JAVA-4010: Added new module and moved 3 articles to it

spring-web-modules/spring-resttemplate-3/src/test/java/com/baeldung/SpringContextTest.java

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+package com.baeldung;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = { com.baeldung.web.upload.app.UploadApplication.class, })
+public class SpringContextTest {
+
+    @Test
+    public void whenSpringContextIsBootstrapped_thenNoExceptions() {
+    }
+}

spring-web-modules/spring-resttemplate-3/src/test/java/com/baeldung/largefile/LargeFileDownloadIntegrationTest.java

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+package com.baeldung.largefile;
+
+import java.io.File;
+import java.io.FileOutputStream;
+
+import org.assertj.core.api.Assertions;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.util.StreamUtils;
+import org.springframework.web.client.RestTemplate;
+
+public class LargeFileDownloadIntegrationTest {
+
+    static String FILE_URL = "http://ovh.net/files/1Mio.dat";
+
+    RestTemplate restTemplate;
+
+    @Before
+    public void setUp() {
+        restTemplate = new RestTemplate();
+    }
+
+    @Test
+    public void givenResumableUrl_whenUrlCalledByHeadOption_thenExpectHeadersAvailable() {
+        HttpHeaders headers = restTemplate.headForHeaders(FILE_URL);
+        Assertions
+          .assertThat(headers.get("Accept-Ranges"))
+          .contains("bytes");
+        Assertions
+          .assertThat(headers.getContentLength())
+          .isGreaterThan(0);
+    }
+
+    @Test
+    public void givenResumableUrl_whenDownloadCompletely_thenExpectCorrectFileSize() {
+        HttpHeaders headers = restTemplate.headForHeaders(FILE_URL);
+        long contentLength = headers.getContentLength();
+        File file = restTemplate.execute(FILE_URL, HttpMethod.GET, null, clientHttpResponse -> {
+            File ret = File.createTempFile("download", "tmp");
+            StreamUtils.copy(clientHttpResponse.getBody(), new FileOutputStream(ret));
+            return ret;
+        });
+
+        Assert.assertNotNull(file);
+        Assertions
+          .assertThat(file.length())
+          .isEqualTo(contentLength);
+    }
+
+    @Test
+    public void givenResumableUrl_whenDownloadRange_thenExpectFileSizeEqualOrLessThanRange() {
+        int range = 10;
+        File file = restTemplate.execute(FILE_URL, HttpMethod.GET, clientHttpRequest -> clientHttpRequest
+          .getHeaders()
+          .set("Range", String.format("bytes=0-%d", range - 1)), clientHttpResponse -> {
+            File ret = File.createTempFile("download", "tmp");
+            StreamUtils.copy(clientHttpResponse.getBody(), new FileOutputStream(ret));
+            return ret;
+        });
+
+        Assert.assertNotNull(file);
+        Assertions
+          .assertThat(file.length())
+          .isLessThanOrEqualTo(range);
+    }
+
+    @Test
+    public void givenResumableUrl_whenPauseDownloadAndResume_thenExpectCorrectFileSize() {
+
+        int range = 10;
+
+        HttpHeaders headers = restTemplate.headForHeaders(FILE_URL);
+        long contentLength = headers.getContentLength();
+
+        File file = restTemplate.execute(FILE_URL, HttpMethod.GET, clientHttpRequest -> clientHttpRequest
+          .getHeaders()
+          .set("Range", String.format("bytes=0-%d", range - 1)), clientHttpResponse -> {
+            File ret = File.createTempFile("download", "tmp");
+            StreamUtils.copy(clientHttpResponse.getBody(), new FileOutputStream(ret));
+            return ret;
+        });
+
+        Assert.assertNotNull(file);
+
+        Assertions
+          .assertThat(file.length())
+          .isLessThanOrEqualTo(range);
+
+        restTemplate.execute(FILE_URL, HttpMethod.GET, clientHttpRequest -> clientHttpRequest
+          .getHeaders()
+          .set("Range", String.format("bytes=%d-%d", file.length(), contentLength)), clientHttpResponse -> {
+            StreamUtils.copy(clientHttpResponse.getBody(), new FileOutputStream(file, true));
+            return file;
+        });
+
+        Assertions
+          .assertThat(file.length())
+          .isEqualTo(contentLength);
+
+    }
+
+}

spring-web-modules/spring-resttemplate-3/src/test/resources/.gitignore

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+*.class
+
+#folders#
+/target
+/neoDb*
+/data
+/src/main/webapp/WEB-INF/classes
+*/META-INF/*
+
+# Packaged files #
+*.jar
+*.war
+*.ear

spring-web-modules/spring-resttemplate-3/src/test/resources/logback-test.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
+            </pattern>
+        </encoder>
+    </appender>
+    
+    <logger name="org.springframework.web.filter.CommonsRequestLoggingFilter">
+		<level value="DEBUG" />
+	</logger>
+
+    <logger name="org.springframework" level="WARN" />
+    <logger name="org.springframework.transaction" level="WARN" />
+
+    <!-- in order to debug some marshalling issues, this needs to be TRACE -->
+    <logger name="org.springframework.web.servlet.mvc" level="WARN" />
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>