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#!/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 Main file from a classes.xml file.
"""
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
import testgen.mixins as mixins
from collections import namedtuple
import itertools
import functools
import xml.etree.ElementTree as ET
class MainClass(mixins.DumpMixin, mixins.Named, mixins.JavaFileMixin):
"""
A mainclass and main method for this test.
"""
MAIN_CLASS_TEMPLATE = """{copyright}
class Main {{
{test_groups}
{test_funcs}
{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
"""
self.tests = set()
self.global_funcs = set()
def add_instance(self, it):
"""
Add an instance test for the given class
"""
self.tests.add(it)
def add_func(self, f):
"""
Add a function to the class
"""
self.global_funcs.add(f)
def get_name(self):
"""
Get the name of this class
"""
return "Main"
def __str__(self):
"""
Print this class
"""
all_tests = sorted(self.tests)
test_invoke = ""
test_groups = ""
for t in all_tests:
test_groups += str(t)
for t in sorted(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)
funcs = ""
for f in self.global_funcs:
funcs += str(f)
return self.MAIN_CLASS_TEMPLATE.format(copyright = get_copyright('java'),
test_groups=test_groups,
main_func=main_func, test_funcs=funcs)
class InstanceTest(mixins.Named, mixins.NameComparableMixin):
"""
A method that runs tests for a particular concrete type, It calls the test
cases for running it in all possible ways.
"""
INSTANCE_TEST_TEMPLATE = """
public static void {test_name}() {{
System.out.println("Testing for type {ty}");
String s = "{ty}";
{ty} v = new {ty}();
{invokes}
System.out.println("End testing for type {ty}");
}}
"""
TEST_INVOKE_TEMPLATE = """
{fname}(s, v);
"""
def __init__(self, main, ty):
"""
Initialize this test group for the given type
"""
self.ty = ty
self.main = main
self.funcs = set()
self.main.add_instance(self)
def get_name(self):
"""
Get the name of this test group
"""
return "TEST_NAME_"+self.ty
def add_func(self, f):
"""
Add a test function to this test group
"""
self.main.add_func(f)
self.funcs.add(f)
def __str__(self):
"""
Returns the java code for this function
"""
func_invokes = ""
for f in sorted(self.funcs, key=lambda a: (a.func, a.farg)):
func_invokes += self.TEST_INVOKE_TEMPLATE.format(fname=f.get_name(),
farg=f.farg)
return self.INSTANCE_TEST_TEMPLATE.format(test_name=self.get_name(), ty=self.ty,
invokes=func_invokes)
class Func(mixins.Named, mixins.NameComparableMixin):
"""
A single test case that attempts to invoke a function on receiver of a given type.
"""
TEST_FUNCTION_TEMPLATE = """
public static void {fname}(String s, {farg} v) {{
try {{
System.out.printf("%s-{invoke_type:<9} {farg:>9}.{callfunc}()='%s'\\n", s, v.{callfunc}());
return;
}} catch (Error e) {{
System.out.printf("%s-{invoke_type} on {farg}: {callfunc}() threw exception!\\n", s);
if (e instanceof IncompatibleClassChangeError) {{
System.out.printf("Exception is of type %s\\n", e.getClass().getName());
}} else {{
e.printStackTrace(System.out);
}}
}}
}}
"""
def __init__(self, func, farg, invoke):
"""
Initialize this test function for the given invoke type and argument
"""
self.func = func
self.farg = farg
self.invoke = invoke
def get_name(self):
"""
Get the name of this test
"""
return "Test_Func_{}_{}_{}".format(self.func, self.farg, self.invoke)
def __str__(self):
"""
Get the java code for this test function
"""
return self.TEST_FUNCTION_TEMPLATE.format(fname=self.get_name(),
farg=self.farg,
invoke_type=self.invoke,
callfunc=self.func)
def flatten_classes(classes, c):
"""
Iterate over all the classes 'c' can be used as
"""
while c:
yield c
c = classes.get(c.super_class)
def flatten_class_methods(classes, c):
"""
Iterate over all the methods 'c' can call
"""
for c1 in flatten_classes(classes, c):
yield from c1.methods
def flatten_interfaces(dat, c):
"""
Iterate over all the interfaces 'c' transitively implements
"""
def get_ifaces(cl):
for i2 in cl.implements:
yield dat.interfaces[i2]
yield from get_ifaces(dat.interfaces[i2])
for cl in flatten_classes(dat.classes, c):
yield from get_ifaces(cl)
def flatten_interface_methods(dat, i):
"""
Iterate over all the interface methods 'c' can call
"""
yield from i.methods
for i2 in flatten_interfaces(dat, i):
yield from i2.methods
def make_main_class(dat):
"""
Creates a Main.java file that runs all the tests
"""
m = MainClass()
for c in dat.classes.values():
i = InstanceTest(m, c.name)
for clazz in flatten_classes(dat.classes, c):
for meth in flatten_class_methods(dat.classes, clazz):
i.add_func(Func(meth, clazz.name, 'virtual'))
for iface in flatten_interfaces(dat, clazz):
for meth in flatten_interface_methods(dat, iface):
i.add_func(Func(meth, clazz.name, 'virtual'))
i.add_func(Func(meth, iface.name, 'interface'))
return m
class TestData(namedtuple("TestData", ['classes', 'interfaces'])):
"""
A class representing the classes.xml document.
"""
pass
class Clazz(namedtuple("Clazz", ["name", "methods", "super_class", "implements"])):
"""
A class representing a class element in the classes.xml document.
"""
pass
class IFace(namedtuple("IFace", ["name", "methods", "super_class", "implements"])):
"""
A class representing an interface element in the classes.xml document.
"""
pass
def parse_xml(xml):
"""
Parse the xml description of this test.
"""
classes = dict()
ifaces = dict()
root = ET.fromstring(xml)
for iface in root.find("interfaces"):
name = iface.attrib['name']
implements = [a.text for a in iface.find("implements")]
methods = [a.text for a in iface.find("methods")]
ifaces[name] = IFace(name = name,
super_class = iface.attrib['super'],
methods = methods,
implements = implements)
for clazz in root.find('classes'):
name = clazz.attrib['name']
implements = [a.text for a in clazz.find("implements")]
methods = [a.text for a in clazz.find("methods")]
classes[name] = Clazz(name = name,
super_class = clazz.attrib['super'],
methods = methods,
implements = implements)
return TestData(classes, ifaces)
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)
class_data = parse_xml((java_dir / "classes.xml").open().read())
make_main_class(class_data).dump(java_dir)
if __name__ == '__main__':
main(sys.argv)