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Add some more text decoder tests

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This commit is contained in:
Jarred Sumner
2022-12-05 11:19:45 -08:00
parent c114956788
commit 9665d7d216
1 changed files with 33 additions and 0 deletions
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33
test/bun.js/text-decoder.test.js
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@@ -101,3 +101,36 @@ describe("TextDecoder", () => {
gcTrace(true);
});
});
it("truncated sequences", () => {
const assert_equals = (a, b) => expect(a).toBe(b);
// Truncated sequences
assert_equals(new TextDecoder().decode(new Uint8Array([0xf0])), "\uFFFD");
assert_equals(
new TextDecoder().decode(new Uint8Array([0xf0, 0x9f])),
"\uFFFD",
);
assert_equals(
new TextDecoder().decode(new Uint8Array([0xf0, 0x9f, 0x92])),
"\uFFFD",
);
// Errors near end-of-queue
assert_equals(
new TextDecoder().decode(new Uint8Array([0xf0, 0x9f, 0x41])),
"\uFFFDA",
);
assert_equals(
new TextDecoder().decode(new Uint8Array([0xf0, 0x41, 0x42])),
"\uFFFDAB",
);
assert_equals(
new TextDecoder().decode(new Uint8Array([0xf0, 0x41, 0xf0])),
"\uFFFDA\uFFFD",
);
assert_equals(
new TextDecoder().decode(new Uint8Array([0xf0, 0x8f, 0x92])),
"\uFFFD\uFFFD\uFFFD",
);
});