1: { cabalField, nixpkgs1803, runCommand, unpack' }:
2:
3: runCommand "cabalField-test" {
4: found = cabalField {
5: dir = unpack' "text" nixpkgs1803.haskellPackages.text.src;
6: field = "name";
7: };
8: } ''
9: [[ "x$found" = "xtext" ]] || {
10: echo "Got '$found' instead of 'text'" 1>&2
11: exit 1
12: }
13: mkdir "$out"
14: ''