spec/support/shared_examples/a_serializer.rb in rambling-trie-2.3.0 vs spec/support/shared_examples/a_serializer.rb in rambling-trie-2.3.1

@@ -1,8 +1,10 @@
 # frozen_string_literal: true
 
 shared_examples_for 'a serializer' do
+  subject(:serializer) { described_class.new }
+
   let(:trie) { Rambling::Trie.create }
   let(:tmp_path) { File.join ::SPEC_ROOT, 'tmp' }
   let(:filepath) { File.join tmp_path, "trie-root.#{format}" }
   let(:content) { trie.root }
 
@@ -10,28 +12,49 @@
     trie.concat %w(a few words to validate that load and dump are working)
     FileUtils.rm_f filepath
   end
 
   describe '#dump' do
-    before do
-      serializer.dump content, filepath
-    end
+    [true, false].each do |compress_value|
+      context "with compressed=#{compress_value} trie" do
+        let(:formatted_content) { format_content.call content }
 
-    it 'creates the file with the provided path' do
-      expect(File.exist? filepath).to be true
-    end
+        before { trie.compress! if compress_value }
 
-    it 'converts the contents to the appropriate format' do
-      expect(File.read(filepath).size).to be_within(10).of formatted_content.size
+        it 'returns the size in bytes of the file dumped' do
+          total_bytes = serializer.dump content, filepath
+          expect(total_bytes).to be_within(20).of formatted_content.size
+        end
+
+        it 'creates the file with the provided path' do
+          serializer.dump content, filepath
+          expect(File.exist? filepath).to be true
+        end
+
+        it 'converts the contents to the appropriate format' do
+          serializer.dump content, filepath
+          expect(File.size filepath).to be_within(20).of formatted_content.size
+        end
+      end
     end
   end
 
   describe '#load' do
-    before do
-      serializer.dump content, filepath
-    end
+    [true, false].each do |compress_value|
+      context "with compressed=#{compress_value} trie" do
+        before do
+          trie.compress! if compress_value
+          serializer.dump content, filepath
+        end
 
-    it 'loads the dumped object back into memory' do
-      expect(serializer.load filepath).to eq content
+        it 'loads the dumped object back into memory' do
+          expect(serializer.load filepath).to eq content
+        end
+
+        it "loads a compressed=#{compress_value} object" do
+          loaded = serializer.load filepath
+          expect(loaded.compressed?).to be compress_value if :file != format
+        end
+      end
     end
   end
 end