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StreamUtils.emptyInput() for consistent empty InputStream exposure

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Issue: SPR-13563
This commit is contained in:
Juergen Hoeller
2015-10-12 22:25:40 +02:00
parent 6256586047
commit 66177dfd8c
9 changed files with 36 additions and 31 deletions
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4
spring-web/src/test/java/org/springframework/mock/web/test/MockHttpServletRequest.java
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@@ -39,7 +39,6 @@ import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.TimeZone;
import javax.servlet.AsyncContext;
import javax.servlet.DispatcherType;
import javax.servlet.RequestDispatcher;
@@ -59,6 +58,7 @@ import org.springframework.util.Assert;
import org.springframework.util.LinkedCaseInsensitiveMap;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;
import org.springframework.util.StreamUtils;
import org.springframework.util.StringUtils;
/**
@@ -122,7 +122,7 @@ public class MockHttpServletRequest implements HttpServletRequest {
private static final String CHARSET_PREFIX = "charset=";
private static final ServletInputStream EMPTY_SERVLET_INPUT_STREAM =
new DelegatingServletInputStream(new ByteArrayInputStream(new byte[0]));
new DelegatingServletInputStream(StreamUtils.emptyInput());
/**
* Date formats as specified in the HTTP RFC

21
spring-web/src/test/java/org/springframework/web/filter/ShallowEtagHeaderFilterTests.java
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@@ -16,16 +16,15 @@
package org.springframework.web.filter;
import java.io.ByteArrayInputStream;
import javax.servlet.FilterChain;
import javax.servlet.http.HttpServletResponse;
import org.junit.Before;
import org.junit.Test;
import org.springframework.mock.web.test.MockHttpServletRequest;
import org.springframework.mock.web.test.MockHttpServletResponse;
import org.springframework.util.FileCopyUtils;
import org.springframework.util.StreamUtils;
import static org.junit.Assert.*;
@@ -36,27 +35,23 @@ import static org.junit.Assert.*;
*/
public class ShallowEtagHeaderFilterTests {
private ShallowEtagHeaderFilter filter;
private final ShallowEtagHeaderFilter filter = new ShallowEtagHeaderFilter();
@Before
public void createFilter() throws Exception {
filter = new ShallowEtagHeaderFilter();
}
@Test
public void isEligibleForEtag() {
MockHttpServletRequest request = new MockHttpServletRequest("GET", "/hotels");
MockHttpServletResponse response = new MockHttpServletResponse();
assertTrue(filter.isEligibleForEtag(request, response, 200, new ByteArrayInputStream(new byte[0])));
assertFalse(filter.isEligibleForEtag(request, response, 300, new ByteArrayInputStream(new byte[0])));
assertTrue(filter.isEligibleForEtag(request, response, 200, StreamUtils.emptyInput()));
assertFalse(filter.isEligibleForEtag(request, response, 300, StreamUtils.emptyInput()));
request = new MockHttpServletRequest("POST", "/hotels");
assertFalse(filter.isEligibleForEtag(request, response, 200, new ByteArrayInputStream(new byte[0])));
assertFalse(filter.isEligibleForEtag(request, response, 200, StreamUtils.emptyInput()));
request = new MockHttpServletRequest("POST", "/hotels");
request.addHeader("Cache-Control","must-revalidate, no-store");
assertFalse(filter.isEligibleForEtag(request, response, 200, new ByteArrayInputStream(new byte[0])));
assertFalse(filter.isEligibleForEtag(request, response, 200, StreamUtils.emptyInput()));
}
@Test
@@ -120,9 +115,7 @@ public class ShallowEtagHeaderFilterTests {
assertArrayEquals("Invalid content", new byte[0], response.getContentAsByteArray());
}
// SPR-12960
@Test
@Test // SPR-12960
public void filterWriterWithDisabledCaching() throws Exception {
final MockHttpServletRequest request = new MockHttpServletRequest("GET", "/hotels");
MockHttpServletResponse response = new MockHttpServletResponse();