[lldb] Add a test for capturing stdout/stderr from Python commands

[JDevlieghere]

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[llvmbot]

@llvm/pr-subscribers-lldb

Author: Jonas Devlieghere (JDevlieghere)

Changes

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Full diff: https://github.com/llvm/llvm-project/pull/168138.diff

1 Files Affected:

• (added) lldb/test/API/python_api/command_script_output/TestCommandScriptOutput.py (+47)

diff --git a/lldb/test/API/python_api/command_script_output/TestCommandScriptOutput.py b/lldb/test/API/python_api/command_script_output/TestCommandScriptOutput.py new file mode 100644 index 0000000000000..abe0eec1cb42c --- /dev/null +++ b/lldb/test/API/python_api/command_script_output/TestCommandScriptOutput.py @@ -0,0 +1,47 @@ +""" +Test that HandleCommand captures stdout and stderr from script commands. +""" + +import lldb +from lldbsuite.test.decorators import * +from lldbsuite.test.lldbtest import * + + +class CommandScriptOutputTestCase(TestBase): + NO_DEBUG_INFO_TESTCASE = True + + def test_script_command_stdout_stderr(self): + """Test that HandleCommand captures stdout and stderr from script commands.""" + ci = self.dbg.GetCommandInterpreter() + self.assertTrue(ci, VALID_COMMAND_INTERPRETER) + + res = lldb.SBCommandReturnObject() + + # Execute a script command that writes to stdout. + ci.HandleCommand("script print('Hello stdout')", res) + self.assertTrue(res.Succeeded()) + self.assertIn("Hello stdout", res.GetOutput()) + + # Execute a script command that writes to stderr. + ci.HandleCommand("script import sys; sys.stderr.write('Hello stderr\\n')", res) + self.assertTrue(res.Succeeded()) + self.assertIn("Hello stderr", res.GetOutput()) + + # Execute a script command that writes to both stdout and stderr. + ci.HandleCommand( + "script import sys; print('Output line'); sys.stderr.write('Error line\\n')", + res, + ) + self.assertTrue(res.Succeeded()) + self.assertIn("Output line", res.GetOutput()) + self.assertIn("Error line", res.GetOutput()) + + # Test that multiple print statements are captured. + ci.HandleCommand( + "script print('Line 1'); print('Line 2'); print('Line 3')", res + ) + self.assertTrue(res.Succeeded()) + output = res.GetOutput() + self.assertIn("Line 1", output) + self.assertIn("Line 2", output) + self.assertIn("Line 3", output)