hy/tests/native_tests/shadow.hy

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(defn test-shadow-addition []
"NATIVE: test shadow addition"
(let [[x +]]
(assert (try
(x)
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(except [TypeError] True)
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(else (raise AssertionError))))
(assert (= (x 1 2 3 4) 10))
(assert (= (x 1 2 3 4 5) 15))
; with strings
(assert (= (x "a")
"a"))
(assert (= (x "a" "b" "c")
"abc"))
; with lists
(assert (= (x ["a"])
["a"]))
(assert (= (x ["a"] ["b"] ["c"])
["a" "b" "c"]))))
(defn test-shadow-subtraction []
"NATIVE: test shadow subtraction"
(let [[x -]]
(assert (try
(x)
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(except [TypeError] True)
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(else (raise AssertionError))))
(assert (= (x 1) -1))
(assert (= (x 2 1) 1))
(assert (= (x 2 1 1) 0))))
(defn test-shadow-multiplication []
"NATIVE: test shadow multiplication"
(let [[x *]]
(assert (= (x) 1))
(assert (= (x 3) 3))
(assert (= (x 3 3) 9))))
(defn test-shadow-division []
"NATIVE: test shadow division"
(let [[x /]]
(assert (try
(x)
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(except [TypeError] True)
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(else (raise AssertionError))))
(assert (= (x 1) 1))
(assert (= (x 8 2) 4))
(assert (= (x 8 2 2) 2))
(assert (= (x 8 2 2 2) 1))))
(defn test-shadow-compare []
"NATIVE: test shadow compare"
(for [x [< <= = != >= >]]
(assert (try
(x)
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(except [TypeError] True)
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(else (raise AssertionError))))
(assert (try
(x 1)
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(except [TypeError] True)
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(else (raise AssertionError)))))
(for [(, x y) [[< >=]
[<= >]
[= !=]]]
(for [args [[1 2]
[2 1]
[1 1]
[2 2]]]
(assert (= (apply x args) (not (apply y args))))))
(let [[s-lt <]
[s-gt >]
[s-le <=]
[s-ge >=]
[s-eq =]
[s-ne !=]]
(assert (apply s-lt [1 2 3]))
(assert (not (apply s-lt [3 2 1])))
(assert (apply s-gt [3 2 1]))
(assert (not (apply s-gt [1 2 3])))
(assert (apply s-le [1 1 2 2 3 3]))
(assert (not (apply s-le [1 1 2 2 1 1])))
(assert (apply s-ge [3 3 2 2 1 1]))
(assert (not (apply s-ge [3 3 2 2 3 3])))
(assert (apply s-eq [1 1 1 1 1]))
(assert (not (apply s-eq [1 1 2 1 1])))
(assert (apply s-ne [1 2 3 4 5]))
(assert (not (apply s-ne [1 1 2 3 4])))))