97 lines
3.5 KiB
Ruby
97 lines
3.5 KiB
Ruby
require "test_helper"
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class Leaf::PositionableTest < ActiveSupport::TestCase
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setup do
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@leaves = books(:handbook).leaves.positioned
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end
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test "items are sorted in positioned order" do
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assert_equal [ leaves(:welcome_section), leaves(:welcome_page), leaves(:summary_page), leaves(:reading_picture) ], @leaves
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end
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test "items can be moved earlier" do
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leaves(:welcome_page).move_to_position(0)
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assert_equal [ leaves(:welcome_page), leaves(:welcome_section), leaves(:summary_page), leaves(:reading_picture) ], @leaves.reload
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end
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test "items can be moved beyond the start, which puts them at the start" do
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leaves(:welcome_page).move_to_position(-99)
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assert_equal [ leaves(:welcome_page), leaves(:welcome_section), leaves(:summary_page), leaves(:reading_picture) ], @leaves.reload
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end
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test "items can be moved later" do
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leaves(:welcome_section).move_to_position(2)
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assert_equal [ leaves(:welcome_page), leaves(:summary_page), leaves(:welcome_section), leaves(:reading_picture) ], @leaves.reload
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end
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test "items can be moved beyond the end, which puts them at the end" do
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leaves(:welcome_section).move_to_position(99)
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assert_equal [ leaves(:welcome_page), leaves(:summary_page), leaves(:reading_picture), leaves(:welcome_section) ], @leaves.reload
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end
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test "items can be moved to their existing position" do
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leaves(:welcome_page).move_to_position(1)
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assert_equal [ leaves(:welcome_section), leaves(:welcome_page), leaves(:summary_page), leaves(:reading_picture) ], @leaves.reload
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end
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test "items can be moved in blocks" do
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leaves(:welcome_section).move_to_position(1, followed_by: [ leaves(:welcome_page), leaves(:summary_page) ])
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assert_equal [ leaves(:reading_picture), leaves(:welcome_section), leaves(:welcome_page), leaves(:summary_page) ], @leaves.reload
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end
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test "new items are inserted at the end" do
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new_page = books(:handbook).press Page.new(body: "New Page"), title: "New Page"
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assert_equal new_page, books(:handbook).leaves.positioned.last
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end
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test "the first item in the collection has the expected score" do
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books(:handbook).leaves.destroy_all
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new_page = books(:handbook).press Page.new(body: "New Page"), title: "New Page"
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assert_equal 1, new_page.position_score
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end
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test "positioning is rebalanced when necessary" do
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leaves(:welcome_section).update!(position_score: 1e-11)
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leaves(:welcome_page).update!(position_score: 2e-11)
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leaves(:summary_page).move_to_position(1)
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assert_equal leaves(:summary_page), @leaves.reload.second
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assert_equal [ 1, 2, 3, 4 ], @leaves.pluck(:position_score)
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end
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test "items know their neighbours" do
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assert_equal leaves(:welcome_section), leaves(:welcome_page).previous
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assert_equal leaves(:summary_page), leaves(:welcome_page).next
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assert_nil leaves(:welcome_section).previous
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assert_nil leaves(:reading_picture).next
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end
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test "only active items are included as neighbours" do
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assert_equal leaves(:summary_page), leaves(:welcome_page).next
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leaves(:summary_page).trashed!
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assert_equal leaves(:reading_picture), leaves(:welcome_page).next
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end
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test "only active items are counted when determining position" do
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leaves(:welcome_page).trashed!
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leaves(:welcome_section).move_to_position(1)
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assert_equal [ leaves(:summary_page), leaves(:welcome_section), leaves(:reading_picture) ], @leaves.reload.active
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leaves(:welcome_section).move_to_position(0)
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assert_equal [ leaves(:welcome_section), leaves(:summary_page), leaves(:reading_picture) ], @leaves.reload.active
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end
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end
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