Add test for takex

package.json

@@ -7,7 +7,8 @@
   "homepage": "https://github.com/kuy/redux-saga-examples",
   "scripts": {
     "start": "./node_modules/.bin/webpack-dev-server --progress --color --content-base public/",
-    "build": "./node_modules/.bin/webpack"
+    "build": "./node_modules/.bin/webpack",
+    "test": "./node_modules/.bin/mocha --compilers js:babel-register */test/*.js"
   },
   "authors": [
     "Yuki Kodama <endflow.net@gmail.com>"

takex/sagas.js

@@ -1,6 +1,6 @@
 import { call, fork, take } from 'redux-saga/effects';
 
-function* takexSaga(pattern) {
+export function* takexSaga(pattern) {
   let action;
   while (true) {
     action = yield take('*');
@@ -14,11 +14,11 @@ function* takexSaga(pattern) {
   return action;
 }
 
-function takex(pattern) {
+export function takex(pattern) {
   return call(takexSaga, pattern);
 }
 
-function* handleActions() {
+export function* handleActions() {
   while (true) {
     const action = yield takex(/^FETCH_/);
     console.log('handle', action.type);

takex/test/sagas.js

@@ -0,0 +1,41 @@
+import 'babel-polyfill';
+import assert from 'assert';
+import { handleActions, takex, takexSaga } from '../sagas';
+import { fork, take } from 'redux-saga/effects';
+
+describe('sagas', () => {
+  describe('.handleActions', () => {
+    it('takes filtered actions', () => {
+      const saga = handleActions();
+      let ret = saga.next();
+      assert.deepStrictEqual(ret.value, takex(/^FETCH_/));
+      assert(!ret.done);
+    });
+  });
+
+  describe('.takexSaga', () => {
+    it('takes an action matching given regex', () => {
+      const saga = takexSaga(/^FETCH_/);
+      let ret = saga.next();
+      assert.deepStrictEqual(ret.value, take('*'));
+      assert(!ret.done);
+
+      const action = { type: 'FETCH_FOO' };
+      ret = saga.next(action);
+      assert.deepStrictEqual(ret.value, action);
+      assert(ret.done);
+    });
+
+    it('ignores an action', () => {
+      const saga = takexSaga(/^FETCH_/);
+      let ret = saga.next();
+      assert.deepStrictEqual(ret.value, take('*'));
+      assert(!ret.done);
+
+      const action = { type: 'SUCCESS_FOO' };
+      ret = saga.next(action);
+      assert.deepStrictEqual(ret.value, take('*'));
+      assert(!ret.done);
+    });
+  });
+});