Add test for spawn command

test/spawn_command.js

@@ -0,0 +1,34 @@
+'use strict';
+
+var assert = require('assert');
+var proxyquire = require('proxyquire');
+var sinon = require('sinon');
+
+describe('#spawnCommand()', function () {
+  beforeEach(function () {
+    this.crossSpawn = sinon.spy();
+    this.spawn = proxyquire('../lib/actions/spawn_command', {
+      'cross-spawn': this.crossSpawn
+    });
+  });
+
+  it('provide default options', function () {
+    this.spawn('foo');
+    sinon.assert.calledWith(this.crossSpawn, 'foo', undefined, { stdio: 'inherit' });
+  });
+
+  it('pass arguments', function () {
+    this.spawn('foo', 'bar');
+    sinon.assert.calledWith(this.crossSpawn, 'foo', 'bar', { stdio: 'inherit' });
+  });
+
+  it('pass options', function () {
+    this.spawn('foo', undefined, { foo: 1 });
+    sinon.assert.calledWith(this.crossSpawn, 'foo', undefined, { foo: 1, stdio: 'inherit' });
+  });
+
+  it('allow overriding default options', function () {
+    this.spawn('foo', undefined, { stdio: 'wut' });
+    sinon.assert.calledWith(this.crossSpawn, 'foo', undefined, { stdio: 'wut' });
+  });
+});