specify directory

README.md

@@ -23,7 +23,7 @@ Some key points of **test-funnel**:
 ```shell
 $ npm -g install test-funnel
 ```
-# Usgae
+# CLI Usgae
 After installed, command `test-funnel` will be available. Run command `test-funnel -h` to get help guidelines.
 ```shell
 Usage: test-funnel [options]
@@ -38,5 +38,19 @@ Options:
   -r, --runner <name>             test runner, could be one of jest/mocha, not trigger runner if not specified
   -h, --help                      output usage information
 ```
+
+# API Usage
+```js
+var Funnel = require('test-funnel');
+​
+Funnel ({
+    baseFolder: "./",
+    testFolder: "test",
+    testFileExtention: "test.js",
+    newCommit: "HEAD~0",
+    oldCommit: "HEAD~1",
+    runner: ""
+});
+```
 # License
 MIT License

lib/api.js

@@ -14,7 +14,7 @@ const defaultConfig = {
 
 async function run(res, config) {
     await new Promise((resolve, reject) => {
-        let cmd = config.runner == "jest" ? 'jest --testPathPattern=' + res.join("|") : 'mocha -g=' + res.join("|");
+        let cmd = config.runner == "jest" ? 'jest --rootDir=' + config.testFolder + ' --testPathPattern=' + res.join("|") : 'mocha -g=' + res.join("|");
         console.log("start to run tests, command: " + cmd);
         exec(cmd, function(error, stdout, stderr) {
             console.log('stdout: ' + stdout);

package.json

@@ -1,6 +1,6 @@
 {
   "name": "test-funnel",
-  "version": "1.1.0",
+  "version": "1.1.2",
   "description": "Javascript test selector",
   "main": "./bin/cli.js",
   "bin": {
@@ -9,7 +9,7 @@
   "scripts": {
     "test": "jest",
     "build": "rimraf dist/ && babel ./ --out-dir dist/ --ignore ./node_modules,./.babelrc,./package.json,./npm-debug.log --copy-files",
-    "start": "npm run build && node dist/bin/cli.js -r jest"
+    "start": "npm run build && node dist/bin/cli.js -r jest -o HEAD~7"
   },
   "jest": {
     "transform": {