Add test for Zipgenotypingfiles worker

spec/workers/zipgenotypingfiles_spec.rb

@@ -0,0 +1,114 @@
+# frozen_string_literal: true
+
+RSpec.describe Zipgenotypingfiles do
+  subject(:worker) { described_class.new }
+
+  let!(:tentacle) { create(:phenotype, characteristic: 'tentacle') }
+
+  context 'when there are genotypes found' do
+    # User with matching phenotype and variant
+    let!(:user_1) { create(:user) }
+    let!(:genotype_1) do
+      create(:genotype, user: user_1, genotype: genotype_file_1)
+    end
+    let(:genotype_file_1) do
+      StringIO.new('user 1 genotype')
+    end
+    let!(:user_phenotype_1) do
+      create(
+        :user_phenotype,
+        user: user_1,
+        phenotype: tentacle,
+        variation: 'purple'
+      )
+    end
+
+    # Second user with matching phenotype and variant
+    let!(:user_2) { create(:user) }
+    let!(:genotype_2) do
+      create(:genotype, user: user_2, genotype: genotype_file_2)
+    end
+    let(:genotype_file_2) do
+      StringIO.new('user 2 genotype')
+    end
+    let!(:user_phenotype_2) do
+      create(
+        :user_phenotype,
+        user: user_2,
+        phenotype: tentacle,
+        variation: 'also purple'
+      )
+    end
+
+    # User with other variant
+    let!(:user_3) { create(:user) }
+    let!(:genotype_3) do
+      create(:genotype, user: user_3, genotype: genotype_file_3)
+    end
+    let(:genotype_file_3) do
+      StringIO.new('user 3 genotype')
+    end
+    let!(:user_phenotype_3) do
+      create(
+        :user_phenotype,
+        user: user_3,
+        phenotype: tentacle,
+        variation: 'green'
+      )
+    end
+
+    let!(:slime) { create(:phenotype, characteristic: 'slime') }
+
+    # User with other phenotype
+    let!(:user_4) { create(:user) }
+    let!(:genotype_4) do
+      create(:genotype, user: user_4, genotype: genotype_file_4)
+    end
+    let(:genotype_file_4) do
+      StringIO.new('user 4 genotype')
+    end
+    let!(:user_phenotype_4) do
+      create(
+        :user_phenotype,
+        user: user_4,
+        phenotype: slime,
+        variation: 'purple'
+      )
+    end
+
+    it 'zips genotyping files' do
+      worker.perform(
+        tentacle.id,
+        user_phenotype_1.variation,
+        'user@example.com'
+      )
+
+      mail = ActionMailer::Base.deliveries.last
+      expect(mail.subject)
+        .to eq('openSNP.org: The data you requested is ready to be downloaded')
+
+      file = mail.text_part.decoded[%r{data/zip/.*?\.zip}]
+
+      Zip::File.open(Rails.root.join('public', file)) do |zip_file|
+        expect(zip_file.entries.count).to eq(2)
+        expect(zip_file.glob("user#{user_1.id}_*.txt").first.get_input_stream.read)
+          .to eq(File.read(genotype_1.genotype.path))
+        expect(zip_file.glob("user#{user_2.id}_*.txt").first.get_input_stream.read)
+          .to eq(File.read(genotype_2.genotype.path))
+      end
+    end
+  end
+
+  context 'when there are no genotypes found' do
+    it 'tells the user' do
+      worker.perform(
+        tentacle.id,
+        'blue',
+        'user@example.com'
+      )
+
+      expect(ActionMailer::Base.deliveries.last.subject)
+        .to eq('openSNP.org: No genotyping files match your search')
+    end
+  end
+end