babashka/test/babashka/main_test.clj
2019-09-07 10:43:53 +02:00

187 lines
7 KiB
Clojure

(ns babashka.main-test
(:require
[babashka.main :as main]
[babashka.test-utils :as test-utils]
[clojure.edn :as edn]
[clojure.java.shell :refer [sh]]
[clojure.string :as str]
[clojure.test :as test :refer [deftest is testing]]))
(defn bb [input & args]
(edn/read-string (apply test-utils/bb (str input) (map str args))))
(deftest parse-opts-test
(is (= {:expression "(println 123)"}
(main/parse-opts ["-e" "(println 123)"])))
(is (= {:expression "(println 123)"}
(main/parse-opts ["--eval" "(println 123)"])))
(testing "distinguish automatically between expression or file name"
(is (= {:expression "(println 123)"
:command-line-args []}
(main/parse-opts ["(println 123)"])))
(is (= {:file "src/babashka/main.clj"
:command-line-args []}
(main/parse-opts ["src/babashka/main.clj"])))
(is (= {:expression "does-not-exist"
:command-line-args []}
(main/parse-opts ["does-not-exist"])))))
(deftest main-test
(testing "-io behaves as identity"
(= "foo\nbar\n" (test-utils/bb "foo\nbar\n" "-io" "*in*")))
(testing "if and when"
(is (= 1 (bb 0 '(if (zero? *in*) 1 2))))
(is (= 2 (bb 1 '(if (zero? *in*) 1 2))))
(is (= 1 (bb 0 '(when (zero? *in*) 1))))
(is (nil? (bb 1 '(when (zero? *in*) 1)))))
(testing "and and or"
(is (= false (bb 0 '(and false true *in*))))
(is (= 0 (bb 0 '(and true true *in*))))
(is (= 1 (bb 1 '(or false false *in*))))
(is (= false (bb false '(or false false *in*))))
(is (= 3 (bb false '(or false false *in* 3)))))
(testing "fn"
(is (= 2 (bb 1 "(#(+ 1 %) *in*)")))
(is (= [1 2 3] (bb 1 "(map #(+ 1 %) [0 1 2])")))
(is (= 1 (bb 1 "(#(when (odd? *in*) *in*))"))))
(testing "map"
(is (= [1 2 3] (bb 1 '(map inc [0 1 2])))))
(testing "keep"
(is (= [false true false] (bb 1 '(keep odd? [0 1 2])))))
(testing "->"
(is (= 4 (bb 1 '(-> *in* inc inc (inc))))))
(testing "->>"
(is (= 10 (edn/read-string (test-utils/bb "foo\n\baar\baaaaz" "-i" "(->> *in* (map count) (apply max))")))))
(testing "literals"
(is (= {:a 4
:b {:a 2}
:c [1 1]
:d #{1 2}}
(bb 1 '{:a (+ 1 2 *in*)
:b {:a (inc *in*)}
:c [*in* *in*]
:d #{*in* (inc *in*)}}))))
(testing "shuffle the contents of a file"
(let [in "foo\n Clojure is nice. \nbar\n If you're nice to clojure. "
in-lines (set (str/split in #"\n"))
out (test-utils/bb in
"-io"
(str '(shuffle *in*)))
out-lines (set (str/split out #"\n"))]
(is (= in-lines out-lines))))
(testing "find occurrences in file by line number"
(is (= '(1 3)
(->
(bb "foo\n Clojure is nice. \nbar\n If you're nice to clojure. "
"-i"
"(map-indexed #(-> [%1 %2]) *in*)")
(bb "(keep #(when (re-find #\"(?i)clojure\" (second %)) (first %)) *in*)"))))))
(deftest input-test
(testing "bb doesn't wait for input if *in* isn't used"
(is (= "2\n" (with-out-str (main/main "(inc 1)"))))))
(deftest System-test
(let [res (bb nil "-f" "test/babashka/scripts/System.bb")]
(is (= "bar" (second res)))
(doseq [s res]
(is (not-empty s))))
(let [out (java.io.StringWriter.)
err (java.io.StringWriter.)
exit-code (binding [*out* out *err* err]
(main/main "--time" "(println \"Hello world!\") (System/exit 42)"))]
(is (= (str out) "Hello world!\n"))
(is (re-find #"took" (str err)))
(is (= 42 exit-code))))
(deftest malformed-command-line-args-test
(is (thrown-with-msg? Exception #"File does not exist: non-existing\n"
(bb nil "-f" "non-existing")))
(testing "no arguments prints help"
(is (str/includes?
