diff --git a/Libraries/LibJS/Tests/Array.js b/Libraries/LibJS/Tests/Array.js
index 87cd168e35c..519bb54d8b6 100644
--- a/Libraries/LibJS/Tests/Array.js
+++ b/Libraries/LibJS/Tests/Array.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     assert(Array.length === 1);
     assert(Array.prototype.length === 0);
diff --git a/Libraries/LibJS/Tests/Array.prototype.pop.js b/Libraries/LibJS/Tests/Array.prototype.pop.js
index 4cb895f5ab5..c6ce64554be 100644
--- a/Libraries/LibJS/Tests/Array.prototype.pop.js
+++ b/Libraries/LibJS/Tests/Array.prototype.pop.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var a = [1, 2, 3];
     var value = a.pop();
diff --git a/Libraries/LibJS/Tests/Array.prototype.shift.js b/Libraries/LibJS/Tests/Array.prototype.shift.js
index 14945562991..97f748744b0 100644
--- a/Libraries/LibJS/Tests/Array.prototype.shift.js
+++ b/Libraries/LibJS/Tests/Array.prototype.shift.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var a = [1, 2, 3];
     var value = a.shift();
diff --git a/Libraries/LibJS/Tests/Date.now.js b/Libraries/LibJS/Tests/Date.now.js
index 53eb00d6bbf..5459242cd4b 100644
--- a/Libraries/LibJS/Tests/Date.now.js
+++ b/Libraries/LibJS/Tests/Date.now.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var last = 0;
     for (var i = 0; i < 100; ++i) {
diff --git a/Libraries/LibJS/Tests/Date.prototype.getDate.js b/Libraries/LibJS/Tests/Date.prototype.getDate.js
index d8a9df88a37..e70dc7623c6 100644
--- a/Libraries/LibJS/Tests/Date.prototype.getDate.js
+++ b/Libraries/LibJS/Tests/Date.prototype.getDate.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var d = new Date();
     assert(!isNaN(d.getDate()));
diff --git a/Libraries/LibJS/Tests/Date.prototype.getDay.js b/Libraries/LibJS/Tests/Date.prototype.getDay.js
index 572dd57b737..631f386ae36 100644
--- a/Libraries/LibJS/Tests/Date.prototype.getDay.js
+++ b/Libraries/LibJS/Tests/Date.prototype.getDay.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var d = new Date();
     assert(!isNaN(d.getDay()));
diff --git a/Libraries/LibJS/Tests/Date.prototype.getFullYear.js b/Libraries/LibJS/Tests/Date.prototype.getFullYear.js
index 1f5b9a443d5..6a102f23956 100644
--- a/Libraries/LibJS/Tests/Date.prototype.getFullYear.js
+++ b/Libraries/LibJS/Tests/Date.prototype.getFullYear.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var d = new Date();
     assert(!isNaN(d.getFullYear()));
diff --git a/Libraries/LibJS/Tests/Date.prototype.getHours.js b/Libraries/LibJS/Tests/Date.prototype.getHours.js
index 799e1e2247e..b09e000a6e1 100644
--- a/Libraries/LibJS/Tests/Date.prototype.getHours.js
+++ b/Libraries/LibJS/Tests/Date.prototype.getHours.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var d = new Date();
     assert(!isNaN(d.getHours()));
diff --git a/Libraries/LibJS/Tests/Date.prototype.getMilliseconds.js b/Libraries/LibJS/Tests/Date.prototype.getMilliseconds.js
index 04f7e82b401..95f9d199161 100644
--- a/Libraries/LibJS/Tests/Date.prototype.getMilliseconds.js
+++ b/Libraries/LibJS/Tests/Date.prototype.getMilliseconds.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var d = new Date();
     assert(!isNaN(d.getMilliseconds()));
diff --git a/Libraries/LibJS/Tests/Date.prototype.getMinutes.js b/Libraries/LibJS/Tests/Date.prototype.getMinutes.js
index 13910bbd994..bf09c0278e4 100644
--- a/Libraries/LibJS/Tests/Date.prototype.getMinutes.js
+++ b/Libraries/LibJS/Tests/Date.prototype.getMinutes.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var d = new Date();
     assert(!isNaN(d.getMinutes()));
diff --git a/Libraries/LibJS/Tests/Date.prototype.getMonth.js b/Libraries/LibJS/Tests/Date.prototype.getMonth.js
index 4ece401aca3..a6503b9b324 100644
--- a/Libraries/LibJS/Tests/Date.prototype.getMonth.js
