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LUCENE-5067: add more tests 

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1587625 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Robert Muir 2014-04-15 16:12:12 +00:00
parent 80f00226e7
commit 3944b1294a
2 changed files with 281 additions and 38 deletions
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30
lucene/core/src/test/org/apache/lucene/store/TestDirectory.java
View File

@ -164,35 +164,5 @@ public class TestDirectory extends BaseDirectoryTestCase {
TestUtil.rm(path);
}
}
public void testFsyncDoesntCreateNewFiles() throws Exception {
File path = createTempDir("nocreate");
System.out.println(path.getAbsolutePath());
Directory fsdir = new SimpleFSDirectory(path);
// write a file
IndexOutput out = fsdir.createOutput("afile", newIOContext(random()));
out.writeString("boo");
out.close();
// delete it
assertTrue(new File(path, "afile").delete());
// directory is empty
assertEquals(0, fsdir.listAll().length);
// fsync it
try {
fsdir.sync(Collections.singleton("afile"));
fail("didn't get expected exception, instead fsync created new files: " + Arrays.asList(fsdir.listAll()));
} catch (FileNotFoundException | NoSuchFileException expected) {
// ok
}
// directory is still empty
assertEquals(0, fsdir.listAll().length);
fsdir.close();
}
}

289
lucene/test-framework/src/java/org/apache/lucene/store/BaseDirectoryTestCase.java
View File

@ -23,9 +23,13 @@ import java.io.IOException;
import java.nio.file.NoSuchFileException;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.zip.CRC32;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexNotFoundException;
import org.apache.lucene.util.IOUtils;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.lucene.util.TestUtil;
@ -37,7 +41,245 @@ public abstract class BaseDirectoryTestCase extends LuceneTestCase {
* an FS-based directory it should point to the specified
* path, else it can ignore it. */
protected abstract Directory getDirectory(File path) throws IOException;
// first some basic tests for the directory api
public void testCopy() throws Exception {
Directory source = getDirectory(createTempDir("testCopy"));
Directory dest = newDirectory();
IndexOutput output = source.createOutput("foobar", newIOContext(random()));
int numBytes = random().nextInt(20000);
byte bytes[] = new byte[numBytes];
random().nextBytes(bytes);
output.writeBytes(bytes, bytes.length);
output.close();
source.copy(dest, "foobar", "foobaz", newIOContext(random()));
assertTrue(slowFileExists(dest, "foobaz"));
IndexInput input = dest.openInput("foobaz", newIOContext(random()));
byte bytes2[] = new byte[numBytes];
input.readBytes(bytes2, 0, bytes2.length);
assertEquals(input.length(), numBytes);
input.close();
assertArrayEquals(bytes, bytes2);
IOUtils.close(source, dest);
}
public void testCopyDestination() throws Exception {
Directory source = newDirectory();
Directory dest = getDirectory(createTempDir("testCopyDestination"));
IndexOutput output = source.createOutput("foobar", newIOContext(random()));
int numBytes = random().nextInt(20000);
byte bytes[] = new byte[numBytes];
random().nextBytes(bytes);
output.writeBytes(bytes, bytes.length);
output.close();
source.copy(dest, "foobar", "foobaz", newIOContext(random()));
assertTrue(slowFileExists(dest, "foobaz"));
IndexInput input = dest.openInput("foobaz", newIOContext(random()));
byte bytes2[] = new byte[numBytes];
input.readBytes(bytes2, 0, bytes2.length);
assertEquals(input.length(), numBytes);
input.close();
assertArrayEquals(bytes, bytes2);
IOUtils.close(source, dest);
}
// TODO: are these semantics really needed by lucene? can we just throw exception?
