lit.cfg revision 407fbdd161d4134901fefe267779a4aaaeab2f0d 
1# -*- Python -*-
2
3# Configuration file for the 'lit' test runner.
4
5import os
6
7# name: The name of this test suite.
8config.name = 'LLVM-Unit'
9
10# suffixes: A list of file extensions to treat as test files.
11config.suffixes = []
12
13# test_source_root: The root path where tests are located.
14# test_exec_root: The root path where tests should be run.
15llvm_obj_root = getattr(config, 'llvm_obj_root', None)
16if llvm_obj_root is not None:
17    config.test_exec_root = os.path.join(llvm_obj_root, 'unittests')
18    config.test_source_root = config.test_exec_root
19
20# testFormat: The test format to use to interpret tests.
21llvm_build_mode = getattr(config, 'llvm_build_mode', "Debug")
22config.test_format = lit.formats.GoogleTest(llvm_build_mode, 'Tests')
23
24###
25
26import os
27
28# Check that the object root is known.
29if config.test_exec_root is None:
30    # Otherwise, we haven't loaded the site specific configuration (the user is
31    # probably trying to run on a test file directly, and either the site
32    # configuration hasn't been created by the build system, or we are in an
33    # out-of-tree build situation).
34
35    # Check for 'llvm_unit_site_config' user parameter, and use that if available.
36    site_cfg = lit.params.get('llvm_unit_site_config', None)
37    if site_cfg and os.path.exists(site_cfg):
38        lit.load_config(config, site_cfg)
39        raise SystemExit
40
41    # Try to detect the situation where we are using an out-of-tree build by
42    # looking for 'llvm-config'.
43    #
44    # FIXME: I debated (i.e., wrote and threw away) adding logic to
45    # automagically generate the lit.site.cfg if we are in some kind of fresh
46    # build situation. This means knowing how to invoke the build system
47    # though, and I decided it was too much magic.
48
49    llvm_config = lit.util.which('llvm-config', config.environment['PATH'])
50    if not llvm_config:
51        lit.fatal('No site specific configuration available!')
52
53    # Get the source and object roots.
54    llvm_src_root = lit.util.capture(['llvm-config', '--src-root']).strip()
55    llvm_obj_root = lit.util.capture(['llvm-config', '--obj-root']).strip()
56
57    # Validate that we got a tree which points to here.
58    this_src_root = os.path.join(os.path.dirname(__file__),'..','..')
59    if os.path.realpath(llvm_src_root) != os.path.realpath(this_src_root):
60        lit.fatal('No site specific configuration available!')
61
62    # Check that the site specific configuration exists.
63    site_cfg = os.path.join(llvm_obj_root, 'test', 'Unit', 'lit.site.cfg')
64    if not os.path.exists(site_cfg):
65        lit.fatal('No site specific configuration available!')
66
67    # Okay, that worked. Notify the user of the automagic, and reconfigure.
68    lit.note('using out-of-tree build at %r' % llvm_obj_root)
69    lit.load_config(config, site_cfg)
70    raise SystemExit
71