application_helper_test.rb

require "test_helper"

class ApplicationHelperTest < ActionView::TestCase

  test "only at most 2 initials" do
    assert_equal "jz", at_most_two_initials("jdz")
  end

  test "single initials allowed" do
    assert_equal "q", at_most_two_initials("q")
  end

  test "nil returns nil" do
    assert_nil at_most_two_initials(nil)
  end

  test "can have numbers" do
    assert_equal "P2", at_most_two_initials("P2")
  end

  test "does not change case" do
    assert_equal "p2", at_most_two_initials("p2")
  end

  test "returns the correct two initials when there are more than two" do
    assert_equal "kS", at_most_two_initials("kRxS")
  end

  test "can have spaces" do
    assert_equal "pQ", at_most_two_initials("p v Q")
  end

  # Profile picture helper tests
  test "user_avatar_image_tag returns nil when user has no profile picture" do
    user = users(:keith)
    assert_nil user_avatar_image_tag(user)
  end

  test "user_avatar_image_tag returns image tag when user has profile picture" do
    user = users(:keith)
    user.profile_picture.attach(
      io: StringIO.new("fake image data"),
      filename: "test.jpg",
      content_type: "image/jpeg"
    )

    result = user_avatar_image_tag(user)
    assert_not_nil result
    assert_includes result, "img"
    assert_includes result, "test.jpg"
  end

  test "user_avatar_url returns fallback when user has no profile picture" do
    user = users(:keith)
    fallback_url = "http://example.com/default.jpg"

    assert_equal fallback_url, user_avatar_url(user, fallback: fallback_url)
  end

  test "user_avatar_url returns profile picture URL when user has profile picture" do
    user = users(:keith)
    user.profile_picture.attach(
      io: StringIO.new("fake image data"),
      filename: "test.jpg",
      content_type: "image/jpeg"
    )

    result = user_avatar_url(user)
    assert_not_nil result
    assert_includes result, "test.jpg"
  end

end