Turn all the examples into tests
This commit is contained in:
Sean Corfield
parent
f691d59be7
commit
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1 changed files with 107 additions and 185 deletions
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@ -2,190 +2,112 @@
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(ns next.jdbc-test
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(ns next.jdbc-test
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"Not exactly a test suite -- more a series of examples."
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"Not exactly a test suite -- more a series of examples."
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(:require [clojure.string :as str]
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(:require [clojure.test :refer [deftest is testing]]
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[clojure.test :refer [deftest is testing]]
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[next.jdbc :as jdbc]
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[next.jdbc :refer :all]
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[next.jdbc.test-fixtures :refer [with-test-db ds]]
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[next.jdbc.result-set :as rs]
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[next.jdbc.prepare :as prep]
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[next.jdbc.sql :refer :all])
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[next.jdbc.result-set :as rs])
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(:import (java.sql ResultSet ResultSetMetaData)))
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(:import (java.sql ResultSet ResultSetMetaData)))
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(comment
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(deftest basic-tests
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(def db-spec {:dbtype "h2:mem" :dbname "clojure_test_perf"})
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(testing "reducible!"
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;; these should be equivalent
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(is (= "Apple"
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(def con (get-connection (get-datasource db-spec) {}))
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(def con (get-connection db-spec {}))
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(execute-one! con ["DROP TABLE fruit"])
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;; h2
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(execute-one! con ["CREATE TABLE fruit (id int default 0, name varchar(32) primary key, appearance varchar(32), cost int, grade real)"])
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;; either this...
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(execute-one! con ["INSERT INTO fruit (id,name,appearance,cost,grade) VALUES (1,'Apple','red',59,87), (2,'Banana','yellow',29,92.2), (3,'Peach','fuzzy',139,90.0), (4,'Orange','juicy',89,88.6)"])
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;; ...or this (H2 can't return generated keys for this)
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(insert-multi! con :fruit [:id :name :appearance :cost :grade]
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[[1 "Apple" "red" 59 87]
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[2,"Banana","yellow",29,92.2]
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[3,"Peach","fuzzy",139,90.0]
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[4,"Orange","juicy",89,88.6]]
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{:return-keys false})
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;; mysql
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(execute! con ["CREATE TABLE fruit (id int auto_increment, name varchar(32), appearance varchar(32), cost int, grade real, primary key (id))"])
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(execute! con ["INSERT INTO fruit (id,name,appearance,cost,grade) VALUES (1,'Apple','red',59,87), (2,'Banana','yellow',29,92.2), (3,'Peach','fuzzy',139,90.0), (4,'Orange','juicy',89,88.6)"]
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{:return-keys true})
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;; when you're done
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(.close con)
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(require '[criterium.core :refer [bench quick-bench]])
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(require '[clojure.java.jdbc :as jdbc])
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;; calibrate
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(quick-bench (reduce + (take 10e6 (range))))
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;; raw java
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(defn select* [^java.sql.Connection con]
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(let [ps (doto (.prepareStatement con "SELECT * FROM fruit WHERE appearance = ?")
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(.setObject 1 "red"))
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rs (.executeQuery ps)
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_ (.next rs)
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value (.getObject rs "name")]
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(.close ps)
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value))
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(quick-bench (select* con)) ; 1.14 micros
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;; almost same as the Java example above -- 1.57 micros -- 1.4x Java
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(quick-bench
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(reduce (fn [rs m] (reduced (:name m)))
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nil
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(reducible! con ["select * from fruit where appearance = ?" "red"])))
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;; run through convenience function -- 2.4 micros
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(quick-bench
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(:FRUIT/NAME (execute-one! con
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["select * from fruit where appearance = ?" "red"]
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{})))
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;; 6.8 micros -- 3x
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(quick-bench
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(jdbc/query {:connection con}
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["select * from fruit where appearance = ?" "red"]
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{:row-fn :name :result-set-fn first}))
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;; simple query -- 2.6 micros
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(quick-bench
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(execute! con ["select * from fruit where appearance = ?" "red"]))
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;; 6.9 -- ~2.6x
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(quick-bench
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(jdbc/query {:connection con} ["select * from fruit where appearance = ?" "red"]))
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(quick-bench ; default -- 4.55-4.57
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(execute! con ["select * from fruit"] {:gen-fn rs/as-maps}))
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(quick-bench ; arrays -- 4.34-4.4
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(execute! con ["select * from fruit"] {:gen-fn rs/as-arrays}))
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(quick-bench ; simple keys -- 4.55-4.57
