| #!/usr/bin/python3 |
| # |
| # Copyright (C) 2015 The Android Open Source Project |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| """ |
| Generate Java test files for test 961. |
| """ |
| |
| import os |
| import sys |
| from pathlib import Path |
| |
| BUILD_TOP = os.getenv("ANDROID_BUILD_TOP") |
| if BUILD_TOP is None: |
| print("ANDROID_BUILD_TOP not set. Please run build/envsetup.sh", file=sys.stderr) |
| sys.exit(1) |
| |
| # Allow us to import utils and mixins. |
| sys.path.append(str(Path(BUILD_TOP)/"art"/"test"/"utils"/"python")) |
| |
| from testgen.utils import get_copyright, subtree_sizes, gensym, filter_blanks |
| import testgen.mixins as mixins |
| |
| from functools import total_ordering |
| import itertools |
| import string |
| |
| # The max depth the type tree can have. Includes the class object in the tree. |
| # Increasing this increases the number of generated files significantly. This |
| # value was chosen as it is fairly quick to run and very comprehensive, checking |
| # every possible interface tree up to 5 layers deep. |
| MAX_IFACE_DEPTH = 5 |
| |
| class MainClass(mixins.DumpMixin, mixins.Named, mixins.JavaFileMixin): |
| """ |
| A Main.java file containing the Main class and the main function. It will run |
| all the test functions we have. |
| """ |
| |
| MAIN_CLASS_TEMPLATE = """{copyright} |
| class Main {{ |
| {test_groups} |
| {main_func} |
| }} |
| """ |
| |
| MAIN_FUNCTION_TEMPLATE = """ |
| public static void main(String[] args) {{ |
| {test_group_invoke} |
| }} |
| """ |
| |
| TEST_GROUP_INVOKE_TEMPLATE = """ |
| {test_name}(); |
| """ |
| |
| def __init__(self): |
| """ |
| Initialize this MainClass. We start out with no tests. |
| """ |
| self.tests = set() |
| |
| def get_expected(self): |
| """ |
| Get the expected output of this test. |
| """ |
| all_tests = sorted(self.tests) |
| return filter_blanks("\n".join(a.get_expected() for a in all_tests)) |
| |
| def add_test(self, ty): |
| """ |
| Add a test for the concrete type 'ty' |
| """ |
| self.tests.add(Func(ty)) |
| |
| def get_name(self): |
| """ |
| Get the name of this class |
| """ |
| return "Main" |
| |
| def __str__(self): |
| """ |
| Print the MainClass java code. |
| """ |
| all_tests = sorted(self.tests) |
| test_invoke = "" |
| test_groups = "" |
| for t in all_tests: |
| test_groups += str(t) |
| for t in all_tests: |
| test_invoke += self.TEST_GROUP_INVOKE_TEMPLATE.format(test_name=t.get_name()) |
| main_func = self.MAIN_FUNCTION_TEMPLATE.format(test_group_invoke=test_invoke) |
| |
| return self.MAIN_CLASS_TEMPLATE.format(copyright = get_copyright("java"), |
| test_groups = test_groups, |
| main_func = main_func) |
| |
| class Func(mixins.Named, mixins.NameComparableMixin): |
| """ |
| A function that tests the functionality of a concrete type. Should only be |
| constructed by MainClass.add_test. |
| """ |
| |
| TEST_FUNCTION_TEMPLATE = """ |
| public static void {fname}() {{ |
| try {{ |
| {farg} v = new {farg}(); |
| System.out.printf("%s calls default method on %s\\n", |
| v.CalledClassName(), |
| v.CalledInterfaceName()); |
| return; |
| }} catch (Error e) {{ |
| e.printStackTrace(System.out); |
| return; |
| }} |
| }} |
| """ |
| |
| def __init__(self, farg): |
| """ |
| Initialize a test function for the given argument |
| """ |
| self.farg = farg |
| |
| def get_expected(self): |
| """ |
| Get the expected output calling this function. |
| """ |
