[pilot] added the Pilot::TesterExporter class unit tests (#20394)

* [pilot] added the Pilot::TesterExporter class unit tests

* Fix Lint warning.

pilot/spec/test_exporter_spec.rb

@@ -0,0 +1,135 @@
+require 'csv'
+
+describe Pilot::TesterExporter do
+  describe ".export_testers" do
+    let(:fake_tester_exporter) { Pilot::TesterExporter.new }
+    let(:fake_tester_manager) { double("tester manager") }
+    let(:fake_testers_file_path) { "fake testers_file_path" }
+    let(:fake_apple_id) { "fake apple_id" }
+    let(:fake_app_identifier) { "fake app_identifier" }
+    let(:fake_input_options) do
+      {
+        testers_file_path: fake_testers_file_path,
+        apple_id: fake_apple_id,
+        app_identifier: fake_app_identifier
+      }
+    end
+
+    before(:each) do
+      fake_tester_exporter.instance_variable_set(:@config, fake_input_options)
+      allow(Pilot::TesterManager).to receive(:new).and_return(fake_tester_manager)
+      allow(fake_tester_exporter).to receive(:start).with(fake_input_options)
+    end
+
+    context "when able to find app using apple_id and app_identifier" do
+      let(:fake_app) { "fake app" }
+
+      before(:each) do
+        allow(fake_app).to receive(:get_beta_testers).with(includes: "apps,betaTesterMetrics,betaGroups").and_return([])
+        allow(fake_tester_exporter).to receive(:find_app).with(apple_id: fake_apple_id, app_identifier: fake_app_identifier).and_return(fake_app)
+      end
+
+      it "exports beta testers inside the correct file path" do
+        expect(CSV).to receive(:open).with(fake_testers_file_path, "w")
+
+        fake_tester_exporter.export_testers(fake_input_options)
+      end
+
+      it "shows a success message after export" do
+        expect(UI).to receive(:success).with("Successfully exported CSV to #{fake_testers_file_path}")
+
+        fake_tester_exporter.export_testers(fake_input_options)
+      end
+    end
+
+    context "when failed to find app using apple_id and app_identifier" do
+      let(:fake_app) { "fake app" }
+
+      before(:each) do
+        allow(fake_tester_exporter).to receive(:find_app).with(apple_id: fake_apple_id, app_identifier: fake_app_identifier).and_return(nil)
+        allow(Spaceship::ConnectAPI::BetaTester).to receive(:all).with(includes: "apps,betaTesterMetrics,betaGroups").and_return([])
+      end
+
+      it "exports beta testers inside the correct file path" do
+        expect(CSV).to receive(:open).with(fake_testers_file_path, "w")
+
+        fake_tester_exporter.export_testers(fake_input_options)
+      end
+
+      it "shows a success message after export" do
+        expect(UI).to receive(:success).with("Successfully exported CSV to #{fake_testers_file_path}")
+
+        fake_tester_exporter.export_testers(fake_input_options)
+      end
+    end
+  end
+
+  describe ".find_app" do
+    let(:fake_tester_exporter) { Pilot::TesterExporter.new }
+    let(:fake_app) { "fake app" }
+
+    context "when app_identifier is given" do
+      let(:fake_app_identifier) { "fake app_identifier" }
+
+      context "when able to find app using app_identifier" do
+        before(:each) do
+          allow(Spaceship::ConnectAPI::App).to receive(:find).with(fake_app_identifier).and_return(fake_app)
+        end
+
+        it "returns the app correctly" do
+          received_app = fake_tester_exporter.find_app(app_identifier: fake_app_identifier)
+
+          expect(received_app).to eq(fake_app)
+        end
+      end
+
+      context "when failed to find app using app_identifier" do
+        before(:each) do
+          allow(Spaceship::ConnectAPI::App).to receive(:find).with(fake_app_identifier).and_return(nil)
+        end
+
+        it "raises an fatal exception with message" do
+          expect(UI).to receive(:user_error!).with("Could not find an app by #{fake_app_identifier}")
+
+          fake_tester_exporter.find_app(app_identifier: fake_app_identifier)
+        end
+      end
+    end
+
+    context "when app_identifier is not given but apple_id is given" do
+      let(:fake_apple_id) { "fake apple_id" }
+
+      context "when able to find app using apple_id" do
+        before(:each) do
+          allow(Spaceship::ConnectAPI::App).to receive(:get).with(app_id: fake_apple_id).and_return(fake_app)
+        end
+
+        it "returns the app correctly" do
+          received_app = fake_tester_exporter.find_app(apple_id: fake_apple_id)
+
+          expect(received_app).to eq(fake_app)
+        end
+      end
+
+      context "when failed to find app using apple_id" do
+        before(:each) do
+          allow(Spaceship::ConnectAPI::App).to receive(:get).with(app_id: fake_apple_id).and_return(nil)
+        end
+
+        it "raises an fatal exception with message" do
+          expect(UI).to receive(:user_error!).with("Could not find an app by #{fake_apple_id}")
+
+          fake_tester_exporter.find_app(apple_id: fake_apple_id)
+        end
+      end
+    end
+
+    context "when app_identifier and apple_id both are not given" do
+      it "raises an fatal exception with message" do
+        expect(UI).to receive(:user_error!).with("You must include an `app_identifier` to `list_testers`")
+
+        fake_tester_exporter.find_app
+      end
+    end
+  end
+end