2019-05-10 15:54:05 +00:00
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#! /usr/bin/env python3
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import subprocess
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import time
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import glob
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import os
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import tempfile
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import unittest
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SIZES = [3, 11] # Always 2 sizes
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MIB = 1048576
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2019-05-16 14:12:00 +00:00
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LZ4 = os.path.dirname(os.path.realpath(__file__)) + "/../lz4"
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2019-05-10 15:54:05 +00:00
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if not os.path.exists(LZ4):
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2019-05-16 14:12:00 +00:00
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LZ4 = os.path.dirname(os.path.realpath(__file__)) + "/../programs/lz4"
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2019-05-10 15:54:05 +00:00
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TEMP = tempfile.gettempdir()
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class NVerboseFileInfo(object):
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def __init__(self, line_in):
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self.line = line_in
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splitlines = line_in.split()
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if len(splitlines) != 7:
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errout("Unexpected line: {}".format(line_in))
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self.frames, self.type, self.block, self.compressed, self.uncompressed, self.ratio, self.filename = splitlines
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self.exp_unc_size = 0
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# Get real file sizes
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if "concat-all" in self.filename or "2f--content-size" in self.filename:
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for i in SIZES:
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self.exp_unc_size += os.path.getsize("{}/test_list_{}M".format(TEMP, i))
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else:
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uncompressed_filename = self.filename.split("-")[0]
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self.exp_unc_size += os.path.getsize("{}/{}".format(TEMP, uncompressed_filename))
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self.exp_comp_size = os.path.getsize("{}/{}".format(TEMP, self.filename))
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class TestNonVerbose(unittest.TestCase):
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@classmethod
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def setUpClass(self):
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self.nvinfo_list = []
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for i, line in enumerate(execute("{} --list -m {}/test_list_*.lz4".format(LZ4, TEMP), print_output=True)):
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if i > 0:
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self.nvinfo_list.append(NVerboseFileInfo(line))
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def test_frames(self):
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all_concat_frames = 0
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all_concat_index = None
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for i, nvinfo in enumerate(self.nvinfo_list):
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if "concat-all" in nvinfo.filename:
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all_concat_index = i
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elif "2f--content-size" in nvinfo.filename:
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self.assertEqual("2", nvinfo.frames, nvinfo.line)
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all_concat_frames += 2
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else:
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self.assertEqual("1", nvinfo.frames, nvinfo.line)
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all_concat_frames += 1
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self.assertNotEqual(None, all_concat_index, "Couldn't find concat-all file index.")
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self.assertEqual(self.nvinfo_list[all_concat_index].frames, str(all_concat_frames), self.nvinfo_list[all_concat_index].line)
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def test_frame_types(self):
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for nvinfo in self.nvinfo_list:
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if "-lz4f-" in nvinfo.filename:
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self.assertEqual(nvinfo.type, "LZ4Frame", nvinfo.line)
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elif "-legc-" in nvinfo.filename:
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self.assertEqual(nvinfo.type, "LegacyFrame", nvinfo.line)
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elif "-skip-" in nvinfo.filename:
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self.assertEqual(nvinfo.type, "SkippableFrame", nvinfo.line)
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def test_block(self):
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for nvinfo in self.nvinfo_list:
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# if "-leg" in nvinfo.filename or "-skip" in nvinfo.filename:
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# self.assertEqual(nvinfo.block, "-", nvinfo.line)
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if "--BD" in nvinfo.filename:
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self.assertRegex(nvinfo.block, "^B[0-9]+D$", nvinfo.line)
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elif "--BI" in nvinfo.filename:
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self.assertRegex(nvinfo.block, "^B[0-9]+I$", nvinfo.line)
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def test_compressed_size(self):
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for nvinfo in self.nvinfo_list:
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self.assertEqual(nvinfo.compressed, to_human(nvinfo.exp_comp_size), nvinfo.line)
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def test_ratio(self):
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for nvinfo in self.nvinfo_list:
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if "--content-size" in nvinfo.filename:
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self.assertEqual(nvinfo.ratio, "{:.2f}%".format(float(nvinfo.exp_comp_size) / float(nvinfo.exp_unc_size) * 100), nvinfo.line)
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def test_uncompressed_size(self):
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for nvinfo in self.nvinfo_list:
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if "--content-size" in nvinfo.filename:
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self.assertEqual(nvinfo.uncompressed, to_human(nvinfo.exp_unc_size), nvinfo.line)
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class VerboseFileInfo(object):
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def __init__(self, lines):
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# Parse lines
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self.frame_list = []
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self.file_frame_map = []
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for i, line in enumerate(lines):
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if i == 0:
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self.filename = line
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continue
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elif i == 1:
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# Skip header
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continue
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frame_info = dict(zip(["frame", "type", "block", "checksum", "compressed", "uncompressed", "ratio"], line.split()))
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frame_info["line"] = line
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self.frame_list.append(frame_info)
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class TestVerbose(unittest.TestCase):
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@classmethod
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def setUpClass(self):
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# Even do we're listing 2 files to test multiline working as expected.
