1 files changed, 71 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/spread-call-maxarg.js b/js/src/jit-test/tests/basic/spread-call-maxarg.js
new file mode 100644
index 0000000000..5ba6eef558
--- /dev/null
+++ b/js/src/jit-test/tests/basic/spread-call-maxarg.js
@@ -0,0 +1,71 @@
+// FIXME: ASAN and debug builds run this too slowly for now.
+if (!getBuildConfiguration("debug") && !getBuildConfiguration("asan")) {
+    let longArray = [];
+    longArray.length = getMaxArgs() + 1;
+    let shortArray = [];
+    let a;
+
+    let f = function() {
+    };
+
+    // Call_Scripted
+    //   Optimized stub is used after some calls.
+    a = shortArray;
+    for (let i = 0; i < 4; i++) {
+        if (i == 3) {
+            a = longArray;
+        }
+        try {
+            f(...a);
+        } catch (e) {
+            assertEq(e.message, "too many function arguments");
+        }
+    }
+
+    // Call_Scripted (constructing)
+    a = shortArray;
+    for (let i = 0; i < 4; i++) {
+        if (i == 3) {
+            a = longArray;
+        }
+        try {
+            new f(...a);
+        } catch (e) {
+            assertEq(e.message, "too many constructor arguments");
+        }
+    }
+
+    // Call_Native
+    a = shortArray;
+    for (let i = 0; i < 4; i++) {
+        if (i == 3) {
+            a = longArray;
+        }
+        try {
+            Math.max(...a);
+        } catch (e) {
+            assertEq(e.message, "too many function arguments");
+        }
+    }
+
+    // Call_Native (constructing)
+    a = shortArray;
+    for (let i = 0; i < 4; i++) {
+        if (i == 3) {
+            a = longArray;
+        }
+        try {
+            new Date(...a);
+        } catch (e) {
+            assertEq(e.message, "too many constructor arguments");
+        }
+    }
+
+    // No optimized stub for eval.
+    a = longArray;
+    try {
+        eval(...a);
+    } catch (e) {
+        assertEq(e.message, "too many function arguments");
+    }
+}