-
Notifications
You must be signed in to change notification settings - Fork 577
/
json_stringify_stream_test.ts
77 lines (71 loc) · 1.86 KB
/
json_stringify_stream_test.ts
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { assertEquals, assertRejects } from "../assert/mod.ts";
import {
JsonStringifyStream,
type StringifyStreamOptions,
} from "./json_stringify_stream.ts";
async function assertValidStringify(
transformer: typeof JsonStringifyStream,
chunks: unknown[],
expect: string[],
options?: StringifyStreamOptions,
) {
const r = ReadableStream.from(chunks)
.pipeThrough(new transformer(options));
const res = await Array.fromAsync(r);
assertEquals(res, expect);
}
async function assertInvalidStringify(
transformer: typeof JsonStringifyStream,
chunks: unknown[],
options: StringifyStreamOptions,
// deno-lint-ignore no-explicit-any
ErrorClass: new (...args: any[]) => Error,
msgIncludes: string | undefined,
) {
const r = ReadableStream.from(chunks)
.pipeThrough(new transformer(options));
await assertRejects(
async () => await Array.fromAsync(r),
ErrorClass,
msgIncludes,
);
}
Deno.test({
name: "JsonStringifyStream",
async fn() {
await assertValidStringify(
JsonStringifyStream,
[{ foo: "bar" }, { foo: "bar" }],
['{"foo":"bar"}\n', '{"foo":"bar"}\n'],
);
},
});
Deno.test({
name: "JsonStringifyStream throws on error",
async fn() {
const cyclic: Record<string, unknown> = {};
cyclic.cyclic = cyclic;
await assertInvalidStringify(
JsonStringifyStream,
[cyclic],
{},
TypeError,
"Converting circular structure to JSON",
);
},
});
Deno.test({
name: "JsonStringifyStream handles prefix and suffix",
async fn() {
await assertValidStringify(
JsonStringifyStream,
[{ foo: "bar" }, { foo: "bar" }],
[
'[[prefix]]{"foo":"bar"}[[suffix]]',
'[[prefix]]{"foo":"bar"}[[suffix]]',
],
{ prefix: "[[prefix]]", suffix: "[[suffix]]" },
);
},
});