Assign method name as :id if the task is a method object

CHANGES.md

@@ -1,3 +1,7 @@
+# 0.2.6
+
+* Assign automatic `:id` to step if task is a method object.
+
 # 0.2.5
 
 * Patching now requires the [`:patch` option for `Subprocess`](http://2019.trailblazer.to/2.1/docs/activity.html#activity-dsl-options-patching

lib/trailblazer/activity/dsl/linear/normalizer.rb

@@ -77,7 +77,7 @@ def wrap_task_with_step_interface((ctx, flow_options), **)
           end
 
           def normalize_id((ctx, flow_options), **)
-            id = ctx[:id] || ctx[:task]
+            id = ctx[:id] || ( ctx[:task].is_a?(Method) ? ctx[:task].name : ctx[:task] )
 
             return Trailblazer::Activity::Right, [ctx.merge(id: id), flow_options]
           end

lib/trailblazer/activity/dsl/linear/version.rb

@@ -3,7 +3,7 @@ module Version
     module Activity
       module DSL
         module Linear
-          VERSION = "0.2.5"
+          VERSION = "0.2.6"
         end
       end
     end

test/activity_test.rb

@@ -56,7 +56,7 @@ class ActivityTest < Minitest::Spec
         end
       end
 
-      exception.message.sub(/0x\w+/, "0x").must_equal %{ID #<Method: #<Module:0x>.f> is already taken. Please specify an `:id`.}
+      exception.message.sub(/0x\w+/, "0x").must_equal %{ID f is already taken. Please specify an `:id`.}
     end
 
     it "accepts {:outputs}" do
@@ -614,7 +614,7 @@ def add_1(wrap_ctx, original_args)
       step implementing.method(:b)
     end
 
-    activity.to_h[:nodes].collect(&:id).must_equal ["Start.default", :a, implementing.method(:b), "End.success"]
+    activity.to_h[:nodes].collect(&:id).must_equal ["Start.default", :a, :b, "End.success"]
   end
 
   describe "#merge!" do