1 files changed, 40 insertions, 0 deletions
diff --git a/lldb/test/API/functionalities/data-formatter/refpointer-recursion/TestDataFormatterRefPtrRecursion.py b/lldb/test/API/functionalities/data-formatter/refpointer-recursion/TestDataFormatterRefPtrRecursion.py
new file mode 100644
index 000000000000..1dc37c64f367
--- /dev/null
+++ b/lldb/test/API/functionalities/data-formatter/refpointer-recursion/TestDataFormatterRefPtrRecursion.py
@@ -0,0 +1,40 @@
+"""
+Test that ValueObjectPrinter does not cause an infinite loop when a reference to a struct that contains a pointer to itself is printed.
+"""
+
+
+
+import lldb
+from lldbsuite.test.lldbtest import *
+import lldbsuite.test.lldbutil as lldbutil
+
+
+class DataFormatterRefPtrRecursionTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        # Find the line number to break at.
+        self.line = line_number('main.cpp', '// Set break point at this line.')
+
+    def test_with_run_command(self):
+        """Test that ValueObjectPrinter does not cause an infinite loop when a reference to a struct that contains a pointer to itself is printed."""
+        self.build()
+        self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET)
+
+        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'])
+
+        self.expect("frame variable foo", substrs=[])
+        self.expect("frame variable foo --ptr-depth=1", substrs=['ID = 1'])
+        self.expect("frame variable foo --ptr-depth=2", substrs=['ID = 1'])
+        self.expect("frame variable foo --ptr-depth=3", substrs=['ID = 1'])