Better coverage

src/index.js

@@ -9,8 +9,10 @@ import LocalByDefault from 'postcss-modules-local-by-default';
 import Scope from 'postcss-modules-scope';
 import Parser from './parser';
 
+const defaultRoot = process.cwd();
+const tokensByFile = {};
 let plugins = [LocalByDefault, ExtractImports, Scope];
-let rootDir;
+let root = defaultRoot;
 
 /**
  * @param  {string}   sourceString The file content
@@ -28,8 +30,6 @@ function load(sourceString, sourcePath, trace, pathFetcher) {
 }
 
 hook(filename => {
-  const root = rootDir || dirname(filename);
-  const tokensByFile = {};
   let importNr = 0;
 
   const fetch = (_newPath, _relativeTo, _trace) => {
@@ -67,7 +67,7 @@ export default function configure(opts = {}) {
     ? customPlugins
     : [LocalByDefault, ExtractImports, Scope];
 
-  if (opts.root && typeof opts.root === 'string') {
-    rootDir = opts.root;
-  }
+  root = opts.root && typeof opts.root === 'string'
+    ? opts.root
+    : defaultRoot;
 }

test/cases/simple/expected.json

@@ -0,0 +1,3 @@
+{
+  "localName": "_test_cases_simple_source__localName"
+}

test/cases/simple/source.css

@@ -0,0 +1,4 @@
+.localName
+{
+  color: #369;
+}

test/index.js

@@ -0,0 +1,17 @@
+import { equal } from 'assert';
+import { readFileSync } from 'fs';
+import { join } from 'path';
+import hook from '../src';
+
+describe('css-modules-require-hook', () => {
+  describe('without options', () => {
+    before(hook);
+
+    it('should return tokens', () => {
+      const expectedTokens = JSON.parse(readFileSync(join(__dirname, './cases/simple/expected.json'), 'utf8'));
+      const tokens = require('./cases/simple/source.css');
+
+      equal(JSON.stringify(expectedTokens), JSON.stringify(tokens));
+    });
+  });
+});