[new Uint8Array(0x1)],
["a"],
[1n],
[3.14],
[false],
[true],
]);
});
dbTest("key size limit", async (db) => {
// 1 byte prefix + 1 byte suffix + 2045 bytes key
const lastValidKey = new Uint8Array(2046).fill(1);
const firstInvalidKey = new Uint8Array(2047).fill(1);
const res = await db.set([lastValidKey], 1);
assertEquals(await db.get([lastValidKey]), {
key: [lastValidKey],
value: 1,
versionstamp: res.versionstamp,
});
await assertRejects(
async () => await db.set([firstInvalidKey], 1),
TypeError,
"key too large for write (max 2048 bytes)",
);
await assertRejects(
async () => await db.get([firstInvalidKey]),
TypeError,
"key too large for read (max 2049 bytes)",
);
});
dbTest("value size limit", async (db) => {
const lastValidValue = new Uint8Array(65536);
const firstInvalidValue = new Uint8Array(65537);
const res = await db.set(["a"], lastValidValue);
assertEquals(await db.get(["a"]), {
key: ["a"],
value: lastValidValue,
versionstamp: res.versionstamp,
});
await assertRejects(
async () => await db.set(["b"], firstInvalidValue),
TypeError,
"value too large (max 65536 bytes)",
);
});
dbTest("operation size limit", async (db) => {
const lastValidKeys: Deno.KvKey[] = new Array(10).fill(0).map((
_,
i,
) => ["a", i]);
const firstInvalidKeys: Deno.KvKey[] = new Array(11).fill(0).map((
_,
i,
) => ["a", i]);
const invalidCheckKeys: Deno.KvKey[] = new Array(101).fill(0).map((
_,
i,
) => ["a", i]);
const res = await db.getMany(lastValidKeys);
assertEquals(res.length, 10);
await assertRejects(
async () => await db.getMany(firstInvalidKeys),
TypeError,
"too many ranges (max 10)",
);
const res2 = await collect(db.list({ prefix: ["a"] }, { batchSize: 1000 }));
assertEquals(res2.length, 0);
await assertRejects(
async () => await collect(db.list({ prefix: ["a"] }, { batchSize: 1001 })),
TypeError,
"too many entries (max 1000)",
);
// when batchSize is not specified, limit is used but is clamped to 500
assertEquals(
(await collect(db.list({ prefix: ["a"] }, { limit: 1001 }))).length,
0,
);
const res3 = await db.atomic()
.check(...lastValidKeys.map((key) => ({
key,
versionstamp: null,
})))
.mutate(...lastValidKeys.map((key) => ({
key,
type: "set",
value: 1,
} satisfies Deno.KvMutation)))
.commit();
assert(res3);
await assertRejects(
async () => {
await db.atomic()
.check(...invalidCheckKeys.map((key) => ({
key,
versionstamp: null,
})))
.mutate(...lastValidKeys.map((key) => ({
key,
type: "set",
value: 1,
} satisfies Deno.KvMutation)))
.commit();
},
TypeError,
"too many checks (max 100)",
);
const validMutateKeys: Deno.KvKey[] = new Array(1000).fill(0).map((
_,
i,
) => ["a", i]);
const invalidMutateKeys: Deno.KvKey[] = new Array(1001).fill(0).map((
_,
i,
) => ["a", i]);
const res4 = await db.atomic()
.check(...lastValidKeys.map((key) => ({
key,
versionstamp: null,
})))
.mutate(...validMutateKeys.map((key) => ({
key,
type: "set",
value: 1,
} satisfies Deno.KvMutation)))
.commit();
assert(res4);
await assertRejects(
async () => {
await db.atomic()
.check(...lastValidKeys.map((key) => ({
key,
versionstamp: null,
})))
.mutate(...invalidMutateKeys.map((key) => ({
key,
type: "set",
value: 1,
} satisfies Deno.KvMutation)))
.commit();
},
TypeError,
"too many mutations (max 1000)",
);
});
dbTest("total mutation size limit", async (db) => {
const keys: Deno.KvKey[] = new Array(1000).fill(0).map((
_,
i,
) => ["a", i]);
const atomic = db.atomic();
for (const key of keys) {
atomic.set(key, "foo");
}
const res = await atomic.commit();
assert(res);
// Use bigger values to trigger "total mutation size too large" error
await assertRejects(
async () => {
const value = new Array(3000).fill("a").join("");
