Add a test module

slackbuilder.cabal

@@ -1,6 +1,6 @@
 cabal-version: 2.4
 name: slackbuilder
-version: 1.0.0.0
+version: 1.0.0
 
 synopsis: Slackware build scripts and configuration files.
 bug-reports: https://git.caraus.tech/OSS/slackbuilder/issues
@@ -16,42 +16,54 @@ category: Build
 extra-source-files: CHANGELOG.md
 
 executable slackbuilder
-    main-is: Main.hs
+  main-is: Main.hs
 
-    other-modules:
-        SlackBuilder.CommandLine
-        SlackBuilder.Config
-        SlackBuilder.Download
-        SlackBuilder.Package
-        SlackBuilder.Trans
-        SlackBuilder.Updater
-    default-extensions:
-        DataKinds
-        DuplicateRecordFields
-        LambdaCase
-        NamedFieldPuns
-        OverloadedStrings
-        RecordWildCards
-        TemplateHaskell
-        TypeApplications
-    build-depends:
-        aeson ^>= 2.2.0,
-        base ^>= 4.16.4.0,
-        bytestring ^>= 0.11.0,
-        conduit ^>= 1.3.5,
-        cryptonite >= 0.30,
-        filepath ^>= 1.4.2,
-        http-client ^>= 0.7,
-        modern-uri ^>= 0.3.6,
-        optparse-applicative ^>= 0.18.1,
-        process ^>= 1.6.17,
-        req ^>= 3.13,
-        text ^>= 2.0,
-        tomland ^>= 1.3.3,
-        transformers ^>= 0.5.6,
-        unordered-containers ^>= 0.2.19,
-        vector ^>= 0.13.0
-    hs-source-dirs: app
-    default-language: Haskell2010
+  other-modules:
+    SlackBuilder.CommandLine
+    SlackBuilder.Config
+    SlackBuilder.Download
+    SlackBuilder.Package
+    SlackBuilder.Trans
+    SlackBuilder.Updater
+  default-extensions:
+    DataKinds
+    DuplicateRecordFields
+    LambdaCase
+    NamedFieldPuns
+    OverloadedStrings
+    RecordWildCards
+    QuasiQuotes
+    TemplateHaskell
+    TypeApplications
+  build-depends:
+    aeson ^>= 2.2.0,
+    base ^>= 4.16.4.0,
+    bytestring ^>= 0.11.0,
+    conduit ^>= 1.3.5,
+    cryptonite >= 0.30,
+    exceptions >= 0.10,
+    filepath ^>= 1.4.2,
+    http-client ^>= 0.7,
+    modern-uri ^>= 0.3.6,
+    optparse-applicative ^>= 0.18.1,
+    process ^>= 1.6.17,
+    req ^>= 3.13,
+    text ^>= 2.0,
+    tomland ^>= 1.3.3,
+    transformers ^>= 0.5.6,
+    unordered-containers ^>= 0.2.19,
+    vector ^>= 0.13.0
+  hs-source-dirs: app
+  default-language: Haskell2010
 
-    ghc-options: -threaded -rtsopts -with-rtsopts=-N -Wall
+  ghc-options: -threaded -rtsopts -with-rtsopts=-N -Wall
+
+test-suite slackbuilder-test
+  type: exitcode-stdio-1.0
+  main-is: Spec.hs
+  hs-source-dirs:
+    tests
+  ghc-options: -threaded -rtsopts -with-rtsopts=-N -Wall
+  default-language: Haskell2010
+  build-depends:
+    hspec >= 2.10.9 && < 2.12