utils/lit/lit/formats/googletest.py

   1 from __future__ import absolute_import
   2 import os
   3 import sys
   4
   5 import lit.Test
   6 import lit.TestRunner
   7 import lit.util
   8
   9 kIsWindows = sys.platform in ['win32', 'cygwin']
  10
  11 class GoogleTest(object):
  12     def __init__(self, test_sub_dir, test_suffix):
  13         self.test_sub_dir = os.path.normcase(str(test_sub_dir)).split(';')
  14         self.test_suffix = str(test_suffix)
  15
  16         # On Windows, assume tests will also end in '.exe'.
  17         if kIsWindows:
  18             self.test_suffix += '.exe'
  19
  20     def getGTestTests(self, path, litConfig, localConfig):
  21         """getGTestTests(path) - [name]
  22
  23         Return the tests available in gtest executable.
  24
  25         Args:
  26           path: String path to a gtest executable
  27           litConfig: LitConfig instance
  28           localConfig: TestingConfig instance"""
  29
  30         try:
  31             lines = lit.util.capture([path, '--gtest_list_tests'],
  32                                      env=localConfig.environment)
  33             lines = lines.decode('ascii')
  34             if kIsWindows:
  35               lines = lines.replace('\r', '')
  36             lines = lines.split('\n')
  37         except:
  38             litConfig.error("unable to discover google-tests in %r" % path)
  39             raise StopIteration
  40
  41         nested_tests = []
  42         for ln in lines:
  43             if not ln.strip():
  44                 continue
  45
  46             prefix = ''
  47             index = 0
  48             while ln[index*2:index*2+2] == '  ':
  49                 index += 1
  50             while len(nested_tests) > index:
  51                 nested_tests.pop()
  52
  53             ln = ln[index*2:]
  54             if ln.endswith('.'):
  55                 nested_tests.append(ln)
  56             else:
  57                 yield ''.join(nested_tests) + ln
  58
  59     # Note: path_in_suite should not include the executable name.
  60     def getTestsInExecutable(self, testSuite, path_in_suite, execpath,
  61                              litConfig, localConfig):
  62         if not execpath.endswith(self.test_suffix):
  63             return
  64         (dirname, basename) = os.path.split(execpath)
  65         # Discover the tests in this executable.
  66         for testname in self.getGTestTests(execpath, litConfig, localConfig):
  67             testPath = path_in_suite + (basename, testname)
  68             yield lit.Test.Test(testSuite, testPath, localConfig)
  69
  70     def getTestsInDirectory(self, testSuite, path_in_suite,
  71                             litConfig, localConfig):
  72         source_path = testSuite.getSourcePath(path_in_suite)
  73         for filename in os.listdir(source_path):
  74             filepath = os.path.join(source_path, filename)
  75             if os.path.isdir(filepath):
  76                 # Iterate over executables in a directory.
  77                 if not os.path.normcase(filename) in self.test_sub_dir:
  78                     continue
  79                 dirpath_in_suite = path_in_suite + (filename, )
  80                 for subfilename in os.listdir(filepath):
  81                     execpath = os.path.join(filepath, subfilename)
  82                     for test in self.getTestsInExecutable(
  83                             testSuite, dirpath_in_suite, execpath,
  84                             litConfig, localConfig):
  85                       yield test
  86             elif ('.' in self.test_sub_dir):
  87                 for test in self.getTestsInExecutable(
  88                         testSuite, path_in_suite, filepath,
  89                         litConfig, localConfig):
  90                     yield test
  91
  92     def execute(self, test, litConfig):
  93         testPath,testName = os.path.split(test.getSourcePath())
  94         while not os.path.exists(testPath):
  95             # Handle GTest parametrized and typed tests, whose name includes
  96             # some '/'s.
  97             testPath, namePrefix = os.path.split(testPath)
  98             testName = os.path.join(namePrefix, testName)
  99
 100         cmd = [testPath, '--gtest_filter=' + testName]
 101         if litConfig.useValgrind:
 102             cmd = litConfig.valgrindArgs + cmd
 103
 104         if litConfig.noExecute:
 105             return lit.Test.PASS, ''
 106
 107         out, err, exitCode = lit.TestRunner.executeCommand(
 108             cmd, env=test.config.environment)
 109
 110         if not exitCode:
 111             return lit.Test.PASS,''
 112
 113         return lit.Test.FAIL, out + err