post approvals: add index page + search options (fix #3579).

test/factories/post_approval.rb

@@ -0,0 +1,6 @@
+FactoryBot.define do
+  factory(:post_approval) do
+    user factory: :moderator_user
+    post factory: :post, is_pending: true
+  end
+end

test/functional/post_approvals_controller_test.rb

@@ -0,0 +1,16 @@
+require 'test_helper'
+
+class PostApprovalsControllerTest < ActionDispatch::IntegrationTest
+  context "The post approvals controller" do
+    setup do
+      @approval = FactoryBot.create(:post_approval)
+    end
+
+    context "index action" do
+      should "render" do
+        get post_approvals_path
+        assert_response :success
+      end
+    end
+  end
+end

test/unit/post_approval_test.rb

@@ -7,7 +7,7 @@ class PostApprovalTest < ActiveSupport::TestCase
       CurrentUser.user = @user
       CurrentUser.ip_addr = "127.0.0.1"
 
-      @post = FactoryBot.create(:post, uploader_id: @user.id, is_pending: true)
+      @post = FactoryBot.create(:post, uploader_id: @user.id, tag_string: "touhou", is_pending: true)
 
       @approver = FactoryBot.create(:user)
       @approver.can_approve_posts = true
@@ -58,5 +58,14 @@ class PostApprovalTest < ActiveSupport::TestCase
         end
       end
     end
+
+    context "#search method" do
+      should "work" do
+        @approval = @post.approve!(@approver)
+        @approvals = PostApproval.search(user_name: @approver.name, post_tags_match: "touhou", post_id: @post.id)
+
+        assert_equal([@approval.id], @approvals.map(&:id))
+      end
+    end
   end
 end