| #! /usr/bin/env python3 |
| import subprocess |
| import time |
| import glob |
| import os |
| import tempfile |
| import unittest |
| |
| SIZES = [3, 11] # Always 2 sizes |
| MIB = 1048576 |
| LZ4 = os.path.dirname(os.path.realpath(__file__)) + "/../lz4" |
| if not os.path.exists(LZ4): |
| LZ4 = os.path.dirname(os.path.realpath(__file__)) + "/../programs/lz4" |
| TEMP = tempfile.gettempdir() |
| |
| |
| class NVerboseFileInfo(object): |
| def __init__(self, line_in): |
| self.line = line_in |
| splitlines = line_in.split() |
| if len(splitlines) != 7: |
| errout("Unexpected line: {}".format(line_in)) |
| self.frames, self.type, self.block, self.compressed, self.uncompressed, self.ratio, self.filename = splitlines |
| self.exp_unc_size = 0 |
| # Get real file sizes |
| if "concat-all" in self.filename or "2f--content-size" in self.filename: |
| for i in SIZES: |
| self.exp_unc_size += os.path.getsize("{}/test_list_{}M".format(TEMP, i)) |
| else: |
| uncompressed_filename = self.filename.split("-")[0] |
| self.exp_unc_size += os.path.getsize("{}/{}".format(TEMP, uncompressed_filename)) |
| self.exp_comp_size = os.path.getsize("{}/{}".format(TEMP, self.filename)) |
| |
| |
| class TestNonVerbose(unittest.TestCase): |
| @classmethod |
| def setUpClass(self): |
| self.nvinfo_list = [] |
| for i, line in enumerate(execute("{} --list -m {}/test_list_*.lz4".format(LZ4, TEMP), print_output=True)): |
| if i > 0: |
| self.nvinfo_list.append(NVerboseFileInfo(line)) |
| |
| def test_frames(self): |
| all_concat_frames = 0 |
| all_concat_index = None |
| for i, nvinfo in enumerate(self.nvinfo_list): |
| if "concat-all" in nvinfo.filename: |
| all_concat_index = i |
| elif "2f--content-size" in nvinfo.filename: |
| self.assertEqual("2", nvinfo.frames, nvinfo.line) |
| all_concat_frames += 2 |
| else: |
| self.assertEqual("1", nvinfo.frames, nvinfo.line) |
| all_concat_frames += 1 |
| self.assertNotEqual(None, all_concat_index, "Couldn't find concat-all file index.") |
| self.assertEqual(self.nvinfo_list[all_concat_index].frames, str(all_concat_frames), self.nvinfo_list[all_concat_index].line) |
| |
| def test_frame_types(self): |
| for nvinfo in self.nvinfo_list: |
| if "-lz4f-" in nvinfo.filename: |
| self.assertEqual(nvinfo.type, "LZ4Frame", nvinfo.line) |
| elif "-legc-" in nvinfo.filename: |
| self.assertEqual(nvinfo.type, "LegacyFrame", nvinfo.line) |
| elif "-skip-" in nvinfo.filename: |
| self.assertEqual(nvinfo.type, "SkippableFrame", nvinfo.line) |
| |
| def test_block(self): |
| for nvinfo in self.nvinfo_list: |
| # if "-leg" in nvinfo.filename or "-skip" in nvinfo.filename: |
| # self.assertEqual(nvinfo.block, "-", nvinfo.line) |
| if "--BD" in nvinfo.filename: |
| self.assertRegex(nvinfo.block, "^B[0-9]+D$", nvinfo.line) |
| elif "--BI" in nvinfo.filename: |
| self.assertRegex(nvinfo.block, "^B[0-9]+I$", nvinfo.line) |
| |
| def test_compressed_size(self): |
| for nvinfo in self.nvinfo_list: |
| self.assertEqual(nvinfo.compressed, to_human(nvinfo.exp_comp_size), nvinfo.line) |
| |
| def test_ratio(self): |
| for nvinfo in self.nvinfo_list: |
| if "--content-size" in nvinfo.filename: |
| self.assertEqual(nvinfo.ratio, "{:.2f}%".format(float(nvinfo.exp_comp_size) / float(nvinfo.exp_unc_size) * 100), nvinfo.line) |
| |
| def test_uncompressed_size(self): |
| for nvinfo in self.nvinfo_list: |
| if "--content-size" in nvinfo.filename: |
| self.assertEqual(nvinfo.uncompressed, to_human(nvinfo.exp_unc_size), nvinfo.line) |
| |
| |
| class VerboseFileInfo(object): |
| def __init__(self, lines): |
| # Parse lines |
| self.frame_list = [] |
| self.file_frame_map = [] |
| for i, line in enumerate(lines): |
| if i == 0: |
| self.filename = line |
| continue |
| elif i == 1: |
| # Skip header |
| continue |