+++ b/Libraries/LibJS/Tests/Date.prototype.getMonth.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var d = new Date();
     assert(!isNaN(d.getMonth()));
diff --git a/Libraries/LibJS/Tests/Date.prototype.getSeconds.js b/Libraries/LibJS/Tests/Date.prototype.getSeconds.js
index b3cd3524733..e96272f9d60 100644
--- a/Libraries/LibJS/Tests/Date.prototype.getSeconds.js
+++ b/Libraries/LibJS/Tests/Date.prototype.getSeconds.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var d = new Date();
     assert(!isNaN(d.getSeconds()));
diff --git a/Libraries/LibJS/Tests/Date.prototype.getTime.js b/Libraries/LibJS/Tests/Date.prototype.getTime.js
index 4f1da2db8d6..a7a54ee3fc5 100644
--- a/Libraries/LibJS/Tests/Date.prototype.getTime.js
+++ b/Libraries/LibJS/Tests/Date.prototype.getTime.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var d = new Date();
     assert(!isNaN(d.getTime()));
diff --git a/Libraries/LibJS/Tests/Error.js b/Libraries/LibJS/Tests/Error.js
index 713fc4e884c..ddf78f28a9a 100644
--- a/Libraries/LibJS/Tests/Error.js
+++ b/Libraries/LibJS/Tests/Error.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var e;
 
diff --git a/Libraries/LibJS/Tests/Error.prototype.toString.js b/Libraries/LibJS/Tests/Error.prototype.toString.js
index cc0b8185c0b..88a785fc235 100644
--- a/Libraries/LibJS/Tests/Error.prototype.toString.js
+++ b/Libraries/LibJS/Tests/Error.prototype.toString.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     assert(Error().toString() === "Error");
     assert(Error(undefined).toString() === "Error");
diff --git a/Libraries/LibJS/Tests/Function.js b/Libraries/LibJS/Tests/Function.js
index 5618aa52195..1f4b232b6be 100644
--- a/Libraries/LibJS/Tests/Function.js
+++ b/Libraries/LibJS/Tests/Function.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     assert(Function.length === 1);
     assert(Function.prototype.length === 0);
diff --git a/Libraries/LibJS/Tests/Function.prototype.apply.js b/Libraries/LibJS/Tests/Function.prototype.apply.js
index 22d14194ff7..04f2fbd71b2 100644
--- a/Libraries/LibJS/Tests/Function.prototype.apply.js
+++ b/Libraries/LibJS/Tests/Function.prototype.apply.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     function Foo(arg) {
         this.foo = arg;
diff --git a/Libraries/LibJS/Tests/Function.prototype.call.js b/Libraries/LibJS/Tests/Function.prototype.call.js
index da24707511a..30e7725896b 100644
--- a/Libraries/LibJS/Tests/Function.prototype.call.js
+++ b/Libraries/LibJS/Tests/Function.prototype.call.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     function Foo(arg) {
         this.foo = arg;
diff --git a/Libraries/LibJS/Tests/Function.prototype.toString.js b/Libraries/LibJS/Tests/Function.prototype.toString.js
index a1fd3c7252e..0d52bc79405 100644
--- a/Libraries/LibJS/Tests/Function.prototype.toString.js
+++ b/Libraries/LibJS/Tests/Function.prototype.toString.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     assert((function() {}).toString() === "function () {\n  ???\n}");
     assert((function(foo) {}).toString() === "function (foo) {\n  ???\n}");
diff --git a/Libraries/LibJS/Tests/Infinity-basic.js b/Libraries/LibJS/Tests/Infinity-basic.js
index c86ff0114de..33164410f49 100644
--- a/Libraries/LibJS/Tests/Infinity-basic.js
+++ b/Libraries/LibJS/Tests/Infinity-basic.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     assert(Infinity + "" === "Infinity");
     assert(-Infinity + "" === "-Infinity");
diff --git a/Libraries/LibJS/Tests/Math-constants.js b/Libraries/LibJS/Tests/Math-constants.js
index aeb224920f3..35940775cb3 100644
--- a/Libraries/LibJS/Tests/Math-constants.js
+++ b/Libraries/LibJS/Tests/Math-constants.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 // FIXME: The parser seems to have issues with decimals,
 // so we multiply everything and compare with whole numbers.
