1 files changed, 56 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/functionalities/command_regex/TestCommandRegex.py b/packages/Python/lldbsuite/test/functionalities/command_regex/TestCommandRegex.py
new file mode 100644
index 000000000000..2c48efa863b4
--- /dev/null
+++ b/packages/Python/lldbsuite/test/functionalities/command_regex/TestCommandRegex.py
@@ -0,0 +1,56 @@
+"""
+Test lldb 'commands regex' command which allows the user to create a regular expression command.
+"""
+
+from __future__ import print_function
+
+
+
+import os
+import lldb
+from lldbsuite.test.lldbtest import *
+
+class CommandRegexTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @expectedFailureHostWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @no_debug_info_test
+    def test_command_regex(self):
+        """Test a simple scenario of 'command regex' invocation and subsequent use."""
+        import pexpect
+        prompt = "(lldb) "
+        regex_prompt = "Enter one of more sed substitution commands in the form: 's/<regex>/<subst>/'.\r\nTerminate the substitution list with an empty line.\r\n"
+        regex_prompt1 = "\r\n"
+
+        child = pexpect.spawn('%s %s' % (lldbtest_config.lldbExec, self.lldbOption))
+        # Turn on logging for what the child sends back.
+        if self.TraceOn():
+            child.logfile_read = sys.stdout
+        # So that the spawned lldb session gets shutdown durng teardown.
+        self.child = child
+
+        # Substitute 'Help!' for 'help' using the 'commands regex' mechanism.
+        child.expect_exact(prompt)
+        child.sendline("command regex 'Help__'")
+        child.expect_exact(regex_prompt)
+        child.sendline('s/^$/help/')
+        child.expect_exact(regex_prompt1)
+        child.sendline('')
+        child.expect_exact(prompt)
+        # Help!
+        child.sendline('Help__')
+        # If we see the familiar 'help' output, the test is done.
+        child.expect('Debugger commands:')
+        # Try and incorrectly remove "Help__" using "command unalias" and verify we fail
+        child.sendline('command unalias Help__')
+        child.expect_exact("error: 'Help__' is not an alias, it is a debugger command which can be removed using the 'command delete' command")
+        child.expect_exact(prompt)
+        
+        # Delete the regex command using "command delete"
+        child.sendline('command delete Help__')
+        child.expect_exact(prompt)
+        # Verify the command was removed
+        child.sendline('Help__')
+        child.expect_exact("error: 'Help__' is not a valid command")
+        child.expect_exact(prompt)