1 files changed, 104 insertions, 0 deletions
diff --git a/setuptools/tests/environment.py b/setuptools/tests/environment.py
new file mode 100644
index 00000000..7c754b8e
--- /dev/null
+++ b/setuptools/tests/environment.py
@@ -0,0 +1,104 @@
+import os
+import zipfile
+import sys
+import tempfile
+import unittest
+import shutil
+import stat
+
+
+def _extract(self, member, path=None, pwd=None):
+    """for zipfile py2.5 borrowed from cpython"""
+    if not isinstance(member, zipfile.ZipInfo):
+        member = self.getinfo(member)
+
+    if path is None:
+        path = os.getcwd()
+
+    return _extract_member(self, member, path, pwd)
+
+
+def _extract_from_zip(self, name, dest_path):
+    dest_file = open(dest_path, 'wb')
+    try:
+        dest_file.write(self.read(name))
+    finally:
+        dest_file.close()
+
+def _extract_member(self, member, targetpath, pwd):
+    """for zipfile py2.5 borrowed from cpython"""
+    # build the destination pathname, replacing
+    # forward slashes to platform specific separators.
+    # Strip trailing path separator, unless it represents the root.
+    if (targetpath[-1:] in (os.path.sep, os.path.altsep)
+        and len(os.path.splitdrive(targetpath)[1]) > 1):
+        targetpath = targetpath[:-1]
+
+    # don't include leading "/" from file name if present
+    if member.filename[0] == '/':
+        targetpath = os.path.join(targetpath, member.filename[1:])
+    else:
+        targetpath = os.path.join(targetpath, member.filename)
+
+    targetpath = os.path.normpath(targetpath)
+
+    # Create all upper directories if necessary.
+    upperdirs = os.path.dirname(targetpath)
+    if upperdirs and not os.path.exists(upperdirs):
+        os.makedirs(upperdirs)
+
+    if member.filename[-1] == '/':
+        if not os.path.isdir(targetpath):
+            os.mkdir(targetpath)
+        return targetpath
+
+    _extract_from_zip(self, member.filename, targetpath)
+
+    return targetpath
+
+
+def _remove_dir(target):
+
+    #on windows this seems to a problem
+    for dir_path, dirs, files in os.walk(target):
+        os.chmod(dir_path, stat.S_IWRITE)
+        for filename in files:
+            os.chmod(os.path.join(dir_path, filename), stat.S_IWRITE)
+    shutil.rmtree(target)
+
+
+class ZippedEnvironment(unittest.TestCase):
+
+    datafile = None
+    dataname = None
+    old_cwd = None
+
+    def setUp(self):
+        if not os.path.isfile(self.datafile):
+            self.old_cwd = None
+            return
+
+        self.old_cwd = os.getcwd()
+
+        self.temp_dir = tempfile.mkdtemp()
+        zip_file, source, target = [None, None, None]
+        try:
+            zip_file = zipfile.ZipFile(self.datafile)
+            for files in zip_file.namelist():
+                _extract(zip_file, files, self.temp_dir)
+        finally:
+            if zip_file:
+                zip_file.close()
+            del zip_file
+
+        os.chdir(os.path.join(self.temp_dir, self.dataname))
+
+    def tearDown(self):
+        try:
+            if self.old_cwd:
+                os.chdir(self.old_cwd)
+                _remove_dir(self.temp_dir)
+        except OSError:
+            #sigh?
+            pass
+