vendor/lldb/lldb-release_39-r276489

1 files changed, 68 insertions, 0 deletions

diff --git a/packages/Python/lldbsuite/test/functionalities/nested_alias/TestNestedAlias.py b/packages/Python/lldbsuite/test/functionalities/nested_alias/TestNestedAlias.py
new file mode 100644
index 000000000000..6a74ddb727df
--- /dev/null
+++ b/packages/Python/lldbsuite/test/functionalities/nested_alias/TestNestedAlias.py
@@ -0,0 +1,68 @@
+"""
+Test that an alias can reference other aliases without crashing.
+"""
+
+from __future__ import print_function
+
+
+
+import os, time
+import re
+import lldb
+from lldbsuite.test.lldbtest import *
+import lldbsuite.test.lldbutil as lldbutil
+
+class NestedAliasTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        # Find the line number to break inside main().
+        self.line = line_number('main.cpp', '// break here')
+
+    def test_nested_alias(self):
+        """Test that an alias can reference other aliases without crashing."""
+        self.build()
+        exe = os.path.join(os.getcwd(), "a.out")
+        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
+
+        # Break in main() aftre the variables are assigned values.
+        lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True)
+
+        self.runCmd("run", RUN_SUCCEEDED)
+
+        # The stop reason of the thread should be breakpoint.
+        self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
+            substrs = ['stopped', 'stop reason = breakpoint'])
+
+        # The breakpoint should have a hit count of 1.
+        self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
+            substrs = [' resolved, hit count = 1'])
+
+        # This is the function to remove the custom aliases in order to have a
+        # clean slate for the next test case.
+        def cleanup():
+            self.runCmd('command unalias read', check=False)
+            self.runCmd('command unalias rd', check=False)
+            self.runCmd('command unalias fo', check=False)
+            self.runCmd('command unalias foself', check=False)
+
+        # Execute the cleanup function during test case tear down.
+        self.addTearDownHook(cleanup)
+
+        self.runCmd('command alias read memory read -f A')
+        self.runCmd('command alias rd read -c 3')
+        
+        self.expect('memory read -f A -c 3 `&my_ptr[0]`', substrs=['deadbeef', 'main.cpp:', 'feedbeef'])
+        self.expect('rd `&my_ptr[0]`', substrs=['deadbeef', 'main.cpp:', 'feedbeef'])
+
+        self.expect('memory read -f A -c 3 `&my_ptr[0]`', substrs=['deadfeed'], matching=False)
+        self.expect('rd `&my_ptr[0]`', substrs=['deadfeed'], matching=False)
+
+        self.runCmd('command alias fo frame variable -O --')
+        self.runCmd('command alias foself fo self')
+        
+        self.expect('help foself', substrs=['--show-all-children', '--raw-output'], matching=False)
+        self.expect('help foself', substrs=['Show variables for the current', 'stack frame.'], matching=True)