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#!/usr/bin/env python
#
# Copyright 2016 WebAssembly Community Group participants
#
# 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.
#
import argparse
import cStringIO
import json
import os
import sys
from utils import Error
JS_HEADER = """\
var passed = 0;
var failed = 0;
var quiet = false;
"""
MODULE_RUN = """\
testModule%(module_index)s();
"""
MODULE_RUN_FOOTER = """\
end();
"""
MODULE_TEST_HEADER = """\
function testModule%(module_index)s() {
"""
MODULE_DATA_HEADER = """\
var module = createModule([
"""
MODULE_DATA_FOOTER = """\
]);
"""
INVOKE_COMMAND = """\
invoke(module, '%(name)s');
"""
ASSERT_RETURN_COMMAND = """\
assertReturn(module, '%(name)s', '%(file)s', %(line)s);
"""
ASSERT_TRAP_COMMAND = """\
assertTrap(module, '%(name)s', '%(file)s', %(line)s);
"""
COMMANDS = {
'invoke': INVOKE_COMMAND,
'assert_return': ASSERT_RETURN_COMMAND,
'assert_return_nan': ASSERT_RETURN_COMMAND,
'assert_trap': ASSERT_TRAP_COMMAND
}
MODULE_TEST_FOOTER = """\
}
"""
JS_FOOTER = """\
function createModule(data) {
var u8a = new Uint8Array(data);
var ffi = {spectest: {print: print}};
return Wasm.instantiateModule(u8a.buffer, ffi);
}
function assertReturn(module, name, file, line) {
try {
var result = module.exports[name]();
} catch(e) {
print(file + ":" + line + ": " + name + " unexpectedly threw: " + e);
}
if (result == 1) {
passed++;
} else {
print(file + ":" + line + ": " + name + " failed.");
failed++;
}
}
function assertTrap(module, name, file, line) {
var threw = false;
try {
module.exports[name]();
} catch (e) {
threw = true;
}
if (threw) {
passed++;
} else {
print(file + ":" + line + ": " + name + " failed, didn't throw");
failed++;
}
}
function invoke(module, name) {
try {
var invokeResult = module.exports[name]();
} catch(e) {
print(file + ":" + line + ": " + name + " unexpectedly threw: " + e);
}
if (!quiet)
print(name + " = " + invokeResult);
}
function end() {
if ((failed > 0) || !quiet)
print(passed + "/" + (passed + failed) + " tests passed.");
}
"""
def ProcessJsonFile(json_file_path):
json_file_dir = os.path.dirname(json_file_path)
with open(json_file_path) as json_file:
json_data = json.load(json_file)
output = cStringIO.StringIO()
output.write(JS_HEADER)
for module_index in range(len(json_data['modules'])):
output.write(MODULE_RUN % {'module_index': module_index})
output.write(MODULE_RUN_FOOTER)
for module_index, module in enumerate(json_data['modules']):
module_filepath = os.path.join(json_file_dir, module['filename'])
with open(module_filepath, 'rb') as wasm_file:
wasm_data = wasm_file.read()
output.write(MODULE_TEST_HEADER % {'module_index': module_index})
output.write(MODULE_DATA_HEADER)
WriteModuleBytes(output, wasm_data)
output.write(MODULE_DATA_FOOTER)
for command_index, command in enumerate(module['commands']):
output.write(COMMANDS[command['type']] % command)
output.write(MODULE_TEST_FOOTER)
output.write(JS_FOOTER)
return output.getvalue()
def WriteModuleBytes(output, module_data):
BYTES_PER_LINE = 16
offset = 0
while True:
line_data = module_data[offset:offset+BYTES_PER_LINE]
if not line_data:
break
output.write(' ')
output.write(', '.join('%3d' % ord(byte) for byte in line_data))
output.write(',\n')
offset += BYTES_PER_LINE
def main(args):
parser = argparse.ArgumentParser()
parser.add_argument('-o', '--output', metavar='PATH', help='output file.')
parser.add_argument('file', help='spec json file.')
options = parser.parse_args(args)
output_data = ProcessJsonFile(options.file)
if options.output:
output_file = open(options.output, 'w')
else:
output_file = sys.stdout
try:
output_file.write(output_data)
finally:
output_file.close()
return 0
if __name__ == '__main__':
try:
sys.exit(main(sys.argv[1:]))
except Error as e:
sys.stderr.write(str(e) + '\n')
sys.exit(1)
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