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-rw-r--r--js/src/tests/ecma_6/RegExp/split-trace.js229
1 files changed, 229 insertions, 0 deletions
diff --git a/js/src/tests/ecma_6/RegExp/split-trace.js b/js/src/tests/ecma_6/RegExp/split-trace.js
new file mode 100644
index 000000000..ce6e410d9
--- /dev/null
+++ b/js/src/tests/ecma_6/RegExp/split-trace.js
@@ -0,0 +1,229 @@
+var BUGNUMBER = 887016;
+var summary = "Trace RegExp.prototype[@@split] behavior.";
+
+print(BUGNUMBER + ": " + summary);
+
+var n;
+var log;
+var target;
+var flags;
+var expectedFlags;
+
+var execResult;
+var lastIndexResult;
+var lastIndexExpected;
+
+var arraySetterObserved = false;
+function startObserve() {
+ for (var i = 0; i < 10; i++) {
+ Object.defineProperty(Array.prototype, i, {
+ set: function(v) {
+ arraySetterObserved = true;
+ },
+ configurable: true,
+ });
+ }
+}
+function stopObserve() {
+ for (var i = 0; i < 10; i++)
+ delete Array.prototype[i]
+}
+
+startObserve();
+
+function P(A) {
+ return new Proxy(A, {
+ get(that, name) {
+ log += "get:result[" + name + "],";
+ return that[name];
+ }
+ });
+}
+
+var myRegExp = {
+ get constructor() {
+ log += "get:constructor,";
+ return {
+ get [Symbol.species]() {
+ log += "get:species,";
+ return function(pattern, flags) {
+ assertEq(pattern, myRegExp);
+ assertEq(flags, expectedFlags);
+ log += "call:constructor,";
+ return {
+ get lastIndex() {
+ log += "get:lastIndex,";
+ return lastIndexResult[n];
+ },
+ set lastIndex(v) {
+ log += "set:lastIndex,";
+ assertEq(v, lastIndexExpected[n]);
+ },
+ get flags() {
+ log += "get:flags,";
+ return flags;
+ },
+ get exec() {
+ log += "get:exec,";
+ return function(S) {
+ log += "call:exec,";
+ assertEq(S, target);
+ return execResult[n++];
+ };
+ },
+ };
+ };
+ }
+ };
+ },
+ get flags() {
+ log += "get:flags,";
+ return flags;
+ },
+};
+
+function reset() {
+ n = 0;
+ log = "";
+ target = "abcde";
+ flags = "";
+ expectedFlags = "y";
+ arraySetterObserved = false;
+}
+
+// Trace match and no match.
+reset();
+execResult = [ null, P(["b"]), null, P(["d"]), null ];
+lastIndexResult = [ , , 2, , 4, , ];
+lastIndexExpected = [ 0, 1, 2, 3, 4, ];
+var ret = RegExp.prototype[Symbol.split].call(myRegExp, target);
+assertEq(arraySetterObserved, false);
+assertEq(JSON.stringify(ret), `["a","c","e"]`);
+assertEq(log,
+ "get:constructor," +
+ "get:species," +
+ "get:flags," +
+ "call:constructor," +
+ "set:lastIndex,get:exec,call:exec," +
+ "set:lastIndex,get:exec,call:exec,get:lastIndex," +
+ "get:result[length]," +
+ "set:lastIndex,get:exec,call:exec," +
+ "set:lastIndex,get:exec,call:exec,get:lastIndex," +
+ "get:result[length]," +
+ "set:lastIndex,get:exec,call:exec,");
+
+// Trace non-empty flags, empty target, no match.
+reset();
+flags = "iy";
+expectedFlags = "iy";
+target = "";
+execResult = [ null ];
+lastIndexResult = [];
+lastIndexExpected = [];
+ret = RegExp.prototype[Symbol.split].call(myRegExp, target);
+assertEq(arraySetterObserved, false);
+assertEq(JSON.stringify(ret), `[""]`);
+assertEq(log,
+ "get:constructor," +
+ "get:species," +
+ "get:flags," +
+ "call:constructor," +
+ "get:exec,call:exec,");
+
+// Trace empty target, match.
