Add submission serializer spec

serializers/custom_wizard/submission_serializer.rb

@@ -1,7 +1,6 @@
 # frozen_string_literal: true
 class CustomWizard::SubmissionSerializer < ApplicationSerializer
   attributes :id,
-             :user,
              :fields,
              :submitted_at
 

spec/serializers/custom_wizard/submission_serializer_spec.rb

@@ -0,0 +1,51 @@
+# frozen_string_literal: true
+
+require_relative '../../plugin_helper'
+
+describe CustomWizard::SubmissionSerializer do
+  fab!(:user) { Fabricate(:user) }
+
+  let(:template_json) {
+    JSON.parse(File.open(
+      "#{Rails.root}/plugins/discourse-custom-wizard/spec/fixtures/wizard.json"
+    ).read)
+  }
+
+  before do
+    CustomWizard::Template.save(template_json, skip_jobs: true)
+    wizard = CustomWizard::Wizard.create(template_json["id"], user)
+    CustomWizard::Submission.new(wizard,
+      step_1_field_1: "I am user submission",
+      submitted_at: Time.now.iso8601
+    ).save
+    @list =  CustomWizard::Submission.list(wizard, page: 0)
+  end
+
+  it 'should return submission attributes' do
+    json_array = ActiveModel::ArraySerializer.new(
+      @list.submissions,
+      each_serializer: described_class
+    ).as_json
+
+    expect(json_array.length).to eq(1)
+    expect(json_array[0][:id].present?).to eq(true)
+    expect(json_array[0][:user].present?).to eq(true)
+    expect(json_array[0][:submitted_at].present?).to eq(true)
+  end
+
+  it "should return field values, types and labels" do
+    json_array = ActiveModel::ArraySerializer.new(
+      @list.submissions,
+      each_serializer: described_class
+    ).as_json
+
+    expect(json_array.length).to eq(1)
+    expect(json_array[0][:fields].as_json).to eq({
+      "step_1_field_1": {
+        "value": "I am user submission",
+        "type": "text",
+        "label": "Text"
+      }
+    }.as_json)
+  end
+end