1 files changed, 49 insertions, 1 deletions
diff --git a/packages/Python/lldbsuite/test/help/TestHelp.py b/packages/Python/lldbsuite/test/help/TestHelp.py
index f51b6aa59f12..f4e9faff0edf 100644
--- a/packages/Python/lldbsuite/test/help/TestHelp.py
+++ b/packages/Python/lldbsuite/test/help/TestHelp.py
@@ -10,7 +10,9 @@ from __future__ import print_function
 
 import os, time
 import lldb
+from lldbsuite.test.decorators import *
 from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
 
 class HelpCommandTestCase(TestBase):
 
@@ -80,7 +82,7 @@ class HelpCommandTestCase(TestBase):
     def test_help_version(self):
         """Test 'help version' and 'version' commands."""
         self.expect("help version",
-            substrs = ['Show version of LLDB debugger.'])
+            substrs = ['Show the LLDB debugger version.'])
         version_str = self.version_number_string()
         import re
         match = re.match('[0-9]+', version_str)
@@ -163,3 +165,49 @@ class HelpCommandTestCase(TestBase):
             substrs = ['The following subcommands are supported:'],
             patterns = ['expression +--',
                         'variable +--'])
+
+    @no_debug_info_test
+    def test_help_po_hides_options(self):
+        """Test that 'help po' does not show all the options for expression"""
+        self.expect("help po",
+            substrs = ['--show-all-children', '--object-description'], matching=False)
+
+    @no_debug_info_test
+    def test_help_run_hides_options(self):
+        """Test that 'help run' does not show all the options for process launch"""
+        self.expect("help run",
+            substrs = ['--arch', '--environment'], matching=False)
+
+    @no_debug_info_test
+    def test_help_next_shows_options(self):
+        """Test that 'help next' shows all the options for thread step-over"""
+        self.expect("help next",
+            substrs = ['--python-class','--run-mode'], matching=True)
+
+    @no_debug_info_test
+    def test_help_provides_alternatives(self):
+        """Test that help on commands that don't exist provides information on additional help avenues"""
+        self.expect("help thisisnotadebuggercommand",
+            substrs = ["'thisisnotadebuggercommand' is not a known command.",
+            "Try 'help' to see a current list of commands.",
+            "Try 'apropos thisisnotadebuggercommand' for a list of related commands.",
+            "Try 'type lookup thisisnotadebuggercommand' for information on types, methods, functions, modules, etc."], error=True)
+
+        self.expect("help process thisisnotadebuggercommand",
+            substrs = ["'process thisisnotadebuggercommand' is not a known command.",
+            "Try 'help' to see a current list of commands.",
+            "Try 'apropos thisisnotadebuggercommand' for a list of related commands.",
+            "Try 'type lookup thisisnotadebuggercommand' for information on types, methods, functions, modules, etc."])
+
+    @no_debug_info_test
+    def test_custom_help_alias(self):
+        """Test that aliases pick up custom help text."""
+        def cleanup():
+            self.runCmd('command unalias afriendlyalias', check=False)
+            self.runCmd('command unalias averyfriendlyalias', check=False)
+        
+        self.addTearDownHook(cleanup)
+        self.runCmd('command alias --help "I am a friendly alias" -- afriendlyalias help')
+        self.expect("help afriendlyalias", matching=True, substrs = ['I am a friendly alias'])
+        self.runCmd('command alias --long-help "I am a very friendly alias" -- averyfriendlyalias help')
+        self.expect("help averyfriendlyalias", matching=True, substrs = ['I am a very friendly alias'])