 // I.e. 1233 < X * 1000 < 1235 instead of 1.233 < X < 1.235
diff --git a/Libraries/LibJS/Tests/Math.abs.js b/Libraries/LibJS/Tests/Math.abs.js
index 5224f168cbd..0c2ed1e0ab6 100644
--- a/Libraries/LibJS/Tests/Math.abs.js
+++ b/Libraries/LibJS/Tests/Math.abs.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     assert(Math.abs('-1') === 1);
     assert(Math.abs(-2) === 2);
diff --git a/Libraries/LibJS/Tests/Math.ceil.js b/Libraries/LibJS/Tests/Math.ceil.js
index a8507c5eb65..9ed8ff89604 100644
--- a/Libraries/LibJS/Tests/Math.ceil.js
+++ b/Libraries/LibJS/Tests/Math.ceil.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     assert(Math.ceil(0.95) === 1);
     assert(Math.ceil(4) === 4);
diff --git a/Libraries/LibJS/Tests/Math.max.js b/Libraries/LibJS/Tests/Math.max.js
index dc4e8569ebc..1f27e1775cc 100644
--- a/Libraries/LibJS/Tests/Math.max.js
+++ b/Libraries/LibJS/Tests/Math.max.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     assert(Math.max.length === 2);
     assert(Math.max(1) === 1);
diff --git a/Libraries/LibJS/Tests/Math.sqrt.js b/Libraries/LibJS/Tests/Math.sqrt.js
index c8574d71cf2..07a57e6507d 100644
--- a/Libraries/LibJS/Tests/Math.sqrt.js
+++ b/Libraries/LibJS/Tests/Math.sqrt.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     assert(Math.sqrt(9) === 3);
     console.log("PASS");
diff --git a/Libraries/LibJS/Tests/Math.trunc.js b/Libraries/LibJS/Tests/Math.trunc.js
index 29a9f1ad2a4..ec2bf0c5370 100644
--- a/Libraries/LibJS/Tests/Math.trunc.js
+++ b/Libraries/LibJS/Tests/Math.trunc.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     assert(Math.trunc(13.37) === 13);
     assert(Math.trunc(42.84) === 42);
diff --git a/Libraries/LibJS/Tests/NaN-basic.js b/Libraries/LibJS/Tests/NaN-basic.js
index b0f2956c725..b9a02bc4252 100644
--- a/Libraries/LibJS/Tests/NaN-basic.js
+++ b/Libraries/LibJS/Tests/NaN-basic.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var nan = undefined + 1;
     assert(nan + "" == "NaN");
diff --git a/Libraries/LibJS/Tests/Object.getOwnPropertyNames.js b/Libraries/LibJS/Tests/Object.getOwnPropertyNames.js
index a9673c03cf0..990dbf28011 100644
--- a/Libraries/LibJS/Tests/Object.getOwnPropertyNames.js
+++ b/Libraries/LibJS/Tests/Object.getOwnPropertyNames.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var names = Object.getOwnPropertyNames([1, 2, 3]);
 
diff --git a/Libraries/LibJS/Tests/Object.getPrototypeOf.js b/Libraries/LibJS/Tests/Object.getPrototypeOf.js
index 6b48fc28b8f..08ccc6a0da8 100644
--- a/Libraries/LibJS/Tests/Object.getPrototypeOf.js
+++ b/Libraries/LibJS/Tests/Object.getPrototypeOf.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var o1 = new Object();
     var o2 = {};
diff --git a/Libraries/LibJS/Tests/Object.prototype.hasOwnProperty.js b/Libraries/LibJS/Tests/Object.prototype.hasOwnProperty.js
index 9a47401bf5a..225394939fe 100644
--- a/Libraries/LibJS/Tests/Object.prototype.hasOwnProperty.js
+++ b/Libraries/LibJS/Tests/Object.prototype.hasOwnProperty.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var o = {};
     o.foo = 1;
diff --git a/Libraries/LibJS/Tests/Object.prototype.js b/Libraries/LibJS/Tests/Object.prototype.js
index 237de47a986..0d794442d5e 100644
--- a/Libraries/LibJS/Tests/Object.prototype.js
+++ b/Libraries/LibJS/Tests/Object.prototype.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var o = new Object();
     Object.prototype.foo = 123;
