Add a test case to check logging of command processing.
Currently this test case works fine run by itself, but fails when
run in the entire test suite; Johnny requested that I check it in
so that he can look at it.

llvm-svn: 124510
diff --git a/lldb/test/logging/TestLogging.py b/lldb/test/logging/TestLogging.py
new file mode 100644
index 0000000..2c4276c
--- /dev/null
+++ b/lldb/test/logging/TestLogging.py
@@ -0,0 +1,93 @@
+"""
+Test lldb logging.
+"""
+
+import os, time
+import unittest2
+import lldb
+from lldbtest import *
+
+class LogTestCase(TestBase):
+
+    mydir = "logging"
+
+    @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
+    def test_with_dsym (self):
+        self.buildDsym ()
+        self.command_log_tests ()
+
+    def test_with_dwarf (self):
+        self.buildDwarf ()
+        self.command_log_tests ()
+
+    def command_log_tests (self):
+        exe = os.path.join (os.getcwd(), "a.out")
+        self.expect("file " + exe,
+                    patterns = [ "Current executable set to .*a.out" ])
+
+        log_file = os.path.join (os.getcwd(), "lldb-commands-log.txt")
+
+        if (os.path.exists (log_file)):
+            os.remove (log_file)
+
+        self.runCmd ("log enable lldb commands -f " + log_file)
+        
+        self.runCmd ("commands alias bp breakpoint")
+                     
+        self.runCmd ("bp set -n main")
+
+        self.runCmd ("bp l")
+
+        expected_log_lines = [
+            "com.apple.main-thread Processing command: commands alias bp breakpoint\n",
+            "com.apple.main-thread HandleCommand, cmd_obj : 'commands alias'\n",
+            "com.apple.main-thread HandleCommand, revised_command_line: 'commands alias bp breakpoint'\n",
+            "com.apple.main-thread HandleCommand, wants_raw_input:'True'\n",
+            "com.apple.main-thread HandleCommand, command line after removing command name(s): 'bp breakpoint'\n",
+            "\n",
+            "com.apple.main-thread Processing command: bp set -n main\n",
+            "com.apple.main-thread HandleCommand, cmd_obj : 'breakpoint set'\n",
+            "com.apple.main-thread HandleCommand, revised_command_line: 'breakpoint set -n main'\n",
+            "com.apple.main-thread HandleCommand, wants_raw_input:'False'\n",
+            "com.apple.main-thread HandleCommand, command line after removing command name(s): '-n main'\n",
+            "\n",
+            "com.apple.main-thread Processing command: bp l\n",
+            "com.apple.main-thread HandleCommand, cmd_obj : 'breakpoint list'\n",
+            "com.apple.main-thread HandleCommand, revised_command_line: 'breakpoint l'\n",
+            "com.apple.main-thread HandleCommand, wants_raw_input:'False'\n",
+            "com.apple.main-thread HandleCommand, command line after removing command name(s): ''\n",
+            "\n"
+            ]
+
+        self.assertTrue (os.path.isfile (log_file))
+
+        idx = 0
+        end = len (expected_log_lines)
+        f = open (log_file)
+        log_lines = f.readlines()
+        f.close ()
+        os.remove (log_file)
+
+        err_msg = ""
+        success = True
+
+        if len (log_lines) != len (expected_log_lines):
+            success = False
+            err_msg = "Wrong number of lines in log file; expected: " + repr (len (expected_log_lines)) + " found: " + repr(len (log_lines))
+        else:
+            for line1, line2 in zip (log_lines, expected_log_lines):
+                if line1 != line2:
+                    success = False
+                    err_msg = "Expected '" + line2 + "'; Found '" + line1 + "'"
+                    break
+
+        if not success:
+            self.fail (err_msg)
+
+
+if __name__ == '__main__':
+    import atexit
+    lldb.SBDebugger.Initialize()
+    atexit.register(lambda: lldb.SBDebugger.Terminate())
+    unittest2.main()
+