@Test
@Category(UnitTest.class)
public void readSplitsPath() throws IOException {
File splitFolder = folder.newFolder(testName.getMethodName());
File splitfile = new File(splitFolder, "partitions");
FileOutputStream stream = new FileOutputStream(splitfile);
PrintWriter writer = new PrintWriter(stream);
writer.println(generated.length);
for (int i = 0; i < generated.length; i++) {
writer.print(generated[i]);
writer.print(" ");
writer.println(i);
}
writer.close();
stream.close();
Splits splits = new PartitionerSplit();
splits.readSplits(new Path(splitFolder.toURI()));
PartitionerSplit.PartitionerSplitInfo[] si =
(PartitionerSplit.PartitionerSplitInfo[]) splits.getSplits();
Assert.assertEquals("Splits length not correct", generated.length, si.length);
for (int i = 0; i < generated.length; i++) {
Assert.assertEquals("Splits entry not correct", generated[i].longValue(), si[i].getTileId());
}
}
@Test
@Category(UnitTest.class)
public void writeSplitsPath() throws IOException {
Splits splits = new PartitionerSplit();
splits.generateSplits(new TestGenerator());
File splitfile = folder.newFolder(testName.getMethodName());
splits.writeSplits(new Path(splitfile.toURI()));
FileInputStream in = new FileInputStream(new File(splitfile, "partitions"));
Scanner reader = new Scanner(in);
Assert.assertEquals("Wrong number written", generated.length, reader.nextInt());
PartitionerSplit.PartitionerSplitInfo[] si =
(PartitionerSplit.PartitionerSplitInfo[]) splits.getSplits();
for (int i = 0; i < generated.length; i++) {
Assert.assertEquals("Splits entry not correct", generated[i].longValue(), reader.nextLong());
Assert.assertEquals("Partition entry not correct", i, reader.nextLong());
}
reader.close();
}
@Test
@Category(UnitTest.class)
public void getSplitIndexHigh() throws Splits.SplitException {
Splits splits = new PartitionerSplit();
splits.generateSplits(new TestGenerator());
Assert.assertEquals(splits.length() - 1, splits.getSplitIndex(1000));
}
@Test
@Category(UnitTest.class)
public void getLength() {
Splits splits = new PartitionerSplit();
splits.generateSplits(new TestGenerator());
Assert.assertEquals("Splits length not correct", generated.length, splits.length());
}
@Test(expected = Splits.SplitException.class)
@Category(UnitTest.class)
public void getSplitHigh() throws Splits.SplitException {
Splits splits = new PartitionerSplit();
splits.generateSplits(new TestGenerator());
splits.getSplit(1000);
}
@Test
@Category(UnitTest.class)
public void getSplitsNoGenerate() {
Splits splits = new PartitionerSplit();
PartitionerSplit.PartitionerSplitInfo[] si =
(PartitionerSplit.PartitionerSplitInfo[]) splits.getSplits();
Assert.assertNull("Splits not null", si);
}
@Test
@Category(UnitTest.class)
public void getSplitLow() throws Splits.SplitException {
Splits splits = new PartitionerSplit();
splits.generateSplits(new TestGenerator());
PartitionerSplit.PartitionerSplitInfo split =
(PartitionerSplit.PartitionerSplitInfo) splits.getSplit(0);
Assert.assertEquals("Splits entry not correct", 0, split.getPartition());
}
@Test
@Category(UnitTest.class)
public void generateSplits() {
Splits splits = new PartitionerSplit();
splits.generateSplits(new TestGenerator());
PartitionerSplit.PartitionerSplitInfo[] si =
(PartitionerSplit.PartitionerSplitInfo[]) splits.getSplits();
Assert.assertEquals("Splits length not correct", generated.length, si.length);
for (int i = 0; i < generated.length; i++) {
Assert.assertEquals("Splits entry not correct", generated[i].longValue(), si[i].getTileId());
}
}
@Test
@Category(UnitTest.class)
public void getSplit() throws Splits.SplitException {
Splits splits = new PartitionerSplit();
splits.generateSplits(new TestGenerator());
Random rand = new Random();
for (int i = 0; i < 1000; i++) {
long test = rand.nextInt(generated[generated.length - 1].intValue());
long testPartition = findSplit(generated, test);
PartitionerSplit.PartitionerSplitInfo split =
(PartitionerSplit.PartitionerSplitInfo) splits.getSplit(test);
Assert.assertEquals("Splits entry not correct", testPartition, split.getPartition());
}
}
@Test(expected = Splits.SplitException.class)
@Category(UnitTest.class)
public void getSplitNotGenerated() throws Splits.SplitException {
Splits splits = new PartitionerSplit();
splits.getSplit(10);
}