Force setEdition / has to normalize (by lowercasing) (#3)

Force setEdition / has to normalize (by lowercasing)

Author: rwjblue

index.js

@@ -6,7 +6,7 @@
   @param {string} editionName the Edition name that your application is authored in
 */
 function setEdition(editionName) {
-  process.env.EMBER_EDITION = editionName;
+  process.env.EMBER_EDITION = editionName.toLowerCase();
 }
 
 /**
@@ -38,7 +38,9 @@ function _getEdition() {
     }
   }
 
-  return edition;
+  if (edition) {
+    return edition.toLowerCase();
+  }
 }
 
 /**
@@ -51,7 +53,8 @@ function _getEdition() {
 
   @param {string} requestedEditionName the Edition name that the application/addon is requesting
 */
-function has(requestedEditionName) {
+function has(_requestedEditionName) {
+  let requestedEditionName = _requestedEditionName.toLowerCase();
   let edition = _getEdition();
 
   if (requestedEditionName === 'classic') {

test.js

@@ -24,6 +24,12 @@ QUnit.module('@ember/edition-utils', function(hooks) {
 
       assert.strictEqual(getEdition(), 'octane');
     });
+
+    test('normalizes the edition name that is passed in (lowercasing)', function(assert) {
+      setEdition('OCTANE');
+
+      assert.strictEqual(getEdition(), 'octane');
+    });
   });
 
   QUnit.module('has', function() {
@@ -37,6 +43,13 @@ QUnit.module('@ember/edition-utils', function(hooks) {
       assert.ok(has('octane'));
     });
 
+    test('should match case insensitively', function(assert) {
+      setEdition('octane');
+
+      assert.ok(has('OCTANE'));
+    });
+
+
     test('should not "have" octane, when edition is classic', function(assert) {
       setEdition('classic');