Reword CHANGELOG and add test.

Author: tobyclemson

CHANGELOG.md

@@ -1,7 +1,5 @@
 ## Unreleased
 
-* Name and tag cluster worker EBS volumes (Resolves #94)
-
 BACKWARDS INCOMPATIBILITIES / NOTES:
 
 * The `cluster_desired_capacity` is now ignored after the first `apply` of the
@@ -16,7 +14,10 @@ IMPROVEMENTS:
   users of this module to require that IMDSv2 be used by containers in the 
   cluster. By default, IMDSv2 is not required in this version of the module but
   a future major release of the module may enforce IMDSv2 usage.
-
+* The EBS volumes attached to container instances are now tagged with
+  `Component`, `DeploymentIdentifier`, `Name` and `ClusterName` tags by default,
+  as well as with any tags passed in the `tags` var when provided (resolves 
+  #94).
 
 ## 6.0.0 (February 22th 2023)
 

spec/unit/launch_template_spec.rb

@@ -9,6 +9,12 @@
   let(:dep_id) do
     var(role: :root, name: 'deployment_identifier')
   end
+  let(:cluster_name) do
+    'default'
+  end
+  let(:tags) do
+    var(role: :root, name: 'tags')
+  end
   let(:region) do
     var(role: :root, name: 'region')
   end
@@ -161,6 +167,26 @@
     end
   end
 
+  describe 'tag specifications' do
+    it 'sets default and provided tags on volumes' do
+      expect(@plan)
+        .to(include_resource_creation(type: 'aws_launch_template')
+              .with_attribute_value(
+                [:tag_specifications, 0],
+                {
+                  resource_type: 'volume',
+                  tags: {
+                    'Component' => component,
+                    'DeploymentIdentifier' => dep_id,
+                    'Name' =>
+                      "cluster-worker-#{component}-#{dep_id}-#{cluster_name}",
+                    'ClusterName' => cluster_name
+                  }.merge(tags)
+                }
+              ))
+    end
+  end
+
   context 'when root block device path is specified' do
     device_path = '/custom/path'