hy/tests/native_tests/mathematics.hy

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2019-02-07 14:57:35 +01:00
;; Copyright 2019 the authors.
;; This file is part of Hy, which is free software licensed under the Expat
;; license. See the LICENSE.
(import [hy._compat [PY35]])
(setv square (fn [x]
(* x x)))
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(setv test_basic_math (fn []
"NATIVE: Test basic math."
(assert (= (+ 2 2) 4))))
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(setv test_mult (fn []
"NATIVE: Test multiplication."
(assert (= 4 (square 2)))
(assert (= 8 (* 8)))
(assert (= 1 (*)))))
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(setv test_sub (fn []
"NATIVE: Test subtraction"
(assert (= 4 (- 8 4)))
(assert (= -8 (- 8)))))
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(setv test_add (fn []
"NATIVE: Test addition"
(assert (= 4 (+ 1 1 1 1)))
(assert (= 8 (+ 8)))
(assert (= 0 (+)))))
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(defn test-add-unary []
"NATIVE: test that unary + calls __pos__"
(defclass X [object]
[__pos__ (fn [self] "called __pos__")])
(assert (= (+ (X)) "called __pos__"))
; Make sure the shadowed version works, too.
(setv f +)
(assert (= (f (X)) "called __pos__")))
(setv test_div (fn []
"NATIVE: Test division"
(assert (= 25 (/ 100 2 2)))
; Commented out until float constants get implemented
; (assert (= 0.5 (/ 1 2)))
(assert (= 1 (* 2 (/ 1 2))))))
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(setv test_int_div (fn []
"NATIVE: Test integer division"
(assert (= 25 (// 101 2 2)))))
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(defn test-modulo []
"NATIVE: test mod"
(assert (= (% 10 2) 0)))
(defn test-pow []
"NATIVE: test pow"
(assert (= (** 10 2) 100)))
(defn test-lshift []
"NATIVE: test lshift"
(assert (= (<< 1 2) 4)))
(defn test-rshift []
"NATIVE: test lshift"
(assert (= (>> 8 1) 4)))
(defn test-bitor []
"NATIVE: test lshift"
(assert (= (| 1 2) 3)))
(defn test-bitxor []
"NATIVE: test xor"
(assert (= (^ 1 2) 3)))
(defn test-bitand []
"NATIVE: test lshift"
(assert (= (& 1 2) 0)))
(defn test-augassign-add []
"NATIVE: test augassign add"
(setv x 1)
(+= x 41)
(assert (= x 42)))
(defn test-augassign-sub []
"NATIVE: test augassign sub"
(setv x 1)
(-= x 41)
(assert (= x -40)))
(defn test-augassign-mult []
"NATIVE: test augassign mult"
(setv x 1)
(*= x 41)
(assert (= x 41)))
(defn test-augassign-div []
"NATIVE: test augassign div"
(setv x 42)
(/= x 2)
(assert (= x 21)))
(defn test-augassign-floordiv []
"NATIVE: test augassign floordiv"
(setv x 42)
(//= x 2)
(assert (= x 21)))
(defn test-augassign-mod []
"NATIVE: test augassign mod"
(setv x 42)
(%= x 2)
(assert (= x 0)))
(defn test-augassign-pow []
"NATIVE: test augassign pow"
(setv x 2)
(**= x 3)
(assert (= x 8)))
(defn test-augassign-lshift []
"NATIVE: test augassign lshift"
(setv x 2)
(<<= x 2)
(assert (= x 8)))
(defn test-augassign-rshift []
"NATIVE: test augassign rshift"
(setv x 8)
(>>= x 1)
(assert (= x 4)))
(defn test-augassign-bitand []
"NATIVE: test augassign bitand"
(setv x 8)
(&= x 1)
(assert (= x 0)))
(defn test-augassign-bitor []
"NATIVE: test augassign bitand"
(setv x 0)
(|= x 2)
(assert (= x 2)))
(defn test-augassign-bitxor []
"NATIVE: test augassign bitand"
(setv x 1)
(^= x 1)
(assert (= x 0)))
(defn overflow-int-to-long []
"NATIVE: test if int does not raise an overflow exception"
(assert (integer? (+ 1 1000000000000000000000000))))
(defclass HyTestMatrix [list]
[--matmul--
(fn [self other]
(setv n (len self)
m (len (. other [0]))
result [])
(for [i (range m)]
(setv result-row [])
(for [j (range n)]
(setv dot-product 0)
(for [k (range (len (. self [0])))]
(+= dot-product (* (. self [i] [k])
(. other [k] [j]))))
(.append result-row dot-product))
(.append result result-row))
result)])
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(setv first-test-matrix (HyTestMatrix [[1 2 3]
[4 5 6]
[7 8 9]]))
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(setv second-test-matrix (HyTestMatrix [[2 0 0]
[0 2 0]
[0 0 2]]))
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(setv product-of-test-matrices (HyTestMatrix [[ 2 4 6]
[ 8 10 12]
[14 16 18]]))
(defn test-matmul []
"NATIVE: test matrix multiplication"
(if PY35
(assert (= (@ first-test-matrix second-test-matrix)
product-of-test-matrices))
;; Python <= 3.4
(do
(setv matmul-attempt (try (@ first-test-matrix second-test-matrix)
(except [e [Exception]] e)))
(assert (isinstance matmul-attempt NameError)))))
(defn test-augassign-matmul []
"NATIVE: test augmented-assignment matrix multiplication"
(setv matrix first-test-matrix
matmul-attempt (try (@= matrix second-test-matrix)
(except [e [Exception]] e)))
(if PY35
(assert (= product-of-test-matrices matrix))
(assert (isinstance matmul-attempt NameError))))