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(execute! con ["select * from fruit"] {:gen-fn rs/as-unqualified-maps}))
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(quick-bench ; simple keys, arrays -- 4.34-4.4
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(execute! con ["select * from fruit"] {:gen-fn rs/as-unqualified-arrays}))
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(quick-bench ; 9.5 -- 2x
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(jdbc/query {:connection con} ["select * from fruit"]))
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(quick-bench ; 8.2
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(with-transaction [t con {:rollback-only true}]
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(execute! t ["INSERT INTO fruit (id,name,appearance,cost,grade) VALUES (5,'Pear','green',49,47)"])))
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(quick-bench ; 15.7
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(with-transaction [t con {:rollback-only true}]
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(insert! t :fruit {:id 5, :name "Pear", :appearance "green", :cost 49, :grade 47})))
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(quick-bench ; 13.6 -- 1.6x
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(jdbc/with-db-transaction [t {:connection con}]
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(jdbc/db-set-rollback-only! t)
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(jdbc/execute! t ["INSERT INTO fruit (id,name,appearance,cost,grade) VALUES (5,'Pear','green',49,47)"])))
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(quick-bench ; 27.9-28.8 -- 1.8x
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(jdbc/with-db-transaction [t {:connection con}]
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(jdbc/db-set-rollback-only! t)
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(jdbc/insert! t :fruit {:id 5, :name "Pear", :appearance "green", :cost 49, :grade 47})))
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(delete! con :fruit {:id 5})
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;; with a prepopulated prepared statement - 450ns
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(with-open [ps (prepare con ["select * from fruit where appearance = ?" "red"] {})]
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(quick-bench
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[(reduce (fn [_ row] (reduced (:name row)))
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nil
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(reducible! ps))]))
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(require '[next.jdbc.prepare :as prepare])
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;; same as above but setting parameters inside the benchmark
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(with-open [ps (prepare con ["select * from fruit where appearance = ?"] {})]
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(quick-bench
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[(reduce (fn [_ row] (reduced (:name row)))
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nil
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(reducible! (prepare/set-parameters ps ["red"])))]))
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;; this takes more than twice the time of the one above which seems strange
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(with-open [ps (prepare con ["select * from fruit where appearance = ?"] {})]
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(quick-bench
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[(reduce (fn [_ row] (reduced (:name row)))
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nil
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(reducible! (prepare/set-parameters ps ["red"])))
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(reduce (fn [_ row] (reduced (:name row)))
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(reduce (fn [_ row] (reduced (:name row)))
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nil
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nil
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(reducible! (prepare/set-parameters ps ["fuzzy"])))]))
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(jdbc/reducible!
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(ds)
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;; full first row
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["select * from fruit where appearance = ?" "red"])))))
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(quick-bench
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(testing "execute-one!"
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(execute-one! con ["select * from fruit where appearance = ?" "red"]))
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(is (= "Apple" (:FRUIT/NAME
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(jdbc/execute-one!
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(with-transaction [t con {:rollback-only true}]
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(ds)
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(insert! t :fruit {:id 5, :name "Pear", :appearance "green", :cost 49, :grade 47})
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["select * from fruit where appearance = ?" "red"])))))
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(query t ["select * from fruit where name = ?" "Pear"]))
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(testing "execute!"
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(query con ["select * from fruit where name = ?" "Pear"])
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(let [rs (jdbc/execute!
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(ds)
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(delete! con :fruit {:id 1})
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["select * from fruit where appearance = ?" "red"])]
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(update! con :fruit {:appearance "Brown"} {:name "Banana"})
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(is (= 1 (count rs)))
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(is (= 1 (:FRUIT/ID (first rs)))))
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(reduce (fn [rs m] (reduced (assoc m :test 42)))
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(let [rs (jdbc/execute!
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nil
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(ds)
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(reducible! con ["select * from fruit where appearance = ?" "red"]))
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["select * from fruit order by id"]
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{:gen-fn rs/as-maps})]
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(reduce (fn [rs m] (reduced (rs/datafiable-row (assoc m :test 42) con {})))
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(is (every? map? rs))
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nil
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(is (every? meta rs))
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(reducible! con ["select * from fruit where appearance = ?" "red"]))
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(is (= 4 (count rs)))
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(is (= 1 (:FRUIT/ID (first rs))))
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(reduce (fn [rs m] (reduced (rs/datafiable-row m con {})))
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(is (= 4 (:FRUIT/ID (last rs)))))
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nil
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(let [rs (jdbc/execute!
