tools/telemetry/telemetry/value/scalar_unittest.py

# Copyright 2013 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import os
import unittest

from telemetry import value
from telemetry.page import page_set
from telemetry.value import scalar

class TestBase(unittest.TestCase):
  def setUp(self):
    self.page_set =  page_set.PageSet.FromDict({
      "description": "hello",
      "archive_path": "foo.wpr",
      "pages": [
        {"url": "http://www.bar.com/"},
        {"url": "http://www.baz.com/"},
        {"url": "http://www.foo.com/"}
        ]
      }, os.path.dirname(__file__))

  @property
  def pages(self):
    return self.page_set.pages

class ValueTest(TestBase):
  def testBuildbotValueType(self):
    page0 = self.pages[0]
    v = scalar.ScalarValue(page0, 'x', 'unit', 3, important=True)
    self.assertEquals('default', v.GetBuildbotDataType(
        value.MERGED_PAGES_RESULT_OUTPUT_CONTEXT))
    self.assertEquals([3], v.GetBuildbotValue())
    self.assertEquals(('x_by_url', page0.display_name),
                      v.GetBuildbotMeasurementAndTraceNameForPerPageResult())

    v = scalar.ScalarValue(page0, 'x', 'unit', 3, important=False)
    self.assertEquals(
        'unimportant',
        v.GetBuildbotDataType(value.MERGED_PAGES_RESULT_OUTPUT_CONTEXT))

  def testScalarSamePageMerging(self):
    page0 = self.pages[0]
    v0 = scalar.ScalarValue(page0, 'x', 'unit', 1)
    v1 = scalar.ScalarValue(page0, 'x', 'unit', 2)
    self.assertTrue(v1.IsMergableWith(v0))

    vM = scalar.ScalarValue.MergeLikeValuesFromSamePage([v0, v1])
    self.assertEquals(page0, vM.page)
    self.assertEquals('x', vM.name)
    self.assertEquals('unit', vM.units)
    self.assertEquals(True, vM.important)
    self.assertEquals([1, 2], vM.values)

  def testScalarDifferentSiteMerging(self):
    page0 = self.pages[0]
    page1 = self.pages[1]
    v0 = scalar.ScalarValue(page0, 'x', 'unit', 1)
    v1 = scalar.ScalarValue(page1, 'x', 'unit', 2)

    vM = scalar.ScalarValue.MergeLikeValuesFromDifferentPages([v0, v1])
    self.assertEquals(None, vM.page)
    self.assertEquals('x', vM.name)
    self.assertEquals('unit', vM.units)
    self.assertEquals(True, vM.important)
    self.assertEquals([1, 2], vM.values)