tests/verifiers/test_verify_metrics.py

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# Verification of impalad metrics after a test run.

from tests.common.impala_test_suite import ImpalaTestSuite
from tests.verifiers.metric_verifier import MetricVerifier

class TestValidateMetrics(ImpalaTestSuite):
  """Verify metric values from the debug webpage.

  This test suite must be run after all the tests have been run, and no
  in-flight queries remain.
  TODO: Add a test for local assignments.
  """

  def test_metrics_are_zero(self):
    """Test that all the metric in METRIC_LIST are 0"""
    verifier = MetricVerifier(self.impalad_test_service)
    verifier.verify_metrics_are_zero()

  def test_num_unused_buffers(self):
    """Test that all buffers are unused"""
    verifier = MetricVerifier(self.impalad_test_service)
    verifier.verify_num_unused_buffers()