Test populate_match_below Interactor

spec/interactors/populate_match_below_interactor_spec.rb

@@ -0,0 +1,43 @@
+# frozen_string_literal: true
+
+RSpec.describe PopulateMatchBelow do
+  before do
+    @match = create(:match)
+    @objects_to_save = [create(:match), create_list(:match_score, 2)]
+  end
+
+  context 'no exception' do
+    let(:context) do
+      PopulateMatchBelow.call(match: @match)
+    end
+    before do
+      allow(PlayoffStageService)
+        .to receive(:populate_match_below).with(@match)
+                                          .and_return(@objects_to_save)
+    end
+
+    it 'succeeds' do
+      expect(context).to be_a_success
+    end
+
+    it 'provides the objects to save' do
+      expect(context.object_to_save).to match_array(@objects_to_save)
+    end
+  end
+
+  context 'exception is thrown' do
+    let(:context) do
+      PopulateMatchBelow.call(match: @match)
+    end
+    before do
+      allow(PlayoffStageService)
+        .to receive(:populate_match_below).with(@match)
+                                          .and_throw('This failed :(')
+    end
+
+    it 'fails' do
+      test = context.failure?
+      expect(test).to eq(true)
+    end
+  end
+end