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# we're only really interested in testing the output of the concat-all file.
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self.vinfo_list = []
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start = end = 0
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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)
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for i, line in enumerate(output):
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if line.startswith("test_list"):
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if start != 0 and end != 0:
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self.vinfo_list.append(VerboseFileInfo(output[start:end]))
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start = i
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if not line:
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end = i
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self.vinfo_list.append(VerboseFileInfo(output[start:end]))
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# Populate file_frame_map as a reference of the expected info
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concat_file_list = glob.glob("/tmp/test_list_[!concat]*.lz4")
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# One of the files has 2 frames so duplicate it in this list to map each frame 1 to a single file
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for i, filename in enumerate(concat_file_list):
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if "2f--content-size" in filename:
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concat_file_list.insert(i, filename)
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break
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self.cvinfo = self.vinfo_list[0]
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self.cvinfo.file_frame_map = concat_file_list
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self.cvinfo.compressed_size = os.path.getsize("{}/test_list_concat-all.lz4".format(TEMP))
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def test_filename(self):
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for i, vinfo in enumerate(self.vinfo_list):
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self.assertRegex(vinfo.filename, "^test_list_.*({}/{})".format(i + 1, len(self.vinfo_list)))
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def test_frame_number(self):
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for vinfo in self.vinfo_list:
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for i, frame_info in enumerate(vinfo.frame_list):
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self.assertEqual(frame_info["frame"], str(i + 1), frame_info["line"])
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def test_frame_type(self):
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for i, frame_info in enumerate(self.cvinfo.frame_list):
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if "-lz4f-" in self.cvinfo.file_frame_map[i]:
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self.assertEqual(self.cvinfo.frame_list[i]["type"], "LZ4Frame", self.cvinfo.frame_list[i]["line"])
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elif "-legc-" in self.cvinfo.file_frame_map[i]:
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self.assertEqual(self.cvinfo.frame_list[i]["type"], "LegacyFrame", self.cvinfo.frame_list[i]["line"])
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elif "-skip-" in self.cvinfo.file_frame_map[i]:
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self.assertEqual(self.cvinfo.frame_list[i]["type"], "SkippableFrame", self.cvinfo.frame_list[i]["line"])
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def test_block(self):
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for i, frame_info in enumerate(self.cvinfo.frame_list):
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if "--BD" in self.cvinfo.file_frame_map[i]:
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self.assertRegex(self.cvinfo.frame_list[i]["block"], "^B[0-9]+D$", self.cvinfo.frame_list[i]["line"])
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elif "--BI" in self.cvinfo.file_frame_map[i]:
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self.assertEqual(self.cvinfo.frame_list[i]["block"], "^B[0-9]+I$", self.cvinfo.frame_list[i]["line"])
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def test_checksum(self):
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for i, frame_info in enumerate(self.cvinfo.frame_list):
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if "-lz4f-" in self.cvinfo.file_frame_map[i] and "--no-frame-crc" not in self.cvinfo.file_frame_map[i]:
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self.assertEqual(self.cvinfo.frame_list[i]["checksum"], "XXH32", self.cvinfo.frame_list[i]["line"])
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def test_compressed(self):
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total = 0
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for i, frame_info in enumerate(self.cvinfo.frame_list):
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if "-2f-" not in self.cvinfo.file_frame_map[i]:
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expected_size = os.path.getsize(self.cvinfo.file_frame_map[i])
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self.assertEqual(self.cvinfo.frame_list[i]["compressed"], str(expected_size), self.cvinfo.frame_list[i]["line"])
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total += int(self.cvinfo.frame_list[i]["compressed"])
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self.assertEqual(total, self.cvinfo.compressed_size, "Expected total sum ({}) to match {} filesize".format(total, self.cvinfo.filename))
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def test_uncompressed(self):
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for i, frame_info in enumerate(self.cvinfo.frame_list):
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ffm = self.cvinfo.file_frame_map[i]
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if "-2f-" not in ffm and "--content-size" in ffm:
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expected_size_unc = int(ffm[ffm.rindex("_") + 1:ffm.index("M")]) * 1048576
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self.assertEqual(self.cvinfo.frame_list[i]["uncompressed"], str(expected_size_unc), self.cvinfo.frame_list[i]["line"])
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def test_ratio(self):
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for i, frame_info in enumerate(self.cvinfo.frame_list):
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if "--content-size" in self.cvinfo.file_frame_map[i]:
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self.assertEqual(self.cvinfo.frame_list[i]['ratio'],
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"{:.2f}%".format(float(self.cvinfo.frame_list[i]['compressed']) / float(self.cvinfo.frame_list[i]['uncompressed']) * 100),
