1 files changed, 106 insertions, 0 deletions
diff --git a/src/tests/intg/util.py b/src/tests/intg/util.py
new file mode 100644
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--- /dev/null
+++ b/src/tests/intg/util.py
@@ -0,0 +1,106 @@
+#
+# Various functions
+#
+# Copyright (c) 2015 Red Hat, Inc.
+# Author: Nikolai Kondrashov <Nikolai.Kondrashov@redhat.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+import re
+import os
+import sys
+import subprocess
+import config
+import shutil
+
+UNINDENT_RE = re.compile("^ +", re.MULTILINE)
+
+
+def unindent(text):
+    """
+        Unindent text by removing at most the number of spaces present in
+        the first non-empty line from the beginning of every line.
+    """
+    indent_ref = [0]
+
+    def replace(match):
+        if indent_ref[0] == 0:
+            indent_ref[0] = len(match.group())
+        return match.group()[indent_ref[0]:]
+    return UNINDENT_RE.sub(replace, text)
+
+
+def run_shell():
+    """
+        Execute an interactive shell under "screen", preserving environment.
+        For use as a breakpoint for debugging.
+    """
+    my_env = os.environ.copy()
+    my_env["ROOT_DIR"] = config.PREFIX
+
+    # screen filter out LD_* evniroment varibles.
+    # Back-up them and set them later in screenrc
+    my_env["_LD_LIBRARY_PATH"] = os.getenv("LD_LIBRARY_PATH", "")
+    my_env["_LD_PRELOAD"] = os.getenv("LD_PRELOAD", "")
+
+    subprocess.call([
+        "screen", "-DAm", "-S", "sssd_cwrap_session", "-c",
+        ".config/screenrc"],
+        env=my_env
+    )
+
+
+def first_dir(*args):
+    """Return first argument that points to an existing directory."""
+    for arg in args:
+        if os.path.isdir(arg):
+            return arg
+
+
+def backup_envvar_file(name):
+    path = os.environ[name]
+    backup_path = path + ".bak"
+    shutil.copyfile(path, backup_path)
+    return path
+
+
+def restore_envvar_file(name):
+    path = os.environ[name]
+    backup_path = path + ".bak"
+    os.rename(backup_path, path)
+
+
+def get_call_output(cmd, stderr_output=subprocess.PIPE, check=False):
+    """
+        Executes the provided command.
+        When check is set to True, this function will throw an exception
+        if the command returns with a non-zero value.
+    """
+
+    if (sys.version_info.major < 3
+            or (sys.version_info.major == 3 and sys.version_info.minor < 7)):
+        try:
+            output = subprocess.check_output(cmd, universal_newlines=True,
+                                             stderr=stderr_output)
+        except subprocess.CalledProcessError as err:
+            if (not check):
+                output = err.output
+            else:
+                raise err
+        return output
+
+    process = subprocess.run(cmd, check=check, text=True,
+                             stdout=subprocess.PIPE, stderr=stderr_output)
+    return process.stdout