{"action":"created","comment":{"url":"https://api.github.com/repos/jmmastey/level_up_exercises/pulls/comments/37897542","id":37897542,"diff_hunk":"@@ -0,0 +1,72 @@\n+require_relative \"../data_analyzer\"\n+\n+describe DataAnalyzer do\n+  let(:filepath) { File.expand_path(\"../data/sample_data.json\", __FILE__) }\n+  let(:loader) { DataLoader.new(filepath) }\n+\n+  subject(:analyzer) { DataAnalyzer.new(loader) }\n+\n+  context \"when an instance is created\" do\n+    it \"is a valid instance\" do\n+      is_expected.to be_instance_of(DataAnalyzer)\n+    end\n+  end\n+\n+  context \"when data is loaded\" do\n+    before(:each) do\n+      analyzer.load(agroup: { cohort: \"A\" }, bgroup: { cohort: \"B\" })\n+    end\n+\n+    it \"contains two distinct groups\" do\n+      expect(analyzer.groups.size).to eq(2)\n+    end\n+\n+    it \"reports the total sample size if no group is specified\" do","path":"data_science/spec/data_analyzer_spec.rb","position":24,"original_position":24,"commit_id":"5889e534e54c805ea3dce26275a21039608a616f","original_commit_id":"5889e534e54c805ea3dce26275a21039608a616f","user":{"login":"DejaAugustine","id":876181,"avatar_url":"https://avatars.githubusercontent.com/u/876181?v=3","gravatar_id":"","url":"https://api.github.com/users/DejaAugustine","html_url":"https://github.com/DejaAugustine","followers_url":"https://api.github.com/users/DejaAugustine/followers","following_url":"https://api.github.com/users/DejaAugustine/following{/other_user}","gists_url":"https://api.github.com/users/DejaAugustine/gists{/gist_id}","starred_url":"https://api.github.com/users/DejaAugustine/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/DejaAugustine/subscriptions","organizations_url":"https://api.github.com/users/DejaAugustine/orgs","repos_url":"https://api.github.com/users/DejaAugustine/repos","events_url":"https://api.github.com/users/DejaAugustine/events{/privacy}","received_events_url":"https://api.github.com/users/DejaAugustine/received_events","type":"User","site_admin":false},"body":"Makes sense. I'll refactor with that in 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