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self.cvinfo.frame_list[i]["line"])
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def to_human(size):
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for unit in ['', 'K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y']:
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if size < 1024.0:
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break
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size /= 1024.0
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return "{:.2f}{}".format(size, unit)
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def log(text):
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print(time.strftime("%Y/%m/%d %H:%M:%S") + ' - ' + text)
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def errout(text, err=1):
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log(text)
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exit(err)
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def execute(command, print_command=True, print_output=False, print_error=True, param_shell=True):
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if os.environ.get('QEMU_SYS'):
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command = "{} {}".format(os.environ['QEMU_SYS'], command)
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if print_command:
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log("> " + command)
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popen = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=param_shell)
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stdout_lines, stderr_lines = popen.communicate()
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stderr_lines = stderr_lines.decode("utf-8")
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stdout_lines = stdout_lines.decode("utf-8")
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if print_output:
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if stdout_lines:
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print(stdout_lines)
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if stderr_lines:
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print(stderr_lines)
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if popen.returncode is not None and popen.returncode != 0:
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if stderr_lines and not print_output and print_error:
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print(stderr_lines)
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errout("Failed to run: {}\n".format(command, stdout_lines + stderr_lines))
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return (stdout_lines + stderr_lines).splitlines()
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def cleanup(silent=False):
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for f in glob.glob("{}/test_list*".format(TEMP)):
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if not silent:
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log("Deleting {}".format(f))
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os.unlink(f)
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def datagen(file_name, size):
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non_sparse_size = size // 2
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sparse_size = size - non_sparse_size
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with open(file_name, "wb") as f:
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f.seek(sparse_size)
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f.write(os.urandom(non_sparse_size))
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def generate_files():
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# file format ~ test_list<frametype>-<no_frames>f<create-args>.lz4 ~
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# Generate LZ4Frames
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for i in SIZES:
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filename = "{}/test_list_{}M".format(TEMP, i)
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log("Generating {}".format(filename))
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datagen(filename, i * MIB)
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for j in ["--content-size", "-BI", "-BD", "-BX", "--no-frame-crc"]:
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lz4file = "{}-lz4f-1f{}.lz4".format(filename, j)
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execute("{} {} {} {}".format(LZ4, j, filename, lz4file))
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# Generate skippable frames
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lz4file = "{}-skip-1f.lz4".format(filename)
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skipsize = i * 1024
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skipbytes = bytes([80, 42, 77, 24]) + skipsize.to_bytes(4, byteorder='little', signed=False)
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with open(lz4file, 'wb') as f:
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f.write(skipbytes)
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f.write(os.urandom(skipsize))
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# Generate legacy frames
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lz4file = "{}-legc-1f.lz4".format(filename)
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execute("{} -l {} {}".format(LZ4, filename, lz4file))
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# Concatenate --content-size files
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file_list = glob.glob("{}/test_list_*-lz4f-1f--content-size.lz4".format(TEMP))
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with open("{}/test_list_{}M-lz4f-2f--content-size.lz4".format(TEMP, sum(SIZES)), 'ab') as outfile:
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for fname in file_list:
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with open(fname, 'rb') as infile:
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outfile.write(infile.read())
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# Concatenate all files
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file_list = glob.glob("{}/test_list_*.lz4".format(TEMP))
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with open("{}/test_list_concat-all.lz4".format(TEMP), 'ab') as outfile:
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for fname in file_list:
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with open(fname, 'rb') as infile:
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outfile.write(infile.read())
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if __name__ == '__main__':
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cleanup()
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generate_files()
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unittest.main(verbosity=2, exit=False)
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cleanup(silent=True)
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