(try (test-utils/bb nil)
(catch clojure.lang.ExceptionInfo e
(:stdout (ex-data e))))
"Usage:"))))
(deftest ssl-test
(let [graalvm-home (System/getenv "GRAALVM_HOME")
lib-path (format "%1$s/jre/lib:%1$s/jre/lib/amd64" graalvm-home)
;; _ (prn "lib-path" lib-path)
resp (bb nil (format "(System/setProperty \"java.library.path\" \"%s\")
(slurp \"https://www.google.com\")"
lib-path))]
(is (re-find #"doctype html" resp))))
(deftest stream-test
(is (= "2\n3\n4\n" (test-utils/bb "1 2 3" "--stream" "(inc *in*)")))
(is (= "2\n3\n4\n" (test-utils/bb "{:x 2} {:x 3} {:x 4}" "--stream" "(:x *in*)")))
(let [x "foo\n\bar\n"]
(is (= x (test-utils/bb x "--stream" "-io" "*in*"))))
(let [x "f\n\b\n"]
(is (= x (test-utils/bb x "--stream" "-io" "(subs *in* 0 1)")))))
(deftest load-file-test
(let [tmp (java.io.File/createTempFile "script" ".clj")]
(spit tmp "(defn foo [x y] (+ x y)) (defn bar [x y] (* x y))")
(is (= "120\n" (test-utils/bb nil (format "(load-file \"%s\") (bar (foo 10 30) 3)"
(.getPath tmp)))))))
(deftest preloads-test
;; THIS TEST REQUIRES:
;; export BABASHKA_PRELOADS='(defn __bb__foo [] "foo") (defn __bb__bar [] "bar")'
(is (= "foobar" (bb nil "(str (__bb__foo) (__bb__bar))"))))
(deftest io-test
(is (true? (bb nil "(.exists (io/file \"README.md\"))")))
(is (true? (bb nil "(.canWrite (io/file \"README.md\"))"))))
(deftest pipe-test
(when test-utils/native?
(let [out (:out (sh "bash" "-c" "./bb -o '(range)' |
./bb --stream '(* *in* *in*)' |
head -n10"))
out (str/split-lines out)
out (map edn/read-string out)]
(is (= (take 10 (map #(* % %) (range))) out))))
(when test-utils/native?
(let [out (:out (sh "bash" "-c" "./bb -O '(repeat \"dude\")' |
./bb --stream '(str *in* \"rino\")' |
./bb -I '(take 3 *in*)'"))
out (edn/read-string out)]
(is (= '("duderino" "duderino" "duderino") out)))))
(deftest lazy-text-in-test
(when test-utils/native?
(let [out (:out (sh "bash" "-c" "yes | ./bb -i '(take 2 *in*)'"))
out (edn/read-string out)]
(is (= '("y" "y") out)))))
(deftest future-test
(is (= 6 (bb nil "@(future (+ 1 2 3))"))))
(deftest conch-test
(is (str/includes? (bb nil "(->> (conch/proc \"ls\") (conch/stream-to-string :out))")
"LICENSE")))
(deftest wait-for-it-test
(is (thrown-with-msg?
Exception
#"timeout"
(bb nil "(def web-server (conch/proc \"python\" \"-m\" \"SimpleHTTPServer\" \"7171\"))
(net/wait-for-it \"127.0.0.1\" 7171)
(conch/destroy web-server)
(net/wait-for-it \"localhost\" 7172 {:timeout 50})"))))
(deftest async-test
(is (= "process 2\n" (test-utils/bb nil "
(defn async-command [& args]
(async/thread (apply shell/sh \"bash\" \"-c\" args)))
(-> (async/alts!! [(async-command \"sleep 2 && echo process 1\")
(async-command \"sleep 1 && echo process 2\")])
first :out str/trim println)"))))