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(require-macros :fennel-test)
(require-macros :init-macros)
(deftest test-fn*
(testing "fn* meta"
(fn* f
"single arity"
[x] x)
(assert-eq (meta f)
{:fnl/docstring "single arity"
:fnl/arglist ["[x]"]})
(fn* f
"single empty arity"
[])
(assert-eq (meta f)
{:fnl/docstring "single empty arity"
:fnl/arglist ["[]"]})
(fn* f
"multiarity with single entry"
([x] x))
(assert-eq (meta f)
{:fnl/docstring "multiarity with single entry"
:fnl/arglist ["[x]"]})
(fn* f
"multiarity"
([x] x)
([x y] (+ x y)))
(assert-eq (meta f)
{:fnl/docstring "multiarity"
:fnl/arglist ["([x])"
"([x y])"]})
(fn* f
"multiarity with one empty arity"
([])
([x y] (+ x y)))
(assert-eq (meta f)
{:fnl/docstring "multiarity with one empty arity"
:fnl/arglist ["([])"
"([x y])"]})
(fn* f
"multiarity with two or more arity"
([x] x)
([x y] (+ x y))
([x y & z] (+ x y)))
(assert-eq (meta f)
{:fnl/docstring "multiarity with two or more arity"
:fnl/arglist ["([x])"
"([x y])"
"([x y & z])"]}))
(testing "fn* doc destructuring"
(fn* f [[a b c]])
(assert-eq (meta f)
{:fnl/arglist ["[[a b c]]"]})
(fn* f ([[a b c]]))
(assert-eq (meta f)
{:fnl/arglist ["[[a b c]]"]})
(fn* f ([[a b c]]) ([{: a}]) ([[{:a [a b c]}]]))
(assert-eq (meta f)
{:fnl/arglist ["([[a b c]])"
"([{:a a}])"
"([[{:a [a b c]}]])"]}))
(testing "fn* methods"
(local ns {:a 1 :b 2})
(fn* ns:foo []
(+ self.a self.b))
(assert-eq (ns:foo) 3)
(assert-not (pcall #(ns:foo 1)))
(assert-not (pcall #(ns:foo 1 2)))
(fn* ns:bar
([x] (+ self.a x))
([x y] (+ self.b x y)))
(assert-eq (ns:bar -1) 0)
(assert-eq (ns:bar 10 20) 32)
(assert-not (pcall #(ns:bar)))
(assert-not (pcall #(ns:bar 1 2 3))))
(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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