testing/mozbase/mozfile/tests/test_extract.py

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/testing/mozbase/mozfile/tests/test_extract.py	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,133 @@
     1.4 +#!/usr/bin/env python
     1.5 +
     1.6 +import mozfile
     1.7 +import os
     1.8 +import shutil
     1.9 +import tarfile
    1.10 +import tempfile
    1.11 +import stubs
    1.12 +import unittest
    1.13 +import zipfile
    1.14 +
    1.15 +
    1.16 +class TestExtract(unittest.TestCase):
    1.17 +    """test extracting archives"""
    1.18 +
    1.19 +    def ensure_directory_contents(self, directory):
    1.20 +        """ensure the directory contents match"""
    1.21 +        for f in stubs.files:
    1.22 +            path = os.path.join(directory, *f)
    1.23 +            exists = os.path.exists(path)
    1.24 +            if not exists:
    1.25 +                print "%s does not exist" % (os.path.join(f))
    1.26 +            self.assertTrue(exists)
    1.27 +            if exists:
    1.28 +                contents = file(path).read().strip()
    1.29 +                self.assertTrue(contents == f[-1])
    1.30 +
    1.31 +    def test_extract_zipfile(self):
    1.32 +        """test extracting a zipfile"""
    1.33 +        _zipfile = self.create_zip()
    1.34 +        self.assertTrue(os.path.exists(_zipfile))
    1.35 +        try:
    1.36 +            dest = tempfile.mkdtemp()
    1.37 +            try:
    1.38 +                mozfile.extract_zip(_zipfile, dest)
    1.39 +                self.ensure_directory_contents(dest)
    1.40 +            finally:
    1.41 +                shutil.rmtree(dest)
    1.42 +        finally:
    1.43 +            os.remove(_zipfile)
    1.44 +
    1.45 +    def test_extract_tarball(self):
    1.46 +        """test extracting a tarball"""
    1.47 +        tarball = self.create_tarball()
    1.48 +        self.assertTrue(os.path.exists(tarball))
    1.49 +        try:
    1.50 +            dest = tempfile.mkdtemp()
    1.51 +            try:
    1.52 +                mozfile.extract_tarball(tarball, dest)
    1.53 +                self.ensure_directory_contents(dest)
    1.54 +            finally:
    1.55 +                shutil.rmtree(dest)
    1.56 +        finally:
    1.57 +            os.remove(tarball)
    1.58 +
    1.59 +    def test_extract(self):
    1.60 +        """test the generalized extract function"""
    1.61 +
    1.62 +        # test extracting a tarball
    1.63 +        tarball = self.create_tarball()
    1.64 +        self.assertTrue(os.path.exists(tarball))
    1.65 +        try:
    1.66 +            dest = tempfile.mkdtemp()
    1.67 +            try:
    1.68 +                mozfile.extract(tarball, dest)
    1.69 +                self.ensure_directory_contents(dest)
    1.70 +            finally:
    1.71 +                shutil.rmtree(dest)
    1.72 +        finally:
    1.73 +            os.remove(tarball)
    1.74 +
    1.75 +        # test extracting a zipfile
    1.76 +        _zipfile = self.create_zip()
    1.77 +        self.assertTrue(os.path.exists(_zipfile))
    1.78 +        try:
    1.79 +            dest = tempfile.mkdtemp()
    1.80 +            try:
    1.81 +                mozfile.extract_zip(_zipfile, dest)
    1.82 +                self.ensure_directory_contents(dest)
    1.83 +            finally:
    1.84 +                shutil.rmtree(dest)
    1.85 +        finally:
    1.86 +            os.remove(_zipfile)
    1.87 +
    1.88 +        # test extracting some non-archive; this should fail
    1.89 +        fd, filename = tempfile.mkstemp()
    1.90 +        os.write(fd, 'This is not a zipfile or tarball')
    1.91 +        os.close(fd)
    1.92 +        exception = None
    1.93 +        try:
    1.94 +            dest = tempfile.mkdtemp()
    1.95 +            mozfile.extract(filename, dest)
    1.96 +        except Exception, exception:
    1.97 +            pass
    1.98 +        finally:
    1.99 +            os.remove(filename)
   1.100 +            os.rmdir(dest)
   1.101 +        self.assertTrue(isinstance(exception, Exception))
   1.102 +
   1.103 +    ### utility functions
   1.104 +
   1.105 +    def create_tarball(self):
   1.106 +        """create a stub tarball for testing"""
   1.107 +        tempdir = stubs.create_stub()
   1.108 +        filename = tempfile.mktemp(suffix='.tar')
   1.109 +        archive = tarfile.TarFile(filename, mode='w')
   1.110 +        try:
   1.111 +            for path in stubs.files:
   1.112 +                archive.add(os.path.join(tempdir, *path), arcname=os.path.join(*path))
   1.113 +        except:
   1.114 +            os.remove(archive)
   1.115 +            raise
   1.116 +        finally:
   1.117 +            shutil.rmtree(tempdir)
   1.118 +        archive.close()
   1.119 +        return filename
   1.120 +
   1.121 +    def create_zip(self):
   1.122 +        """create a stub zipfile for testing"""
   1.123 +
   1.124 +        tempdir = stubs.create_stub()
   1.125 +        filename = tempfile.mktemp(suffix='.zip')
   1.126 +        archive = zipfile.ZipFile(filename, mode='w')
   1.127 +        try:
   1.128 +            for path in stubs.files:
   1.129 +                archive.write(os.path.join(tempdir, *path), arcname=os.path.join(*path))
   1.130 +        except:
   1.131 +            os.remove(filename)
   1.132 +            raise
   1.133 +        finally:
   1.134 +            shutil.rmtree(tempdir)
   1.135 +        archive.close()
   1.136 +        return filename

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