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(reducible! con ["select * from fruit where appearance = ?" "red"]))
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(ds)
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["select * from fruit order by id"]
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(defrecord Fruit [id name appearance cost grade])
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{:gen-fn rs/as-arrays})]
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(is (every? vector? rs))
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(defn fruit-builder [^java.sql.ResultSet rs opts]
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(is (= 5 (count rs)))
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(reify
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(is (every? #(= 5 (count %)) rs))
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rs/RowBuilder
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;; columns come first
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(->row [_] (->Fruit (.getObject rs "id")
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(is (every? qualified-keyword? (first rs)))
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(.getObject rs "name")
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;; :FRUIT/ID should be first column
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(.getObject rs "appearance")
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(is (= :FRUIT/ID (ffirst rs)))
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(.getObject rs "cost")
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;; and all its corresponding values should be ints
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(.getObject rs "grade")))
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(is (every? int? (map first (rest rs))))
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(with-column [_ row i] row)
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(is (every? string? (map second (rest rs)))))
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(column-count [_] 0) ; no need to iterate over columns
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(let [rs (jdbc/execute!
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(row! [_ row] row)
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(ds)
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rs/ResultSetBuilder
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["select * from fruit order by id"]
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(->rs [_] (transient []))
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{:gen-fn rs/as-unqualified-maps})]
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(with-row [_ rs row] (conj! rs row))
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(is (every? map? rs))
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(rs! [_ rs] (persistent! rs))))
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(is (every? meta rs))
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(is (= 4 (count rs)))
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(quick-bench ; 2.2 micros
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(is (= 1 (:ID (first rs))))
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(execute-one! con ["select * from fruit where appearance = ?" "red"]
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(is (= 4 (:ID (last rs)))))
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{:gen-fn fruit-builder}))
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(let [rs (jdbc/execute!
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(quick-bench ; 2.47 micros
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(ds)
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(execute! con ["select * from fruit where appearance = ?" "red"]
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["select * from fruit order by id"]
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{:gen-fn fruit-builder}))
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{:gen-fn rs/as-unqualified-arrays})]
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(quick-bench ; 3 micros
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(is (every? vector? rs))
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(execute! con ["select * from fruit"]
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(is (= 5 (count rs)))
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{:gen-fn fruit-builder}))
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(is (every? #(= 5 (count %)) rs))
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;; columns come first
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;; with a prepopulated prepared statement - 1.7-1.8 micros
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(is (every? simple-keyword? (first rs)))
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(with-open [ps (prepare con ["select * from fruit"] {})]
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;; :ID should be first column
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(quick-bench
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(is (= :ID (ffirst rs)))
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(execute! ps [] {:gen-fn fruit-builder}))))
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;; and all its corresponding values should be ints
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(is (every? int? (map first (rest rs))))
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(is (every? string? (map second (rest rs))))))
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(testing "prepare"
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(let [rs (with-open [con (jdbc/get-connection (ds))]
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(with-open [ps (jdbc/prepare
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con
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["select * from fruit order by id"])]
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(jdbc/execute! ps)))]
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(is (every? map? rs))
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(is (every? meta rs))
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(is (= 4 (count rs)))
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(is (= 1 (:FRUIT/ID (first rs))))
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(is (= 4 (:FRUIT/ID (last rs)))))
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(let [rs (with-open [con (jdbc/get-connection (ds))]
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(with-open [ps (jdbc/prepare
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con
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["select * from fruit where id = ?"])]
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(jdbc/execute! (prep/set-parameters ps [4]))))]
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(is (every? map? rs))
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(is (every? meta rs))
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(is (= 1 (count rs)))
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(is (= 4 (:FRUIT/ID (first rs))))))
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(testing "transact"
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(is (= [{:next.jdbc/update-count 1}]
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(jdbc/transact (ds)
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(fn [t] (jdbc/execute! t ["
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INSERT INTO fruit (id, name, appearance, cost, grade)
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VALUES (5, 'Pear', 'green', 49, 47)
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"]))
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{:rollback-only true})))
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(is (= 4 (count (jdbc/execute! (ds) ["select * from fruit"])))))
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(testing "with-transaction"
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(is (= [{:next.jdbc/update-count 1}]
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(jdbc/with-transaction [t (ds) {:rollback-only true}]
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(jdbc/execute! t ["
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INSERT INTO fruit (id, name, appearance, cost, grade)
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VALUES (5, 'Pear', 'green', 49, 47)
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"]))))
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(is (= 4 (count (jdbc/execute! (ds) ["select * from fruit"]))))))
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