1
0
Fork 0
mirror of https://github.com/denoland/deno.git synced 2024-12-20 14:24:48 -05:00
denoland-deno/tests/unit/text_encoding_test.ts
Matt Mastracci f5e46c9bf2
chore: move cli/tests/ -> tests/ (#22369)
This looks like a massive PR, but it's only a move from cli/tests ->
tests, and updates of relative paths for files.

This is the first step towards aggregate all of the integration test
files under tests/, which will lead to a set of integration tests that
can run without the CLI binary being built.

While we could leave these tests under `cli`, it would require us to
keep a more complex directory structure for the various test runners. In
addition, we have a lot of complexity to ignore various test files in
the `cli` project itself (cargo publish exclusion rules, autotests =
false, etc).

And finally, the `tests/` folder will eventually house the `test_ffi`,
`test_napi` and other testing code, reducing the size of the root repo
directory.

For easier review, the extremely large and noisy "move" is in the first
commit (with no changes -- just a move), while the remainder of the
changes to actual files is in the second commit.
2024-02-10 20:22:13 +00:00

326 lines
8.4 KiB
TypeScript
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import {
assert,
assertEquals,
assertStrictEquals,
assertThrows,
} from "./test_util.ts";
Deno.test(function btoaSuccess() {
const text = "hello world";
const encoded = btoa(text);
assertEquals(encoded, "aGVsbG8gd29ybGQ=");
});
Deno.test(function atobSuccess() {
const encoded = "aGVsbG8gd29ybGQ=";
const decoded = atob(encoded);
assertEquals(decoded, "hello world");
});
Deno.test(function atobWithAsciiWhitespace() {
const encodedList = [
" aGVsbG8gd29ybGQ=",
" aGVsbG8gd29ybGQ=",
"aGVsbG8gd29ybGQ= ",
"aGVsbG8gd29ybGQ=\n",
"aGVsbG\t8gd29ybGQ=",
`aGVsbG\t8g
d29ybGQ=`,
];
for (const encoded of encodedList) {
const decoded = atob(encoded);
assertEquals(decoded, "hello world");
}
});
Deno.test(function atobThrows() {
let threw = false;
try {
atob("aGVsbG8gd29ybGQ==");
} catch (_e) {
threw = true;
}
assert(threw);
});
Deno.test(function atobThrows2() {
let threw = false;
try {
atob("aGVsbG8gd29ybGQ===");
} catch (_e) {
threw = true;
}
assert(threw);
});
Deno.test(function atobThrows3() {
let threw = false;
try {
atob("foobar!!");
} catch (e) {
if (
e instanceof DOMException &&
e.toString().startsWith("InvalidCharacterError:")
) {
threw = true;
}
}
assert(threw);
});
Deno.test(function btoaFailed() {
const text = "你好";
assertThrows(() => {
btoa(text);
}, DOMException);
});
Deno.test(function textDecoder2() {
// deno-fmt-ignore
const fixture = new Uint8Array([
0xf0, 0x9d, 0x93, 0xbd,
0xf0, 0x9d, 0x93, 0xae,
0xf0, 0x9d, 0x94, 0x81,
0xf0, 0x9d, 0x93, 0xbd
]);
const decoder = new TextDecoder();
assertEquals(decoder.decode(fixture), "𝓽𝓮𝔁𝓽");
});
// ignoreBOM is tested through WPT
Deno.test(function textDecoderASCII() {
const fixture = new Uint8Array([0x89, 0x95, 0x9f, 0xbf]);
const decoder = new TextDecoder("ascii");
assertEquals(decoder.decode(fixture), "‰•Ÿ¿");
});
Deno.test(function textDecoderErrorEncoding() {
let didThrow = false;
try {
new TextDecoder("Foo");
} catch (e) {
didThrow = true;
assert(e instanceof Error);
assertEquals(e.message, "The encoding label provided ('Foo') is invalid.");
}
assert(didThrow);
});
Deno.test(function textEncoder() {
const fixture = "𝓽𝓮𝔁𝓽";
const encoder = new TextEncoder();
// deno-fmt-ignore
assertEquals(Array.from(encoder.encode(fixture)), [
0xf0, 0x9d, 0x93, 0xbd,
0xf0, 0x9d, 0x93, 0xae,
0xf0, 0x9d, 0x94, 0x81,
0xf0, 0x9d, 0x93, 0xbd
]);
});
Deno.test(function textEncodeInto() {
const fixture = "text";
const encoder = new TextEncoder();
const bytes = new Uint8Array(5);
const result = encoder.encodeInto(fixture, bytes);
assertEquals(result.read, 4);
assertEquals(result.written, 4);
// deno-fmt-ignore
assertEquals(Array.from(bytes), [
0x74, 0x65, 0x78, 0x74, 0x00,
]);
});
Deno.test(function textEncodeInto2() {
const fixture = "𝓽𝓮𝔁𝓽";
const encoder = new TextEncoder();
const bytes = new Uint8Array(17);
const result = encoder.encodeInto(fixture, bytes);
assertEquals(result.read, 8);
assertEquals(result.written, 16);
// deno-fmt-ignore
assertEquals(Array.from(bytes), [
0xf0, 0x9d, 0x93, 0xbd,
0xf0, 0x9d, 0x93, 0xae,
0xf0, 0x9d, 0x94, 0x81,
0xf0, 0x9d, 0x93, 0xbd, 0x00,
]);
});
Deno.test(function textEncodeInto3() {
const fixture = "𝓽𝓮𝔁𝓽";
const encoder = new TextEncoder();
const bytes = new Uint8Array(5);
