[sanlock] 07/07: Start the daemon tests module

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teigland pushed a commit to branch master
in repository sanlock.

commit b7b0fe9a2a5488798f2782a7e3ac5e24fa131b0b
Author: Nir Soffer <nsoffer(a)redhat.com&gt;
Date:   Thu Jan 11 04:46:20 2018 +0200

    Start the daemon tests module
    
    The daemon test module provide the infrastructure to run sanlock daemon
    in the tests as the current user. Add a simple test to initialize a
    lockspace as example how to use it.
    
    Signed-off-by: Nir Soffer <nsoffer(a)redhat.com&gt;
---
 tests/daemon_test.py | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)

diff --git a/tests/daemon_test.py b/tests/daemon_test.py
new file mode 100644
index 0000000..a3d299f
--- /dev/null
+++ b/tests/daemon_test.py
@@ -0,0 +1,63 @@
+"""
+Test sanlock client operations.
+"""
+
+import io
+import os
+import struct
+import subprocess
+
+import pytest
+
+tests_dir = os.path.dirname(__file__)
+SANLOCK = os.path.join(tests_dir, os.pardir, "src", "sanlock")
+
+ENV = dict(os.environ)
+ENV["SANLOCK_RUN_DIR"] = "/tmp/sanlock"
+ENV["SANLOCK_PRIVILEGED"] = "0"
+
+
+(a)pytest.fixture(scope=&quot;session&quot;)
+def sanlock_daemon():
+    cmd = [SANLOCK, "daemon",
+           # no fork and print all logging to stderr
+           "-D",
+           # don't use watchdog through wdmd
+           "-w", "0",
+           # don't use mlockall
+           "-l", "0",
+           # don't use high priority (RR) scheduling
+           "-h", "0",
+           # run as current user instead of "sanlock"
+           "-U", ENV["USER"],
+           "-G", ENV["USER"]]
+    p = subprocess.Popen(cmd, env=ENV)
+    try:
+        yield
+    finally:
+        p.terminate()
+        p.wait()
+
+
+def test_init_lockspace(tmpdir, sanlock_daemon):
+    path = tmpdir.join("lockspace")
+    with io.open(str(path), "wb") as f:
+        # Poison with junk data.
+        f.write(b"x" * 1024**2 + b"X" * 512)
+
+    lockspace = "name:1:%s:0" % path
+    run(SANLOCK, "client", "init", "-s", lockspace)
+
+    with io.open(str(path), "rb") as f:
+        magic, = struct.unpack("< I", f.read(4))
+        assert magic == 0x12212010
+
+        # TODO: check more stuff here...
+
+        # Do not modify data after the lockspace area.
+        f.seek(1024**2, io.SEEK_SET)
+        assert f.read(512) == b"X" * 512
+
+
+def run(*args):
+    return subprocess.check_output(args, env=ENV)

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