chamikaramj commented on a change in pull request #4149: [BEAM-3060] Add
Compressed TextIOIT
URL: https://github.com/apache/beam/pull/4149#discussion_r152900718
##########
File path:
sdks/java/io/file-based-io-tests/src/test/java/org/apache/beam/sdk/io/text/TextIOIT.java
##########
@@ -83,25 +90,82 @@ private static String appendTimestamp(String
filenamePrefix) {
return String.format("%s_%s", filenamePrefix, new Date().getTime());
}
- @Test
- public void writeThenReadAll() {
- PCollection<String> testFilenames = pipeline
- .apply("Generate sequence",
GenerateSequence.from(0).to(numberOfTextLines))
- .apply("Produce text lines", ParDo.of(new
DeterministicallyConstructTestTextLineFn()))
- .apply("Write content to files",
TextIO.write().to(filenamePrefix).withOutputFilenames())
- .getPerDestinationOutputFilenames().apply(Values.<String>create());
+ /** IO IT with no compression. */
+ @RunWith(JUnit4.class)
+ public static class UncompressedTextIOIT {
+
+ @Rule
+ public TestPipeline pipeline = TestPipeline.create();
+
+ @Test
+ public void writeThenReadAll() {
+ PCollection<String> testFilenames = pipeline
+ .apply("Generate sequence",
GenerateSequence.from(0).to(numberOfTextLines))
+ .apply("Produce text lines", ParDo.of(new
DeterministicallyConstructTestTextLineFn()))
+ .apply("Write content to files",
TextIO.write().to(filenamePrefix).withOutputFilenames())
+ .getPerDestinationOutputFilenames().apply(Values.<String>create());
+
+ PCollection<String> consolidatedHashcode = testFilenames
+ .apply("Read all files", TextIO.readAll())
+ .apply("Calculate hashcode", Combine.globally(new HashingFn()));
+
+ String expectedHash = getExpectedHashForLineCount(numberOfTextLines);
+ PAssert.thatSingleton(consolidatedHashcode).isEqualTo(expectedHash);
+
+ testFilenames.apply("Delete test files", ParDo.of(new DeleteFileFn())
+
.withSideInputs(consolidatedHashcode.apply(View.<String>asSingleton())));
+
+ pipeline.run().waitUntilFinish();
+ }
+ }
+
+ /** IO IT with various compression types. */
+ @RunWith(Parameterized.class)
+ public static class CompressedTextIOIT {
+
+ @Rule
+ public TestPipeline pipeline = TestPipeline.create();
+
+ @Parameterized.Parameters()
+ public static Iterable<Compression> data() {
+ return ImmutableList.<Compression>builder()
+ .add(GZIP)
+ .add(DEFLATE)
+ .add(BZIP2)
+ .build();
+ }
+
+ @Parameterized.Parameter()
+ public Compression compression;
+
+ @Test
+ public void writeThenReadAllWithCompression() {
+ TextIO.TypedWrite<String, Object> write = TextIO
+ .write()
+ .to(filenamePrefix)
+ .withOutputFilenames()
+ .withCompression(compression);
+
+ TextIO.ReadAll read = TextIO.readAll().withCompression(AUTO);
- PCollection<String> consolidatedHashcode = testFilenames
- .apply("Read all files", TextIO.readAll())
- .apply("Calculate hashcode", Combine.globally(new HashingFn()));
+ PCollection<String> testFilenames = pipeline
Review comment:
This and uncompressed version have the same pipeline. Can't we share to code
between tests (and keep the same test class TextIOIT) and add "compression
type" as a parameter to the test (a Maven -D parameter for the perfkit based
runs) ?
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