def test_subst_returns_unmodified():
bs = BS(some="value")
fixture = "this string needs no subst"
result = subst(bs, fixture, for_command=True)
assert result == fixture.split()
result = subst(bs, "this string needs no subst")
assert result == fixture
def test_subst_callable_cannot_mutate_build_state():
def mutator(bs):
bs["MUTATED"] = True
bs = BS(MUTATOR=mutator)
try:
subst(bs, "$MUTATOR")
assert False, "MUTATOR mutated the build state!"
except TypeError:
pass
def test_subst_self_referential():
bs = BS(CC="gcc",
CCFLAGS=["-gsplit-dwarf", "-Werror", "-Wall"],
LINKFLAGS="$CCFLAGS")
result = subst(bs, "$CC $CCFLAGS $LINKFLAGS", for_command=True)
assert result == [
"gcc",
"-gsplit-dwarf",
"-Werror",
"-Wall",
"-gsplit-dwarf",
"-Werror",
"-Wall",
]
def test_subst_generate_real_command():
bs = BS(
CC="gcc",
CCFLAGS=["-gsplit-dwarf", "-Werror", "-Wall"],
)
s = "$CC -o $target $CCFLAGS $LINKFLAGS $sources"
result = subst(bs, s, targets=["foo"], sources=["foo.c"], for_command=True)
assert result == [
"gcc",
"-o",
"foo",
"-gsplit-dwarf",
"-Werror",
"-Wall",
"foo.c",
]
def test_subst_callable():
def include_paths(bs):
include_flags = [
"-I{}".format(subst(bs, path, for_command=False))
for path in bs.get("CPATH", [])
]
return include_flags
def recursive_callable(bs):
return "$RECURSED"
bs = BS(
CC_COMMAND=
"$CC $_INCLUDES $CCFLAGS -o $target $sources $recursive_callable",
_INCLUDES=include_paths,
recursive_callable=recursive_callable,
RECURSED=True,
BUILD_DIR="build",
CPATH=["$BUILD_DIR", "/usr/local/include"],
CC="gcc",
)
result = subst(bs,
"$CC_COMMAND",
for_command=True,
targets=["foo"],
sources=["foo.c"])
assert result == [
"gcc",
"-Ibuild",
"-I/usr/local/include",
"-o",
"foo",
"foo.c",
"True",
]
def subst(self, s):
return subst(self, s, for_command=False)
def subst_command(self, s, targets=None, sources=None):
return subst(self, s, for_command=True, targets=targets, sources=sources)
def include_paths(bs):
include_flags = [
"-I{}".format(subst(bs, path, for_command=False))
for path in bs.get("CPATH", [])
]
return include_flags
def test_subst_mixed_string_and_list_variables():
bs = BS(CC="gcc", CCFLAGS=["-gsplit-dwarf", "-Werror", "-Wall"])
result = subst(bs, "$CC $CCFLAGS", for_command=True)
assert result == ["gcc", "-gsplit-dwarf", "-Werror", "-Wall"]
def test_subst_only_string_variables():
bs = BS(foo="FOO", bar="BAR", baz="BAZ")
result = subst(bs, "$foo $baz $bar", for_command=True)
assert result == ["FOO", "BAZ", "BAR"]