ObjectPath.hs

-- Copyright (C) 2010-2012 John Millikin <john@john-millikin.com>
--
-- Licensed under the Apache License, Version 2.0 (the "License");
-- you may not use this file except in compliance with the License.
-- You may obtain a copy of the License at
--
--     http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.

module DBusTests.ObjectPath (test_ObjectPath) where

import Data.List (intercalate)
import Test.QuickCheck
import Test.Tasty
import Test.Tasty.HUnit
import Test.Tasty.QuickCheck

import DBus

test_ObjectPath :: TestTree
test_ObjectPath = testGroup "ObjectPath"
    [ test_Parse
    , test_ParseInvalid
    ]

test_Parse :: TestTree
test_Parse = testProperty "parse" prop where
    prop = forAll gen_ObjectPath check
    check x = case parseObjectPath x of
        Nothing -> False
        Just parsed -> formatObjectPath parsed == x

test_ParseInvalid :: TestTree
test_ParseInvalid = testCase "parse-invalid" $ do
    -- empty
    Nothing @=? parseObjectPath ""

    -- bad char
    Nothing @=? parseObjectPath "/f!oo"

    -- ends with a slash
    Nothing @=? parseObjectPath "/foo/"

    -- empty element
    Nothing @=? parseObjectPath "/foo//bar"

    -- trailing chars
    Nothing @=? parseObjectPath "/foo!"

gen_ObjectPath :: Gen String
gen_ObjectPath = gen where
    chars = ['a'..'z'] ++ ['A'..'Z'] ++ ['0'..'9'] ++ "_"

    gen = do
        xs <- listOf (listOf1 (elements chars))
        return ("/" ++ intercalate "/" xs)

instance Arbitrary ObjectPath where
    arbitrary = fmap objectPath_ gen_ObjectPath