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(require-macros :macros.fn)
;; requires `eq' from core.fnl to be available at runtime
(fn* assert-eq
([expr1 expr2]
(assert-eq expr1 expr2 nil))
([expr1 expr2 msg]
`(let [left# ,expr1
right# ,expr2
(res# view#) (pcall require :fennelview)]
(assert (eq left# right#) (or ,msg (.. "equality assertion failed
Left: " ((if res# view# tostring) left#) "
Right: " ((if res# view# tostring) right#) "\n"))))))
(fn* assert-ne
([expr1 expr2]
(assert-ne expr1 expr2 nil))
([expr1 expr2 msg]
`(let [left# ,expr1
right# ,expr2
(res# view#) (pcall require :fennelview)]
(assert (not (eq left# right#)) (or ,msg (.. "unequality assertion failed
Left: " ((if res# view# tostring) left#) "
Right: " ((if res# view# tostring) right#) "\n"))))))
(fn* assert*
([expr]
(assert* expr nil))
([expr msg]
`(assert ,expr (.. "assertion failed for " (or ,msg ,(tostring expr))))))
(fn* deftest [name docstring & tests]
"Simple way of grouping tests"
`(do
,docstring
,((or table.unpack _G.unpack) tests)))
(fn* testing
"Define test function, print its name and run it."
[name & body]
(let [test-name (sym (.. (tostring name) "-test"))]
`(do (fn ,test-name []
,((or table.unpack _G.unpack) body))
(io.stderr:write (.. "running: " ,(tostring test-name) "\n"))
(,test-name))))
{: assert-eq
: assert-ne
: assert*
: deftest
: testing}
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