| return "{tree} calls default method on {iface_tree}".format( |
| tree = self.farg.get_tree(), iface_tree = self.farg.get_called().get_tree()) |
| |
| def get_name(self): |
| """ |
| Get the name of this function |
| """ |
| return "TEST_FUNC_{}".format(self.farg.get_name()) |
| |
| def __str__(self): |
| """ |
| Print the java code of this function. |
| """ |
| return self.TEST_FUNCTION_TEMPLATE.format(fname=self.get_name(), farg=self.farg.get_name()) |
| |
| class TestClass(mixins.DumpMixin, mixins.Named, mixins.NameComparableMixin, mixins.JavaFileMixin): |
| """ |
| A class that will be instantiated to test default method resolution order. |
| """ |
| |
| TEST_CLASS_TEMPLATE = """{copyright} |
| public class {class_name} implements {iface_name} {{ |
| public String CalledClassName() {{ |
| return "{tree}"; |
| }} |
| }} |
| """ |
| |
| def __init__(self, iface): |
| """ |
| Initialize this test class which implements the given interface |
| """ |
| self.iface = iface |
| self.class_name = "CLASS_"+gensym() |
| |
| def get_name(self): |
| """ |
| Get the name of this class |
| """ |
| return self.class_name |
| |
| def get_tree(self): |
| """ |
| Print out a representation of the type tree of this class |
| """ |
| return "[{class_name} {iface_tree}]".format(class_name = self.class_name, |
| iface_tree = self.iface.get_tree()) |
| |
| def __iter__(self): |
| """ |
| Step through all interfaces implemented transitively by this class |
| """ |
| yield self.iface |
| yield from self.iface |
| |
| def get_called(self): |
| """ |
| Get the interface whose default method would be called when calling the |
| CalledInterfaceName function. |
| """ |
| all_ifaces = set(iface for iface in self if iface.default) |
| for i in all_ifaces: |
| if all(map(lambda j: i not in j.get_super_types(), all_ifaces)): |
| return i |
| raise Exception("UNREACHABLE! Unable to find default method!") |
| |
| def __str__(self): |
| """ |
| Print the java code of this class. |
| """ |
| return self.TEST_CLASS_TEMPLATE.format(copyright = get_copyright('java'), |
| iface_name = self.iface.get_name(), |
| tree = self.get_tree(), |
| class_name = self.class_name) |
| |
| class TestInterface(mixins.DumpMixin, mixins.Named, mixins.NameComparableMixin, mixins.JavaFileMixin): |
| """ |
| An interface that will be used to test default method resolution order. |
| """ |
| |
| TEST_INTERFACE_TEMPLATE = """{copyright} |
| public interface {class_name} {extends} {ifaces} {{ |
| public String CalledClassName(); |
| |
| {funcs} |
| }} |
| """ |
| |
| DEFAULT_FUNC_TEMPLATE = """ |
| public default String CalledInterfaceName() {{ |
| return "{tree}"; |
| }} |
| """ |
| |
| def __init__(self, ifaces, default): |
| """ |
| Initialize interface with the given super-interfaces |
| """ |
| self.ifaces = sorted(ifaces) |
| self.default = default |
| end = "_DEFAULT" if default else "" |
| self.class_name = "INTERFACE_"+gensym()+end |
| |
| def get_super_types(self): |
| """ |
| Returns a set of all the supertypes of this interface |
| """ |
| return set(i2 for i2 in self) |
| |
| def get_name(self): |
| """ |
| Get the name of this class |
| """ |
| return self.class_name |
| |
| def get_tree(self): |
| """ |
| Print out a representation of the type tree of this class |
| """ |
| return "[{class_name} {iftree}]".format(class_name = self.get_name(), |
| iftree = print_tree(self.ifaces)) |
| |
| def __iter__(self): |
| """ |
| Performs depth-first traversal of the interface tree this interface is the |
