Asserts! (#23)

* Release 1.3.1

configs/rollup.esm.config.js

@@ -1,5 +1,4 @@
-import uglify from 'rollup-plugin-uglify'
-
+const uglify = require('rollup-plugin-uglify')
 const babel = require('rollup-plugin-babel')
 const filesize = require('rollup-plugin-filesize')
 

configs/rollup.umd.config.js

@@ -1,5 +1,4 @@
-import uglify from 'rollup-plugin-uglify'
-
+const uglify = require('rollup-plugin-uglify')
 const commonjs = require('rollup-plugin-commonjs')
 const resolve = require('rollup-plugin-node-resolve')
 const babel = require('rollup-plugin-babel')

package.json

@@ -1,6 +1,6 @@
 {
   "name": "tram-one",
-  "version": "1.3.0",
+  "version": "1.3.1",
   "description": "🚋 Batteries Included View Framework",
   "main": "dist/tram-one.esm.js",
   "browser": "dist/tram-one.umd.js",

tram-one.js

@@ -1,4 +1,5 @@
 const xtend = require('xtend')
+const assert = require('assert')
 const nanorouter = require('nanorouter')
 const belCreateElement = require('bel').createElement
 const rbelRegister = require('rbel')
@@ -8,6 +9,10 @@ const urlListener = require('url-listener')
 
 class Tram {
   constructor(options) {
+    if (options) {
+      assert.equal(typeof options, 'object', 'Tram-One: options should be an object')
+    }
+
     options = options || {}
     const defaultRoute = options.defaultRoute || '/404'
 
@@ -18,13 +23,18 @@ class Tram {
   }
 
   addReducer(key, reducer, state) {
+    assert.equal(typeof reducer, 'function', 'Tram-One: reducer should be a function')
+
     this.reducers[key] = reducer
     this.state[key] = state
 
     return this
   }
 
   addRoute(path, page) {
+    assert.equal(typeof path, 'string', 'Tram-One: path should be a string')
+    assert.equal(typeof page, 'function', 'Tram-One: page should be a function')
+
     this.router.on(path, (pathParams) => (state) => {
       const completeState = xtend(
         state, {dispatch: this.store.dispatch},
@@ -37,6 +47,8 @@ class Tram {
   }
 
   dispatch(action) {
+    assert.equal(typeof action, 'object', 'Tram-One: action should be an object')
+
     this.store.dispatch(action)
   }
 
@@ -59,6 +71,9 @@ class Tram {
 
   mount(selector, pathName, state) {
     const target = (typeof selector) === 'string' ? document.querySelector(selector) : selector
+    if (target === null) {
+      console.warn('Tram-One: could not find target, is the element on the page yet?')
+    }
     if (!target.firstElementChild) {
       const targetChild = document.createElement('div')
       target.appendChild(targetChild)
@@ -85,6 +100,11 @@ class Tram {
   }
 
   static html(registry) {
+    if (registry) {
+      assert.equal(typeof registry, 'object', 'Tram-One: registry should be an object')
+      assert.ok(!(registry instanceof Array), 'Tram-One: registry should be an object')
+    }
+
     return rbelRegister(belCreateElement, registry || {})
   }
 }