Adding shared ability tests for Fields, Positions, and Templates.

test/fixtures/templates.yml

@@ -9,3 +9,8 @@ two:
   name: MyString
   author: MyString
   is_hidden: false
+
+hidden:
+  name: Hidden Template
+  author: No one
+  is_hidden: true

test/unit/abilities/shared/field_test.rb

@@ -0,0 +1,25 @@
+require 'test_helper'
+
+class SharedFieldAbilityTest < ActiveSupport::TestCase
+  def setup
+    @user = users(:kristen)
+    @screen = screens(:one)
+    @field = fields(:one)
+  end
+
+  test "anyone can read fields" do
+    [@user, @screen].each do |thing|
+      ability = Ability.new(thing)
+      assert ability.can?(:read, @field)
+    end
+  end
+
+  test "no one can update / delete fields" do
+    [@user, @screen].each do |thing|
+      ability = Ability.new(thing)
+      assert ability.cannot?(:update, @field)
+      assert ability.cannot?(:delete, @field)
+    end
+  end
+end
+

test/unit/abilities/shared/position_test.rb

@@ -0,0 +1,25 @@
+require 'test_helper'
+
+class SharedPositionAbilityTest < ActiveSupport::TestCase
+  def setup
+    @user = users(:kristen)
+    @screen = screens(:one)
+    @position = positions(:one)
+  end
+
+  test "anyone can read positions" do
+    [@user, @screen].each do |thing|
+      ability = Ability.new(thing)
+      assert ability.can?(:read, @position)
+    end
+  end
+
+  test "no one can update / delete positions" do
+    [@user, @screen].each do |thing|
+      ability = Ability.new(thing)
+      assert ability.cannot?(:update, @position)
+      assert ability.cannot?(:delete, @position)
+    end
+  end
+end
+

test/unit/abilities/shared/template_test.rb

@@ -0,0 +1,33 @@
+require 'test_helper'
+
+class SharedTemplateAbilityTest < ActiveSupport::TestCase
+  def setup
+    @user = users(:kristen)
+    @screen = screens(:one)
+    @template = templates(:one)
+  end
+
+  test "anyone can read public templates" do
+    [@user, @screen].each do |thing|
+      ability = Ability.new(thing)
+      assert ability.can?(:read, @template)
+    end
+  end
+
+  test "noone can read public templates" do
+    template = templates(:hidden)
+    [@user, @screen].each do |thing|
+      ability = Ability.new(thing)
+      assert ability.cannot?(:read, template)
+    end
+  end
+
+  test "no one can update / delete templates" do
+    [@user, @screen].each do |thing|
+      ability = Ability.new(thing)
+      assert ability.cannot?(:update, @template)
+      assert ability.cannot?(:delete, @template)
+    end
+  end
+end
+