c2e96778e0
If you have an lldb-dap log file you'll almost always see a final
message like:
```
<--
Content-Length: 94
{
"body": {
"category": "stdout",
"output": "\u0000\u0000"
},
"event": "output",
"seq": 0,
"type": "event"
}
<--
Content-Length: 94
{
"body": {
"category": "stderr",
"output": "\u0000\u0000"
},
"event": "output",
"seq": 0,
"type": "event"
}
```
The OutputRedirect is always writing the `"\0"` byte as a final stdout
message during shutdown. Instead, I adjusted this to detect the sentinel
value and break out of the read loop as if we detected EOF.
---------
Co-authored-by: Pavel Labath <pavel@labath.sk>
43 lines
1.5 KiB
Python
43 lines
1.5 KiB
Python
"""
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Test lldb-dap output events
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"""
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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import lldbdap_testcase
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class TestDAP_output(lldbdap_testcase.DAPTestCaseBase):
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@skipIfWindows
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def test_output(self):
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"""
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Test output handling for the running process.
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"""
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program = self.getBuildArtifact("a.out")
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self.build_and_launch(
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program,
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exitCommands=[
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# Ensure that output produced by lldb itself is not consumed by the OutputRedirector.
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"?script print('out\\0\\0', end='\\r\\n', file=sys.stdout)",
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"?script print('err\\0\\0', end='\\r\\n', file=sys.stderr)",
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],
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)
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source = "main.c"
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lines = [line_number(source, "// breakpoint 1")]
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breakpoint_ids = self.set_source_breakpoints(source, lines)
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self.continue_to_breakpoints(breakpoint_ids)
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# Ensure partial messages are still sent.
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output = self.collect_stdout(timeout_secs=1.0, pattern="abcdef")
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self.assertTrue(output and len(output) > 0, "expect program stdout")
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self.continue_to_exit()
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output += self.get_stdout(timeout=lldbdap_testcase.DAPTestCaseBase.timeoutval)
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self.assertTrue(output and len(output) > 0, "expect program stdout")
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self.assertIn(
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"abcdefghi\r\nhello world\r\nfinally\0\0out\0\0\r\nerr\0\0",
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output,
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"full stdout not found in: " + repr(output),
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)
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