test: test crypto (P)RNG functions

Author: bnoordhuis

test/simple/test-crypto-random.js

@@ -0,0 +1,70 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+var common = require('../common');
+var assert = require('assert');
+
+try {
+  var crypto = require('crypto');
+} catch (e) {
+  console.log('Not compiled with OPENSSL support.');
+  process.exit();
+}
+
+// bump, we register a lot of exit listeners
+process.setMaxListeners(256);
+
+[ crypto.randomBytes,
+  crypto.pseudoRandomBytes
+].forEach(function(f) {
+  [ -1,
+    undefined,
+    null,
+    false,
+    true,
+    {},
+    []
+  ].forEach(function(value) {
+    assert.throws(function() { f(value); });
+    assert.throws(function() { f(value, function(){}); });
+  });
+
+  [0, 1, 2, 4, 16, 256, 1024].forEach(function(len) {
+    f(len, checkCall(function(ex, buf) {
+      assert.equal(null, ex);
+      assert.equal(len, buf.length);
+      assert.ok(Buffer.isBuffer(buf));
+    }));
+  });
+});
+
+// assert that the callback is indeed called
+function checkCall(cb, desc) {
+  var called_ = false;
+
+  process.on('exit', function() {
+    assert.equal(true, called_, desc || ('callback not called: ' + cb));
+  });
+
+  return function() {
+    return called_ = true, cb.apply(cb, Array.prototype.slice.call(arguments));
+  };
+}