Add more tests

test/application_system_test_case.rb

@@ -2,4 +2,8 @@
 
 class ApplicationSystemTestCase < ActionDispatch::SystemTestCase
   driven_by :selenium, using: :headless_chrome, screen_size: [1400, 1400]
+
+  def assert_field_has_errors(label_text)
+    find_field(label_text).assert_ancestor(".input.field_with_errors")
+  end
 end

test/models/group_test.rb

@@ -0,0 +1,14 @@
+require "test_helper"
+
+class GroupTest < ActiveSupport::TestCase
+  def setup
+    @subject = build(:group)
+  end
+
+  test "should be valid" do
+    assert @subject.valid?
+  end
+
+  test("name required") { assert_present(:name) }
+  test("age_in_months required") { assert_present(:age_in_months) }
+end

test/models/user_test.rb

@@ -36,4 +36,23 @@ class UserTest < ActiveSupport::TestCase
 
     assert_equal user.child_age_in_months_today, 5
   end
+
+  test "#next_content method returns next ranked content for age group" do
+    group = create(:group, age_in_months: @subject.child_age_in_months_today)
+    content1 = create(:content, group:, position: 1)
+    content2 = create(:content, group:, position: 2)
+    create(:message, content: content1, user: @subject)
+
+    assert_equal @subject.next_content(group), content2
+  end
+
+  test "#next_content method returns nothing if no appropriate content" do
+    group = create(:group, age_in_months: @subject.child_age_in_months_today)
+    content1 = create(:content, group:, position: 1)
+    content2 = create(:content, group:, position: 2)
+    create(:message, content: content1, user: @subject)
+    create(:message, content: content2, user: @subject)
+
+    assert_nil @subject.next_content(group)
+  end
 end

test/system/contents_test.rb

@@ -22,7 +22,21 @@ class ContentsTest < ApplicationSystemTestCase
     assert_text "New content"
   end
 
-  test "updating a content" do
+  test "shows errors" do
+    create(:content, body: "Old Content", group: @group)
+
+    sign_in
+    visit group_path(@group)
+
+    click_on "Add new message"
+
+    click_on "Create"
+
+    assert_field_has_errors("Body")
+    assert_field_has_errors("Link")
+  end
+
+  test "updating content" do
     create(:content, body: "Old Content", group: @group)
 
     sign_in

test/system/groups_test.rb

@@ -0,0 +1,60 @@
+require "application_system_test_case"
+
+class ContentsTest < ApplicationSystemTestCase
+  setup do
+    @admin = create(:admin)
+  end
+
+  test "creating new group" do
+    sign_in
+    visit groups_path
+
+    click_on "Create content group"
+
+    fill_in "Name", with: "Default content"
+    fill_in "Age in months", with: "17"
+    click_on "Create"
+
+    assert_text "Content group successfully created"
+    assert_text "Default content"
+  end
+
+  test "shows errors" do
+    sign_in
+    visit groups_path
+
+    click_on "Create content group"
+
+    click_on "Create"
+
+    assert_field_has_errors("Name")
+    assert_field_has_errors("Age in months")
+  end
+
+  test "updating a group" do
+    create(:group, name: "Old group name")
+
+    sign_in
+    visit groups_path
+
+    assert_text "Old group name"
+
+    click_on "Edit", match: :first
+
+    fill_in "Name", with: "New group name"
+    click_on "Update"
+
+    assert_text "Content group updated"
+    assert_text "New group name"
+  end
+
+  private
+
+  def sign_in
+    visit new_admin_session_path
+    fill_in "Email", with: @admin.email
+    fill_in "Password", with: @admin.password
+    click_on "Log in"
+    assert_text "Signed in successfully."
+  end
+end