tls: migrate argument type-checking errors

* Throw ERR_INVALID_ARG_TYPE from public APIs
* Assert argument types in bindings instead of throwing errors

PR-URL: https://github.com/nodejs/node/pull/18125
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

2 files changed, 37 insertions, 2 deletions

diff --git a/test/parallel/test-tls-basic-validations.js b/test/parallel/test-tls-basic-validations.js
index fc2743ce04..501cfd91d0 100644
--- a/test/parallel/test-tls-basic-validations.js
+++ b/test/parallel/test-tls-basic-validations.js
@@ -39,8 +39,13 @@ assert.throws(() => tls.createServer({ ticketKeys: 'abcd' }),
 assert.throws(() => tls.createServer({ ticketKeys: Buffer.alloc(0) }),
               /TypeError: Ticket keys length must be 48 bytes/);
 
-assert.throws(() => tls.createSecurePair({}),
-              /TypeError: Second argument should be a SecureContext instance/);
+common.expectsError(
+  () => tls.createSecurePair({}),
+  {
+    code: 'ERR_ASSERTION',
+    message: 'context.context must be a NativeSecureContext'
+  }
+);
 
 {
   const buffer = Buffer.from('abcd');
diff --git a/test/parallel/test-tls-error-servername.js b/test/parallel/test-tls-error-servername.js
new file mode 100644
index 0000000000..5c1960fce3
--- /dev/null
+++ b/test/parallel/test-tls-error-servername.js
@@ -0,0 +1,30 @@
+'use strict';
+
+// This tests the errors thrown from TLSSocket.prototype.setServername
+
+const common = require('../common');
+const fixtures = require('../common/fixtures');
+
+if (!common.hasCrypto)
+  common.skip('missing crypto');
+
+const { connect } = require('tls');
+const makeDuplexPair = require('../common/duplexpair');
+const { clientSide } = makeDuplexPair();
+
+const ca = fixtures.readKey('ca1-cert.pem');
+
+const client = connect({
+  socket: clientSide,
+  ca,
+  host: 'agent1'  // Hostname from certificate
+});
+
+[undefined, null, 1, true, {}].forEach((value) => {
+  common.expectsError(() => {
+    client.setServername(value);
+  }, {
+    code: 'ERR_INVALID_ARG_TYPE',
+    message: 'The "name" argument must be of type string'
+  });
+});