Formatting test 002: Added an example of multiple promise types

We want to insert newlines before promise types (promise guards).
So we need a test for this. Will fix the implementation in a
subsequent commit.

Signed-off-by: Ole Herman Schumacher Elgesem <ole.elgesem@northern.tech>

Author: olehermanse

tests/format/002_basics.expected.cf

@@ -29,4 +29,8 @@ bundle agent main
         if => "bar"
         # Comment at atttribute level
         string => "some_value";
+
+  classes:
+    # Comment before promise
+    "a" if => "b";
 }

tests/format/002_basics.input.cf

@@ -26,4 +26,7 @@ baz::
 if => "bar"
 # Comment at atttribute level
 string => "some_value";
+classes:
+# Comment before promise
+"a" if => "b";
 }