$ cabal test cannot run

[mw66]

I added tests here:

#23

but, it cannot run:

$ cabal test
Resolving dependencies...
Build profile: -w ghc-8.4.4 -O1
In order, the following will be built (use -v for more details):
 - language-eiffel-0.2.0 (test:tests) (first run)
Warning: language-eiffel.cabal:101:4: invalid subsection "language-eiffel"
Warning: language-eiffel.cabal:101:1: Tabs used as indentation at 101:1
Configuring test suite 'tests' for language-eiffel-0.2.0..
Preprocessing test suite 'tests' for language-eiffel-0.2.0..
Building test suite 'tests' for language-eiffel-0.2.0..

<no location info>: warning: [-Wmissing-home-modules]
    These modules are needed for compilation but not listed in your .cabal file's other-modules: Language.Eiffel.Parser
                                                                                                 Language.Eiffel.Parser.Class
                                                                                                 Language.Eiffel.Parser.Clause
                                                                                                 Language.Eiffel.Parser.Expr
                                                                                                 Language.Eiffel.Parser.Feature
                                                                                                 Language.Eiffel.Parser.Note
                                                                                                 Language.Eiffel.Parser.Statement
                                                                                                 Language.Eiffel.Parser.Statement
                                                                                                 Language.Eiffel.Parser.Typ
                                                                                                 Language.Eiffel.Position
                                                                                                 Language.Eiffel.PrettyPrint
                                                                                                 Language.Eiffel.Syntax
                                                                                                 Language.Eiffel.Util
[ 1 of 14] Compiling Language.Eiffel.Position ( Language/Eiffel/Position.hs, /language-eiffel/dist-newstyle/build/x86_64-linux/ghc-8.4.4/language-eiffel-0.2.0/t/tests/build/tests/tests-tmp/Language/Eiffel/Position.o )

Language/Eiffel/Position.hs:30:1: error:
    Could not find module ‘Data.Binary’
    Use -v to see a list of the files searched for.
   |
30 | import Data.Binary
   | ^^^^^^^^^^^^^^^^^^

Language/Eiffel/Position.hs:31:1: error:
    Could not find module ‘Data.Hashable’
    Use -v to see a list of the files searched for.
   |
31 | import           Data.Hashable
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Language/Eiffel/Position.hs:32:1: error:
    Could not find module ‘Control.DeepSeq’
    Use -v to see a list of the files searched for.
   |
32 | import Control.DeepSeq
   | ^^^^^^^^^^^^^^^^^^^^^^

Language/Eiffel/Position.hs:36:1: error:
    Could not find module ‘Text.Parsec’
    Use -v to see a list of the files searched for.
   |
36 | import Text.Parsec
   | ^^^^^^^^^^^^^^^^^^

Language/Eiffel/Position.hs:37:1: error:
    Could not find module ‘Text.Parsec.Pos’
    Use -v to see a list of the files searched for.
   |
37 | import Text.Parsec.Pos
   | ^^^^^^^^^^^^^^^^^^^^^^

Language/Eiffel/Position.hs:38:1: error:
    Could not find module ‘Text.Parsec.ByteString’
    Use -v to see a list of the files searched for.
   |
38 | import Text.Parsec.ByteString
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

with

$ ghc --version
The Glorious Glasgow Haskell Compilation System, version 8.4.4

$ cabal --version
cabal-install version 3.10.2.1
compiled using version 3.10.2.1 of the Cabal library 

I'm wondering what fix else is needed?