Added test matrix for Puppet 6

Author: Dylan Ratcliffe

.fixtures.yml

@@ -1,5 +1,7 @@
 fixtures:
   repositories:
     "stdlib": "https://github.com/puppetlabs/puppetlabs-stdlib.git"
+  forge_modules:
+    mount_core: "puppetlabs/mount_core"
   symlinks:
     "lvm": "#{source_dir}"

.travis.yml

@@ -20,6 +20,10 @@ matrix:
       env: PUPPET_GEM_VERSION="~> 4.0" STRICT_VARIABLES="yes"
     - rvm: 2.3.1
       env: PUPPET_GEM_VERSION="~> 4.0" STRICT_VARIABLES="yes"
+    - rvm: 2.4.4
+      env: PUPPET_GEM_VERSION="~> 5.0" STRICT_VARIABLES="yes"
+    - rvm: 2.5.1
+      env: PUPPET_GEM_VERSION="~> 6.0" STRICT_VARIABLES="yes"
 
 notifications:
   email: false

metadata.json

@@ -11,6 +11,10 @@
     {
       "name": "puppetlabs/stdlib",
       "version_requirement": ">= 4.13.1 < 5.0.0"
+    },
+    {
+      "name": "puppetlabs/mount_core",
+      "version_requirement": ">= 1.0.0 < 2.0.0"      
     }
   ],
   "data_provider": null,