const result = encoder.encodeInto(fixture, bytes);
assertEquals(result.read, 2);
assertEquals(result.written, 4);
// deno-fmt-ignore
assertEquals(Array.from(bytes), [
0xf0, 0x9d, 0x93, 0xbd, 0x00,
]);
});
Deno.test(function loneSurrogateEncodeInto() {
const fixture = "lone𝄞\ud888surrogate";
const encoder = new TextEncoder();
const bytes = new Uint8Array(20);
const result = encoder.encodeInto(fixture, bytes);
assertEquals(result.read, 16);
assertEquals(result.written, 20);
// deno-fmt-ignore
assertEquals(Array.from(bytes), [
0x6c, 0x6f, 0x6e, 0x65,
0xf0, 0x9d, 0x84, 0x9e,
0xef, 0xbf, 0xbd, 0x73,
0x75, 0x72, 0x72, 0x6f,
0x67, 0x61, 0x74, 0x65
]);
});
Deno.test(function loneSurrogateEncodeInto2() {
const fixture = "\ud800";
const encoder = new TextEncoder();
const bytes = new Uint8Array(3);
const result = encoder.encodeInto(fixture, bytes);
assertEquals(result.read, 1);
assertEquals(result.written, 3);
// deno-fmt-ignore
assertEquals(Array.from(bytes), [
0xef, 0xbf, 0xbd
]);
});
Deno.test(function loneSurrogateEncodeInto3() {
const fixture = "\udc00";
const encoder = new TextEncoder();
const bytes = new Uint8Array(3);
const result = encoder.encodeInto(fixture, bytes);
assertEquals(result.read, 1);
assertEquals(result.written, 3);
// deno-fmt-ignore
assertEquals(Array.from(bytes), [
0xef, 0xbf, 0xbd
]);
});
Deno.test(function swappedSurrogatePairEncodeInto4() {
const fixture = "\udc00\ud800";
const encoder = new TextEncoder();
const bytes = new Uint8Array(8);
const result = encoder.encodeInto(fixture, bytes);
assertEquals(result.read, 2);
assertEquals(result.written, 6);
// deno-fmt-ignore
assertEquals(Array.from(bytes), [
0xef, 0xbf, 0xbd, 0xef, 0xbf, 0xbd, 0x00, 0x00
]);
});
Deno.test(function textDecoderSharedUint8Array() {
const ab = new SharedArrayBuffer(6);
const dataView = new DataView(ab);
const charCodeA = "A".charCodeAt(0);
for (let i = 0; i < ab.byteLength; i++) {
dataView.setUint8(i, charCodeA + i);
}
const ui8 = new Uint8Array(ab);
const decoder = new TextDecoder();
const actual = decoder.decode(ui8);
assertEquals(actual, "ABCDEF");
});
Deno.test(function textDecoderSharedInt32Array() {
const ab = new SharedArrayBuffer(8);
const dataView = new DataView(ab);
const charCodeA = "A".charCodeAt(0);
for (let i = 0; i < ab.byteLength; i++) {
dataView.setUint8(i, charCodeA + i);
}
const i32 = new Int32Array(ab);
const decoder = new TextDecoder();
const actual = decoder.decode(i32);
assertEquals(actual, "ABCDEFGH");
});
Deno.test(function toStringShouldBeWebCompatibility() {
const encoder = new TextEncoder();
assertEquals(encoder.toString(), "[object TextEncoder]");
const decoder = new TextDecoder();
assertEquals(decoder.toString(), "[object TextDecoder]");
});
Deno.test(function textEncoderShouldCoerceToString() {
const encoder = new TextEncoder();
const fixtureText = "text";
const fixture = {
toString() {
return fixtureText;
},
};
const bytes = encoder.encode(fixture as unknown as string);
const decoder = new TextDecoder();
const decoded = decoder.decode(bytes);
assertEquals(decoded, fixtureText);
});
Deno.test(function binaryEncode() {
// @ts-ignore: Deno[Deno.internal].core allowed
const core = Deno[Deno.internal].core;
function asBinaryString(bytes: Uint8Array): string {
return Array.from(bytes).map(
(v: number) => String.fromCodePoint(v),
).join("");
}
function decodeBinary(binaryString: string) {
const chars: string[] = Array.from(binaryString);
return chars.map((v: string): number | undefined => v.codePointAt(0));
}
const inputs = [
"σ😀",
"Кириллица is Cyrillic",
"𝓽𝓮𝔁𝓽",
"lone𝄞\ud888surrogate",
"\udc00\ud800",
"\ud800",
];
for (const input of inputs) {
const bytes = new TextEncoder().encode(input);
const binaryString = core.encodeBinaryString(bytes);
assertEquals(
binaryString,
asBinaryString(bytes),
);
assertEquals(Array.from(bytes), decodeBinary(binaryString));
}
});
Deno.test(
{ permissions: { read: true } },
async function textDecoderStreamCleansUpOnCancel() {
let cancelled = false;
const readable = new ReadableStream({
start: (controller) => {
controller.enqueue(new Uint8Array(12));
},
cancel: () => {
cancelled = true;
},
}).pipeThrough(new TextDecoderStream());
const chunks = [];
for await (const chunk of readable) {
chunks.push(chunk);
// breaking out of the loop prevents normal shutdown at end of async iterator values and triggers the cancel method of the stream instead
break;
}
assertEquals(chunks.length, 1);
assertEquals(chunks[0].length, 12);
assertStrictEquals(cancelled, true);
},
);