/
typed_buffer_test.clj
132 lines (113 loc) · 5.14 KB
/
typed_buffer_test.clj
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(ns tech.v2.datatype.typed-buffer-test
(:require [tech.v2.datatype.typed-buffer :as typed-buffer]
[tech.v2.datatype :as dtype]
[tech.v2.datatype.protocols :as dtype-proto]
[tech.v2.datatype.casting :as casting]
[tech.v2.datatype.list]
[clojure.test :refer :all])
(:import [java.nio ByteBuffer]))
(deftest unsigned-basics
(let [test-data [255 254 0 1 2 3]
src-buffer (short-array test-data)
n-elems (dtype/ecount src-buffer)
dst-buffer (typed-buffer/make-typed-buffer :uint8 n-elems)
byte-buffer (byte-array n-elems)]
(dtype/copy! src-buffer dst-buffer)
(is (= test-data
(dtype/->vector dst-buffer)))
(is (thrown? Throwable (dtype/copy! dst-buffer byte-buffer)))
(let [casted-bytes (dtype/copy! dst-buffer 0 byte-buffer 0 n-elems
{:unchecked? true})]
(is (= [-1 -2 0 1 2 3] (vec casted-bytes))))
;;The item-by-item interfaces always check
(is (thrown? Throwable (dtype/set-value! dst-buffer 2 -1)))
(is (thrown? Throwable (dtype/set-value! dst-buffer 2 256)))
(let [new-buf (float-array n-elems)]
(dtype/copy! dst-buffer new-buf)
(is (= test-data (mapv long new-buf))))
(let [dst-buffer (dtype-proto/sub-buffer dst-buffer 1 (- n-elems 1))
test-ary (short-array (dtype/ecount dst-buffer))]
(dtype/copy! dst-buffer test-ary)
(is (= [254 0 1 2 3]
(vec test-ary)))
(is (= 254
(dtype/get-value dst-buffer 0)))
(dtype/set-value! dst-buffer 0 255)
(dtype/copy! dst-buffer test-ary)
(is (= [255 0 1 2 3]
(vec test-ary)))
(is (= [255 0 1 2 3]
(-> (dtype/clone dst-buffer)
(dtype/->vector))))
(is (= :uint8
(-> (dtype/clone dst-buffer)
(dtype/get-datatype)))))))
(deftest unsigned-basics-list
(testing "Lists can be used in typed buffers"
(let [test-data [255 254 0 1 2 3]
src-buffer (dtype-proto/make-container :list :int64 test-data {})
n-elems (dtype/ecount src-buffer)
dst-buffer (-> (dtype-proto/make-container :list :int8 n-elems {})
(typed-buffer/set-datatype :uint8))
byte-buffer (byte-array n-elems)]
(dtype/copy! src-buffer dst-buffer)
(is (= test-data
(dtype/->vector dst-buffer)))
(is (thrown? Throwable (dtype/copy! dst-buffer byte-buffer)))
(let [casted-bytes (dtype/copy! dst-buffer 0 byte-buffer 0 n-elems
{:unchecked? true})]
(is (= [-1 -2 0 1 2 3] (vec casted-bytes))))
;;The item-by-item interfaces always check
(is (thrown? Throwable (dtype/set-value! dst-buffer 2 -1)))
(is (thrown? Throwable (dtype/set-value! dst-buffer 2 256)))
(let [new-buf (dtype-proto/make-container :list :float32 n-elems {})]
(dtype/copy! dst-buffer new-buf)
(is (= test-data (mapv long new-buf))))
(let [dst-buffer (dtype-proto/sub-buffer dst-buffer 1 (- n-elems 1))
test-ary (short-array (dtype/ecount dst-buffer))]
(dtype/copy! dst-buffer test-ary)
(is (= [254 0 1 2 3]
(vec test-ary)))
(is (= 254
(dtype/get-value dst-buffer 0)))
(dtype/set-value! dst-buffer 0 255)
(dtype/copy! dst-buffer test-ary)
(is (= [255 0 1 2 3]
(vec test-ary)))
(is (= [255 0 1 2 3]
(-> (dtype/clone dst-buffer)
(dtype/->vector))))
(is (= :uint8
(-> (dtype/clone dst-buffer)
(dtype/get-datatype))))))))
(deftest negative-numbers-always-wrong
(doseq [datatype casting/unsigned-int-types]
(is (thrown? Throwable
(dtype/cast -1 datatype)))))
(deftest get-value-on-things
(is (= :one (dtype/get-value :one 0)))
(is (= :alpha (dtype/get-value {3 :alpha} 3)))
(is (= 3 (dtype/get-value [1 2 3] 2)))
(is (thrown? Throwable (dtype/get-value :one 1))))
(deftest satsifies-interface-requirements
(is (typed-buffer/typed-buffer? (typed-buffer/make-typed-buffer :uint8 5 {})))
(is (typed-buffer/typed-buffer? (double-array 5)))
(is (typed-buffer/typed-buffer? (ByteBuffer/allocate 5))))
(deftest ->array-respects-limit
(let [nio-buf (doto (ByteBuffer/wrap (byte-array [1 2 3 4 5]))
(.limit 2))]
(is (= 2 (dtype/ecount nio-buf)))
(is (nil? (dtype/->array nio-buf)))
(is (= (dtype/->vector nio-buf) [1 2]))))
(deftest make-array-all-variants
(let [src-buf (typed-buffer/make-typed-buffer :uint8 (range 5) {})
test-vec (dtype/->vector src-buf)
make-array-test-fn (fn [target-dtype input]
(let [dest-ary (dtype/make-array-of-type
target-dtype input)]
(is (= test-vec
(mapv long (dtype/->vector dest-ary))))))]
(make-array-test-fn :int8 src-buf)
(make-array-test-fn :float32 src-buf)
(make-array-test-fn :int64 (dtype/->vector src-buf))
(make-array-test-fn :int32 (int-array (dtype/->vector src-buf)))))