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41 lines
1.4 KiB
JavaScript
41 lines
1.4 KiB
JavaScript
// Copyright (C) 2025 ayuan. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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description: Verify decodeURIComponent throws URIError for various invalid UTF-8 sequences
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esid: sec-decodeuricomponent-encodeduricomponent
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info: |
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Invalid sequences include:
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- Surrogate pair encoding
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- Overlong encoding
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- Invalid continuation bytes
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- Incomplete sequences
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- Out-of-range code points
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Reference: https://stackoverflow.com/a/1319229/172999
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---*/
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// CHECK#1: Reserved surrogate pair (U+D800-DFFF)
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assert.throws(URIError, function CHECK1() {
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decodeURIComponent('%ED%BF%BF');
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}, '#1: %ED%BF%BF (surrogate pair) should throw URIError');
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// CHECK#2: Overlong encoding for ASCII character
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assert.throws(URIError, function CHECK2() {
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decodeURIComponent('%C0%AF');
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}, '#2: %C0%AF (overlong encoding) should throw URIError');
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// CHECK#3: Invalid continuation byte pattern
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assert.throws(URIError, function CHECK3() {
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decodeURIComponent('%ED%7F%BF');
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}, '#3: %ED%7F%BF (invalid continuation) should throw URIError');
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// CHECK#4: Incomplete 3-byte sequence
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assert.throws(URIError, function CHECK4() {
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decodeURIComponent('%ED%BF');
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}, '#4: %ED%BF (incomplete sequence) should throw URIError');
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// CHECK#5: Code point beyond U+10FFFF
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assert.throws(URIError, function CHECK5() {
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decodeURIComponent('%F4%90%80%80');
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},'#5: %F4%90%80%80 (out-of-range) should throw URIError');
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