diff --git a/Libraries/LibJS/Tests/Object.prototype.toString.js b/Libraries/LibJS/Tests/Object.prototype.toString.js
index a56a3778708..2672b70f1b4 100644
--- a/Libraries/LibJS/Tests/Object.prototype.toString.js
+++ b/Libraries/LibJS/Tests/Object.prototype.toString.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     assert(typeof Object.prototype.toString() === "string");
     console.log("PASS");
diff --git a/Libraries/LibJS/Tests/String.prototype.charAt.js b/Libraries/LibJS/Tests/String.prototype.charAt.js
index 741e89e2ec0..994fed659d4 100644
--- a/Libraries/LibJS/Tests/String.prototype.charAt.js
+++ b/Libraries/LibJS/Tests/String.prototype.charAt.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var s = "foobar"
     assert(typeof s === "string");
diff --git a/Libraries/LibJS/Tests/String.prototype.indexOf.js b/Libraries/LibJS/Tests/String.prototype.indexOf.js
index 3c84a4ece8b..117093b61eb 100644
--- a/Libraries/LibJS/Tests/String.prototype.indexOf.js
+++ b/Libraries/LibJS/Tests/String.prototype.indexOf.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var s = "hello friends"
 
diff --git a/Libraries/LibJS/Tests/String.prototype.startsWith.js b/Libraries/LibJS/Tests/String.prototype.startsWith.js
index 38ac98d4a2d..fe7c5116815 100644
--- a/Libraries/LibJS/Tests/String.prototype.startsWith.js
+++ b/Libraries/LibJS/Tests/String.prototype.startsWith.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var s = "foobar";
     assert(s.startsWith("f") === true);
diff --git a/Libraries/LibJS/Tests/array-basic.js b/Libraries/LibJS/Tests/array-basic.js
index cc06f8925aa..7298fab6721 100644
--- a/Libraries/LibJS/Tests/array-basic.js
+++ b/Libraries/LibJS/Tests/array-basic.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var a = [1, 2, 3];
 
diff --git a/Libraries/LibJS/Tests/arrow-functions.js b/Libraries/LibJS/Tests/arrow-functions.js
index 3d2569d099a..5d4f118a7cb 100644
--- a/Libraries/LibJS/Tests/arrow-functions.js
+++ b/Libraries/LibJS/Tests/arrow-functions.js
@@ -1,4 +1,3 @@
-function assert(x) { if (!x) throw 1; }
 try {
   let getNumber = () => 42;
   assert(getNumber() === 42);
diff --git a/Libraries/LibJS/Tests/binary-bitwise-operators-basic.js b/Libraries/LibJS/Tests/binary-bitwise-operators-basic.js
index 81a772d9e6f..704a00349eb 100644
--- a/Libraries/LibJS/Tests/binary-bitwise-operators-basic.js
+++ b/Libraries/LibJS/Tests/binary-bitwise-operators-basic.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     assert((0 | 0) === 0);
     assert((0 | 1) === 1);
diff --git a/Libraries/LibJS/Tests/continue-basic.js b/Libraries/LibJS/Tests/continue-basic.js
index eda0648f08d..a0d59cdeb60 100644
--- a/Libraries/LibJS/Tests/continue-basic.js
+++ b/Libraries/LibJS/Tests/continue-basic.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var j = 0;
     for (var i = 0; i < 9; ++i) {
diff --git a/Libraries/LibJS/Tests/do-while-basic.js b/Libraries/LibJS/Tests/do-while-basic.js
index f0ca39136f4..5ca6d50791c 100644
--- a/Libraries/LibJS/Tests/do-while-basic.js
+++ b/Libraries/LibJS/Tests/do-while-basic.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var number = 0;
     do {
diff --git a/Libraries/LibJS/Tests/exception-ReferenceError.js b/Libraries/LibJS/Tests/exception-ReferenceError.js
index 2fe47e25a97..b26804a3169 100644
--- a/Libraries/LibJS/Tests/exception-ReferenceError.js
