Added Tests

README.md

@@ -52,5 +52,5 @@ It reads from the following sources, performing a deep merge:
 
 ## TODO / Missing
 
-- hashicorp values support: if value == "vault:", treat it as secret
 - tests
+- hashicorp values support: if value == "vault:", treat it as secret
\ No newline at end of file

index.js

@@ -20,22 +20,21 @@ const iterate = function (obj) {
   }
 }
 
-
 try {
   fs.accessSync(configDefaults)
   config = JSON.parse(fs.readFileSync(configDefaults, 'utf8'))
 } catch(error) {
-  console.log('Could not read ' + configDefaults)
+  console.log('No File ' + configDefaults)
 }
 
 try {
   fs.accessSync(configLocal)
   config = merge(config, JSON.parse(fs.readFileSync(configLocal, 'utf8')))
 } catch (error) {
-  console.log('Could not read ' + configLocal)
+  console.log('No File ' + configLocal)
 }
 
-
 iterate(config)
 
+
 module.exports = config
\ No newline at end of file

index.test.js

+/* TODO: 
+
+* - overwrite
+* - env overwrite
+*/
+
+const fs = require('fs').promises
+
+let config 
+
+let jsonDefaults = {
+  setting:"defaultvalue",
+  another: {
+    setting:"avalue"
+  }
+}
+
+let jsonLocals = {
+  setting:"localvalue",
+  another: {
+    more:"stuff"
+  }
+}
+
+describe('config', function() {
+
+  it('should only have values from config.defaults.json', async function() {
+    await fs.writeFile('config.defaults.json', JSON.stringify(jsonDefaults))
+    config = require('./index')
+    await fs.unlink('config.defaults.json')
+
+    expect(config.setting).toBe('defaultvalue')
+    expect(config.another.setting).toBe('avalue')
+  })
+
+  it('should only have values from config.json', async function() {
+    await fs.writeFile('config.json', JSON.stringify(jsonLocals))
+    config = require('./Index')
+    await fs.unlink('config.json')
+
+    expect(config.setting).toBe('localvalue')
+    expect(config.another.more).toBe('stuff')
+  })
+
+  it('should have both values with preference to config.json', async function() {
+    await fs.writeFile('config.defaults.json', JSON.stringify(jsonDefaults))
+    await fs.writeFile('config.json', JSON.stringify(jsonLocals))
+    config = require('./iNdex')
+    await fs.unlink('config.json')
+    await fs.unlink('config.defaults.json')
+
+    expect(config.setting).toBe('localvalue')
+    expect(config.another.more).toBe('stuff')
+    expect(config.another.setting).toBe('avalue')
+  })
+
+  it('should have all values with preference to env', async function() {
+    await fs.writeFile('config.defaults.json', JSON.stringify(jsonDefaults))
+    await fs.writeFile('config.json', JSON.stringify(jsonLocals))
+    
+    process.env.setting = 'overwritten-by-env'
+    
+    config = require('./inDex')
+    await fs.unlink('config.json')
+    await fs.unlink('config.defaults.json')
+
+    expect(config.setting).toBe('overwritten-by-env')
+    expect(config.another.more).toBe('stuff')
+    expect(config.another.setting).toBe('avalue')
+  })
+})

package.json

@@ -20,5 +20,10 @@
   },
   "devDependencies": {
     "jest": "^25.1.0"
+  },
+  "jest": {
+    "collectCoverage": true,
+    "coverageReporters": ["json", "lcov", "text", "clover", "html"],
+    "coverageDirectory": "docs/coverage"
   }
 }