public void testCopyOverwrite() throws Exception {
Directory source = getDirectory(createTempDir("testCopyOverwrite"));
Directory dest = newDirectory();
// we are double-writing intentionally, because thats the api
if (dest instanceof MockDirectoryWrapper) {
((MockDirectoryWrapper) dest).setPreventDoubleWrite(false);
}
IndexOutput output = source.createOutput("foobar", newIOContext(random()));
int numBytes = random().nextInt(20000);
byte bytes[] = new byte[numBytes];
random().nextBytes(bytes);
output.writeBytes(bytes, bytes.length);
output.close();
// create foobaz first, it should be overwritten
IndexOutput output2 = dest.createOutput("foobaz", newIOContext(random()));
output2.writeString("bogus!");
output2.close();
source.copy(dest, "foobar", "foobaz", newIOContext(random()));
assertTrue(slowFileExists(dest, "foobaz"));
IndexInput input = dest.openInput("foobaz", newIOContext(random()));
byte bytes2[] = new byte[numBytes];
input.readBytes(bytes2, 0, bytes2.length);
assertEquals(input.length(), numBytes);
input.close();
assertArrayEquals(bytes, bytes2);
IOUtils.close(source, dest);
}
public void testDeleteFile() throws Exception {
Directory dir = getDirectory(createTempDir("testDeleteFile"));
dir.createOutput("foo.txt", IOContext.DEFAULT).close();
dir.deleteFile("foo.txt");
assertEquals(0, dir.listAll().length);
dir.close();
}
public void testByte() throws Exception {
Directory dir = getDirectory(createTempDir("testByte"));
IndexOutput output = dir.createOutput("byte", newIOContext(random()));
output.writeByte((byte)128);
output.close();
IndexInput input = dir.openInput("byte", newIOContext(random()));
assertEquals(1, input.length());
assertEquals((byte)128, input.readByte());
input.close();
dir.close();
}
public void testShort() throws Exception {
Directory dir = getDirectory(createTempDir("testShort"));
IndexOutput output = dir.createOutput("short", newIOContext(random()));
output.writeShort((short)-20);
output.close();
IndexInput input = dir.openInput("short", newIOContext(random()));
assertEquals(2, input.length());
assertEquals((short)-20, input.readShort());
input.close();
dir.close();
}
public void testInt() throws Exception {
Directory dir = getDirectory(createTempDir("testInt"));
IndexOutput output = dir.createOutput("int", newIOContext(random()));
output.writeInt(-500);
output.close();
IndexInput input = dir.openInput("int", newIOContext(random()));
assertEquals(4, input.length());
assertEquals(-500, input.readInt());
input.close();
dir.close();
}
public void testLong() throws Exception {
Directory dir = getDirectory(createTempDir("testLong"));
IndexOutput output = dir.createOutput("long", newIOContext(random()));
output.writeLong(-5000);
output.close();
IndexInput input = dir.openInput("long", newIOContext(random()));
assertEquals(8, input.length());
assertEquals(-5000L, input.readLong());
input.close();
dir.close();
}
public void testString() throws Exception {
Directory dir = getDirectory(createTempDir("testString"));
IndexOutput output = dir.createOutput("string", newIOContext(random()));
output.writeString("hello!");
output.close();
IndexInput input = dir.openInput("string", newIOContext(random()));
assertEquals("hello!", input.readString());
assertEquals(7, input.length());
input.close();
dir.close();
}
public void testVInt() throws Exception {
Directory dir = getDirectory(createTempDir("testVInt"));
IndexOutput output = dir.createOutput("vint", newIOContext(random()));
output.writeVInt(500);
output.close();
IndexInput input = dir.openInput("vint", newIOContext(random()));
assertEquals(2, input.length());
assertEquals(500, input.readVInt());
input.close();
dir.close();
}
public void testVLong() throws Exception {
Directory dir = getDirectory(createTempDir("testVLong"));
IndexOutput output = dir.createOutput("vlong", newIOContext(random()));
