tests/observability/test_plan_graph_tool.py

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import os
import tempfile
from subprocess import check_output

from tests.common.impala_test_suite import ImpalaTestSuite
from tests.common.test_vector import HS2

IMPALA_HOME = os.environ['IMPALA_HOME']
PLAN_GRAPH = os.path.join(IMPALA_HOME, 'bin/diagnostics/experimental/plan-graph.py')


class TestPlanGraphTool(ImpalaTestSuite):
  """Tests to ensure profile changes won't break plan-graph.py."""

  @classmethod
  def default_test_protocol(cls):
    return HS2

  def test_runtime_filter_parsing(self):
    query_opts = {'runtime_filter_wait_time_ms': 10000}
    res = self.execute_query("""
        select STRAIGHT_JOIN count(l_orderkey)
        from tpch_parquet.lineitem join tpch_parquet.orders
        on l_orderkey = o_orderkey
        where o_custkey < 1000""", query_opts)
    assert res.success

    with tempfile.TemporaryDirectory() as tmpdir:
      profile_path = os.path.join(tmpdir, 'profile.txt')
      with open(profile_path, 'w') as profile_file:
        profile_file.write(res.runtime_profile)
      output = check_output([PLAN_GRAPH, profile_path], text=True)

    expected = (
        r'RF000[bloom]\no_orderkey => l_orderkey\nLOCAL, fpp 2.06e-06\n1.00 MB')
    assert expected in output, output