const atomic = db.atomic();
for (const key of keys) {
atomic.set(key, value);
}
await atomic.commit();
},
TypeError,
"total mutation size too large (max 819200 bytes)",
);
});
dbTest("total key size limit", async (db) => {
const longString = new Array(1100).fill("a").join("");
const keys: Deno.KvKey[] = new Array(80).fill(0).map(() => [longString]);
const atomic = db.atomic();
for (const key of keys) {
atomic.set(key, "foo");
}
await assertRejects(
() => atomic.commit(),
TypeError,
"total key size too large (max 81920 bytes)",
);
});
dbTest("keys must be arrays", async (db) => {
await assertRejects(
// @ts-expect-error invalid type
async () => await db.get("a"),
TypeError,
);
await assertRejects(
// @ts-expect-error invalid type
async () => await db.getMany(["a"]),
TypeError,
);
await assertRejects(
// @ts-expect-error invalid type
async () => await db.set("a", 1),
TypeError,
);
await assertRejects(
// @ts-expect-error invalid type
async () => await db.delete("a"),
TypeError,
);
await assertRejects(
async () =>
await db.atomic()
// @ts-expect-error invalid type
.mutate({ key: "a", type: "set", value: 1 } satisfies Deno.KvMutation)
.commit(),
TypeError,
);
await assertRejects(
async () =>
await db.atomic()
// @ts-expect-error invalid type
.check({ key: "a", versionstamp: null })
.set(["a"], 1)
.commit(),
TypeError,
);
});
Deno.test("Deno.Kv constructor throws", () => {
assertThrows(() => {
new Deno.Kv();
});
});
// This function is never called, it is just used to check that all the types
// are behaving as expected.
async function _typeCheckingTests() {
const kv = new Deno.Kv();
const a = await kv.get(["a"]);
assertType<IsExact<typeof a, Deno.KvEntryMaybe<unknown>>>(true);
const b = await kv.get<string>(["b"]);
assertType<IsExact<typeof b, Deno.KvEntryMaybe<string>>>(true);
const c = await kv.getMany([["a"], ["b"]]);
assertType<
IsExact<typeof c, [Deno.KvEntryMaybe<unknown>, Deno.KvEntryMaybe<unknown>]>
>(true);
const d = await kv.getMany([["a"], ["b"]] as const);
assertType<
IsExact<typeof d, [Deno.KvEntryMaybe<unknown>, Deno.KvEntryMaybe<unknown>]>
>(true);
const e = await kv.getMany<[string, number]>([["a"], ["b"]]);
assertType<
IsExact<typeof e, [Deno.KvEntryMaybe<string>, Deno.KvEntryMaybe<number>]>
>(true);
const keys: Deno.KvKey[] = [["a"], ["b"]];
const f = await kv.getMany(keys);
assertType<IsExact<typeof f, Deno.KvEntryMaybe<unknown>[]>>(true);
const g = kv.list({ prefix: ["a"] });
assertType<IsExact<typeof g, Deno.KvListIterator<unknown>>>(true);
const h = await g.next();
assert(!h.done);
assertType<IsExact<typeof h.value, Deno.KvEntry<unknown>>>(true);
const i = kv.list<string>({ prefix: ["a"] });
assertType<IsExact<typeof i, Deno.KvListIterator<string>>>(true);
const j = await i.next();
assert(!j.done);
assertType<IsExact<typeof j.value, Deno.KvEntry<string>>>(true);
}
queueTest("basic listenQueue and enqueue", async (db) => {
const { promise, resolve } = Promise.withResolvers<void>();
let dequeuedMessage: unknown = null;
const listener = db.listenQueue((msg) => {
dequeuedMessage = msg;
resolve();
});
try {
const res = await db.enqueue("test");
assert(res.ok);
assertNotEquals(res.versionstamp, null);
await promise;
assertEquals(dequeuedMessage, "test");
} finally {
db.close();
await listener;
}
});
for (const { name, value } of VALUE_CASES) {
queueTest(`listenQueue and enqueue ${name}`, async (db) => {
const numEnqueues = 10;
let count = 0;
const deferreds: ReturnType<typeof Promise.withResolvers<unknown>>[] = [];
const listeners: Promise<void>[] = [];
listeners.push(db.listenQueue((msg: unknown) => {
deferreds[count++].resolve(msg);
}));
try {
