36 lines
1.9 KiB
Clojure
36 lines
1.9 KiB
Clojure
(ns book.core-test
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(:require [clojure.test :refer :all]
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[book.core :refer :all]))
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(deftest test-match-buy-order-in-sell-book
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(testing "Simplest case."
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(let [sell-book (create-book {:type :sell :quantity 10 :price 2 :book.order/id 101})
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order {:type :buy :quantity 10 :price 2 :book.order/id 102}
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[trades new-book] (match-buy-order-in-sell-book sell-book order)]
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(is (= new-book []))
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(is (= trades [#:book.order{:quantity 10 :price 2 :book-id 101 :order-id 102 :type :sell}]))))
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(testing "Simplest case II."
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(let [sell-book (create-book {:type :sell :quantity 10 :price 2 :book.order/id 103})
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order {:type :buy :quantity 10 :price 3 :book.order/id 104}
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[trades new-book] (match-buy-order-in-sell-book sell-book order)]
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(is (= new-book []))
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(is (= trades [#:book.order{:quantity 10 :price 2 :book-id 103 :order-id 104 :type :sell}]))))
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(testing "Simplest case III."
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(let [sell-book (create-book {:type :sell :quantity 10 :price 2 :book.order/id 105})
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order {:type :buy :quantity 8 :price 2 :book.order/id 106}
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[trades new-book] (match-buy-order-in-sell-book sell-book order)]
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(is (= new-book [{:type :sell :quantity 2 :price 2 :book.order/id 105}]))
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(is (= trades [#:book.order{:quantity 8 :price 2 :book-id 105 :order-id 106 :type :sell}]))))
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(testing "Simplest case IV."
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(let [sell-book (create-book {:type :sell :quantity 2 :price 12 :book.order/id 107} {:type :sell :quantity 8 :price 12 :book.order/id 108})
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order {:type :buy :quantity 10 :price 12 :book.order/id 109}
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[trades new-book] (match-buy-order-in-sell-book sell-book order)]
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(is (= new-book []))
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(is (= trades [#:book.order{:quantity 2 :price 12 :book-id 107 :order-id 109 :type :sell}
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#:book.order{:quantity 8 :price 12 :book-id 108 :order-id 109 :type :sell}])))))
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