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-rw-r--r--js/src/tests/non262/class/newTargetArgumentsIntact.js44
1 files changed, 44 insertions, 0 deletions
diff --git a/js/src/tests/non262/class/newTargetArgumentsIntact.js b/js/src/tests/non262/class/newTargetArgumentsIntact.js
new file mode 100644
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+++ b/js/src/tests/non262/class/newTargetArgumentsIntact.js
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+// Since we put new.target at the end of the arguments vector, ensrue that it
+// doesn't interact with the arguments object
+
+var argsContent;
+
+function argsWithNewTarget(foo) {
+ assertEq(arguments.length, argsContent.length);
+ for (let i = 0; i < arguments.length; i++)
+ assertEq(arguments[i], argsContent[i]);
+ let nt = new.target;
+
+ // Assigning to the arguments object shouldn't infect new.target, either
+ arguments[arguments.length] = 42;
+ assertEq(new.target, nt);
+}
+
+// Test constructing invocations, with under and overflow
+argsContent = [];
+for (let i = 0; i < 100; i++)
+ new argsWithNewTarget();
+
+argsContent = [1];
+for (let i = 0; i < 100; i++)
+ new argsWithNewTarget(1);
+
+argsContent = [1,2,3];
+for (let i = 0; i < 100; i++)
+ new argsWithNewTarget(1, 2, 3);
+
+// Test spreadnew as well.
+argsContent = [];
+for (let i = 0; i < 100; i++)
+ new argsWithNewTarget(...[]);
+
+argsContent = [1];
+for (let i = 0; i < 100; i++)
+ new argsWithNewTarget(...[1]);
+
+argsContent = [1,2,3];
+for (let i = 0; i < 100; i++)
+ new argsWithNewTarget(...[1,2,3]);
+
+if (typeof reportCompare === "function")
+ reportCompare(0,0,"OK");