test: refactor all tests that depends on crypto

we had a few ways versions of looking for support before executing a test. this
commit unifies them as well as add the check for all tests that previously
lacked them. found by running `./configure --without-ssl && make test`. also,
produce tap skip output if the test is skipped.

PR-URL: https://github.com/iojs/io.js/pull/1049
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Shigeki Ohtsu <ohtsu@iij.ad.jp>

1 files changed, 7 insertions, 2 deletions

diff --git a/test/parallel/test-tls-sni-server-client.js b/test/parallel/test-tls-sni-server-client.js
index 668f6228e5..7a1d09b9c2 100644
--- a/test/parallel/test-tls-sni-server-client.js
+++ b/test/parallel/test-tls-sni-server-client.js
@@ -6,8 +6,13 @@ if (!process.features.tls_sni) {
 
 var common = require('../common'),
     assert = require('assert'),
-    fs = require('fs'),
-    tls = require('tls');
+    fs = require('fs');
+
+if (!common.hasCrypto) {
+  console.log('1..0 # Skipped: missing crypto');
+  process.exit();
+}
+var tls = require('tls');
 
 function filenamePEM(n) {
   return require('path').join(common.fixturesDir, 'keys', n + '.pem');