Add tests to webmvc-http sample

samples/webmvc-http/build.gradle

@@ -16,6 +16,7 @@ dependencies {
 	implementation 'org.springframework.boot:spring-boot-starter-actuator'
 	developmentOnly 'org.springframework.boot:spring-boot-devtools'
 	runtimeOnly 'com.h2database:h2'
+	testImplementation 'org.springframework:spring-webflux'
 	testImplementation 'org.springframework.boot:spring-boot-starter-test'
 }
 test {

samples/webmvc-http/src/test/java/io/spring/sample/graphql/project/JsonRequest.java

@@ -0,0 +1,68 @@
+/*
+ * Copyright 2002-2021 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.spring.sample.graphql.project;
+
+import java.util.Collections;
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+import org.springframework.lang.Nullable;
+import org.springframework.util.CollectionUtils;
+
+class JsonRequest {
+
+	private final String query;
+
+	@Nullable
+	private final String operationName;
+
+	private final Map<String, Object> variables;
+
+
+	private JsonRequest(String query, @Nullable String operationName, Map<String, Object> variables) {
+		this.query = query;
+		this.operationName = operationName;
+		this.variables = (!CollectionUtils.isEmpty(variables) ?
+				new LinkedHashMap<>(variables) : Collections.emptyMap());
+	}
+
+
+	public String getQuery() {
+		return query;
+	}
+
+	public String query() {
+		return this.query;
+	}
+
+	@Nullable
+	public String operationName() {
+		return this.operationName;
+	}
+
+	public Map<String, Object> variables() {
+		return this.variables;
+	}
+
+	public static JsonRequest create(String query) {
+		return new JsonRequest(query, null, Collections.emptyMap());
+	}
+
+	public static JsonRequest create(String query, String operationName, Map<String, Object> variables) {
+		return new JsonRequest(query, operationName, variables);
+	}
+
+}

samples/webmvc-http/src/test/java/io/spring/sample/graphql/project/JsonResponse.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright 2002-2021 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.spring.sample.graphql.project;
+
+import java.util.Collections;
+import java.util.Map;
+
+import org.springframework.lang.Nullable;
+
+class JsonResponse<T> {
+
+	private Map<String, T> data = Collections.emptyMap();
+
+	private Map<String, Map<String, Object>> errors = Collections.emptyMap();
+
+
+	public void setData(@Nullable Map<String, T> data) {
+		this.data = data;
+	}
+
+	public T getDataEntry() {
+		return this.data.values().iterator().next();
+	}
+
+	public void setErrors(@Nullable Map<String, Map<String, Object>> errors) {
+		this.errors = errors;
+	}
+
+	public Map<String, Map<String, Object>> getErrors() {
+		return this.errors;
+	}
+
+}

samples/webmvc-http/src/test/java/io/spring/sample/graphql/project/MockWebTestClientTests.java

@@ -0,0 +1,114 @@
+/*
+ * Copyright 2002-2021 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.spring.sample.graphql.project;
+
+import java.util.List;
+import java.util.function.Consumer;
+
+import org.junit.jupiter.api.BeforeEach;
+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.core.ParameterizedTypeReference;
+import org.springframework.http.MediaType;
+import org.springframework.test.web.reactive.server.WebTestClient;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.client.MockMvcWebTestClient;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Example tests using {@link WebTestClient} to connect to {@link MockMvc} as
+ * the "mock" server, i.e. without running an HTTP server.
+ */
+@SpringBootTest
+@AutoConfigureMockMvc
+public class MockWebTestClientTests {
+
+	private WebTestClient client;
+
+	@BeforeEach
+	public void setUp(@Autowired MockMvc mockMvc) {
+		this.client = MockMvcWebTestClient.bindTo(mockMvc)
+				.baseUrl("/graphql")
+				.defaultHeaders(headers -> headers.setContentType(MediaType.APPLICATION_JSON))
+				.build();
+	}
+
+	@Test
+	void jsonPath() {
+		String query = "{" +
+				"  project(slug:\"spring-framework\") {" +
+				"    releases {" +
+				"      version" +
+				"    }" +
+				"  }" +
+				"}";
+
+		this.client.post().bodyValue(JsonRequest.create(query))
+				.exchange()
+				.expectStatus().isOk()
+				.expectBody().jsonPath("$.data.project.releases[*].version")
+				.value((Consumer<List<String>>) versions -> {
+					assertThat(versions).hasSizeGreaterThan(1);
+				});
+	}
+
+	@Test
+	void jsonContent() {
+		String query = "{" +
+				"  project(slug:\"spring-framework\") {" +
+				"    repositoryUrl" +
+				"  }" +
+				"}";
+
+		String expectedJson = "{" +
+				"  \"data\":{" +
+				"    \"project\":{" +
+				"      \"repositoryUrl\":\"http://github.com/spring-projects/spring-framework\"" +
+				"    }" +
+				"  }" +
+				"}";
+
+		this.client.post().bodyValue(JsonRequest.create(query))
+				.exchange()
+				.expectStatus().isOk()
+				.expectBody().json(expectedJson);
+	}
+
+	@Test
+	void decodedResponse() {
+		String query = "{" +
+				"  project(slug:\"spring-framework\") {" +
+				"    releases {" +
+				"      version" +
+				"    }" +
+				"  }" +
+				"}";
+
+		this.client.post().bodyValue(JsonRequest.create(query))
+				.exchange()
+				.expectStatus().isOk()
+				.expectBody(new ParameterizedTypeReference<JsonResponse<Project>>() {})
+				.consumeWith(exchangeResult -> {
+					Project project = exchangeResult.getResponseBody().getDataEntry();
+					assertThat(project.getReleases()).hasSizeGreaterThan(1);
+				});
+	}
+
+}

samples/webmvc-http/src/test/resources/application.properties

@@ -0,0 +1 @@
+logging.level.org.springframework.web=DEBUG

settings.gradle

@@ -1,5 +1,6 @@
 pluginManagement {
     repositories {
+        maven { url 'https://repo.spring.io/release' }
         maven { url 'https://repo.spring.io/milestone' }
         maven { url 'https://repo.spring.io/snapshot' }
         gradlePluginPortal()