Export bunyan.resolveLevel(NAME-OR-NUM) to resolve a level name or number to its log level number value

CHANGES.md

@@ -2,7 +2,16 @@
 
 ## bunyan 0.13.3 (not yet released)
 
-(nothing yet)
+- Export `bunyan.resolveLevel(NAME-OR-NUM)` to resolve a level name or number
+  to its log level number value:
+  
+        > bunyan.resolveLevel('INFO')
+        30
+        > bunyan.resolveLevel('debug')
+        20
+  
+  A side-effect of this change is that the uppercase level name is now allowed
+  in the logger constructor.
 
 
 ## bunyan 0.13.2

lib/bunyan.js

@@ -156,9 +156,15 @@ var levelFromName = {
   'fatal': FATAL
 };
 
+
+/**
+ * Resolve a level number, name (upper or lowercase) to a level number value.
+ *
+ * @api public
+ */
 function resolveLevel(nameOrNum) {
   var level = (typeof (nameOrNum) === 'string'
-      ? levelFromName[nameOrNum]
+      ? levelFromName[nameOrNum.toLowerCase()]
       : nameOrNum);
   if (! (TRACE <= level && level <= FATAL)) {
     throw new Error('invalid level: ' + nameOrNum);
@@ -1072,6 +1078,7 @@ module.exports.INFO = INFO;
 module.exports.WARN = WARN;
 module.exports.ERROR = ERROR;
 module.exports.FATAL = FATAL;
+module.exports.resolveLevel = resolveLevel;
 
 module.exports.VERSION = VERSION;
 module.exports.LOG_VERSION = LOG_VERSION;

test/other-api.test.js

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2012 Trent Mick. All rights reserved.
+ *
+ * Test other parts of the exported API.
+ */
+
+var test = require('tap').test;
+var bunyan = require('../lib/bunyan');
+
+test('bunyan.<LEVEL>s', function (t) {
+  t.ok(bunyan.TRACE, 'TRACE');
+  t.ok(bunyan.DEBUG, 'DEBUG');
+  t.ok(bunyan.INFO, 'INFO');
+  t.ok(bunyan.WARN, 'WARN');
+  t.ok(bunyan.ERROR, 'ERROR');
+  t.ok(bunyan.FATAL, 'FATAL');
+  t.end();
+});
+
+test('bunyan.resolveLevel()', function (t) {
+  t.equal(bunyan.resolveLevel('trace'), bunyan.TRACE, 'TRACE');
+  t.equal(bunyan.resolveLevel('TRACE'), bunyan.TRACE, 'TRACE');
+  t.equal(bunyan.resolveLevel('debug'), bunyan.DEBUG, 'DEBUG');
+  t.equal(bunyan.resolveLevel('DEBUG'), bunyan.DEBUG, 'DEBUG');
+  t.equal(bunyan.resolveLevel('info'), bunyan.INFO, 'INFO');
+  t.equal(bunyan.resolveLevel('INFO'), bunyan.INFO, 'INFO');
+  t.equal(bunyan.resolveLevel('warn'), bunyan.WARN, 'WARN');
+  t.equal(bunyan.resolveLevel('WARN'), bunyan.WARN, 'WARN');
+  t.equal(bunyan.resolveLevel('error'), bunyan.ERROR, 'ERROR');
+  t.equal(bunyan.resolveLevel('ERROR'), bunyan.ERROR, 'ERROR');
+  t.equal(bunyan.resolveLevel('fatal'), bunyan.FATAL, 'FATAL');
+  t.equal(bunyan.resolveLevel('FATAL'), bunyan.FATAL, 'FATAL');
+  t.end();
+});
+