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(require-macros (doto :fennel-test.fennel-test require))
(require-macros (doto :cljlib require))
(local (meta? fennel) (pcall require :fennel))
(fn meta [x]
(fennel.metadata:get x))
(deftest test-defn
(when meta?
(testing "defn meta"
(defn f
"single arity"
[x] x)
(assert-eq {:fnl/docstring "single arity"
:fnl/arglist ["[x]"]}
(meta f))
(defn f
"single empty arity"
[])
(assert-eq {:fnl/docstring "single empty arity"
:fnl/arglist ["[]"]}
(meta f))
(defn f
"multiarity with single entry"
([x] x))
(assert-eq {:fnl/docstring "multiarity with single entry"
:fnl/arglist ["([x])"]}
(meta f))
(defn f
"multiarity"
([x] x)
([x y] (+ x y)))
(assert-eq {:fnl/docstring "multiarity"
:fnl/arglist ["([x])"
"([x y])"]}
(meta f))
(defn f
"multiarity with one empty arity"
([])
([x y] (+ x y)))
(assert-eq {:fnl/docstring "multiarity with one empty arity"
:fnl/arglist ["([])"
"([x y])"]}
(meta f))
(defn f
"multiarity with two or more arity"
([x] x)
([x y] (+ x y))
([x y & z] (+ x y)))
(assert-eq {:fnl/docstring "multiarity with two or more arity"
:fnl/arglist ["([x])"
"([x y])"
"([x y & z])"]}
(meta f))))
(testing "defn doc destructuring"
(defn f [[a b c]])
(assert-eq {:fnl/arglist ["[[a b c]]"]}
(meta f))
(defn f ([[a b c]]))
(assert-eq {:fnl/arglist ["([[a b c]])"]}
(meta f))
(defn f ([[a b c]]) ([{: a} b]) ([[{:a [a b c]}] d e]))
(assert-eq {:fnl/arglist ["([[a b c]])"
"([{:a a} b])"
"([[{:a [a b c]}] d e])"]}
(meta f)))
(testing "fn* anonymous calls"
(assert-eq ((fn* [])) (values))
(assert-eq ((fn* [] nil)) nil)
(assert-eq ((fn* [x] x) 5) 5)
(assert-eq ((fn* [a b c d e] [e d c b a]) 1 2 3 4 5) [5 4 3 2 1])
(assert-eq ((fn* ([x] x) ([x y] [y x])) 10) 10)
(assert-eq ((fn* ([x] x) ([x y] [y x])) 10 20) [20 10])))
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