1 files changed, 31 insertions, 0 deletions
diff --git a/Userland/Libraries/LibJS/Tests/builtins/BigInt/bigint-number-mix-errors.js b/Userland/Libraries/LibJS/Tests/builtins/BigInt/bigint-number-mix-errors.js
new file mode 100644
index 0000000000..de80b92b3a
--- /dev/null
+++ b/Userland/Libraries/LibJS/Tests/builtins/BigInt/bigint-number-mix-errors.js
@@ -0,0 +1,31 @@
+const doTest = (operatorName, executeOperation) => {
+    [1, null, undefined].forEach(value => {
+        const messageSuffix = operatorName === "unsigned right-shift" ? "" : " and other type";
+
+        expect(() => {
+            executeOperation(1n, value);
+        }).toThrowWithMessage(
+            TypeError,
+            `Cannot use ${operatorName} operator with BigInt${messageSuffix}`
+        );
+    });
+};
+
+[
+    ["addition", (a, b) => a + b],
+    ["subtraction", (a, b) => a - b],
+    ["multiplication", (a, b) => a * b],
+    ["division", (a, b) => a / b],
+    ["modulo", (a, b) => a % b],
+    ["exponentiation", (a, b) => a ** b],
+    ["bitwise OR", (a, b) => a | b],
+    ["bitwise AND", (a, b) => a & b],
+    ["bitwise XOR", (a, b) => a ^ b],
+    ["left-shift", (a, b) => a << b],
+    ["right-shift", (a, b) => a >> b],
+    ["unsigned right-shift", (a, b) => a >>> b],
+].forEach(testCase => {
+    test(`using ${testCase[0]} operator with BigInt and other type`, () => {
+        doTest(testCase[0], testCase[1]);
+    });
+});