Feature/bael 5756 choose api (#13055)

* BAEL-5756: Rest controller

* BAEL-5756: GraphQL controller (without tests)

* BAEL-5756: Fix GraphQL test

* BAEL-5756: Fix GraphQL test 2

* BAEL-5756: GRPC working

* BAEL-5756: GRPC with Spring Boot

* BAEL-5756: Books proto service

* BAEL-5756: Fix grpc integration test

* BAEL-5756: Refactor

* BAEL-5756: Revert some changes

spring-boot-modules/spring-boot-graphql/src/test/java/com/baeldung/chooseapi/controllers/BooksControllerGraphQLIntegrationTest.java

@@ -0,0 +1,33 @@
+package com.baeldung.chooseapi.controllers;
+
+import com.baeldung.chooseapi.ChooseApiApp;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.graphql.test.tester.HttpGraphQlTester;
+import org.springframework.test.context.ActiveProfiles;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT, classes = ChooseApiApp.class)
+@ActiveProfiles("chooseapi")
+class BooksControllerGraphQLIntegrationTest {
+
+    @Autowired
+    private HttpGraphQlTester graphQlTester;
+
+    @Test
+    void givenBooksServiceThatReturnThreeBooks_whenCallingGraphQLEndpoint_thenThreeBooksAreReturned() throws Exception {
+        String document = "query { books { title year author { firstName lastName }}}";
+        Path expectedResponse = Paths.get("src/test/resources/graphql-test/books_expected_response.json");
+        String expectedJson = new String(Files.readAllBytes(expectedResponse));
+
+        this.graphQlTester.document(document)
+          .execute()
+          .path("books")
+          .matchesJson(expectedJson);
+    }
+
+}

spring-boot-modules/spring-boot-graphql/src/test/java/com/baeldung/chooseapi/controllers/BooksControllerRestIntegrationTest.java

@@ -0,0 +1,36 @@
+package com.baeldung.chooseapi.controllers;
+
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.web.servlet.MockMvc;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+@SpringBootTest
+@AutoConfigureMockMvc
+class BooksControllerRestIntegrationTest {
+
+    @Autowired
+    private MockMvc mockMvc;
+
+    @Test
+    void givenBooksServiceThatReturnThreeBooks_whenCallingRestEndpoint_thenThreeBooksAreReturned() throws Exception {
+        Path expectedResponse = Paths.get("src/test/resources/graphql-test/books_expected_response.json");
+        String expectedJson = new String(Files.readAllBytes(expectedResponse));
+
+        this.mockMvc.perform(get("/rest/books"))
+          .andDo(print())
+          .andExpect(status().isOk())
+          .andExpect(content().json(expectedJson));
+    }
+
+}

spring-boot-modules/spring-boot-graphql/src/test/java/com/baeldung/chooseapi/grpc/BooksServiceGrpcIntegrationTest.java

@@ -0,0 +1,55 @@
+package com.baeldung.chooseapi.grpc;
+
+import com.baeldung.chooseapi.dtos.Book;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import net.devh.boot.grpc.client.inject.GrpcClient;
+import org.json.JSONException;
+import org.junit.jupiter.api.Test;
+import org.skyscreamer.jsonassert.JSONAssert;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.annotation.DirtiesContext;
+import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
+
+import com.baeldung.chooseapi.BooksServiceOuterClass.BooksRequest;
+import com.baeldung.chooseapi.BooksServiceOuterClass.BooksResponse;
+
+import com.baeldung.chooseapi.BooksServiceGrpc.BooksServiceBlockingStub;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.List;
+import java.util.stream.Collectors;
+
+@SpringBootTest(properties = {
+  "grpc.server.inProcessName=test", // Enable inProcess server
+  "grpc.server.port=-1", // Disable external server
+  "grpc.client.inProcess.address=in-process:test" // Configure the client to connect to the inProcess server
+})
+@SpringJUnitConfig(GrpcIntegrationTestConfig.class)
+@DirtiesContext // Ensures that the grpc-server is properly shutdown after each test
+class BooksServiceGrpcIntegrationTest {
+
+    private static final ObjectMapper objectMapper = new ObjectMapper();
+
+    @GrpcClient("inProcess")
+    private BooksServiceBlockingStub booksServiceGrpc;
+
+    @Test
+    @DirtiesContext
+    void givenBooksServiceThatReturnThreeBooks_whenCallingGrpcEndpoint_thenThreeBooksAreReturned() throws IOException, JSONException {
+        Path expectedResponse = Paths.get("src/test/resources/graphql-test/books_expected_response.json");
+        String expectedJson = new String(Files.readAllBytes(expectedResponse));
+
+        BooksRequest request = BooksRequest.newBuilder().build();
+        BooksResponse response = booksServiceGrpc.books(request);
+
+        List<Book> books = response.getBookList().stream()
+          .map(GrpcBooksMapper::mapProtoToBook)
+          .collect(Collectors.toList());
+
+        JSONAssert.assertEquals(objectMapper.writeValueAsString(books), expectedJson, true);
+    }
+
+}

spring-boot-modules/spring-boot-graphql/src/test/java/com/baeldung/chooseapi/grpc/GrpcIntegrationTestConfig.java

@@ -0,0 +1,28 @@
+package com.baeldung.chooseapi.grpc;
+
+import com.baeldung.chooseapi.services.BooksService;
+import net.devh.boot.grpc.client.autoconfigure.GrpcClientAutoConfiguration;
+import net.devh.boot.grpc.server.autoconfigure.GrpcServerAutoConfiguration;
+import net.devh.boot.grpc.server.autoconfigure.GrpcServerFactoryAutoConfiguration;
+import org.springframework.boot.autoconfigure.ImportAutoConfiguration;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@ImportAutoConfiguration({
+  GrpcServerAutoConfiguration.class, // Create required server beans
+  GrpcServerFactoryAutoConfiguration.class, // Select server implementation
+  GrpcClientAutoConfiguration.class}) // Support @GrpcClient annotation
+class GrpcIntegrationTestConfig {
+
+    @Bean
+    BooksService booksService() {
+        return new BooksService();
+    }
+
+    @Bean
+    BooksServiceGrpc booksServiceGrpc() {
+        return new BooksServiceGrpc(booksService());
+    }
+
+}

spring-boot-modules/spring-boot-graphql/src/test/resources/graphql-test/books_expected_response.json

@@ -0,0 +1,26 @@
+[
+  {
+    "title": "Philosopher's Stone",
+    "year": 1997,
+    "author": {
+      "firstName": "Joanne",
+      "lastName": "Rowling"
+    }
+  },
+  {
+    "title": "Goblet of Fire",
+    "year": 2000,
+    "author": {
+      "firstName": "Joanne",
+      "lastName": "Rowling"
+    }
+  },
+  {
+    "title": "Deathly Hallows",
+    "year": 2007,
+    "author": {
+      "firstName": "Joanne",
+      "lastName": "Rowling"
+    }
+  }
+]