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refactored files.

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didier amyot committed 2018-05-31 14:47:22 -04:00
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test/book/match_test.clj
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(ns book.match-test
(:require [clojure.test :refer :all]
[book.match :refer :all]))
(deftest test-match-buy-order-in-sell-book
(testing "Simplest case I."
(let [sell-book (create-sell-book {:type :sell :quantity 10 :price 2 :book.order/id 101})
order {:type :buy :quantity 10 :price 2 :book.order/id 102}
[trades new-book] (match-order-in-book sell-book order)]
(is (empty? new-book))
(is (= trades [#:book.order{:quantity 10 :price 2 :book-id 101 :order-id 102 :type :sell}]))))
(testing "Simplest case II."
(let [sell-book (create-sell-book {:type :sell :quantity 10 :price 2 :book.order/id 103})
order {:type :buy :quantity 10 :price 3 :book.order/id 104}
[trades new-book] (match-order-in-book sell-book order)]
(is (empty? new-book))
(is (= trades [#:book.order{:quantity 10 :price 2 :book-id 103 :order-id 104 :type :sell}]))))
(testing "Simplest case III."
(let [sell-book (create-sell-book {:type :sell :quantity 10 :price 2 :book.order/id 105})
order {:type :buy :quantity 8 :price 2 :book.order/id 106}
[trades new-book] (match-order-in-book sell-book order)]
(is (= new-book [{:type :sell :quantity 2 :price 2 :book.order/id 105}]))
(is (= trades [#:book.order{:quantity 8 :price 2 :book-id 105 :order-id 106 :type :sell}]))))
(testing "Simplest case IV."
(let [sell-book (create-sell-book {:type :sell :quantity 2 :price 12 :book.order/id 107} {:type :sell :quantity 8 :price 13 :book.order/id 108})
order {:type :buy :quantity 10 :price 13 :book.order/id 109}
[trades new-book] (match-order-in-book sell-book order)]
(is (empty? new-book))
(is (= trades [#:book.order{:quantity 2 :price 12 :book-id 107 :order-id 109 :type :sell}
#:book.order{:quantity 8 :price 13 :book-id 108 :order-id 109 :type :sell}]))))
(testing "Simplest case V."
(let [sell-book (create-sell-book {:type :sell :quantity 2 :price 12 :book.order/id 113} {:type :sell :quantity 8 :price 13 :book.order/id 114})
order {:type :buy :quantity 9 :price 13 :book.order/id 115}
[trades new-book] (match-order-in-book sell-book order)]
(is (= new-book (create-sell-book {:type :sell :quantity 1 :price 13 :book.order/id 114})))
(is (= trades [#:book.order{:quantity 2 :price 12 :book-id 113 :order-id 115 :type :sell}
#:book.order{:quantity 7 :price 13 :book-id 114 :order-id 115 :type :sell}]))))
(testing "Simplest case VI."
(let [sell-book (create-sell-book {:type :sell :quantity 2 :price 12 :book.order/id 116} {:type :sell :quantity 8 :price 13 :book.order/id 117})
order {:type :buy :quantity 21 :price 13 :book.order/id 118}
[trades new-book leftover-order] (match-order-in-book sell-book order)]
(is (empty? new-book))
(is (= trades [#:book.order{:quantity 2 :price 12 :book-id 116 :order-id 118 :type :sell}
#:book.order{:quantity 8 :price 13 :book-id 117 :order-id 118 :type :sell}]))
(is (= leftover-order {:type :buy :quantity 11 :price 13 :book.order/id 118}))))
(testing "Simplest case VII."
(let [sell-book (create-sell-book {:type :sell :quantity 2 :price 12 :book.order/id 116} {:type :sell :quantity 8 :price 13 :book.order/id 117})
order {:type :buy :quantity 21 :price 10 :book.order/id 118}
[trades new-book leftover-order] (match-order-in-book sell-book order)]
(is (= new-book sell-book))
(is (= trades []))
(is (= leftover-order order)))))
(deftest test-match-sell-order-in-buy-book
(testing "Simplest case I."
(let [buy-book (create-buy-book {:type :buy :quantity 10 :price 2 :book.order/id 101})
order {:type :sell :quantity 10 :price 2 :book.order/id 102}
[trades new-book] (match-order-in-book buy-book order)]
(is (= new-book []))
(is (= trades [#:book.order{:quantity 10 :price 2 :book-id 101 :order-id 102 :type :buy}]))))
(testing "Simplest case II."
(let [buy-book (create-buy-book {:type :buy :quantity 10 :price 4 :book.order/id 103})
order {:type :sell :quantity 10 :price 3 :book.order/id 104}
[trades new-book] (match-order-in-book buy-book order)]
(is (= new-book []))
(is (= trades [#:book.order{:quantity 10 :price 4 :book-id 103 :order-id 104 :type :buy}]))))
(testing "Simplest case III."
(let [buy-book (create-buy-book {:type :buy :quantity 10 :price 2 :book.order/id 105})
order {:type :sell :quantity 8 :price 2 :book.order/id 106}
[trades new-book] (match-order-in-book buy-book order)]
(is (= new-book [{:type :buy :quantity 2 :price 2 :book.order/id 105}]))
(is (= trades [#:book.order{:quantity 8 :price 2 :book-id 105 :order-id 106 :type :buy}]))))
(testing "Simplest case IV."
(let [buy-book (create-buy-book {:type :buy :quantity 2 :price 14 :book.order/id 107}
{:type :buy :quantity 8 :price 13 :book.order/id 108})
order {:type :sell :quantity 10 :price 13 :book.order/id 109}
[trades new-book] (match-order-in-book buy-book order)]
(is (= new-book []))
(is (= trades [#:book.order{:quantity 2 :price 14 :book-id 107 :order-id 109 :type :buy}
#:book.order{:quantity 8 :price 13 :book-id 108 :order-id 109 :type :buy}]))))
(testing "Simplest case V."
(let [buy-book (create-buy-book {:type :buy :quantity 2 :price 14 :book.order/id 113}
{:type :buy :quantity 8 :price 13 :book.order/id 114})
order {:type :sell :quantity 9 :price 13 :book.order/id 115}
[trades new-book] (match-order-in-book buy-book order)]
(= new-book (create-buy-book {:type :buy :quantity 1 :price 13 :book.order/id 114}))
(is (= trades [#:book.order{:quantity 2 :price 14 :book-id 113 :order-id 115 :type :buy}
#:book.order{:quantity 7 :price 13 :book-id 114 :order-id 115 :type :buy}]))))
(testing "Simplest case VI."
(let [sell-book (create-buy-book {:type :buy :quantity 2 :price 14 :book.order/id 116}
{:type :buy :quantity 8 :price 13 :book.order/id 117})
order {:type :sell :quantity 21 :price 13 :book.order/id 118}
[trades new-book leftover-order] (match-order-in-book sell-book order)]
(is (empty? new-book))
(is (= trades [#:book.order{:quantity 2 :price 14 :book-id 116 :order-id 118 :type :buy}
#:book.order{:quantity 8 :price 13 :book-id 117 :order-id 118 :type :buy}]))
(is (= leftover-order {:type :sell :quantity 11 :price 13 :book.order/id 118})))))