Fix colorize not working in non-TTY environments

lib/winston/config.js

@@ -8,6 +8,9 @@
 
 var colors = require('colors/safe');
 
+// Fix colors not appearing in non-tty environments
+colors.enabled = true;
+
 var config = exports,
     allColors = exports.allColors = {};
 

package.json

@@ -27,6 +27,7 @@
     "stack-trace": "0.0.x"
   },
   "devDependencies": {
+    "cross-spawn-async": "^2.0.0",
     "hock": "1.x.x",
     "std-mocks": "~1.0.0",
     "vows": "0.7.x"

test/colorize-test.js

@@ -0,0 +1,43 @@
+/*
+ * colorize-test.js: Tests for colorizing in non-TTY environments.
+ *
+ * (C) 2015 Tom Spencer
+ * MIT LICENSE
+ *
+ */
+
+var path = require('path'),
+    vows = require('vows'),
+    assert = require('assert'),
+    winston = require('../lib/winston'),
+    spawn = require('cross-spawn-async');
+
+var spawnTest = function(colorize, cb) {
+  var data = '';
+  var ps = spawn(process.execPath, [path.join(__dirname, 'fixtures', 'scripts', 'colorize.js'), colorize], { stdio: 'pipe' });
+
+  ps.stdout.on('data', function(buf) {
+    data += buf.toString();
+  });
+
+  ps.on('close', function() {
+    cb(null, data);
+  });
+};
+
+vows.describe('winston/colorize').addBatch({
+  "When using winston in a non-TTY environment": {
+    "the logger when setup with colorize: true": {
+      topic: function() { spawnTest(true, this.callback) },
+      "should colorize": function (log) {
+        assert.strictEqual(log, '\u001b[32minfo\u001b[39m: Simply a test\n');
+      }
+    },
+    "the logger when setup with colorize: false": {
+      topic: function() { spawnTest(false, this.callback) },
+      "should not colorize": function (log) {
+        assert.strictEqual(log, 'info: Simply a test\n');
+      }
+    }
+  }
+}).export(module);

test/fixtures/scripts/colorize.js

@@ -0,0 +1,16 @@
+/*
+ * colorize.js: A test fixture for logging colorized messages
+ *
+ * (C) 2015 Tom Spencer
+ * MIT LICENCE
+ *
+ */
+
+var winston = require('../../../lib/winston');
+
+var logger = new (winston.Logger)({
+    transports: [
+      new winston.transports.Console({ colorize: process.argv[2] === 'true' })
+    ]
+  });
+logger.info('Simply a test');