tjh.dev
1{ runCommand, postcss-cli }:
2
3let
4 inherit (postcss-cli) packageName version;
5in
6
7runCommand "${packageName}-tests" { meta.timeout = 60; } ''
8 # get version of installed program and compare with package version
9 claimed_version="$(${postcss-cli}/bin/postcss --version)"
10 if [[ "$claimed_version" != "${version}" ]]; then
11 echo "Error: program version does not match package version ($claimed_version != ${version})"
12 exit 1
13 fi
14
15 # run basic help command
16 ${postcss-cli}/bin/postcss --help > /dev/null
17
18 # basic autoprefixer test
19 config_dir="$(mktemp -d)"
20 clean_up() {
21 rm -rf "$config_dir"
22 }
23 trap clean_up EXIT
24 echo "
25 module.exports = {
26 plugins: {
27 'autoprefixer': { overrideBrowserslist: 'chrome 40' },
28 },
29 }
30 " > "$config_dir/postcss.config.js"
31 input='a{ user-select: none; }'
32 expected_output='a{ -webkit-user-select: none; user-select: none; }'
33 actual_output="$(echo $input | ${postcss-cli}/bin/postcss --no-map --config $config_dir)"
34 if [[ "$actual_output" != "$expected_output" ]]; then
35 echo "Error: autoprefixer did not output the correct CSS:"
36 echo "$actual_output"
37 echo "!="
38 echo "$expected_output"
39 exit 1
40 fi
41
42 # needed for Nix to register the command as successful
43 touch $out
44''