extend json tests, remove dot-resolver

test/unit/mock/files/policyfile.lock.json

@@ -1,12 +1,12 @@
 {
   "name": "demo",
   "run_list": [
-    "apache2",
+    "a",
-    "omnibus"
+    "b"
   ],
-  "cookbook_locks": {
+  "x": {
-    "omnibus": {
+    "y": {
-      "version": "2.2.0"
+      "z": 123
     }
   }
 }

test/unit/resources/json_test.rb

@@ -6,11 +6,31 @@ require 'helper'
 require 'inspec/resource'
 
 describe 'Inspec::Resources::JSON' do
-  it 'verify json parsing' do
+  describe 'when loading a valid json' do
-    resource = load_resource('json', 'policyfile.lock.json')
+    let (:resource) { load_resource('json', 'policyfile.lock.json') }
-    _(resource.params).wont_equal nil
+
+    it 'gets params as a hashmap' do
+      _(resource.params).must_be_kind_of Hash
+    end
+
+    it 'retrieves nil if a param is missing' do
+      _(resource.params['missing']).must_be_nil
+    end
+
+    it 'retrieves params by name' do
       _(resource.send('name')).must_equal 'demo'
-    _(resource.send('run_list')).must_equal %w{apache2 omnibus}
+    end
-    _(resource.send('cookbook_locks.omnibus.version')).must_equal '2.2.0'
+
+    it 'retrieves an array by name' do
+      _(resource.send('run_list')).must_equal %w{a b}
+    end
+
+    it 'doesnt resolve dot-notation names' do
+      _(resource.send('x.y.z')).must_be_nil
+    end
+
+    it 'doesnt resolve symbol-notation names' do
+      _(resource.send(:'x.y.z')).must_be_nil
+    end
   end
 end