Changed named emoticons to not require surrounding whitespace and added unit tests (#3009)

webapp/tests/emoticons.test.jsx

@@ -0,0 +1,44 @@
+// Copyright (c) 2016 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+import assert from 'assert';
+
+import * as Emoticons from 'utils/emoticons.jsx';
+
+describe('Emoticons', function() {
+    this.timeout(100000);
+
+    it('handleEmoticons', function(done) {
+        assert.equal(
+            Emoticons.handleEmoticons(':goat: :dash:', new Map()),
+            'MM_EMOTICON0 MM_EMOTICON1',
+            'should replace emoticons with tokens'
+        );
+
+        assert.equal(
+            Emoticons.handleEmoticons(':goat::dash:', new Map()),
+            'MM_EMOTICON0MM_EMOTICON1',
+            'should replace emoticons not separated by whitespace'
+        );
+
+        assert.equal(
+            Emoticons.handleEmoticons('/:goat:..:dash:)', new Map()),
+            '/MM_EMOTICON0..MM_EMOTICON1)',
+            'should replace emoticons separated by punctuation'
+        );
+
+        assert.equal(
+            Emoticons.handleEmoticons('asdf:goat:asdf:dash:asdf', new Map()),
+            'asdfMM_EMOTICON0asdfMM_EMOTICON1asdf',
+            'should replace emoticons separated by text'
+        );
+
+        assert.equal(
+            Emoticons.handleEmoticons(':asdf: :goat : : dash:', new Map()),
+            ':asdf: :goat : : dash:',
+            'shouldn\'t replace invalid emoticons'
+        );
+
+        done();
+    });
+});