1# -*- Python -*-
2
3# Configuration file for the 'lit' test runner.
4
5import os
6
7import lit.formats
8
9# name: The name of this test suite.
10config.name = 'LLVM-Unit'
11
12# suffixes: A list of file extensions to treat as test files.
13config.suffixes = []
14
15# is_early; Request to run this suite early.
16config.is_early = True
17
18# test_source_root: The root path where tests are located.
19# test_exec_root: The root path where tests should be run.
20llvm_obj_root = getattr(config, 'llvm_obj_root', None)
21if llvm_obj_root is not None:
22    config.test_exec_root = os.path.join(llvm_obj_root, 'unittests')
23    config.test_source_root = config.test_exec_root
24
25# testFormat: The test format to use to interpret tests.
26llvm_build_mode = getattr(config, 'llvm_build_mode', "Debug")
27config.test_format = lit.formats.GoogleTest(llvm_build_mode, 'Tests')
28
29# Propagate the temp directory. Windows requires this because it uses \Windows\
30# if none of these are present.
31if 'TMP' in os.environ:
32    config.environment['TMP'] = os.environ['TMP']
33if 'TEMP' in os.environ:
34    config.environment['TEMP'] = os.environ['TEMP']
35
36# Propagate path to symbolizer for ASan/MSan.
37for symbolizer in ['ASAN_SYMBOLIZER_PATH', 'MSAN_SYMBOLIZER_PATH']:
38    if symbolizer in os.environ:
39        config.environment[symbolizer] = os.environ[symbolizer]
40
41# Win32 seeks DLLs along %PATH%.
42if sys.platform in ['win32', 'cygwin'] and os.path.isdir(config.shlibdir):
43    config.environment['PATH'] = os.path.pathsep.join((
44            config.shlibdir, config.environment['PATH']))
45
46###
47
48# Check that the object root is known.
49if config.test_exec_root is None:
50    # Otherwise, we haven't loaded the site specific configuration (the user is
51    # probably trying to run on a test file directly, and either the site
52    # configuration hasn't been created by the build system, or we are in an
53    # out-of-tree build situation).
54
55    # Check for 'llvm_unit_site_config' user parameter, and use that if available.
56    site_cfg = lit_config.params.get('llvm_unit_site_config', None)
57    if site_cfg and os.path.exists(site_cfg):
58        lit_config.load_config(config, site_cfg)
59        raise SystemExit
60
61    # Try to detect the situation where we are using an out-of-tree build by
62    # looking for 'llvm-config'.
63    #
64    # FIXME: I debated (i.e., wrote and threw away) adding logic to
65    # automagically generate the lit.site.cfg if we are in some kind of fresh
66    # build situation. This means knowing how to invoke the build system
67    # though, and I decided it was too much magic.
68
69    llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
70    if not llvm_config:
71        lit_config.fatal('No site specific configuration available!')
72
73    # Get the source and object roots.
74    llvm_src_root = lit.util.capture(['llvm-config', '--src-root']).strip()
75    llvm_obj_root = lit.util.capture(['llvm-config', '--obj-root']).strip()
76
77    # Validate that we got a tree which points to here.
78    this_src_root = os.path.join(os.path.dirname(__file__),'..','..')
79    if os.path.realpath(llvm_src_root) != os.path.realpath(this_src_root):
80        lit_config.fatal('No site specific configuration available!')
81
82    # Check that the site specific configuration exists.
83    site_cfg = os.path.join(llvm_obj_root, 'test', 'Unit', 'lit.site.cfg')
84    if not os.path.exists(site_cfg):
85        lit_config.fatal('No site specific configuration available!')
86
87    # Okay, that worked. Notify the user of the automagic, and reconfigure.
88    lit_config.note('using out-of-tree build at %r' % llvm_obj_root)
89    lit_config.load_config(config, site_cfg)
90    raise SystemExit
91