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bug 58779: check if SlideShowFactory.create() modifies the file being read when the slideshow is closed. 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1722707 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Javen O'Neal 2016-01-03 09:16:59 +00:00
parent 2baddb8b8d
commit c67f36cfee
3 changed files with 108 additions and 15 deletions
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22
src/ooxml/testcases/org/apache/poi/xslf/usermodel/TestXSLFSlideShowFactory.java
View File

@ -33,14 +33,29 @@ import org.apache.poi.sl.usermodel.BaseTestSlideShowFactory;
import org.apache.poi.util.IOUtils;
import org.apache.poi.util.TempFile;
import org.junit.Test;
import org.junit.Rule;
import org.junit.rules.ExpectedException;
public final class TestXSLFSlideShowFactory extends BaseTestSlideShowFactory {
private static POIDataSamples _slTests = POIDataSamples.getSlideShowInstance();
private static final String filename = "SampleShow.pptx";
private static final String password = "opensesame";
private static final String removeExpectedExceptionMsg =
"This functionality this unit test is trying to test is now passing. " +
"The unit test needs to be updated by deleting the expected exception code. Status and close any related bugs.";
@Rule
public ExpectedException thrown = ExpectedException.none();
@Test
public void testFactoryFromFile() throws Exception {
// Remove thrown.* when bug 58779 is resolved
// In the mean time, this function will modify SampleShow.pptx on disk.
thrown.expect(AssertionError.class);
// thrown.expectCause(Matcher<ArrayComparisonFailure>);
thrown.expectMessage("SampleShow.pptx sample file was modified as a result of closing the slideshow");
thrown.reportMissingExceptionWithMessage("Bug 58779: " + removeExpectedExceptionMsg);
testFactoryFromFile(filename);
}
@ -51,6 +66,11 @@ public final class TestXSLFSlideShowFactory extends BaseTestSlideShowFactory {
@Test
public void testFactoryFromNative() throws Exception {
// Remove thrown.* when unit test for XSLF SlideShowFactory.create(OPCPackage) is implemented
thrown.expect(UnsupportedOperationException.class);
thrown.expectMessage("Test not implemented");
thrown.reportMissingExceptionWithMessage(removeExpectedExceptionMsg);
testFactoryFromNative(filename);
}
@ -88,7 +108,7 @@ public final class TestXSLFSlideShowFactory extends BaseTestSlideShowFactory {
os.close();
fis.close();
File tf = TempFile.createTempFile("test-xslf-slidefactory", "pptx");
File tf = TempFile.createTempFile("test-xslf-slidefactory", ".pptx");
FileOutputStream fos = new FileOutputStream(tf);
fs.writeFilesystem(fos);
fos.close();

2
src/testcases/org/apache/poi/POIDataSamples.java
View File

@ -255,7 +255,7 @@ public final class POIDataSamples {
/**
* @param fileName the file to open
* @return byte array of sample file content from file found in standard hssf test data dir
* @return byte array of sample file content from file found in standard test-data directory
*/
public byte[] readFile(String fileName) {
ByteArrayOutputStream bos = new ByteArrayOutputStream();

89
src/testcases/org/apache/poi/sl/usermodel/BaseTestSlideShowFactory.java
View File

