diff --git a/test/sodium.tests.ts b/test/sodium.test.ts
similarity index 93%
rename from test/sodium.tests.ts
rename to test/sodium.test.ts
index 74524b2..cafa577 100644
--- a/test/sodium.tests.ts
+++ b/test/sodium.test.ts
@@ -138,4 +138,14 @@ test("crypto_kx", () => {
 
     expect(clientKeys.rx).toEqual(serverKeys.tx);
     expect(clientKeys.tx).toEqual(serverKeys.rx);
+});
+
+test("crypto_secretbox", () => {
+    let message = sodium.from_string('Science, math, technology, engineering, and compassion for others.');
+    let key = sodium.crypto_secretbox_keygen();
+    let nonce = sodium.randombytes_buf(sodium.crypto_secretbox_NONCEBYTES);
+
+    let ciphertext = sodium.crypto_secretbox_easy(message, nonce, key);
+    let decrypted = sodium.crypto_secretbox_open_easy(ciphertext, nonce, key);
+    expect(decrypted).toEqual(message);
 });
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