| root of. Does not filter out repeats. |
| """ |
| for i in self.ifaces: |
| yield i |
| yield from i |
| |
| def __str__(self): |
| """ |
| Print the java code of this interface. |
| """ |
| j_ifaces = " " |
| for i in self.ifaces: |
| j_ifaces += " {},".format(i.get_name()) |
| j_ifaces = j_ifaces[0:-1] |
| if self.default: |
| funcs = self.DEFAULT_FUNC_TEMPLATE.format(ifaces = j_ifaces, |
| tree = self.get_tree(), |
| class_name = self.class_name) |
| else: |
| funcs = "" |
| return self.TEST_INTERFACE_TEMPLATE.format(copyright = get_copyright('java'), |
| extends = "extends" if len(self.ifaces) else "", |
| ifaces = j_ifaces, |
| funcs = funcs, |
| tree = self.get_tree(), |
| class_name = self.class_name) |
| |
| def print_tree(ifaces): |
| """ |
| Prints a list of iface trees |
| """ |
| return " ".join(i.get_tree() for i in ifaces) |
| |
| # The deduplicated output of subtree_sizes for each size up to |
| # MAX_LEAF_IFACE_PER_OBJECT. |
| SUBTREES = [set(tuple(sorted(l)) for l in subtree_sizes(i)) |
| for i in range(MAX_IFACE_DEPTH + 1)] |
| |
| def create_interface_trees(): |
| """ |
| Return all legal interface trees |
| """ |
| def dump_supers(s): |
| """ |
| Does depth first traversal of all the interfaces in the list. |
| """ |
| for i in s: |
| yield i |
| yield from i |
| |
| def create_interface_trees_inner(num, allow_default): |
| for split in SUBTREES[num]: |
| ifaces = [] |
| for sub in split: |
| if sub == 1: |
| ifaces.append([TestInterface([], allow_default)]) |
| if allow_default: |
| ifaces[-1].append(TestInterface([], False)) |
| else: |
| ifaces.append(list(create_interface_trees_inner(sub, allow_default))) |
| for supers in itertools.product(*ifaces): |
| all_supers = sorted(set(dump_supers(supers)) - set(supers)) |
| for i in range(len(all_supers) + 1): |
| for combo in itertools.combinations(all_supers, i): |
| yield TestInterface(list(combo) + list(supers), allow_default) |
| if allow_default: |
| for i in range(len(split)): |
| ifaces = [] |
| for sub, cs in zip(split, itertools.count()): |
| if sub == 1: |
| ifaces.append([TestInterface([], i == cs)]) |
| else: |
| ifaces.append(list(create_interface_trees_inner(sub, i == cs))) |
| for supers in itertools.product(*ifaces): |
| all_supers = sorted(set(dump_supers(supers)) - set(supers)) |
| for i in range(len(all_supers) + 1): |
| for combo in itertools.combinations(all_supers, i): |
| yield TestInterface(list(combo) + list(supers), False) |
| |
| for num in range(1, MAX_IFACE_DEPTH): |
| yield from create_interface_trees_inner(num, True) |
| |
| def create_all_test_files(): |
| """ |
| Creates all the objects representing the files in this test. They just need to |
| be dumped. |
| """ |
| mc = MainClass() |
| classes = {mc} |
| for tree in create_interface_trees(): |
| classes.add(tree) |
| for i in tree: |
| classes.add(i) |
| test_class = TestClass(tree) |
| mc.add_test(test_class) |
| classes.add(test_class) |
| return mc, classes |
| |
| def main(argv): |
| java_dir = Path(argv[1]) |
| if not java_dir.exists() or not java_dir.is_dir(): |
| print("{} is not a valid java dir".format(java_dir), file=sys.stderr) |
| sys.exit(1) |
| expected_txt = Path(argv[2]) |
| mainclass, all_files = create_all_test_files() |
| with expected_txt.open('w') as out: |
| print(mainclass.get_expected(), file=out) |
| for f in all_files: |
| f.dump(java_dir) |
| |
| if __name__ == '__main__': |
| main(sys.argv) |
