Add tests for reset filters button.

spec/features/issues/reset_filters_spec.rb

+require 'rails_helper'
+
+feature 'Filter Resetter', feature: true do
+  include WaitForAjax
+
+  let(:project)    { create(:project, :public) }
+  let(:milestone)  { create(:milestone, project: project) }
+
+  context 'resets the milestone filter', js: true do
+    it 'shows all issues when reset' do
+      create(:issue, project: project, milestone: milestone)
+      create(:issue, project: project)
+
+      visit_issues(project)
+
+      filter_by_milestone(milestone.title)
+      expect(page).to have_css(".issue", count: 1)
+
+      reset_filters
+      expect(page).to have_css(".issue", count: 2)
+    end
+  end
+
+  context 'resets labels filter', js:true do
+    it 'shows all issues when reset' do
+      bug = create(:label, project: project, title: 'bug')
+      issue1 = create(:issue, title: "Bugfix1", project: project)
+      issue1.labels << bug
+      issue2 = create(:issue, title: "Feature", project: project)
+
+      visit_issues(project)
+
+      filter_by_label(bug.title)
+      expect(page).to have_css(".issue", count: 1)
+
+      reset_filters
+      expect(page).to have_css(".issue", count: 2)
+    end
+  end
+
+  context 'resets text filter', js:true do
+    it 'shows all issues when reset' do
+      issue1 = create(:issue, title: "Bugfix1", project: project)
+      issue2 = create(:issue, title: "Feature", project: project)
+
+      visit_issues(project)
+      fill_in 'issue_search', with: 'Bug'
+      expect(page).to have_css(".issue", count: 1)
+
+      reset_filters
+      expect(page).to have_css(".issue", count: 2)
+    end
+  end
+
+  context 'resets label and text dually applied', js:true do
+    it 'shows all issues when reset' do
+      bug = create(:label, project: project, title: 'bug')
+      issue1 = create(:issue, title: "Bugfix1", project: project)
+      issue1.labels << bug
+      issue2 = create(:issue, project: project, title: 'Feature1')
+
+      visit_issues(project)
+      expect(page).to have_css('.issue', count: 2)
+
+      fill_in 'issue_search', with: 'Feat'
+      expect(page).to have_css(".issue", count: 1)
+
+      wait_for_ajax
+
+      filter_by_label(bug.title)
+      expect(page).to have_css(".issue", count: 0)
+
+      reset_filters
+      expect(page).to have_css(".issue", count: 2)
+    end
+  end
+
+  def filter_by_milestone(title)
+    find(".js-milestone-select").click
+    find(".milestone-filter .dropdown-content a", text: title).click
+  end
+
+  def filter_by_label(title)
+    find(".js-label-select").click
+    find(".labels-filter .dropdown-content a", text: title).click
+    find(".labels-filter .dropdown-title .dropdown-menu-close-icon").click
+  end
+
+  def reset_filters()
+    find(".reset-filters").click
+    wait_for_ajax
+  end
+
+  def visit_issues(project)
+    visit namespace_project_issues_path(project.namespace, project)
+  end
+end