add tests and ci rules

__test__/trust.spec.ts

@@ -0,0 +1,42 @@
+import test from "ava";
+
+import {
+  generateRootCa,
+  generateClientCertificate,
+  verifyClientCertificate,
+} from "../index.js";
+
+test("generate ca", (t) => {
+  const [pub, priv] = generateRootCa();
+  t.pass();
+});
+
+test("generate ca & client certs", (t) => {
+  const [pub, priv] = generateRootCa();
+
+  const clientName = "My Test Client";
+  const [clientPub, clientPriv] = generateClientCertificate(
+    clientName,
+    clientName,
+    pub,
+    priv
+  );
+
+  t.pass();
+});
+
+test("trust chain", (t) => {
+  const [pub, priv] = generateRootCa();
+
+  const clientName = "My Test Client";
+  const [clientPub, clientPriv] = generateClientCertificate(
+    clientName,
+    clientName,
+    pub,
+    priv
+  );
+
+  const valid = verifyClientCertificate(clientPub, pub);
+  if (valid) return t.pass();
+  return t.fail();
+});