+reset();
+target = "";
+execResult = [ P([""]) ];
+lastIndexResult = [];
+lastIndexExpected = [];
+ret = RegExp.prototype[Symbol.split].call(myRegExp, target);
+assertEq(arraySetterObserved, false);
+assertEq(JSON.stringify(ret), `[]`);
+assertEq(log,
+ "get:constructor," +
+ "get:species," +
+ "get:flags," +
+ "call:constructor," +
+ "get:exec,call:exec,");
+
+// Trace captures.
+reset();
+target = "abc";
+execResult = [ null, P(["b", "X", "YZ"]), null ];
+lastIndexResult = [ , , 2, , ];
+lastIndexExpected = [ 0, 1, 2, ];
+ret = RegExp.prototype[Symbol.split].call(myRegExp, target);
+assertEq(arraySetterObserved, false);
+assertEq(JSON.stringify(ret), `["a","X","YZ","c"]`);
+assertEq(log,
+ "get:constructor," +
+ "get:species," +
+ "get:flags," +
+ "call:constructor," +
+ "set:lastIndex,get:exec,call:exec," +
+ "set:lastIndex,get:exec,call:exec,get:lastIndex," +
+ "get:result[length]," +
+ "get:result[1],get:result[2]," +
+ "set:lastIndex,get:exec,call:exec,");
+
+// Trace unicode.
+// 1. not surrogate pair
+// 2. lead surrogate pair
+// 3. trail surrogate pair
+// 4. lead surrogate pair without trail surrogate pair
+// 5. index overflow
+reset();
+flags = "u";
+expectedFlags = "uy";
+target = "-\uD83D\uDC38\uDC38\uD83D";
+execResult = [ null, null, null, null ];
+lastIndexResult = [ , , , , , ];
+lastIndexExpected = [ 0, 1, 3, 4, ];
+ret = RegExp.prototype[Symbol.split].call(myRegExp, target);
+assertEq(arraySetterObserved, false);
+assertEq(JSON.stringify(ret), `["-\uD83D\uDC38\uDC38\uD83D"]`);
+assertEq(log,
+ "get:constructor," +
+ "get:species," +
+ "get:flags," +
+ "call:constructor," +
+ "set:lastIndex,get:exec,call:exec," +
+ "set:lastIndex,get:exec,call:exec," +
+ "set:lastIndex,get:exec,call:exec," +
+ "set:lastIndex,get:exec,call:exec,");
+
+// Trace unicode, match, same position and different position.
+reset();
+flags = "u";
+expectedFlags = "uy";
+target = "-\uD83D\uDC38\uDC38\uD83D";
+var E = P(["", "X"]);
+execResult = [ E, E, E, E, E, E, E ];
+lastIndexResult = [ , 0, 1, 1, 3, 3, 4, 4 ];
+lastIndexExpected = [ 0, 1, 1, 3, 3, 4, 4, ];
+ret = RegExp.prototype[Symbol.split].call(myRegExp, target);
+assertEq(arraySetterObserved, false);
+assertEq(JSON.stringify(ret), `["-","X","\uD83D\uDC38","X","\uDC38","X","\uD83D"]`);
+assertEq(log,
+ "get:constructor," +
+ "get:species," +
+ "get:flags," +
+ "call:constructor," +
+ "set:lastIndex,get:exec,call:exec,get:lastIndex," +
+ "set:lastIndex,get:exec,call:exec,get:lastIndex," +
+ "get:result[length]," +
+ "get:result[1]," +
+ "set:lastIndex,get:exec,call:exec,get:lastIndex," +
+ "set:lastIndex,get:exec,call:exec,get:lastIndex," +
+ "get:result[length]," +
+ "get:result[1]," +
+ "set:lastIndex,get:exec,call:exec,get:lastIndex," +
+ "set:lastIndex,get:exec,call:exec,get:lastIndex," +
+ "get:result[length]," +
+ "get:result[1]," +
+ "set:lastIndex,get:exec,call:exec,get:lastIndex,");
+
+stopObserve();
+
+if (typeof reportCompare === "function")
+ reportCompare(true, true);