From 7aa35bffafc1759781d12411a23ce9b5e4157f6d Mon Sep 17 00:00:00 2001
From: Henning <product_updates@grooveloft.com>
Date: Thu, 27 Oct 2016 23:34:39 +0200
Subject: [PATCH 1/3] Fix to make it work in unit-test mode

---
 lib/mailer.js |  2 +-
 lib/utils.js  | 16 +++++++++++++++-
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/lib/mailer.js b/lib/mailer.js
index 07e3802..ec6d8ec 100644
--- a/lib/mailer.js
+++ b/lib/mailer.js
@@ -187,7 +187,7 @@ const factory = (options) => {
       // `preview` prop in the data context to apply to the layout.
       if (tmpl.__helpers.has('preview')) {
         preview = tmpl.__helpers.get('preview');
-      } else if (data.preview) {
+      } else if (data && data.preview) {  // data is optional
         preview = data.preview;
       }
 
diff --git a/lib/utils.js b/lib/utils.js
index 71fdd8f..86fb2b9 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -154,7 +154,21 @@ Utils = {
   },
 
   readFile(relativePathFromApp) {
-    const file = Path.join(ROOT, relativePathFromApp);
+    let file
+    if (Meteor.isAppTest
+      || Meteor.isTest) {
+      // note:
+      //  * this DOES WORK with Meteor.isTest (=unit test mode)
+      //  * Meteor.isAppTest is NOT TESTED yet (=in-app test mode)
+      //
+      // background-info: we had NO luck with "Assets.absoluteFilePath(relativePathFromApp)",
+      //  so lets build the path ourselves.
+      //  see discussion https://github.com/lookback/meteor-emails/issues/76
+      file = Path.join(process.cwd(), 'assets', 'app', relativePathFromApp)
+    } else {
+      // = standard mode (development || production)
+      file = Path.join(ROOT, relativePathFromApp);
+    }
 
     try {
       return fs.readFileSync(file, {

From be673deeb5fa7a9f9333eefa3acf5a50dd76b52f Mon Sep 17 00:00:00 2001
From: Henning <product_updates@grooveloft.com>
Date: Fri, 28 Oct 2016 00:32:09 +0200
Subject: [PATCH 2/3] Added support for scss in unit-test mode

---
 lib/utils.js | 51 +++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 39 insertions(+), 12 deletions(-)

diff --git a/lib/utils.js b/lib/utils.js
index 86fb2b9..9463e5e 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -22,6 +22,21 @@ const sass = (function() {
   return null;
 })();
 
+/**
+ * Check if file exists
+ * @param  {String} filePath
+ * @return {Boolean}
+ */
+const fileExists = function (filePath) {
+  try {
+    return fs.statSync(filePath).isFile();
+  }
+  catch (err)
+  {
+      return false;
+  }
+}
+
 const TAG = 'mailer-utils';
 
 // This package assumes that assets (templates, SCSS, CSS ..) are
@@ -37,7 +52,6 @@ const TAG = 'mailer-utils';
 //     /var/www/app/bundle
 //
 // For Modulus, you need to use the `APP_DIR` variable, which you do NOT need to set.
-
 const developmentPrivateDir = () => {
   if (!isDevEnv) {
     return '';
@@ -164,7 +178,7 @@ Utils = {
       // background-info: we had NO luck with "Assets.absoluteFilePath(relativePathFromApp)",
       //  so lets build the path ourselves.
       //  see discussion https://github.com/lookback/meteor-emails/issues/76
-      file = Path.join(process.cwd(), 'assets', 'app', relativePathFromApp)
+      file = Path.join(process.cwd(), 'assets', 'app', relativePathFromApp);
     } else {
       // = standard mode (development || production)
       file = Path.join(ROOT, relativePathFromApp);
@@ -192,17 +206,30 @@ ${packageToRecommend}`, TAG);
       return Utils.readFile(scss);
     }
 
-    const file = Path.join(ROOT, scss);
+    let file
+    if (Meteor.isAppTest
+      || Meteor.isTest) {
+      // note:
+      //  * this DOES WORK with Meteor.isTest (=unit test mode)
+      //  * Meteor.isAppTest is NOT TESTED yet (=in-app test mode)
+      file = Path.join(process.cwd(), 'assets', 'app', scss);
+    } else {
+      // = standard mode (development || production)
+      file = Path.join(ROOT, scss);
+    }
 
-    try {
-      return sass.renderSync({
-        file: file,
-        sourceMap: false
-      }).css.toString();
-    } catch (ex) {
-      console.error(`Sass failed to compile: ${ex.message}`);
-      console.error(`In ${ex.file || scss} at line ${ex.line}, column ${ex.column}`);
-      return '';
+    if (fileExists(file)) {
+      console.log('SCSS EXISTS')
+      try {
+        return sass.renderSync({
+          file: file,
+          sourceMap: false
+        }).css.toString();
+      } catch (ex) {
+        console.error(`Sass failed to compile: ${ex.message}`);
+        console.error(`In ${ex.file || scss} at line ${ex.line}, column ${ex.column}`);
+      }
     }
+    return '';  // fallback: on error, or if file does NOT exist
   }
 };

From 764dc2f344698729383f393905abd9f786587cb1 Mon Sep 17 00:00:00 2001
From: Henning <product_updates@grooveloft.com>
Date: Fri, 28 Oct 2016 00:36:00 +0200
Subject: [PATCH 3/3] removed log statement

---
 lib/utils.js | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lib/utils.js b/lib/utils.js
index 9463e5e..b0bf80d 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -219,7 +219,6 @@ ${packageToRecommend}`, TAG);
     }
 
     if (fileExists(file)) {
-      console.log('SCSS EXISTS')
       try {
         return sass.renderSync({
           file: file,