1test(() => {
2  // Truncated sequences
3  assert_equals(new TextDecoder().decode(new Uint8Array([0xF0])), "\uFFFD");
4  assert_equals(new TextDecoder().decode(new Uint8Array([0xF0, 0x9F])), "\uFFFD");
5  assert_equals(new TextDecoder().decode(new Uint8Array([0xF0, 0x9F, 0x92])), "\uFFFD");
6
7  // Errors near end-of-queue
8  assert_equals(new TextDecoder().decode(new Uint8Array([0xF0, 0x9F, 0x41])), "\uFFFDA");
9  assert_equals(new TextDecoder().decode(new Uint8Array([0xF0, 0x41, 0x42])), "\uFFFDAB");
10  assert_equals(new TextDecoder().decode(new Uint8Array([0xF0, 0x41, 0xF0])), "\uFFFDA\uFFFD");
11  assert_equals(new TextDecoder().decode(new Uint8Array([0xF0, 0x8F, 0x92])), "\uFFFD\uFFFD\uFFFD");
12}, "TextDecoder end-of-queue handling");
13
14test(() => {
15  const decoder = new TextDecoder();
16  decoder.decode(new Uint8Array([0xF0]), { stream: true });
17  assert_equals(decoder.decode(), "\uFFFD");
18
19  decoder.decode(new Uint8Array([0xF0]), { stream: true });
20  decoder.decode(new Uint8Array([0x9F]), { stream: true });
21  assert_equals(decoder.decode(), "\uFFFD");
22
23  decoder.decode(new Uint8Array([0xF0, 0x9F]), { stream: true });
24  assert_equals(decoder.decode(new Uint8Array([0x92])), "\uFFFD");
25
26  assert_equals(decoder.decode(new Uint8Array([0xF0, 0x9F]), { stream: true }), "");
27  assert_equals(decoder.decode(new Uint8Array([0x41]), { stream: true }), "\uFFFDA");
28  assert_equals(decoder.decode(), "");
29
30  assert_equals(decoder.decode(new Uint8Array([0xF0, 0x41, 0x42]), { stream: true }), "\uFFFDAB");
31  assert_equals(decoder.decode(), "");
32
33  assert_equals(decoder.decode(new Uint8Array([0xF0, 0x41, 0xF0]), { stream: true }), "\uFFFDA");
34  assert_equals(decoder.decode(), "\uFFFD");
35
36  assert_equals(decoder.decode(new Uint8Array([0xF0]), { stream: true }), "");
37  assert_equals(decoder.decode(new Uint8Array([0x8F]), { stream: true }), "\uFFFD\uFFFD");
38  assert_equals(decoder.decode(new Uint8Array([0x92]), { stream: true }), "\uFFFD");
39  assert_equals(decoder.decode(), "");
40}, "TextDecoder end-of-queue handling using stream: true");
41