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{-# LANGUAGE BlockArguments #-}
{-# LANGUAGE QuasiQuotes #-}
module Main (main) where
import Data.ByteString.Char8 qualified as B
import Data.ByteString.Lazy.Char8 qualified as LB
import Data.Text qualified as T
import Data.Text.Lazy qualified as LT
import Process.Shell
import Test.Hspec
main :: IO ()
main = hspec do
describe "output" do
it "capture stdout" do
(`shouldBe` "stdout") . fst @String @String =<< [sh|echo -n stdout|]
it "capture stderr" do
(`shouldBe` "stderr") . snd @String =<< [sh|>&2 echo -n stderr|]
it "capture stdout and stderr interleaved" do
(`shouldBe` ("stdout", "stderr"))
=<< [sh|
echo -n stdout
>&2 echo -n stderr
|]
it "capture interleaved" do
(`shouldBe` "stdout\nstderr\n")
=<< [sh|
echo stdout
>&2 echo stderr
|]
describe "arguments" do
it "passes `Int`" do
(`shouldBe` "1") =<< [sh|echo -n %|] (1 :: Int)
it "passes `Text`" do
(`shouldBe` "foobar") =<< [sh|echo -n %|] (T.pack "foobar")
(`shouldBe` "foobar") =<< [sh|echo -n %|] (LT.pack "foobar")
it "passes `ByteString`" do
(`shouldBe` "foobar") =<< [sh|echo -n %|] (B.pack "foobar")
(`shouldBe` "foobar") =<< [sh|echo -n %|] (LB.pack "foobar")
describe "quoting" do
it "preserves arguments" do
(`shouldBe` "foo\\ bar")
=<< [sh|printf %%q %|] "foo bar"
it "preserves special characters" do
(`shouldBe` "foo\\ bar")
=<< [sh|foo=foo; bar=bar; ( printf %%q % )|] "$foo $bar"
it "escapes special characters" do
(`shouldBe` "\\$foo\\ \\$bar")
=<< [sh|printf %%q '%'|] "$foo $bar"
it "preserves empty arguments" do
(`shouldBe` "''") =<< [sh|printf %%q %|] ""
(`shouldBe` "''") =<< [sh|printf %%q '%'|] ""
describe "parsing" do
it "parses garbled arguments" do
(`shouldBe` "% foo") =<< [sh|echo -n '% ' %|] "foo"
(`shouldBe` " foo") =<< [sh|echo -n ' ' %|] "foo"
|
