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{-# LANGUAGE DeriveGeneric #-}
module ModifiersSpec.RenameOptionsSpec where
import Data.Char
import Data.List
import Test.Hspec
import Util
import WithCli.Pure
data Foo
= Foo {
foo :: Int,
bar :: Int
}
deriving (Eq, Show, Generic)
instance HasArguments Foo
data CommonPrefixes
= CP {
prefixFoo :: Int,
prefixBar :: Int,
notPrefixBaz :: Int
}
deriving (Eq, Show, Generic)
instance HasArguments CommonPrefixes
spec :: Spec
spec = do
describe "RenameOptions" $ do
it "allows renaming all flags" $ do
modsParse [RenameOptions (Just . reverse)] "--oof 1 --rab 2"
`shouldBe` Success (Foo 1 2)
it "works on camelCase field names" $ do
modsParse
[RenameOptions (Just . map toLower)]
"--prefixfoo 1 --prefixbar 2 --notprefixbaz 3"
`shouldBe` Success (CP 1 2 3)
it "missing options messages show renamed options" $ do
let Errors errs = modsParse
[RenameOptions (Just . map toLower)] "" :: Result CommonPrefixes
lines errs `shouldSatisfy` ("missing option: --prefixfoo=INTEGER" `elem`)
it "can be used to rename a single field" $ do
let rename f = case f of
"foo" -> Just "renamed"
_ -> Nothing
modsParse [RenameOptions rename] "--renamed 1 --bar 2"
`shouldBe` Success (Foo 1 2)
it "allows stripping a common prefix" $ do
modsParse [RenameOptions (stripPrefix "prefix")]
"--foo 1 --bar 2 --not-prefix-baz 3"
`shouldBe` Success (CP 1 2 3)
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