cachix-0.1.0.0: test/NixVersionSpec.hs

module NixVersionSpec where

import Protolude
import Test.Hspec

import Cachix.Client.NixVersion

spec :: Spec
spec = do
  describe "parseNixMode" $ do
    it "parses 'nix-env (Nix) 2.0' as Nix20" $
      parseNixMode "nix-env (Nix) 2.0" `shouldBe` Right Nix20
    it "parses 'nix-env (Nix) 2.0.1' as Nix201" $
      parseNixMode "nix-env (Nix) 2.0.1" `shouldBe` Right Nix201
    it "parses 'nix-env (Nix) 1.11.13' as Nix1XX" $
      parseNixMode "nix-env (Nix) 1.11.13" `shouldBe` Right Nix1XX
    it "parses 'nix-env (Nix) 2.0.5' as Nix201" $
      parseNixMode "nix-env (Nix) 2.0.5" `shouldBe` Right Nix201
    it "parses 'nix-env (Nix) 2.0.1pre6053_444b921' as Nix201" $
      parseNixMode "nix-env (Nix) 2.0.1pre6053_444b921" `shouldBe` Right Nix201
    it "fails with unknown string 'foobar'" $
      parseNixMode "foobar" `shouldBe` Left "Couldn't parse 'nix-env --version' output: foobar"