output.writeVLong(Long.MAX_VALUE);
output.close();
IndexInput input = dir.openInput("vlong", newIOContext(random()));
assertEquals(9, input.length());
assertEquals(Long.MAX_VALUE, input.readVLong());
input.close();
dir.close();
}
public void testStringSet() throws Exception {
Directory dir = getDirectory(createTempDir("testStringSet"));
IndexOutput output = dir.createOutput("stringset", newIOContext(random()));
output.writeStringSet(asSet("test1", "test2"));
output.close();
IndexInput input = dir.openInput("stringset", newIOContext(random()));
assertEquals(16, input.length());
assertEquals(asSet("test1", "test2"), input.readStringSet());
input.close();
dir.close();
}
public void testStringMap() throws Exception {
Map<String,String> m = new HashMap<>();
m.put("test1", "value1");
m.put("test2", "value2");
Directory dir = getDirectory(createTempDir("testStringMap"));
IndexOutput output = dir.createOutput("stringmap", newIOContext(random()));
output.writeStringStringMap(m);
output.close();
IndexInput input = dir.openInput("stringmap", newIOContext(random()));
assertEquals(30, input.length());
assertEquals(m, input.readStringStringMap());
input.close();
dir.close();
}
// TODO: fold in some of the testing of o.a.l.index.TestIndexInput in here!
public void testChecksum() throws Exception {
CRC32 expected = new CRC32();
int numBytes = random().nextInt(20000);
byte bytes[] = new byte[numBytes];
random().nextBytes(bytes);
expected.update(bytes);
Directory dir = getDirectory(createTempDir("testChecksum"));
IndexOutput output = dir.createOutput("checksum", newIOContext(random()));
output.writeBytes(bytes, 0, bytes.length);
output.close();
ChecksumIndexInput input = dir.openChecksumInput("checksum", newIOContext(random()));
input.skipBytes(numBytes);
assertEquals(expected.getValue(), input.getChecksum());
input.close();
dir.close();
}
/** Make sure directory throws AlreadyClosedException if
* you try to createOutput after closing. */
public void testDetectClose() throws Throwable {
@ -197,14 +439,6 @@ public abstract class BaseDirectoryTestCase extends LuceneTestCase {
dir.close();
}
public void testDeleteFile() throws Exception {
Directory dir = getDirectory(createTempDir("testDeleteFile"));
dir.createOutput("foo.txt", IOContext.DEFAULT).close();
dir.deleteFile("foo.txt");
assertEquals(0, dir.listAll().length);
dir.close();
}
// LUCENE-3382 -- make sure we get exception if the directory really does not exist.
public void testNoDir() throws Throwable {
File tempDir = createTempDir("doesnotexist");
@ -395,5 +629,44 @@ public abstract class BaseDirectoryTestCase extends LuceneTestCase {
}
}
}
// this test backdoors the directory via the filesystem. so it must actually use the filesystem
// TODO: somehow change this test to
public void testFsyncDoesntCreateNewFiles() throws Exception {
File path = createTempDir("nocreate");
Directory fsdir = getDirectory(path);
// this test backdoors the directory via the filesystem. so it must be an FSDir (for now)
// TODO: figure a way to test this better/clean it up. E.g. we should be testing for FileSwitchDir,
// if its using two FSdirs and so on
if (fsdir instanceof FSDirectory == false) {
fsdir.close();
assumeTrue("test only works for FSDirectory subclasses", false);
}
// write a file
IndexOutput out = fsdir.createOutput("afile", newIOContext(random()));
out.writeString("boo");
out.close();
// delete it
assertTrue(new File(path, "afile").delete());
// directory is empty
assertEquals(0, fsdir.listAll().length);
// fsync it
try {
fsdir.sync(Collections.singleton("afile"));
fail("didn't get expected exception, instead fsync created new files: " + Arrays.asList(fsdir.listAll()));
} catch (FileNotFoundException | NoSuchFileException expected) {
// ok
}
// directory is still empty
assertEquals(0, fsdir.listAll().length);
fsdir.close();
}
}