for (let i = 0; i < numEnqueues; i++) {
deferreds.push(Promise.withResolvers<unknown>());
await db.enqueue(value);
}
const dequeuedMessages = await Promise.all(
deferreds.map(({ promise }) => promise),
);
for (let i = 0; i < numEnqueues; i++) {
assertEquals(dequeuedMessages[i], value);
}
} finally {
db.close();
for (const listener of listeners) {
await listener;
}
}
});
}
queueTest("queue mixed types", async (db) => {
let deferred: ReturnType<typeof Promise.withResolvers<void>>;
let dequeuedMessage: unknown = null;
const listener = db.listenQueue((msg: unknown) => {
dequeuedMessage = msg;
deferred.resolve();
});
try {
for (const item of VALUE_CASES) {
deferred = Promise.withResolvers<void>();
await db.enqueue(item.value);
await deferred.promise;
assertEquals(dequeuedMessage, item.value);
}
} finally {
db.close();
await listener;
}
});
queueTest("queue delay", async (db) => {
let dequeueTime: number | undefined;
const { promise, resolve } = Promise.withResolvers<void>();
let dequeuedMessage: unknown = null;
const listener = db.listenQueue((msg) => {
dequeueTime = Date.now();
dequeuedMessage = msg;
resolve();
});
try {
const enqueueTime = Date.now();
await db.enqueue("test", { delay: 1000 });
await promise;
assertEquals(dequeuedMessage, "test");
assert(dequeueTime !== undefined);
assert(dequeueTime - enqueueTime >= 1000);
} finally {
db.close();
await listener;
}
});
queueTest("queue delay with atomic", async (db) => {
let dequeueTime: number | undefined;
const { promise, resolve } = Promise.withResolvers<void>();
let dequeuedMessage: unknown = null;
const listener = db.listenQueue((msg) => {
dequeueTime = Date.now();
dequeuedMessage = msg;
resolve();
});
try {
const enqueueTime = Date.now();
const res = await db.atomic()
.enqueue("test", { delay: 1000 })
.commit();
assert(res.ok);
await promise;
assertEquals(dequeuedMessage, "test");
assert(dequeueTime !== undefined);
assert(dequeueTime - enqueueTime >= 1000);
} finally {
db.close();
await listener;
}
});
queueTest("queue delay and now", async (db) => {
let count = 0;
let dequeueTime: number | undefined;
const { promise, resolve } = Promise.withResolvers<void>();
let dequeuedMessage: unknown = null;
const listener = db.listenQueue((msg) => {
count += 1;
if (count == 2) {
dequeueTime = Date.now();
dequeuedMessage = msg;
resolve();
}
});
try {
const enqueueTime = Date.now();
await db.enqueue("test-1000", { delay: 1000 });
await db.enqueue("test");
await promise;
assertEquals(dequeuedMessage, "test-1000");
assert(dequeueTime !== undefined);
assert(dequeueTime - enqueueTime >= 1000);
} finally {
db.close();
await listener;
}
});
dbTest("queue negative delay", async (db) => {
await assertRejects(async () => {
await db.enqueue("test", { delay: -100 });
}, TypeError);
});
dbTest("queue nan delay", async (db) => {
await assertRejects(async () => {
await db.enqueue("test", { delay: Number.NaN });
}, TypeError);
});
dbTest("queue large delay", async (db) => {
await db.enqueue("test", { delay: 30 * 24 * 60 * 60 * 1000 });
await assertRejects(async () => {
await db.enqueue("test", { delay: 30 * 24 * 60 * 60 * 1000 + 1 });
}, TypeError);
});
queueTest("listenQueue with async callback", async (db) => {
const { promise, resolve } = Promise.withResolvers<void>();
let dequeuedMessage: unknown = null;
const listener = db.listenQueue(async (msg) => {
dequeuedMessage = msg;
await sleep(100);
resolve();
});
try {
await db.enqueue("test");
await promise;
assertEquals(dequeuedMessage, "test");
} finally {
db.close();
await listener;
}
});
queueTest("queue retries", async (db) => {
let count = 0;
const listener = db.listenQueue(async (_msg) => {
count += 1;
