From: Nick Burch Date: Sat, 26 Apr 2014 21:33:19 +0000 (+0000) Subject: Stream tests for NDocumentOutputStream X-Git-Tag: REL_3_11_BETA1~159 X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=ca16bb9403c166a678daaf25cea593c2c8fbcfd2;p=poi.git Stream tests for NDocumentOutputStream git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1590303 13f79535-47bb-0310-9956-ffa450edef68 --- diff --git a/src/testcases/org/apache/poi/poifs/filesystem/TestNPOIFSStream.java b/src/testcases/org/apache/poi/poifs/filesystem/TestNPOIFSStream.java index 40c1cc516d..7ee10a1910 100644 --- a/src/testcases/org/apache/poi/poifs/filesystem/TestNPOIFSStream.java +++ b/src/testcases/org/apache/poi/poifs/filesystem/TestNPOIFSStream.java @@ -17,6 +17,9 @@ package org.apache.poi.poifs.filesystem; +import static org.apache.poi.poifs.filesystem.TestNPOIFSFileSystem.writeOutAndReadBack; + +import java.io.ByteArrayInputStream; import java.nio.ByteBuffer; import java.util.Iterator; @@ -29,6 +32,7 @@ import org.apache.poi.poifs.storage.BATBlock; /** * Tests {@link NPOIFSStream} */ +@SuppressWarnings("resource") public final class TestNPOIFSStream extends TestCase { private static final POIDataSamples _inst = POIDataSamples.getPOIFSInstance(); @@ -886,4 +890,194 @@ public final class TestNPOIFSStream extends TestCase { assertEquals(false, it.hasNext()); } + + /** + * Writes a stream, then replaces it + */ + public void testWriteThenReplace() throws Exception { + NPOIFSFileSystem fs = new NPOIFSFileSystem(); + + // Starts empty + BATBlock bat = fs.getBATBlockAndIndex(0).getBlock(); + assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, bat.getValueAt(0)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(1)); + assertEquals(POIFSConstants.UNUSED_BLOCK, bat.getValueAt(2)); + + // Write something that uses a main stream + byte[] main4106 = new byte[4106]; + main4106[0] = -10; + main4106[4105] = -11; + DocumentEntry normal = fs.getRoot().createDocument( + "Normal", new ByteArrayInputStream(main4106)); + + // Should have used 9 blocks + assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, bat.getValueAt(0)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(1)); + assertEquals(3, bat.getValueAt(2)); + assertEquals(4, bat.getValueAt(3)); + assertEquals(5, bat.getValueAt(4)); + assertEquals(6, bat.getValueAt(5)); + assertEquals(7, bat.getValueAt(6)); + assertEquals(8, bat.getValueAt(7)); + assertEquals(9, bat.getValueAt(8)); + assertEquals(10, bat.getValueAt(9)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(10)); + assertEquals(POIFSConstants.UNUSED_BLOCK, bat.getValueAt(11)); + + normal = (DocumentEntry)fs.getRoot().getEntry("Normal"); + assertEquals(4106, normal.getSize()); + assertEquals(4106, ((DocumentNode)normal).getProperty().getSize()); + + + // Replace with one still big enough for a main stream, but one block smaller + byte[] main4096 = new byte[4096]; + main4096[0] = -10; + main4096[4095] = -11; + + NDocumentOutputStream nout = new NDocumentOutputStream(normal); + nout.write(main4096); + nout.close(); + + // Will have dropped to 8 + assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, bat.getValueAt(0)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(1)); + assertEquals(3, bat.getValueAt(2)); + assertEquals(4, bat.getValueAt(3)); + assertEquals(5, bat.getValueAt(4)); + assertEquals(6, bat.getValueAt(5)); + assertEquals(7, bat.getValueAt(6)); + assertEquals(8, bat.getValueAt(7)); + assertEquals(9, bat.getValueAt(8)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(9)); + assertEquals(POIFSConstants.UNUSED_BLOCK, bat.getValueAt(10)); + assertEquals(POIFSConstants.UNUSED_BLOCK, bat.getValueAt(11)); + + normal = (DocumentEntry)fs.getRoot().getEntry("Normal"); + assertEquals(4096, normal.getSize()); + assertEquals(4096, ((DocumentNode)normal).getProperty().getSize()); + + + // Write and check + fs = writeOutAndReadBack(fs); + bat = fs.getBATBlockAndIndex(0).getBlock(); + + // Will have properties, but otherwise the same + assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, bat.getValueAt(0)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(1)); + assertEquals(3, bat.getValueAt(2)); + assertEquals(4, bat.getValueAt(3)); + assertEquals(5, bat.getValueAt(4)); + assertEquals(6, bat.getValueAt(5)); + assertEquals(7, bat.getValueAt(6)); + assertEquals(8, bat.getValueAt(7)); + assertEquals(9, bat.getValueAt(8)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(9)); // End of Normal + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(10)); // Props + assertEquals(POIFSConstants.UNUSED_BLOCK, bat.getValueAt(11)); + + normal = (DocumentEntry)fs.getRoot().getEntry("Normal"); + assertEquals(4096, normal.getSize()); + assertEquals(4096, ((DocumentNode)normal).getProperty().getSize()); + + + // Make longer, take 1 block after the properties too + normal = (DocumentEntry)fs.getRoot().getEntry("Normal"); + nout = new NDocumentOutputStream(normal); + nout.write(main4106); + nout.close(); + + assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, bat.getValueAt(0)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(1)); + assertEquals(3, bat.getValueAt(2)); + assertEquals(4, bat.getValueAt(3)); + assertEquals(5, bat.getValueAt(4)); + assertEquals(6, bat.getValueAt(5)); + assertEquals(7, bat.getValueAt(6)); + assertEquals(8, bat.getValueAt(7)); + assertEquals(9, bat.getValueAt(8)); + assertEquals(11, bat.getValueAt(9)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(10)); // Props + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(11)); // Normal + assertEquals(POIFSConstants.UNUSED_BLOCK, bat.getValueAt(12)); + + normal = (DocumentEntry)fs.getRoot().getEntry("Normal"); + assertEquals(4106, normal.getSize()); + assertEquals(4106, ((DocumentNode)normal).getProperty().getSize()); + + + // Make it small, will trigger the SBAT stream and free lots up + byte[] mini = new byte[] { 42, 0, 1, 2, 3, 4, 42 }; + normal = (DocumentEntry)fs.getRoot().getEntry("Normal"); + nout = new NDocumentOutputStream(normal); + nout.write(mini); + nout.close(); + + assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, bat.getValueAt(0)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(1)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(2)); // SBAT + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(3)); // Mini Stream + assertEquals(POIFSConstants.UNUSED_BLOCK, bat.getValueAt(4)); + assertEquals(POIFSConstants.UNUSED_BLOCK, bat.getValueAt(5)); + assertEquals(POIFSConstants.UNUSED_BLOCK, bat.getValueAt(6)); + assertEquals(POIFSConstants.UNUSED_BLOCK, bat.getValueAt(7)); + assertEquals(POIFSConstants.UNUSED_BLOCK, bat.getValueAt(8)); + assertEquals(POIFSConstants.UNUSED_BLOCK, bat.getValueAt(9)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(10)); // Props + assertEquals(POIFSConstants.UNUSED_BLOCK, bat.getValueAt(11)); + assertEquals(POIFSConstants.UNUSED_BLOCK, bat.getValueAt(12)); + + normal = (DocumentEntry)fs.getRoot().getEntry("Normal"); + assertEquals(7, normal.getSize()); + assertEquals(7, ((DocumentNode)normal).getProperty().getSize()); + + + // Finally back to big again + nout = new NDocumentOutputStream(normal); + nout.write(main4096); + nout.close(); + + // Will keep the mini stream, now empty + assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, bat.getValueAt(0)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(1)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(2)); // SBAT + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(3)); // Mini Stream + assertEquals(5, bat.getValueAt(4)); + assertEquals(6, bat.getValueAt(5)); + assertEquals(7, bat.getValueAt(6)); + assertEquals(8, bat.getValueAt(7)); + assertEquals(9, bat.getValueAt(8)); + assertEquals(11, bat.getValueAt(9)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(10)); // Props + assertEquals(12, bat.getValueAt(11)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(12)); + assertEquals(POIFSConstants.UNUSED_BLOCK, bat.getValueAt(13)); + + normal = (DocumentEntry)fs.getRoot().getEntry("Normal"); + assertEquals(4096, normal.getSize()); + assertEquals(4096, ((DocumentNode)normal).getProperty().getSize()); + + + // Save, re-load, re-check + fs = writeOutAndReadBack(fs); + bat = fs.getBATBlockAndIndex(0).getBlock(); + + assertEquals(POIFSConstants.FAT_SECTOR_BLOCK, bat.getValueAt(0)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(1)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(2)); // SBAT + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(3)); // Mini Stream + assertEquals(5, bat.getValueAt(4)); + assertEquals(6, bat.getValueAt(5)); + assertEquals(7, bat.getValueAt(6)); + assertEquals(8, bat.getValueAt(7)); + assertEquals(9, bat.getValueAt(8)); + assertEquals(11, bat.getValueAt(9)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(10)); // Props + assertEquals(12, bat.getValueAt(11)); + assertEquals(POIFSConstants.END_OF_CHAIN, bat.getValueAt(12)); + assertEquals(POIFSConstants.UNUSED_BLOCK, bat.getValueAt(13)); + + normal = (DocumentEntry)fs.getRoot().getEntry("Normal"); + assertEquals(4096, normal.getSize()); + assertEquals(4096, ((DocumentNode)normal).getProperty().getSize()); + } }