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Clojure GAE Clojure Datastore API
(defentity AnotherEntity [content saved-time int-value])
(deftest test-query-language
(testing "query entity with predicates"
(let [entity (save! (create-AnotherEntity "Some content woo" (t/date-time 1980 3 5) 6))
entity2 (save! (create-AnotherEntity "Other content" (t/date-time 1984 10 12) 17))]
; query all
(is (= (list entity entity2) (query-AnotherEntity [])))
; equality
(is (= (list entity) (query-AnotherEntity [:content = "Some content woo"])))
(is (nil? (query-AnotherEntity [:content = "Blearg not found"])))
; not equal
(is (= (list entity2 entity) (query-AnotherEntity [:content != "Not found"])))
(is (= (list entity) (query-AnotherEntity [:content != "Other content"])))
; greater-than and less-than
(is (= (list entity) (query-AnotherEntity [:int-value < 7])))
(is (nil? (query-AnotherEntity [:int-value < 5])))
; time: before and after
(is (= (list entity entity2) (query-AnotherEntity [:saved-time > (.toDate (t/date-time 1979 3 5))])))
(is (nil? (query-AnotherEntity [:saved-time < (.toDate (t/date-time 1979 3 5))])))
; "and" compound queries
(is (= (list entity) (query-AnotherEntity [:and [:content = "Some content woo"] [:int-value > 5]])))
(is (= (list entity entity2) (query-AnotherEntity [:and [:int-value > 5] [:int-value <= 17]])))
; "or" compound queries
(is (= (list entity) (query-AnotherEntity [:or [:content = "Some content woo"] [:int-value < 5]])))
(is (= (list entity entity2) (query-AnotherEntity [:or [:content = "Some content woo"] [:int-value > 5]])))
; compound queries with nested compound predicates
(is (= (list entity entity2) (query-AnotherEntity [:or [:content = "Other content"] [:and [:saved-time < (.toDate (t/date-time 1983 3 5))] [:int-value = 6]]])))
; keys-only support
(is (= (list (:key entity)) (query-AnotherEntity [:int-value < 7] [:keys-only true])))
; order-by support
(is (= (list entity2 entity) (query-AnotherEntity [:or [:content = "Some content woo"] [:int-value > 5]] [:order-by :int-value :desc])))
; keys only and order-by support
(is (= (list (:key entity2) (:key entity)) (query-AnotherEntity [:saved-time > (.toDate (t/date-time 1979 3 5))] [:keys-only true :order-by :int-value :desc]))))))
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