spark-instrumented-optimizer/python/pyspark/tests/test_join.py
zero323 31a16fbb40 [SPARK-32714][PYTHON] Initial pyspark-stubs port
### What changes were proposed in this pull request?

This PR proposes migration of [`pyspark-stubs`](https://github.com/zero323/pyspark-stubs) into Spark codebase.

### Why are the changes needed?

### Does this PR introduce _any_ user-facing change?

Yes. This PR adds type annotations directly to Spark source.

This can impact interaction with development tools for users, which haven't used `pyspark-stubs`.

### How was this patch tested?

- [x] MyPy tests of the PySpark source
    ```
    mypy --no-incremental --config python/mypy.ini python/pyspark
    ```
- [x] MyPy tests of Spark examples
    ```
   MYPYPATH=python/ mypy --no-incremental --config python/mypy.ini examples/src/main/python/ml examples/src/main/python/sql examples/src/main/python/sql/streaming
    ```
- [x] Existing Flake8 linter

- [x] Existing unit tests

Tested against:

- `mypy==0.790+dev.e959952d9001e9713d329a2f9b196705b028f894`
- `mypy==0.782`

Closes #29591 from zero323/SPARK-32681.

Authored-by: zero323 <mszymkiewicz@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-09-24 14:15:36 +09:00

70 lines
2.9 KiB
Python

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from pyspark.testing.utils import ReusedPySparkTestCase
class JoinTests(ReusedPySparkTestCase):
def test_narrow_dependency_in_join(self):
rdd = self.sc.parallelize(range(10)).map(lambda x: (x, x))
parted = rdd.partitionBy(2)
self.assertEqual(2, parted.union(parted).getNumPartitions())
self.assertEqual(rdd.getNumPartitions() + 2, parted.union(rdd).getNumPartitions())
self.assertEqual(rdd.getNumPartitions() + 2, rdd.union(parted).getNumPartitions())
tracker = self.sc.statusTracker()
self.sc.setJobGroup("test1", "test", True)
d = sorted(parted.join(parted).collect())
self.assertEqual(10, len(d))
self.assertEqual((0, (0, 0)), d[0])
jobId = tracker.getJobIdsForGroup("test1")[0]
self.assertEqual(2, len(tracker.getJobInfo(jobId).stageIds))
self.sc.setJobGroup("test2", "test", True)
d = sorted(parted.join(rdd).collect())
self.assertEqual(10, len(d))
self.assertEqual((0, (0, 0)), d[0])
jobId = tracker.getJobIdsForGroup("test2")[0]
self.assertEqual(3, len(tracker.getJobInfo(jobId).stageIds))
self.sc.setJobGroup("test3", "test", True)
d = sorted(parted.cogroup(parted).collect())
self.assertEqual(10, len(d))
self.assertEqual([[0], [0]], list(map(list, d[0][1])))
jobId = tracker.getJobIdsForGroup("test3")[0]
self.assertEqual(2, len(tracker.getJobInfo(jobId).stageIds))
self.sc.setJobGroup("test4", "test", True)
d = sorted(parted.cogroup(rdd).collect())
self.assertEqual(10, len(d))
self.assertEqual([[0], [0]], list(map(list, d[0][1])))
jobId = tracker.getJobIdsForGroup("test4")[0]
self.assertEqual(3, len(tracker.getJobInfo(jobId).stageIds))
if __name__ == "__main__":
import unittest
from pyspark.tests.test_join import * # noqa: F401
try:
import xmlrunner # type: ignore[import]
testRunner = xmlrunner.XMLTestRunner(output='target/test-reports', verbosity=2)
except ImportError:
testRunner = None
unittest.main(testRunner=testRunner, verbosity=2)