+++ b/Libraries/LibJS/Tests/exception-ReferenceError.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) console.log("FAIL"); }
-
 try {
     i < 3;
 } catch (e) {
diff --git a/Libraries/LibJS/Tests/for-basic.js b/Libraries/LibJS/Tests/for-basic.js
index b7fcb5b1e66..c68c2b99722 100644
--- a/Libraries/LibJS/Tests/for-basic.js
+++ b/Libraries/LibJS/Tests/for-basic.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var a = [];
     for (var i = 0; i < 3; ++i) {
diff --git a/Libraries/LibJS/Tests/for-no-curlies.js b/Libraries/LibJS/Tests/for-no-curlies.js
index 817aea2fbb2..8c54819a2d9 100644
--- a/Libraries/LibJS/Tests/for-no-curlies.js
+++ b/Libraries/LibJS/Tests/for-no-curlies.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var number = 0;
 
diff --git a/Libraries/LibJS/Tests/function-TypeError.js b/Libraries/LibJS/Tests/function-TypeError.js
index 204fc7e495d..1939e01f069 100644
--- a/Libraries/LibJS/Tests/function-TypeError.js
+++ b/Libraries/LibJS/Tests/function-TypeError.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     try {
         var b = true;
diff --git a/Libraries/LibJS/Tests/function-length.js b/Libraries/LibJS/Tests/function-length.js
index e24f08e4907..7a3e69cc32e 100644
--- a/Libraries/LibJS/Tests/function-length.js
+++ b/Libraries/LibJS/Tests/function-length.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     function foo() { }
     assert(foo.length === 0);
diff --git a/Libraries/LibJS/Tests/function-missing-arg.js b/Libraries/LibJS/Tests/function-missing-arg.js
index 8bef98e4f60..48810a38e76 100644
--- a/Libraries/LibJS/Tests/function-missing-arg.js
+++ b/Libraries/LibJS/Tests/function-missing-arg.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 function foo(a, b) { return a + b; }
 
 try {
diff --git a/Libraries/LibJS/Tests/function-this-in-arguments.js b/Libraries/LibJS/Tests/function-this-in-arguments.js
index 23bf80937cf..efa8d6bfea3 100644
--- a/Libraries/LibJS/Tests/function-this-in-arguments.js
+++ b/Libraries/LibJS/Tests/function-this-in-arguments.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
   assert(typeof this === "object");
   assert(this === global);
diff --git a/Libraries/LibJS/Tests/instanceof-basic.js b/Libraries/LibJS/Tests/instanceof-basic.js
index 5fa9805aa6a..0db8dbdc0a2 100644
--- a/Libraries/LibJS/Tests/instanceof-basic.js
+++ b/Libraries/LibJS/Tests/instanceof-basic.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     function Foo() {
         this.x = 123;
diff --git a/Libraries/LibJS/Tests/logical-expressions-basic.js b/Libraries/LibJS/Tests/logical-expressions-basic.js
index 58d05e1111c..de7ff65fd70 100644
--- a/Libraries/LibJS/Tests/logical-expressions-basic.js
+++ b/Libraries/LibJS/Tests/logical-expressions-basic.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     assert((true && true) === true);
     assert((false && false) === false);
diff --git a/Libraries/LibJS/Tests/logical-expressions-short-circuit.js b/Libraries/LibJS/Tests/logical-expressions-short-circuit.js
index 105281f62fb..a666255ac71 100644
--- a/Libraries/LibJS/Tests/logical-expressions-short-circuit.js
+++ b/Libraries/LibJS/Tests/logical-expressions-short-circuit.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     let foo = 1;
     false && (foo = 2);
diff --git a/Libraries/LibJS/Tests/modulo-basic.js b/Libraries/LibJS/Tests/modulo-basic.js
index 7d0e894405a..4f35c2b3eab 100644
--- a/Libraries/LibJS/Tests/modulo-basic.js
