1 files changed, 93 insertions, 0 deletions
diff --git a/lldb/packages/Python/lldbsuite/test/commands/log/basic/TestLogging.py b/lldb/packages/Python/lldbsuite/test/commands/log/basic/TestLogging.py
new file mode 100644
index 00000000000..526288f3deb
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/commands/log/basic/TestLogging.py
@@ -0,0 +1,93 @@
+"""
+Test lldb logging.  This test just makes sure logging doesn't crash, and produces some output.
+"""
+
+from __future__ import print_function
+
+
+import os
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+
+class LogTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+    NO_DEBUG_INFO_TESTCASE = True
+
+    def setUp(self):
+        super(LogTestCase, self).setUp()
+        self.log_file = self.getBuildArtifact("log-file.txt")
+
+    def test(self):
+        self.build()
+        exe = self.getBuildArtifact("a.out")
+        self.expect("file " + exe,
+                    patterns=["Current executable set to .*a.out"])
+
+        log_file = os.path.join(self.getBuildDir(), "lldb-commands-log.txt")
+
+        if (os.path.exists(log_file)):
+            os.remove(log_file)
+
+        # By default, Debugger::EnableLog() will set log options to
+        # PREPEND_THREAD_NAME + OPTION_THREADSAFE. We don't want the
+        # threadnames here, so we enable just threadsafe (-t).
+        self.runCmd("log enable -t -f '%s' lldb commands" % (log_file))
+
+        self.runCmd("command alias bp breakpoint")
+
+        self.runCmd("bp set -n main")
+
+        self.runCmd("bp l")
+
+        self.runCmd("log disable lldb")
+
+        self.assertTrue(os.path.isfile(log_file))
+
+        f = open(log_file)
+        log_lines = f.readlines()
+        f.close()
+        os.remove(log_file)
+
+        self.assertGreater(
+            len(log_lines),
+            0,
+            "Something was written to the log file.")
+
+    # Check that lldb truncates its log files
+    def test_log_truncate(self):
+        # put something in our log file
+        with open(self.log_file, "w") as f:
+            for i in range(1, 1000):
+                f.write("bacon\n")
+
+        self.runCmd("log enable -t -f '%s' lldb commands" % self.log_file)
+        self.runCmd("help log")
+        self.runCmd("log disable lldb")
+
+        self.assertTrue(os.path.isfile(self.log_file))
+        with open(self.log_file, "r") as f:
+            contents = f.read()
+
+        # check that it got removed
+        self.assertEquals(contents.find("bacon"), -1)
+
+    # Check that lldb can append to a log file
+    def test_log_append(self):
+        # put something in our log file
+        with open(self.log_file, "w") as f:
+            f.write("bacon\n")
+
+        self.runCmd( "log enable -t -a -f '%s' lldb commands" % self.log_file)
+        self.runCmd("help log")
+        self.runCmd("log disable lldb")
+
+        self.assertTrue(os.path.isfile(self.log_file))
+        with open(self.log_file, "r") as f:
+            contents = f.read()
+
+        # check that it is still there
+        self.assertEquals(contents.find("bacon"), 0)