await sleep(10);
throw new TypeError("dequeue error");
});
try {
await db.enqueue("test");
await sleep(10000);
} finally {
db.close();
await listener;
}
// There should have been 1 attempt + 3 retries in the 10 seconds
assertEquals(4, count);
});
queueTest("multiple listenQueues", async (db) => {
const numListens = 10;
let count = 0;
const deferreds: ReturnType<typeof Promise.withResolvers<void>>[] = [];
const dequeuedMessages: unknown[] = [];
const listeners: Promise<void>[] = [];
for (let i = 0; i < numListens; i++) {
listeners.push(db.listenQueue((msg) => {
dequeuedMessages.push(msg);
deferreds[count++].resolve();
}));
}
try {
for (let i = 0; i < numListens; i++) {
deferreds.push(Promise.withResolvers<void>());
await db.enqueue("msg_" + i);
await deferreds[i].promise;
const msg = dequeuedMessages[i];
assertEquals("msg_" + i, msg);
}
} finally {
db.close();
for (let i = 0; i < numListens; i++) {
await listeners[i];
}
}
});
queueTest("enqueue with atomic", async (db) => {
const { promise, resolve } = Promise.withResolvers<void>();
let dequeuedMessage: unknown = null;
const listener = db.listenQueue((msg) => {
dequeuedMessage = msg;
resolve();
});
try {
await db.set(["t"], "1");
let currentValue = await db.get(["t"]);
assertEquals("1", currentValue.value);
const res = await db.atomic()
.check(currentValue)
.set(currentValue.key, "2")
.enqueue("test")
.commit();
assert(res.ok);
await promise;
assertEquals("test", dequeuedMessage);
currentValue = await db.get(["t"]);
assertEquals("2", currentValue.value);
} finally {
db.close();
await listener;
}
});
queueTest("enqueue with atomic nonce", async (db) => {
const { promise, resolve } = Promise.withResolvers<void>();
let dequeuedMessage: unknown = null;
const nonce = crypto.randomUUID();
const listener = db.listenQueue(async (val) => {
const message = val as { msg: string; nonce: string };
const nonce = message.nonce;
const nonceValue = await db.get(["nonces", nonce]);
if (nonceValue.versionstamp === null) {
dequeuedMessage = message.msg;
resolve();
return;
}
assertNotEquals(nonceValue.versionstamp, null);
const res = await db.atomic()
.check(nonceValue)
.delete(["nonces", nonce])
.set(["a", "b"], message.msg)
.commit();
if (res.ok) {
// Simulate an error so that the message has to be redelivered
throw new Error("injected error");
}
});
try {
const res = await db.atomic()
.check({ key: ["nonces", nonce], versionstamp: null })
.set(["nonces", nonce], true)
.enqueue({ msg: "test", nonce })
.commit();
assert(res.ok);
await promise;
assertEquals("test", dequeuedMessage);
const currentValue = await db.get(["a", "b"]);
assertEquals("test", currentValue.value);
const nonceValue = await db.get(["nonces", nonce]);
assertEquals(nonceValue.versionstamp, null);
} finally {
db.close();
await listener;
}
});
Deno.test({
name: "queue persistence with inflight messages",
sanitizeOps: false,
sanitizeResources: false,
async fn() {
const filename = await Deno.makeTempFile({ prefix: "queue_db" });
try {
let db: Deno.Kv = await Deno.openKv(filename);
let count = 0;
let deferred = Promise.withResolvers<void>();
// Register long-running handler.
let listener = db.listenQueue(async (_msg) => {
count += 1;
if (count == 3) {
deferred.resolve();
}
await new Promise(() => {});
});
// Enqueue 3 messages.
await db.enqueue("msg0");
await db.enqueue("msg1");
await db.enqueue("msg2");
await deferred.promise;
// Close the database and wait for the listener to finish.
db.close();
await listener;
// Wait at least MESSAGE_DEADLINE_TIMEOUT before reopening the database.
// This ensures that inflight messages are requeued immediately after
// the database is reopened.
