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import unittest
# hack to save ourselves from having to use PYTHONPATH
import sys
import os
sys.path.append(os.path.join (os.getcwd(), '..'))
import bake
import re
class SrcTest:
_name=''
def __init__(self, name):
self._name = name
class DepInfo:
def __init__(self):
self._edges = []
self._optional_edges = []
def add(self,src,dst, optional = False):
self._optional_edges.append([src,dst, optional])
def edges(self):
return self._edges
class Test:
def __init__(self, deps_str, failure_targets):
# the syntax for deps_str encodes many things:
# B depends on A: "A -> B"
# When processing B, add new dependencies to dependency graph:
# B {
# C -> D
# D -> B
# }
# B depends optionally on A: "A ?> B"
#
self._deps = bake.Dependencies()
self._infos = self._parse(deps_str, self._deps)
self._failure = failure_targets
self._processed = []
def _parse(self,deps_str, deps):
infos = dict()
reg_edge = re.compile('([^ ]+) -> (.+)')
reg_opt_edge = re.compile('([^ ]+) \?> (.+)')
reg_open = re.compile('([^ ]+) {?')
reg_close = re.compile('}?')
current_info = None
current_info_dst = ''
for line in deps_str.splitlines():
match_edge = reg_edge.search(line)
match_opt_edge = reg_opt_edge.search(line)
match_open = reg_open.search(line)
match_close = reg_close.search(line)
if match_edge is not None:
src = match_edge.group(1)
dst = match_edge.group(2)
if current_info is None:
deps.add_dst(src)
deps.add_dst(dst)
deps.add_dep(src,dst)
else:
current_info.add(src,dst)
continue
if match_opt_edge is not None:
src = match_opt_edge.group(1)
dst = match_opt_edge.group(2)
if current_info is None:
deps.add_dst(src)
deps.add_dst(dst)
deps.add_dep(src,dst, optional = True)
else:
current_info.add(src,dst, optional = True)
continue
if match_open is not None:
dst = match_open.group(1)
current_info = DepInfo()
current_info_dst = dst;
continue
if match_close is not None:
infos[current_info_dst] = current_info
continue
return infos
def _dep_handler(self, target, context):
if target in self._failure:
return False
self._processed.append(target)
if self._infos.has_key(target):
for src,dst,optional in self._infos[target].edges ():
self._deps.add_dst(src)
self._deps.add_dst(dst)
self._deps.add_dep(src,dst, optional)
return True
def run(self, targets):
self._deps.resolve(targets, self._dep_handler, None)
return self._processed
class TestModuleDependencies(unittest.TestCase):
""" Tests for the dependencies between modules. """
def run_one_test(self, deps, targets, expected, failure = []):
test = Test (deps, failure)
got = test.run(targets)
self.assertEqual(got, expected)
def test_simple(self):
deps = """
foo.h -> foo.c
foo.c -> foo.o
bar.h -> bar.c
bar.c -> bar.o
foo.o -> main
bar.o -> main
lex.yy -> lex.yy.h
lex.yy.h -> bar.c
"""
self.run_one_test(deps, ['bar.o'],
['bar.h', 'lex.yy', 'lex.yy.h', 'bar.c', 'bar.o'])
self.run_one_test(deps, ['foo.o'],
['foo.h', 'foo.c', 'foo.o'])
self.run_one_test(deps, ['main'],
['bar.h', 'foo.h', 'lex.yy', 'foo.c', 'lex.yy.h',
'bar.c', 'foo.o', 'bar.o', 'main'])
self.run_one_test(deps, ['main', 'foo.o'],
['bar.h', 'foo.h', 'lex.yy', 'foo.c', 'lex.yy.h',
'bar.c', 'foo.o', 'bar.o', 'main'])
def Dtest_optional(self):
self.run_one_test("A ?> B", targets = [SrcTest('B')],
expected = [SrcTest('A'), SrcTest('B')])
self.run_one_test("A ?> B", targets = [SrcTest('B')],
expected = [SrcTest('B')],
failure = [SrcTest('A')])
self.assertRaises(bake.DependencyUnmet, self.run_one_test,
"A -> B", targets = [SrcTest('B')],
expected = [SrcTest('B')],
failure = [SrcTest('A')])
self.run_one_test("""A ?> B
B -> C
""", targets = ['C'],
expected = ['B', 'C'],
failure = ['A'])
self.run_one_test("""A ?> B
C ?> B
""", targets = ['B'],
expected = ['B'],
failure = ['A', 'C'])
if __name__ == '__main__':
unittest.main()
|
