response_spec.rb in shamu-0.0.5

- old
+ new

@@ -1,17 +1,24 @@
 require "spec_helper"
+require "active_model"
 
 describe Shamu::JsonApi::Response do
   let( :context )  { Shamu::JsonApi::Context.new }
   let( :response ) { Shamu::JsonApi::Response.new context }
 
   it "uses presenter if given" do
-    presenter = double Shamu::JsonApi::Presenter
-    expect( presenter ).to receive( :present ) do |_, builder|
-      builder.identifier :response, 9
-    end.with( anything, kind_of( Shamu::JsonApi::ResourceBuilder ) )
+    presenter = double
+    expect( presenter ).to receive( :new ) do |resource, builder|
+      instance = Shamu::JsonApi::Presenter.new resource, builder
 
+      expect( instance ).to receive( :present ) do
+        builder.identifier :response, 9
+      end
+
+      instance
+    end
+
     response.resource double, presenter
   end
 
   it "expects a block if no presenter" do
     expect do
@@ -36,7 +43,30 @@
 
   it "includes errors" do
     response.error NotImplementedError.new
 
     expect( response.compile ).to include errors: [ hash_including( code: "not_implemented" ) ]
+  end
+
+  it "writes validation errors" do
+    klass = Class.new do
+      include ActiveModel::Validations
+
+      attr_reader :title
+      validates :title, presence: true
+
+      validate :general_problem
+
+      def general_problem
+        errors.add :base, "nope"
+      end
+    end
+
+    allow( klass ).to receive( :name ).and_return "Example"
+    record = klass.new
+    record.valid?
+
+    response.validation_errors record.errors
+    expect( response.compile ).to include errors: include( hash_including( source: { pointer: "/data/attributes/title" } ) ) # rubocop:disable Metrics/LineLength
+    expect( response.compile ).to include errors: include( hash_including( source: { pointer: "/data" } ) )
   end
 end
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