| frame_info = dict(zip(["frame", "type", "block", "checksum", "compressed", "uncompressed", "ratio"], line.split())) |
| frame_info["line"] = line |
| self.frame_list.append(frame_info) |
| |
| |
| class TestVerbose(unittest.TestCase): |
| @classmethod |
| def setUpClass(self): |
| # Even do we're listing 2 files to test multiline working as expected. |
| # we're only really interested in testing the output of the concat-all file. |
| self.vinfo_list = [] |
| start = end = 0 |
| output = execute("{} --list -m -v {}/test_list_concat-all.lz4 {}/test_list_*M-lz4f-2f--content-size.lz4".format(LZ4, TEMP, TEMP), print_output=True) |
| for i, line in enumerate(output): |
| if line.startswith("test_list"): |
| if start != 0 and end != 0: |
| self.vinfo_list.append(VerboseFileInfo(output[start:end])) |
| start = i |
| if not line: |
| end = i |
| self.vinfo_list.append(VerboseFileInfo(output[start:end])) |
| # Populate file_frame_map as a reference of the expected info |
| concat_file_list = glob.glob("/tmp/test_list_[!concat]*.lz4") |
| # One of the files has 2 frames so duplicate it in this list to map each frame 1 to a single file |
| for i, filename in enumerate(concat_file_list): |
| if "2f--content-size" in filename: |
| concat_file_list.insert(i, filename) |
| break |
| self.cvinfo = self.vinfo_list[0] |
| self.cvinfo.file_frame_map = concat_file_list |
| self.cvinfo.compressed_size = os.path.getsize("{}/test_list_concat-all.lz4".format(TEMP)) |
| |
| def test_filename(self): |
| for i, vinfo in enumerate(self.vinfo_list): |
| self.assertRegex(vinfo.filename, "^test_list_.*({}/{})".format(i + 1, len(self.vinfo_list))) |
| |
| def test_frame_number(self): |
| for vinfo in self.vinfo_list: |
| for i, frame_info in enumerate(vinfo.frame_list): |
| self.assertEqual(frame_info["frame"], str(i + 1), frame_info["line"]) |
| |
| def test_frame_type(self): |
| for i, frame_info in enumerate(self.cvinfo.frame_list): |
| if "-lz4f-" in self.cvinfo.file_frame_map[i]: |
| self.assertEqual(self.cvinfo.frame_list[i]["type"], "LZ4Frame", self.cvinfo.frame_list[i]["line"]) |
| elif "-legc-" in self.cvinfo.file_frame_map[i]: |
| self.assertEqual(self.cvinfo.frame_list[i]["type"], "LegacyFrame", self.cvinfo.frame_list[i]["line"]) |
| elif "-skip-" in self.cvinfo.file_frame_map[i]: |
| self.assertEqual(self.cvinfo.frame_list[i]["type"], "SkippableFrame", self.cvinfo.frame_list[i]["line"]) |
| |
| def test_block(self): |
| for i, frame_info in enumerate(self.cvinfo.frame_list): |
| if "--BD" in self.cvinfo.file_frame_map[i]: |
| self.assertRegex(self.cvinfo.frame_list[i]["block"], "^B[0-9]+D$", self.cvinfo.frame_list[i]["line"]) |
| elif "--BI" in self.cvinfo.file_frame_map[i]: |
| self.assertEqual(self.cvinfo.frame_list[i]["block"], "^B[0-9]+I$", self.cvinfo.frame_list[i]["line"]) |
| |
| def test_checksum(self): |
| for i, frame_info in enumerate(self.cvinfo.frame_list): |
| if "-lz4f-" in self.cvinfo.file_frame_map[i] and "--no-frame-crc" not in self.cvinfo.file_frame_map[i]: |
| self.assertEqual(self.cvinfo.frame_list[i]["checksum"], "XXH32", self.cvinfo.frame_list[i]["line"]) |
| |
| def test_compressed(self): |
| total = 0 |
| for i, frame_info in enumerate(self.cvinfo.frame_list): |
| if "-2f-" not in self.cvinfo.file_frame_map[i]: |
| expected_size = os.path.getsize(self.cvinfo.file_frame_map[i]) |
| self.assertEqual(self.cvinfo.frame_list[i]["compressed"], str(expected_size), self.cvinfo.frame_list[i]["line"]) |
| total += int(self.cvinfo.frame_list[i]["compressed"]) |
| self.assertEqual(total, self.cvinfo.compressed_size, "Expected total sum ({}) to match {} filesize".format(total, self.cvinfo.filename)) |
| |
| def test_uncompressed(self): |
| for i, frame_info in enumerate(self.cvinfo.frame_list): |
| ffm = self.cvinfo.file_frame_map[i] |
| if "-2f-" not in ffm and "--content-size" in ffm: |
