116 lines
4.3 KiB
Clojure
116 lines
4.3 KiB
Clojure
(ns babashka.reify-test
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(:require
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[babashka.test-utils :as test-utils]
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[clojure.edn :as edn]
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[clojure.test :as test :refer [deftest is testing]]))
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(defn bb [input & args]
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(edn/read-string
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{:readers *data-readers*
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:eof nil}
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(apply test-utils/bb (when (some? input) (str input)) (map str args))))
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(deftest file-filter-test
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(is (true? (bb nil "
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(def filter-obj (reify java.io.FileFilter
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(accept [this f] (prn (.getPath f)) true)))
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(def filename-filter-obj
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(reify java.io.FilenameFilter
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(accept [this f name] (prn name) true)))
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(def s1 (with-out-str (.listFiles (clojure.java.io/file \".\") filter-obj)))
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(def s2 (with-out-str (.listFiles (clojure.java.io/file \".\") filename-filter-obj)))
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(and (pos? (count s1)) (pos? (count s2)))"))))
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(deftest reify-multiple-arities-test
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(testing "ILookup"
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(is (= ["->:foo" 10]
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(bb nil "
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(def m (reify clojure.lang.ILookup
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(valAt [this x] (str \"->\" x))
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(valAt [this x y] y)))
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[(:foo m) (:foo m 10)]"))))
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(testing "IFn"
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(is (= [:yo :three :six :twelve :eighteen :nineteen 19]
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(bb nil "
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(def m (reify clojure.lang.IFn
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(invoke [this] :yo)
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(invoke [this _ _ _] :three)
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(invoke [this _ _ _ _ _ _] :six)
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(invoke [this _ _ _ _ _ _ _ _ _ _ _ _] :twelve)
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(invoke [this _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _] :eighteen)
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(invoke [this _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _] :nineteen)
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(applyTo [this args] (last args))))
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[
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(m)
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(m 1 2 3)
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(m 1 2 3 4 5 6)
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(m 1 2 3 4 5 6 1 2 3 4 5 6)
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(m 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6)
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(m 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1)
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(apply m (range 20))
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]")))))
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(deftest reify-object
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(testing "toString"
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(is (= ":foo"
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(bb nil "
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(def m (reify Object
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(toString [_] (str :foo))))
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(str m)
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"))))
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(testing "toString + protocol"
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(is (= ":dude1:dude2"
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(bb nil "
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(defprotocol Dude (dude [_])) (def obj (reify Object (toString [_] (str :dude1)) Dude (dude [_] :dude2))) (str (str obj) (dude obj))
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"))))
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(testing "Hashcode still works when only overriding toString"
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(is (number?
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(bb nil "
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(def m (reify Object
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(toString [_] (str :foo))))
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(hash m)
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")))))
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(deftest reify-file-visitor-test
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(let [prog '(do (ns dude
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(:import
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[java.io File]
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[java.nio.file FileSystems FileVisitor FileVisitResult Files Path])
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(:gen-class))
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(defn match-paths
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"Match glob to paths under root and return a collection of Path objects"
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[^File root glob]
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(let [root-path (.toPath root)
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matcher (.getPathMatcher (FileSystems/getDefault) (str "glob:" glob))
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paths (volatile! [])
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visitor (reify FileVisitor
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(visitFile [_ path attrs]
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(when (.matches matcher (.relativize root-path ^Path path))
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(vswap! paths conj path))
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FileVisitResult/CONTINUE)
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(visitFileFailed [_ path ex]
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FileVisitResult/CONTINUE)
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(preVisitDirectory [_ _ _] FileVisitResult/CONTINUE)
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(postVisitDirectory [_ _ _] FileVisitResult/CONTINUE))]
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(Files/walkFileTree root-path visitor)
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@paths))
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[(count (match-paths (File. ".") "**"))
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;; visitFileFailed is implemented
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(count (match-paths (File. "xxx") "**"))])
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[x y] (bb nil prog)]
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(is (pos? x))
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(is (zero? y))))
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(deftest reify-default-method-test
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(let [prog '(do (def iter (let [coll [:a :b :c] idx (volatile! -1)]
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(reify java.util.Iterator (hasNext [_] (< @idx 2))
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(next [_] (nth coll (vswap! idx inc))))))
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(def res (volatile! []))
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(vswap! res conj (.hasNext iter))
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(vswap! res conj (.next iter))
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(.forEachRemaining
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iter (reify java.util.function.Consumer (accept [_ x] (vswap! res conj x))))
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(= [true :a :b :c] @res))]
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(is (true? (bb nil prog)))))
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