1 files changed, 19 insertions, 0 deletions
diff --git a/Libraries/LibWeb/Tests/Window/Base64.js b/Libraries/LibWeb/Tests/Window/Base64.js
new file mode 100644
index 0000000000..2cc12ea741
--- /dev/null
+++ b/Libraries/LibWeb/Tests/Window/Base64.js
@@ -0,0 +1,19 @@
+loadPage("file:///res/html/misc/blank.html");
+
+afterPageLoad(() => {
+    test("atob", () => {
+        expect(atob("YQ==")).toBe("a");
+        expect(atob("YWE=")).toBe("aa");
+        expect(atob("YWFh")).toBe("aaa");
+        expect(atob("YWFhYQ==")).toBe("aaaa");
+        expect(atob("/w==")).toBe("\xff");
+    });
+
+    test("btoa", () => {
+        expect(btoa("a")).toBe("YQ==");
+        expect(btoa("aa")).toBe("YWE=");
+        expect(btoa("aaa")).toBe("YWFh");
+        expect(btoa("aaaa")).toBe("YWFhYQ==");
+        expect(btoa("\xff")).toBe("/w==");
+    });
+});