xref: /minix3/external/bsd/llvm/dist/llvm/utils/lit/lit/formats/googletest.py (revision 0a6a1f1d05b60e214de2f05a7310ddd1f0e590e7) 
1from __future__ import absolute_import
2import os
3import sys
4
5import lit.Test
6import lit.TestRunner
7import lit.util
8from .base import TestFormat
9
10kIsWindows = sys.platform in ['win32', 'cygwin']
11
12class GoogleTest(TestFormat):
13    def __init__(self, test_sub_dir, test_suffix):
14        self.test_sub_dir = os.path.normcase(str(test_sub_dir)).split(';')
15        self.test_suffix = str(test_suffix)
16
17        # On Windows, assume tests will also end in '.exe'.
18        if kIsWindows:
19            self.test_suffix += '.exe'
20
21    def getGTestTests(self, path, litConfig, localConfig):
22        """getGTestTests(path) - [name]
23
24        Return the tests available in gtest executable.
25
26        Args:
27          path: String path to a gtest executable
28          litConfig: LitConfig instance
29          localConfig: TestingConfig instance"""
30
31        try:
32            lines = lit.util.capture([path, '--gtest_list_tests'],
33                                     env=localConfig.environment)
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, file_path=execpath)
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.util.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
114