added tests for the PinnedLink's :timed, :past, :present, :future scopes

Author: Oaphi

test/fixtures/pinned_links.yml

@@ -14,3 +14,26 @@ inactive:
   label: test link
   link: https://example.com
   active: false
+
+timed_past:
+  community: sample
+  label: link in the past
+  link: https://example.com
+  active: true
+  shown_before: 2019-01-01T00:00:00.000000Z
+
+timed_present:
+  community: sample
+  label: link in the present
+  link: https://example.com
+  active: true
+  shown_after: 2019-01-01T00:00:00.000000Z
+  shown_before: <%= DateTime.now + 1 %>
+
+timed_future:
+  community: sample
+  label: link in the future
+  link: https://example.com
+  active: true
+  shown_after: <%= DateTime.now + 1 %>
+  shown_before: <%= DateTime.now + 1 %>

test/models/pinned_link_test.rb

@@ -1,7 +1,46 @@
 require 'test_helper'
 
 class PinnedLinkTest < ActiveSupport::TestCase
-  # test "the truth" do
-  #   assert true
-  # end
+  test ':timed scope should only return time-constrained links' do
+    timed = PinnedLink.timed
+
+    assert timed.any?
+
+    timed.each do |link|
+      assert link.timed?, "link \"#{link.label}\" is not timed"
+    end
+  end
+
+  test ':present scope should return non-timed or current links' do
+    now = DateTime.now
+    present = PinnedLink.present
+
+    assert present.any?
+
+    present.each do |link|
+      assert !link.timed? || (link.shown_before > now && link.shown_after <= now)
+    end
+  end
+
+  test ':past scope should only return past links' do
+    now = DateTime.now
+    past = PinnedLink.past
+
+    assert past.any?
+
+    past.each do |link|
+      assert link.timed? && link.shown_before < now
+    end
+  end
+
+  test ':future scope should only return future links' do
+    now = DateTime.now
+    future = PinnedLink.future
+
+    assert future.any?
+
+    future.each do |link|
+      assert link.timed? && link.shown_before > now && link.shown_after > now
+    end
+  end
 end