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-rw-r--r--js/src/tests/non262/RegExp/lastIndex-search.js118
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diff --git a/js/src/tests/non262/RegExp/lastIndex-search.js b/js/src/tests/non262/RegExp/lastIndex-search.js
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+// RegExp.prototype[Symbol.search]: 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 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 testCasesNotPositiveZero = [
+ { regExp: /a/, lastIndex: -1, input: "a" },
+ { regExp: /a/g, lastIndex: -1, input: "a" },
+ { regExp: /a/y, lastIndex: -1, input: "a" },
+
+ { regExp: /a/, lastIndex: 100, input: "a" },
+ { regExp: /a/g, lastIndex: 100, input: "a" },
+ { regExp: /a/y, lastIndex: 100, input: "a" },
+
+ { regExp: /a/, lastIndex: -1, input: "b" },
+ { regExp: /a/g, lastIndex: -1, input: "b" },
+ { regExp: /a/y, lastIndex: -1, input: "b" },
+
+ { regExp: /a/, lastIndex: -0, input: "a" },
+ { regExp: /a/g, lastIndex: -0, input: "a" },
+ { regExp: /a/y, lastIndex: -0, input: "a" },
+
+ { regExp: /a/, lastIndex: -0, input: "b" },
+ { regExp: /a/g, lastIndex: -0, input: "b" },
+ { regExp: /a/y, lastIndex: -0, input: "b" },
+];
+
+const testCasesPositiveZero = [
+ { regExp: /a/, lastIndex: 0, input: "a" },
+ { regExp: /a/g, lastIndex: 0, input: "a" },
+ { regExp: /a/y, lastIndex: 0, input: "a" },
+
+ { regExp: /a/, lastIndex: 0, input: "b" },
+ { regExp: /a/g, lastIndex: 0, input: "b" },
+ { regExp: /a/y, lastIndex: 0, input: "b" },
+];
+
+const testCases = [...testCasesNotPositiveZero, ...testCasesPositiveZero];
+
+for (let Constructor of [RegExp, DuckRegExp]) {
+ // Basic test.
+ for (let {regExp, lastIndex, input} of testCases) {
+ let re = new Constructor(regExp);
+ re.lastIndex = lastIndex;
+ re[Symbol.search](input);
+ assertEq(re.lastIndex, lastIndex);
+ }
+
+ // Test when lastIndex is non-writable and not positive zero.
+ for (let {regExp, lastIndex, input} of testCasesNotPositiveZero) {
+ let re = new Constructor(regExp);
+ Object.defineProperty(re, "lastIndex", { value: lastIndex, writable: false });
+ assertThrowsInstanceOf(() => re[Symbol.search](input), TypeError);
+ assertEq(re.lastIndex, lastIndex);
+ }
+
+ // Test when lastIndex is non-writable and positive zero.
+ for (let {regExp, lastIndex, input} of testCasesPositiveZero) {
+ let re = new Constructor(regExp);
+ Object.defineProperty(re, "lastIndex", { value: lastIndex, writable: false });
+ if (re.global || re.sticky) {
+ assertThrowsInstanceOf(() => re[Symbol.search](input), TypeError);
+ } else {
+ re[Symbol.search](input);
+ }
+ assertEq(re.lastIndex, lastIndex);
+ }
+
+ // Test lastIndex isn't converted to a number.
+ for (let {regExp, lastIndex, input} of testCases) {
+ let re = new RegExp(regExp);
+ let badIndex = {
+ valueOf() {
+ assertEq(false, true);
+ }
+ };
+ re.lastIndex = badIndex;
+ re[Symbol.search](input);
+ assertEq(re.lastIndex, badIndex);
+ }
+}
+
+if (typeof reportCompare === "function")
+ reportCompare(true, true);