test: refactored test suite to use mocks (#636)

lib/updaters/index.js

@@ -1,13 +1,17 @@
 const path = require('path')
 const JSON_BUMP_FILES = require('../../defaults').bumpFiles
+const updatersByType = {
+  json: require('./types/json'),
+  'plain-text': require('./types/plain-text')
+}
 const PLAIN_TEXT_BUMP_FILES = ['VERSION.txt', 'version.txt']
 
 function getUpdaterByType (type) {
-  try {
-    return require(`./types/${type}`)
-  } catch (e) {
-    throw Error(`Unable to locate updated for provided type (${type}).`)
+  const updater = updatersByType[type]
+  if (!updater) {
+    throw Error(`Unable to locate updater for provided type (${type}).`)
   }
+  return updater
 }
 
 function getUpdaterByFilename (filename) {

package.json

@@ -6,7 +6,8 @@
   "scripts": {
     "fix": "eslint . --fix",
     "posttest": "eslint .",
-    "test": "nyc mocha --timeout=30000 test.js",
+    "test": "nyc mocha --timeout=30000",
+    "test:unit": "mocha --exclude test/git.spec.js",
     "release": "bin/cli.js"
   },
   "nyc": {
@@ -61,9 +62,10 @@
     "eslint-plugin-promise": "^4.2.1",
     "eslint-plugin-standard": "^4.0.1",
     "mocha": "^8.0.0",
-    "mock-git": "^2.0.0",
+    "mock-fs": "^4.12.0",
     "mockery": "^2.1.0",
     "nyc": "^14.1.1",
-    "shelljs": "^0.8.4"
+    "shelljs": "^0.8.4",
+    "std-mocks": "^1.0.1"
   }
 }