| expected_size_unc = int(ffm[ffm.rindex("_") + 1:ffm.index("M")]) * 1048576 |
| self.assertEqual(self.cvinfo.frame_list[i]["uncompressed"], str(expected_size_unc), self.cvinfo.frame_list[i]["line"]) |
| |
| def test_ratio(self): |
| for i, frame_info in enumerate(self.cvinfo.frame_list): |
| if "--content-size" in self.cvinfo.file_frame_map[i]: |
| self.assertEqual(self.cvinfo.frame_list[i]['ratio'], |
| "{:.2f}%".format(float(self.cvinfo.frame_list[i]['compressed']) / float(self.cvinfo.frame_list[i]['uncompressed']) * 100), |
| self.cvinfo.frame_list[i]["line"]) |
| |
| |
| def to_human(size): |
| for unit in ['', 'K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y']: |
| if size < 1024.0: |
| break |
| size /= 1024.0 |
| return "{:.2f}{}".format(size, unit) |
| |
| |
| def log(text): |
| print(time.strftime("%Y/%m/%d %H:%M:%S") + ' - ' + text) |
| |
| |
| def errout(text, err=1): |
| log(text) |
| exit(err) |
| |
| |
| def execute(command, print_command=True, print_output=False, print_error=True, param_shell=True): |
| if os.environ.get('QEMU_SYS'): |
| command = "{} {}".format(os.environ['QEMU_SYS'], command) |
| if print_command: |
| log("> " + command) |
| popen = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=param_shell) |
| stdout_lines, stderr_lines = popen.communicate() |
| stderr_lines = stderr_lines.decode("utf-8") |
| stdout_lines = stdout_lines.decode("utf-8") |
| if print_output: |
| if stdout_lines: |
| print(stdout_lines) |
| if stderr_lines: |
| print(stderr_lines) |
| if popen.returncode is not None and popen.returncode != 0: |
| if stderr_lines and not print_output and print_error: |
| print(stderr_lines) |
| errout("Failed to run: {}\n".format(command, stdout_lines + stderr_lines)) |
| return (stdout_lines + stderr_lines).splitlines() |
| |
| |
| def cleanup(silent=False): |
| for f in glob.glob("{}/test_list*".format(TEMP)): |
| if not silent: |
| log("Deleting {}".format(f)) |
| os.unlink(f) |
| |
| |
| def datagen(file_name, size): |
| non_sparse_size = size // 2 |
| sparse_size = size - non_sparse_size |
| with open(file_name, "wb") as f: |
| f.seek(sparse_size) |
| f.write(os.urandom(non_sparse_size)) |
| |
| |
| def generate_files(): |
| # file format ~ test_list<frametype>-<no_frames>f<create-args>.lz4 ~ |
| # Generate LZ4Frames |
| for i in SIZES: |
| filename = "{}/test_list_{}M".format(TEMP, i) |
| log("Generating {}".format(filename)) |
| datagen(filename, i * MIB) |
| for j in ["--content-size", "-BI", "-BD", "-BX", "--no-frame-crc"]: |
| lz4file = "{}-lz4f-1f{}.lz4".format(filename, j) |
| execute("{} {} {} {}".format(LZ4, j, filename, lz4file)) |
| # Generate skippable frames |
| lz4file = "{}-skip-1f.lz4".format(filename) |
| skipsize = i * 1024 |
| skipbytes = bytes([80, 42, 77, 24]) + skipsize.to_bytes(4, byteorder='little', signed=False) |
| with open(lz4file, 'wb') as f: |
| f.write(skipbytes) |
| f.write(os.urandom(skipsize)) |
| # Generate legacy frames |
| lz4file = "{}-legc-1f.lz4".format(filename) |
| execute("{} -l {} {}".format(LZ4, filename, lz4file)) |
| |
| # Concatenate --content-size files |
| file_list = glob.glob("{}/test_list_*-lz4f-1f--content-size.lz4".format(TEMP)) |
| with open("{}/test_list_{}M-lz4f-2f--content-size.lz4".format(TEMP, sum(SIZES)), 'ab') as outfile: |
| for fname in file_list: |
| with open(fname, 'rb') as infile: |
| outfile.write(infile.read()) |
| |
| # Concatenate all files |
| file_list = glob.glob("{}/test_list_*.lz4".format(TEMP)) |
| with open("{}/test_list_concat-all.lz4".format(TEMP), 'ab') as outfile: |
| for fname in file_list: |
| with open(fname, 'rb') as infile: |
| outfile.write(infile.read()) |
| |
| |
| if __name__ == '__main__': |
| cleanup() |
| generate_files() |
| unittest.main(verbosity=2, exit=False) |
| cleanup(silent=True) |
