Add unit test coverage of ENC override

Author: Kevin Paulisse

spec/octocatalog-diff/tests/catalog-util/enc_spec.rb

@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require_relative '../spec_helper'
+require OctocatalogDiff::Spec.require_path('/api/v1')
 require OctocatalogDiff::Spec.require_path('/catalog-util/enc')
 
 describe OctocatalogDiff::CatalogUtil::ENC do
@@ -127,6 +128,34 @@
     end
   end
 
+  describe '#override_enc_parameters' do
+    before(:each) do
+      @logger, @logger_str = OctocatalogDiff::Spec.setup_logger
+    end
+
+    it 'should make no changes if no overrides are specified' do
+      subject = described_class.allocate
+      subject.instance_variable_set('@options', {})
+      subject.instance_variable_set('@content', "--- {}\n")
+      subject.send(:override_enc_parameters, @logger)
+      expect(subject.instance_variable_get('@content')).to eq("--- {}\n")
+      expect(@logger_str.string).to eq('')
+    end
+
+    it 'should update @content based on override' do
+      options = {
+        enc_override: [OctocatalogDiff::API::V1::Override.create_from_input('foo=(string)bar')]
+      }
+      subject = described_class.allocate
+      subject.instance_variable_set('@options', options)
+      subject.instance_variable_set('@content', "--- {}\n")
+      subject.send(:override_enc_parameters, @logger)
+      expect(subject.instance_variable_get('@content')).to eq("---\nfoo: bar\n")
+      logs = @logger_str.string.split(/\n/).compact.map { |x| OctocatalogDiff::Spec.strip_log_message(x) }
+      expect(logs).to include('DEBUG - ENC override: foo = "bar"')
+    end
+  end
+
   describe '#merge_enc_param' do
     before(:each) do
       @logger, @logger_str = OctocatalogDiff::Spec.setup_logger
@@ -155,6 +184,17 @@
       expect(struct['stuffs']).to eq('baz4')
     end
 
+    it 'should add a multi-depth parameter at the top level' do
+      struct = {
+        'parameters' => {
+          'foo' => 'bar',
+          'baz' => 'fuzz'
+        }
+      }
+      @subject.send(:merge_enc_param, struct, 'stuffs::morestuffs', 'baz4')
+      expect(struct['stuffs']['morestuffs']).to eq('baz4')
+    end
+
     it 'should remove a parameter at the top level' do
       struct = {
         'parameters' => {