diff --git a/src/tests/lib/regexTest.ts b/src/tests/lib/regexTest.ts
new file mode 100644
index 0000000..41ee872
--- /dev/null
+++ b/src/tests/lib/regexTest.ts
@@ -0,0 +1,20 @@
+import {expect} from "chai";
+import {describe, it} from "mocha";
+import {is} from "../../lib/regex";
+
+describe("regex", () => {
+    describe("email", () => {
+        it("identifies right emails", () => {
+            const result = is.email("trivernis@mail.com");
+            expect(result).to.equal(true);
+        });
+        it("identifies non-email urls", () => {
+            const result = is.email("notanemail.com");
+            expect(result).to.equal(false);
+        });
+        it("identifies malformed emails", () => {
+            const result = is.email("trivernis@mail.");
+            expect(result).to.equal(false);
+        });
+    });
+});