1 files changed, 45 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/truthies.js b/js/src/jit-test/tests/basic/truthies.js
new file mode 100644
index 0000000000..af8e6097be
--- /dev/null
+++ b/js/src/jit-test/tests/basic/truthies.js
@@ -0,0 +1,45 @@
+load(libdir + 'andTestHelper.js');
+load(libdir + 'orTestHelper.js');
+
+function source(x) {
+  switch (typeof x) {
+    case "number":
+    case "boolean":
+      return String(x);
+    case "undefined":
+      return "(void 0)";
+    case "string":
+      return JSON.stringify(x);
+    case "object":
+      if (x === null) {
+        return "null";
+      }
+      return `(${JSON.stringify(x)})`;
+    default:
+      throw new Error("not implemented: " + typeof x);
+  }
+}
+
+(function () {
+   var opsies   = ["||", "&&"];
+   var falsies  = [null, undefined, false, NaN, 0, ""];
+   var truthies = [{}, true, 1, 42, 1/0, -1/0, "blah"];
+   var boolies  = [falsies, truthies];
+
+   for (var op of opsies) {
+     for (var i in boolies) {
+       for (var j in boolies[i]) {
+	 var x = source(boolies[i][j]);
+	 for (var k in boolies) {
+	   for (var l in boolies[k]) {
+	     var y = source(boolies[k][l]);
+	     var prefix = (op == "||") ? "or" : "and";
+	     var f = new Function("return " + prefix + "TestHelper(" + x + "," + y + ",10)");
+	     var expected = eval(x + op + y) ? 45 : 0;
+	     assertEq(f(), expected);
+	   }
+	 }
+       }
+     }
+   }
+ })();