test: write tests

backend/spec/requests/movies/destroy_spec.rb

@@ -0,0 +1,36 @@
+require "rails_helper"
+
+RSpec.describe "Movies", type: :request do
+  describe "DELETE /api/movies/:id" do
+    context "when movie exists" do
+      let!(:movie) {
+        Movies::Create.new(
+          params: {
+            director: "George Lucas",
+            writer: "George Lucas",
+            title: "Star Wars",
+            producer: "George Lucas",
+            production_company: "Lucasfilm",
+            cast: ["Han Solo", "Princess Leia"],
+            year: 1977
+          }
+        ).call
+      }
+
+      it "responds with 204" do
+        expect { delete "/api/movies/#{movie.id}" }
+          .to change { MoviesRepository.count }.by(-1)
+
+        expect(response).to have_http_status(:no_content)
+      end
+    end
+
+    context "when movie does not exist" do
+      it "responds with 204" do
+        delete "/api/movies/123"
+
+        expect(response).to have_http_status(:no_content)
+      end
+    end
+  end
+end

backend/spec/requests/movies/show_spec.rb

@@ -0,0 +1,43 @@
+require "rails_helper"
+
+RSpec.describe "Movies", type: :request do
+  let(:response_json) { JSON.parse(response.body) }
+
+  describe "GET /api/movies/:id" do
+    context "when there is a movie" do
+      let!(:game) {
+        Movies::Create.new(
+          params: {
+            director: "George Lucas",
+            writer: "George Lucas",
+            title: "Star Wars",
+            producer: "George Lucas",
+            production_company: "Lucasfilm",
+            cast: ["Han Solo", "Princess Leia"],
+            year: 1977
+          }
+        ).call
+      }
+
+      it "responds with a movie" do
+        get "/api/movies/#{game.id}"
+
+        expect(response_json).to include({
+          "title" => "Star Wars",
+          "cast" => ["Han Solo", "Princess Leia"],
+          "year" => 1977
+        })
+        expect(response).to have_http_status(:ok)
+      end
+    end
+
+    context "when there is no movie" do
+      it "responds with an error" do
+        get "/api/movies/1"
+
+        expect(response_json).to eq({ "error" => "Movie not found" })
+        expect(response).to have_http_status(:not_found)
+      end
+    end
+  end
+end

backend/spec/requests/movies/update_spec.rb

@@ -0,0 +1,45 @@
+require "rails_helper"
+
+RSpec.describe "Movies", type: :request do
+  let(:response_json) { JSON.parse(response.body) }
+
+  let(:params) do
+    {
+      "movie" => {
+        "title": "Star Wars 2"
+      }
+    }
+  end
+
+  describe "PATCH /api/movies/:id" do
+    context "when movie exists" do
+      let!(:movie) {
+        Movies::Create.new(
+          params: {
+            director: "George Lucas",
+            writer: "George Lucas",
+            title: "Star Wars",
+            producer: "George Lucas",
+            production_company: "Lucasfilm",
+            cast: ["Han Solo", "Princess Leia"],
+            year: 1977
+          }
+        ).call
+      }
+
+      it "responds with 200" do
+        patch "/api/movies/#{movie.id}", params: params
+
+        expect(response).to have_http_status(:no_content)
+      end
+    end
+
+    context "when movie does not exist" do
+      it "responds with 404" do
+        patch "/api/movies/1", params: params
+
+        expect(response).to have_http_status(:not_found)
+      end
+    end
+  end
+end