// https://github.com/denoland/denokv/blob/efb98a1357d37291a225ed5cf1fc4ecc7c737fab/sqlite/backend.rs#L120
await sleep(6000);
// Now reopen the database.
db = await Deno.openKv(filename);
count = 0;
deferred = Promise.withResolvers<void>();
// Register a handler that will complete quickly.
listener = db.listenQueue((_msg) => {
count += 1;
if (count == 3) {
deferred.resolve();
}
});
// Wait for the handlers to finish.
await deferred.promise;
assertEquals(3, count);
db.close();
await listener;
} finally {
try {
await Deno.remove(filename);
} catch {
// pass
}
}
},
});
Deno.test({
name: "queue persistence with delay messages",
async fn() {
const filename = await Deno.makeTempFile({ prefix: "queue_db" });
try {
await Deno.remove(filename);
} catch {
// pass
}
try {
let db: Deno.Kv = await Deno.openKv(filename);
let count = 0;
let deferred = Promise.withResolvers<void>();
// Register long-running handler.
let listener = db.listenQueue((_msg) => {});
// Enqueue 3 messages into the future.
await db.enqueue("msg0", { delay: 10000 });
await db.enqueue("msg1", { delay: 10000 });
await db.enqueue("msg2", { delay: 10000 });
// Close the database and wait for the listener to finish.
db.close();
await listener;
// Now reopen the database.
db = await Deno.openKv(filename);
count = 0;
deferred = Promise.withResolvers<void>();
// Register a handler that will complete quickly.
listener = db.listenQueue((_msg) => {
count += 1;
if (count == 3) {
deferred.resolve();
}
});
// Wait for the handlers to finish.
await deferred.promise;
assertEquals(3, count);
db.close();
await listener;
} finally {
try {
await Deno.remove(filename);
} catch {
// pass
}
}
},
});
Deno.test({
name: "different kv instances for enqueue and queueListen",
async fn() {
const filename = await Deno.makeTempFile({ prefix: "queue_db" });
try {
const db0 = await Deno.openKv(filename);
const db1 = await Deno.openKv(filename);
const { promise, resolve } = Promise.withResolvers<void>();
let dequeuedMessage: unknown = null;
const listener = db0.listenQueue((msg) => {
dequeuedMessage = msg;
resolve();
});
try {
const res = await db1.enqueue("test");
assert(res.ok);
assertNotEquals(res.versionstamp, null);
await promise;
assertEquals(dequeuedMessage, "test");
} finally {
db0.close();
await listener;
db1.close();
}
} finally {
try {
await Deno.remove(filename);
} catch {
// pass
}
}
},
});
Deno.test({
name: "queue graceful close",
async fn() {
const db: Deno.Kv = await Deno.openKv(":memory:");
const listener = db.listenQueue((_msg) => {});
db.close();
await listener;
},
});
dbTest("atomic operation is exposed", (db) => {
assert(Deno.AtomicOperation);
const ao = db.atomic();
assert(ao instanceof Deno.AtomicOperation);
});
Deno.test({
name: "racy open",
async fn() {
for (let i = 0; i < 100; i++) {
const filename = await Deno.makeTempFile({ prefix: "racy_open_db" });
try {
const [db1, db2, db3] = await Promise.all([
Deno.openKv(filename),
Deno.openKv(filename),
Deno.openKv(filename),
]);
db1.close();
db2.close();
db3.close();
} finally {
await Deno.remove(filename);
}
}
},
});
Deno.test({
name: "racy write",
async fn() {
const filename = await Deno.makeTempFile({ prefix: "racy_write_db" });
const concurrency = 20;
const iterations = 5;
try {
const dbs = await Promise.all(
Array(concurrency).fill(0).map(() => Deno.openKv(filename)),
);
try {
for (let i = 0; i < iterations; i++) {
await Promise.all(
dbs.map((db) => db.atomic().sum(["counter"], 1n).commit()),
);
}
assertEquals(
((await dbs[0].get(["counter"])).value as Deno.KvU64).value,
BigInt(concurrency * iterations),
);
} finally {
dbs.forEach((db) => db.close());
}
} finally {
await Deno.remove(filename);
}
},
});
Deno.test({
name: "kv expiration",
async fn() {
const filename = await Deno.makeTempFile({ prefix: "kv_expiration_db" });
try {
await Deno.remove(filename);
} catch {
// pass
}
let db: Deno.Kv | null = null;
try {
db = await Deno.openKv(filename);
await db.set(["a"], 1, { expireIn: 1000 });
await db.set(["b"], 2, { expireIn: 1000 });
