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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/non262/RegExp/lastIndex-match-or-replace.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/RegExp/lastIndex-match-or-replace.js | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/js/src/tests/non262/RegExp/lastIndex-match-or-replace.js b/js/src/tests/non262/RegExp/lastIndex-match-or-replace.js new file mode 100644 index 0000000000..8d7703c459 --- /dev/null +++ b/js/src/tests/non262/RegExp/lastIndex-match-or-replace.js @@ -0,0 +1,123 @@ +// RegExp.prototype[Symbol.match, Symbol.replace]: Test lastIndex changes for ES2017. + +// RegExp-like class to test the RegExp method slow paths. +class DuckRegExp extends RegExp { + constructor(pattern, flags) { + return Object.create(DuckRegExp.prototype, { + regExp: { + value: new RegExp(pattern, flags) + }, + lastIndex: { + value: 0, writable: true, enumerable: false, configurable: false + } + }); + } + + exec(...args) { + this.regExp.lastIndex = this.lastIndex; + try { + return this.regExp.exec(...args); + } finally { + if (this.global || this.sticky) + this.lastIndex = this.regExp.lastIndex; + } + } + + get source() { return this.regExp.source; } + + get flags() { return this.regExp.flags; } + get global() { return this.regExp.global; } + get ignoreCase() { return this.regExp.ignoreCase; } + get multiline() { return this.regExp.multiline; } + get sticky() { return this.regExp.sticky; } + get unicode() { return this.regExp.unicode; } +} + +// Test various combinations of: +// - Pattern matches or doesn't match +// - Global and/or sticky flag is set. +// - lastIndex exceeds the input string length +// - lastIndex is +-0 +const testCases = [ + { regExp: /a/, lastIndex: 0, input: "a", result: 0 }, + { regExp: /a/g, lastIndex: 0, input: "a", result: 0 }, + { regExp: /a/y, lastIndex: 0, input: "a", result: 1 }, + + { regExp: /a/, lastIndex: 0, input: "b", result: 0 }, + { regExp: /a/g, lastIndex: 0, input: "b", result: 0 }, + { regExp: /a/y, lastIndex: 0, input: "b", result: 0 }, + + { regExp: /a/, lastIndex: -0, input: "a", result: -0 }, + { regExp: /a/g, lastIndex: -0, input: "a", result: 0 }, + { regExp: /a/y, lastIndex: -0, input: "a", result: 1 }, + + { regExp: /a/, lastIndex: -0, input: "b", result: -0 }, + { regExp: /a/g, lastIndex: -0, input: "b", result: 0 }, + { regExp: /a/y, lastIndex: -0, input: "b", result: 0 }, + + { regExp: /a/, lastIndex: -1, input: "a", result: -1 }, + { regExp: /a/g, lastIndex: -1, input: "a", result: 0 }, + { regExp: /a/y, lastIndex: -1, input: "a", result: 1 }, + + { regExp: /a/, lastIndex: -1, input: "b", result: -1 }, + { regExp: /a/g, lastIndex: -1, input: "b", result: 0 }, + { regExp: /a/y, lastIndex: -1, input: "b", result: 0 }, + + { regExp: /a/, lastIndex: 100, input: "a", result: 100 }, + { regExp: /a/g, lastIndex: 100, input: "a", result: 0 }, + { regExp: /a/y, lastIndex: 100, input: "a", result: 0 }, +]; + +for (let method of [RegExp.prototype[Symbol.match], RegExp.prototype[Symbol.replace]]) { + for (let Constructor of [RegExp, DuckRegExp]) { + // Basic test. + for (let {regExp, lastIndex, input, result} of testCases) { + let re = new Constructor(regExp); + re.lastIndex = lastIndex; + Reflect.apply(method, re, [input]); + assertEq(re.lastIndex, result); + } + + // Test when lastIndex is non-writable. + for (let {regExp, lastIndex, input} of testCases) { + let re = new Constructor(regExp); + Object.defineProperty(re, "lastIndex", { value: lastIndex, writable: false }); + if (re.global || re.sticky) { + assertThrowsInstanceOf(() => Reflect.apply(method, re, [input]), TypeError); + } else { + Reflect.apply(method, re, [input]); + } + assertEq(re.lastIndex, lastIndex); + } + + // Test when lastIndex is changed to non-writable as a side-effect. + for (let {regExp, lastIndex, input, result} of testCases) { + let re = new Constructor(regExp); + let called = false; + re.lastIndex = { + valueOf() { + assertEq(called, false); + called = true; + Object.defineProperty(re, "lastIndex", { value: 9000, writable: false }); + return lastIndex; + } + }; + if (re.sticky) { + assertThrowsInstanceOf(() => Reflect.apply(method, re, [input]), TypeError); + assertEq(called, true); + assertEq(re.lastIndex, 9000); + } else if (re.global) { + Reflect.apply(method, re, [input]); + assertEq(called, false); + assertEq(re.lastIndex, result); + } else { + Reflect.apply(method, re, [input]); + assertEq(called, true); + assertEq(re.lastIndex, 9000); + } + } + } +} + +if (typeof reportCompare === "function") + reportCompare(true, true); |