mirror of
https://github.com/emilybache/GildedRose-Refactoring-Kata.git
synced 2025-12-12 20:32:15 +00:00
9eeef2450f
Why:
- The current version isn't implemented properly.
Additional information:
- This is the result of my local test run (test omitted since
they're a part of the kata):
GildedRoseTest
* test update_quality/1 Aged Brie actually increases in Quality
the older it gets
* test Backstage passes Quality increases by 2 when there are
10 days or less
* test update_quality/1 the quality of an item is never negative
* test update_quality/1 degrades the quality when a day passes
* test Backstage passes Quality increases by 3 when there are 5
days or less
* test update_quality/1 when sell date is passed it degrades twice
as fast
* test Backstage passes Quality increases by 1 when sell_in is
larger than 10
* test update_quality/1 does not change the name
* test update_quality/1 The Quality of an item is never more than 50
* test update_quality/1 Sulfuras, being a legendary item, never has
to be sold or decreases in Quality
* test Backstage passes Quality drops to 0 after the concert
11 tests, 0 failures
84 lines
2.5 KiB
Elixir
84 lines
2.5 KiB
Elixir
defmodule GildedRose do
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# Example
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# update_quality([%Item{name: "Backstage passes to a TAFKAL80ETC concert", sell_in: 9, quality: 1}])
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# => [%Item{name: "Backstage passes to a TAFKAL80ETC concert", sell_in: 8, quality: 3}]
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def update_quality(items) do
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Enum.map(items, &update_item/1)
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end
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def update_item(item) do
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item = cond do
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item.name != "Aged Brie" && item.name != "Backstage passes to a TAFKAL80ETC concert" ->
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if item.quality > 0 do
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if item.name != "Sulfuras, Hand of Ragnaros" do
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%{item | quality: item.quality - 1}
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else
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item
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end
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else
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item
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end
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true ->
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cond do
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item.quality < 50 ->
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item = %{item | quality: item.quality + 1}
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cond do
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item.name == "Backstage passes to a TAFKAL80ETC concert" ->
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item = cond do
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item.sell_in < 11 ->
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cond do
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item.quality < 50 ->
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%{item | quality: item.quality + 1}
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true -> item
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end
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true -> item
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end
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cond do
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item.sell_in < 6 ->
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cond do
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item.quality < 50 ->
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%{item | quality: item.quality + 1}
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true -> item
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end
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true -> item
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end
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true -> item
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end
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true -> item
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end
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end
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item = cond do
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item.name != "Sulfuras, Hand of Ragnaros" ->
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%{item | sell_in: item.sell_in - 1}
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true -> item
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end
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cond do
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item.sell_in < 0 ->
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cond do
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item.name != "Aged Brie" ->
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cond do
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item.name != "Backstage passes to a TAFKAL80ETC concert" ->
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cond do
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item.quality > 0 ->
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cond do
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item.name != "Sulfuras, Hand of Ragnaros" ->
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%{item | quality: item.quality - 1}
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true -> item
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end
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true -> item
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end
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true -> %{item | quality: item.quality - item.quality}
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end
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true ->
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cond do
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item.quality < 50 ->
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%{item | quality: item.quality + 1}
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true -> item
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end
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end
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true -> item
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end
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end
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end
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