Fix --syntax, --parser, & --stringifier options; add tests

Author: RyanZim

index.js

@@ -52,9 +52,9 @@ let input = argv._ || argv.input
 let output = argv.output
 
 const defaultOptions = {
-  parser: argv.parser,
-  syntax: argv.syntax,
-  strigifier: argv.strigifier,
+  parser: argv.parser ? require(argv.parser) : undefined,
+  syntax: argv.syntax ? require(argv.syntax) : undefined,
+  stringifier: argv.stringifier ? require(argv.stringifier) : undefined,
   map: argv.map
 }
 

package.json

@@ -41,6 +41,7 @@
     "nyc": "^10.0.0",
     "postcss-import": "^9.0.0",
     "standard": "^8.4.0",
+    "sugarss": "^0.2.0",
     "uuid": "^3.0.1"
   }
 }

test/fixtures/sugar-white.css

@@ -0,0 +1,3 @@
+.sugar {
+  color: white
+}

test/fixtures/sugar-white.sss

@@ -0,0 +1,2 @@
+.sugar
+  color: white

test/postcss-cli.js

@@ -18,3 +18,24 @@ test('--dir works', async function (t) {
   t.is(await read(path.join(outDir, 'a-red.css')), await read('test/fixtures/a-red.css'))
   t.is(await read(path.join(outDir, 'a-blue.css')), await read('test/fixtures/a-blue.css'))
 })
+
+test('--parser works', async function (t) {
+  var out = tmp('.css')
+  var { error } = await run(['test/fixtures/sugar-white.sss', '--parser', 'sugarss', '-o', out])
+  t.ifError(error)
+  t.is(await read(out), await read('test/fixtures/sugar-white.css'))
+})
+
+test('--stringifier works', async function (t) {
+  var out = tmp('.css')
+  var { error } = await run(['test/fixtures/sugar-white.css', '--stringifier', 'sugarss', '-o', out])
+  t.ifError(error)
+  t.is(await read(out), await read('test/fixtures/sugar-white.sss'))
+})
+
+test('--syntax works', async function (t) {
+  var out = tmp('.css')
+  var { error } = await run(['test/fixtures/sugar-white.sss', '--syntax', 'sugarss', '-o', out])
+  t.ifError(error)
+  t.is(await read(out), await read('test/fixtures/sugar-white.sss'))
+})