@ -17,25 +17,32 @@
package org.apache.poi.sl.usermodel;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.fail;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ByteArrayOutputStream;
import org.apache.poi.POIDataSamples;
import org.apache.poi.poifs.filesystem.NPOIFSFileSystem;
import org.apache.poi.util.POILogFactory;
import org.apache.poi.util.POILogger;
public class BaseTestSlideShowFactory {
private static POIDataSamples _slTests = POIDataSamples.getSlideShowInstance();
private static final POIDataSamples _slTests = POIDataSamples.getSlideShowInstance();
private static final POILogger LOGGER = POILogFactory.getLogger(BaseTestSlideShowFactory.class);
protected static void testFactoryFromFile(String file) throws Exception {
SlideShow<?,?> ss;
// from file
ss = SlideShowFactory.create(fromFile(file));
assertNotNull(ss);
ss.close();
assertCloseDoesNotModifyFile(file, ss);
}
protected static void testFactoryFromStream(String file) throws Exception {
@ -43,18 +50,26 @@ public class BaseTestSlideShowFactory {
// from stream
ss = SlideShowFactory.create(fromStream(file));
assertNotNull(ss);
ss.close();
assertCloseDoesNotModifyFile(file, ss);
}
protected static void testFactoryFromNative(String file) throws Exception {
SlideShow<?,?> ss;
// from NPOIFS
if (!file.contains("pptx")) {
if (file.endsWith(".ppt")) {
NPOIFSFileSystem npoifs = new NPOIFSFileSystem(fromFile(file));
ss = SlideShowFactory.create(npoifs);
assertNotNull(ss);
npoifs.close();
ss.close();
assertCloseDoesNotModifyFile(file, ss);
}
// from OPCPackage
else if (file.endsWith(".pptx")) {
// not implemented
throw new UnsupportedOperationException("Test not implemented");
}
else {
fail("Unexpected file extension: " + file);
}
}
@ -63,7 +78,7 @@ public class BaseTestSlideShowFactory {
// from protected file
ss = SlideShowFactory.create(fromFile(protectedFile), password);
assertNotNull(ss);
ss.close();
assertCloseDoesNotModifyFile(protectedFile, ss);
}
protected static void testFactoryFromProtectedStream(String protectedFile, String password) throws Exception {
@ -71,17 +86,25 @@ public class BaseTestSlideShowFactory {
// from protected stream
ss = SlideShowFactory.create(fromStream(protectedFile), password);
assertNotNull(ss);
ss.close();
assertCloseDoesNotModifyFile(protectedFile, ss);
}
protected static void testFactoryFromProtectedNative(String protectedFile, String password) throws Exception {
SlideShow<?,?> ss;
// Encryption layer is a BIFF8 binary format that can be read by NPOIFSFileSystem,
// used for both HSLF and XSLF
// from protected NPOIFS
if (protectedFile.endsWith(".ppt") || protectedFile.endsWith(".pptx")) {
NPOIFSFileSystem npoifs = new NPOIFSFileSystem(fromFile(protectedFile));
ss = SlideShowFactory.create(npoifs, password);
assertNotNull(ss);
npoifs.close();
ss.close();
assertCloseDoesNotModifyFile(protectedFile, ss);
}
else {
fail("Unrecognized file extension: " + protectedFile);
}
}
public static void testFactory(String file, String protectedFile, String password)
@ -95,6 +118,56 @@ public class BaseTestSlideShowFactory {
testFactoryFromProtectedNative(protectedFile, password);
}
/**
* reads either a test-data file (filename) or a file outside the test-data folder (full path)
*/
private static byte[] readFile(String filename) {
byte[] bytes;
try {
bytes = _slTests.readFile(filename);
} catch (final Exception e) {
bytes = readExternalFile(filename);
}
return bytes;
}
private static byte[] readExternalFile(String path) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try {
InputStream fis = new FileInputStream(path);
byte[] buf = new byte[512];
while (true) {
int bytesRead = fis.read(buf);
if (bytesRead < 1) {
break;
}
baos.write(buf, 0, bytesRead);
}
fis.close();
} catch (final IOException e) {
throw new RuntimeException(e);
}
final byte[] bytes = baos.toByteArray();
return bytes;
}
/**
* FIXME:
* bug 58779: Closing an XMLSlideShow that was created with {@link SlideShowFactory#create(File)} modifies the file
*
* @param filename the sample filename or full path of the slideshow to check before and after closing
* @param ss the slideshow to close or revert
* @throws IOException
*/
private static void assertCloseDoesNotModifyFile(String filename, SlideShow<?,?> ss) throws IOException {
final byte[] before = readFile(filename);
ss.close();
final byte[] after = readFile(filename);
assertArrayEquals(filename + " sample file was modified as a result of closing the slideshow",
before, after);
}
private static File fromFile(String file) {
return (file.contains("/") || file.contains("\\"))
? new File(file)