87 lines
2.6 KiB
Hy
87 lines
2.6 KiB
Hy
;; Copyright 2018 the authors.
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;; This file is part of Hy, which is free software licensed under the Expat
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;; license. See the LICENSE.
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;; Tests where the emitted code relies on Python 3.
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;; conftest.py skips this file when running on Python 2.
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(defn test-exception-cause []
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(try (raise ValueError :from NameError)
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(except [e [ValueError]]
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(assert (= (type (. e __cause__)) NameError)))))
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(defn test-kwonly []
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"NATIVE: test keyword-only arguments"
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;; keyword-only with default works
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(defn kwonly-foo-default-false [&kwonly [foo False]] foo)
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(assert (= (kwonly-foo-default-false) False))
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(assert (= (kwonly-foo-default-false :foo True) True))
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;; keyword-only without default ...
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(defn kwonly-foo-no-default [&kwonly foo] foo)
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(setv attempt-to-omit-default (try
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(kwonly-foo-no-default)
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(except [e [Exception]] e)))
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;; works
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(assert (= (kwonly-foo-no-default :foo "quux") "quux"))
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;; raises TypeError with appropriate message if not supplied
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(assert (isinstance attempt-to-omit-default TypeError))
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(assert (in "missing 1 required keyword-only argument: 'foo'"
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(. attempt-to-omit-default args [0])))
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;; keyword-only with other arg types works
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(defn function-of-various-args [a b &rest args &kwonly foo &kwargs kwargs]
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(, a b args foo kwargs))
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(assert (= (function-of-various-args 1 2 3 4 :foo 5 :bar 6 :quux 7)
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(, 1 2 (, 3 4) 5 {"bar" 6 "quux" 7}))))
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(defn test-extended-unpacking-1star-lvalues []
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(setv [x #*y] [1 2 3 4])
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(assert (= x 1))
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(assert (= y [2 3 4]))
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(setv [a #*b c] "ghijklmno")
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(assert (= a "g"))
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(assert (= b (list "hijklmn")))
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(assert (= c "o")))
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(defn test-yield-from []
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"NATIVE: testing yield from"
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(defn yield-from-test []
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(for* [i (range 3)]
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(yield i))
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(yield-from [1 2 3]))
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(assert (= (list (yield-from-test)) [0 1 2 1 2 3])))
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(defn test-yield-from-exception-handling []
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"NATIVE: Ensure exception handling in yield from works right"
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(defn yield-from-subgenerator-test []
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(yield 1)
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(yield 2)
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(yield 3)
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(assert 0))
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(defn yield-from-test []
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(for* [i (range 3)]
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(yield i))
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(try
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(yield-from (yield-from-subgenerator-test))
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(except [e AssertionError]
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(yield 4))))
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(assert (= (list (yield-from-test)) [0 1 2 1 2 3 4])))
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(require [hy.contrib.walk [let]])
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(defn test-let-optional []
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(let [a 1
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b 6
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d 2]
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(defn foo [&kwonly [a a] b [c d]]
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(, a b c))
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(assert (= (foo :b "b")
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(, 1 "b" 2)))
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(assert (= (foo :b 20 :a 10 :c 30)
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(, 10 20 30)))))
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