assertEquals((await db.get(["a"])).value, 1);
assertEquals((await db.get(["b"])).value, 2);
// Value overwrite should also reset expiration
await db.set(["b"], 2, { expireIn: 3600 * 1000 });
// Wait for expiration
await sleep(1000);
// Re-open to trigger immediate cleanup
db.close();
db = null;
db = await Deno.openKv(filename);
let ok = false;
for (let i = 0; i < 50; i++) {
await sleep(100);
if (
JSON.stringify(
(await db.getMany([["a"], ["b"]])).map((x) => x.value),
) === "[null,2]"
) {
ok = true;
break;
}
}
if (!ok) {
throw new Error("Values did not expire");
}
} finally {
if (db) {
try {
db.close();
} catch {
// pass
}
}
try {
await Deno.remove(filename);
} catch {
// pass
}
}
},
});
Deno.test({
name: "kv expiration with atomic",
async fn() {
const filename = await Deno.makeTempFile({ prefix: "kv_expiration_db" });
try {
await Deno.remove(filename);
} catch {
// pass
}
let db: Deno.Kv | null = null;
try {
db = await Deno.openKv(filename);
await db.atomic().set(["a"], 1, { expireIn: 1000 }).set(["b"], 2, {
expireIn: 1000,
}).commit();
assertEquals((await db.getMany([["a"], ["b"]])).map((x) => x.value), [
1,
2,
]);
// Wait for expiration
await sleep(1000);
// Re-open to trigger immediate cleanup
db.close();
db = null;
db = await Deno.openKv(filename);
let ok = false;
for (let i = 0; i < 50; i++) {
await sleep(100);
if (
JSON.stringify(
(await db.getMany([["a"], ["b"]])).map((x) => x.value),
) === "[null,null]"
) {
ok = true;
break;
}
}
if (!ok) {
throw new Error("Values did not expire");
}
} finally {
if (db) {
try {
db.close();
} catch {
// pass
}
}
try {
await Deno.remove(filename);
} catch {
// pass
}
}
},
});
Deno.test({
name: "remote backend",
async fn() {
const db = await Deno.openKv("http://localhost:4545/kv_remote_authorize");
try {
await db.set(["some-key"], 1);
const entry = await db.get(["some-key"]);
assertEquals(entry.value, null);
assertEquals(entry.versionstamp, null);
} finally {
db.close();
}
},
});
Deno.test({
name: "remote backend invalid format",
async fn() {
const db = await Deno.openKv(
"http://localhost:4545/kv_remote_authorize_invalid_format",
);
await assertRejects(
async () => {
await db.set(["some-key"], 1);
},
Error,
"Failed to parse metadata: ",
);
db.close();
},
});
Deno.test({
name: "remote backend invalid version",
async fn() {
const db = await Deno.openKv(
"http://localhost:4545/kv_remote_authorize_invalid_version",
);
await assertRejects(
async () => {
await db.set(["some-key"], 1);
},
Error,
"Failed to parse metadata: unsupported metadata version: 1000",
);
db.close();
},
});
Deno.test(
{ permissions: { read: true } },
async function kvExplicitResourceManagement() {
let kv2: Deno.Kv;
{
using kv = await Deno.openKv(":memory:");
kv2 = kv;
const res = await kv.get(["a"]);
assertEquals(res.versionstamp, null);
}
await assertRejects(() => kv2.get(["a"]), Deno.errors.BadResource);
},
);
Deno.test(
{ permissions: { read: true } },
async function kvExplicitResourceManagementManualClose() {
using kv = await Deno.openKv(":memory:");
kv.close();
await assertRejects(() => kv.get(["a"]), Deno.errors.BadResource);
// calling [Symbol.dispose] after manual close is a no-op
},
);
dbTest("key watch", async (db) => {
const changeHistory: Deno.KvEntryMaybe<number>[] = [];
const watcher: ReadableStream<Deno.KvEntryMaybe<number>[]> = db.watch<
number[]
>([["key"]]);
const reader = watcher.getReader();
const expectedChanges = 2;
const work = (async () => {
for (let i = 0; i < expectedChanges; i++) {
const message = await reader.read();
if (message.done) {
throw new Error("Unexpected end of stream");
}
changeHistory.push(message.value[0]);
}
await reader.cancel();
})();
while (changeHistory.length !== 1) {
await sleep(100);
}
assertEquals(changeHistory[0], {
key: ["key"],
value: null,
versionstamp: null,
});
const { versionstamp } = await db.set(["key"], 1);
while (changeHistory.length as number !== 2) {
await sleep(100);
}
assertEquals(changeHistory[1], {
key: ["key"],
value: 1,
versionstamp,
});
await work;
await reader.cancel();
});