+++ b/Libraries/LibJS/Tests/modulo-basic.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     assert(10 % 3 === 1);
     assert(10.5 % 2.5 === 0.5);
diff --git a/Libraries/LibJS/Tests/parser-unary-associativity.js b/Libraries/LibJS/Tests/parser-unary-associativity.js
index baa38e0850f..1bc9b05f8e6 100644
--- a/Libraries/LibJS/Tests/parser-unary-associativity.js
+++ b/Libraries/LibJS/Tests/parser-unary-associativity.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var o = {};
     o.a = 1;
diff --git a/Libraries/LibJS/Tests/run-tests b/Libraries/LibJS/Tests/run-tests
index fbe8951bb0f..346039fef18 100755
--- a/Libraries/LibJS/Tests/run-tests
+++ b/Libraries/LibJS/Tests/run-tests
@@ -14,7 +14,7 @@ fail_count=0
 count=0
 
 for f in *.js; do
-    result=`$js_program $f`
+    result=`$js_program -t $f`
     if [ "$result" = "PASS" ]; then
         let pass_count++
         echo -ne "( \033[32;1mPass\033[0m ) "
diff --git a/Libraries/LibJS/Tests/switch-break.js b/Libraries/LibJS/Tests/switch-break.js
index 976e102092a..2b57f027230 100644
--- a/Libraries/LibJS/Tests/switch-break.js
+++ b/Libraries/LibJS/Tests/switch-break.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var i = 0;
     var three;
diff --git a/Libraries/LibJS/Tests/ternary-basic.js b/Libraries/LibJS/Tests/ternary-basic.js
index 62de660275f..72aad183695 100644
--- a/Libraries/LibJS/Tests/ternary-basic.js
+++ b/Libraries/LibJS/Tests/ternary-basic.js
@@ -1,10 +1,8 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var x = 1;
 
     assert(x === 1 ? true : false);
-    assert(x ? x : 0);
+    assert((x ? x : 0) === x);
     assert(1 < 2 ? (true) : (false));
 
     var o = {};
diff --git a/Libraries/LibJS/Tests/throw-basic.js b/Libraries/LibJS/Tests/throw-basic.js
index 6cf2c0fe58a..6751d01d386 100644
--- a/Libraries/LibJS/Tests/throw-basic.js
+++ b/Libraries/LibJS/Tests/throw-basic.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) console.log("FAIL"); }
-
 try {
     throw 1;
 } catch (e) {
diff --git a/Libraries/LibJS/Tests/to-number-basic.js b/Libraries/LibJS/Tests/to-number-basic.js
index a2e87ce5278..ad5c31ad768 100644
--- a/Libraries/LibJS/Tests/to-number-basic.js
+++ b/Libraries/LibJS/Tests/to-number-basic.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     assert(+false === 0);
     assert(-false === 0);
diff --git a/Libraries/LibJS/Tests/typeof-basic.js b/Libraries/LibJS/Tests/typeof-basic.js
index 110d01dcb61..ee0d67eaa39 100644
--- a/Libraries/LibJS/Tests/typeof-basic.js
+++ b/Libraries/LibJS/Tests/typeof-basic.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     assert(typeof "foo" === "string");
     assert(!(typeof "foo" !== "string"));
diff --git a/Libraries/LibJS/Tests/var-multiple-declarator.js b/Libraries/LibJS/Tests/var-multiple-declarator.js
index 79098eb68e2..49c76e276b2 100644
--- a/Libraries/LibJS/Tests/var-multiple-declarator.js
+++ b/Libraries/LibJS/Tests/var-multiple-declarator.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 try {
     var a = 1, b = 2, c = a + b;
     assert(a === 1);
diff --git a/Libraries/LibJS/Tests/variable-undefined.js b/Libraries/LibJS/Tests/variable-undefined.js
index 61ee23a0d55..1ad67efb414 100644
--- a/Libraries/LibJS/Tests/variable-undefined.js
+++ b/Libraries/LibJS/Tests/variable-undefined.js
@@ -1,5 +1,3 @@
-function assert(x) { if (!x) throw 1; }
-
 function foo(a) {
     return a;
 }