Fix tests

lib/src/Gren.js

@@ -371,29 +371,12 @@ class Gren {
             return this._getAllTags(releases, page + 1).then(moreTags => moreTags.concat(filteredTags));
         }
 
-        return filteredTags;
-    }
+        for (const tag of filteredTags) {
+            const gotCommit = await this.repo.getCommit(tag.tag.commit.sha);
+            tag.commit = gotCommit.data;
+        }
 
-    /**
-     * Get the dates of the last two tags
-     *
-     * @since 0.1.0
-     * @private
-     *
-     * @param  {Object[]} tags List of all the tags in the repo
-     *
-     * @return {Promise[]}     The promises which returns the dates
-     */
-    _getTagDates(tags) {
-        return tags.map(async tag => {
-            const { data: { committer } } = await this.repo.getCommit(tag.tag.commit.sha);
-
-            return {
-                id: tag.releaseId,
-                name: tag.tag.name,
-                date: committer.date
-            };
-        });
+        return filteredTags;
     }
 
     /**
@@ -1132,7 +1115,7 @@ class Gren {
 
         this._validateRequiredTagsExists(tags, this.options.tags);
 
-        const releaseObjects = await this._transformTagsIntoReleaseObjects(tags);
+        const releaseObjects = this._transformTagsIntoReleaseObjects(tags);
         const releaseDates = this._sortReleasesByDate(releaseObjects);
         const selectedTags = (this._getSelectedTags(releaseDates) || (releaseDates.length > 1 ? [releaseDates[0], releaseDates[1]] : releaseDates));
 
@@ -1143,15 +1126,11 @@ class Gren {
         );
     }
 
-    async _transformTagsIntoReleaseObjects(tags) {
-        for (const tag of tags) {
-            tag.commit = await this.repo.getCommit(tag.tag.commit.sha);
-        }
-
+    _transformTagsIntoReleaseObjects(tags) {
         return tags.map(tag => ({
             id: tag.releaseId,
             name: tag.tag.name,
-            date: tag.commit.data.committer.date
+            date: tag.commit ? tag.commit.committer.date : tag.date
         }));
     }