bee500becb
This is a first pass at removing some lldb-mi tests which have been xfailed and unmaintained for a while. We have open PRs for most of these tests already. I've opened up the following additional PRs: llvm.org/PR36739 - lldb-mi driver exits properly llvm.org/PR36740 - lldb-mi -gdb-set and -gdb-show llvm.org/PR36741 - lldb-mi -symbol-xxx The motivation here is to address timeout and pexpect-related issues in the test suite. This was discussed on lldb-dev in the thread: "increase timeout for tests?". After this change, the lldb-mi tests seem to be in better health (on Darwin at least). I consistently get: $ ./bin/llvm-dotest -p TestMi =================== Test Result Summary =================== Test Methods: 101 Reruns: 0 Success: 88 Expected Failure: 0 Failure: 0 Error: 0 Exceptional Exit: 0 Unexpected Success: 0 Skip: 13 Timeout: 0 Expected Timeout: 0 llvm-svn: 327552
170 lines
6.5 KiB
Python
170 lines
6.5 KiB
Python
"""
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Test that the lldb-mi driver understands MI command syntax.
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"""
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from __future__ import print_function
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import lldbmi_testcase
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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from functools import reduce
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class MiSyntaxTestCase(lldbmi_testcase.MiTestCaseBase):
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mydir = TestBase.compute_mydir(__file__)
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@skipIfWindows # llvm.org/pr24452: Get lldb-mi tests working on Windows
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@skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
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@skipIfRemote # We do not currently support remote debugging via the MI.
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def test_lldbmi_tokens(self):
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"""Test that 'lldb-mi --interpreter' prints command tokens."""
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self.spawnLldbMi(args=None)
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# Load executable
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self.runCmd("000-file-exec-and-symbols %s" % self.myexe)
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self.expect("000\^done")
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# Run to main
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self.runCmd("100000001-break-insert -f main")
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self.expect("100000001\^done,bkpt={number=\"1\"")
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self.runCmd("2-exec-run")
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self.expect("2\^running")
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self.expect("\*stopped,reason=\"breakpoint-hit\"")
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# Exit
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self.runCmd("0000000000000000000003-exec-continue")
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self.expect("0000000000000000000003\^running")
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self.expect("\*stopped,reason=\"exited-normally\"")
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@skipIfWindows # llvm.org/pr24452: Get lldb-mi tests working on Windows
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@skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
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@skipIfRemote # We do not currently support remote debugging via the MI.
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def test_lldbmi_specialchars(self):
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"""Test that 'lldb-mi --interpreter' handles complicated strings."""
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# Create an alias for myexe
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complicated_myexe = "C--mpl-x file's`s @#$%^&*()_+-={}[]| name"
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os.symlink(self.myexe, complicated_myexe)
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self.addTearDownHook(lambda: os.unlink(complicated_myexe))
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self.spawnLldbMi(args="\"%s\"" % complicated_myexe)
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# Test that the executable was loaded
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self.expect(
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"-file-exec-and-symbols \"%s\"" %
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complicated_myexe, exactly=True)
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self.expect("\^done")
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# Check that it was loaded correctly
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self.runCmd("-break-insert -f main")
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self.expect("\^done,bkpt={number=\"1\"")
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self.runCmd("-exec-run")
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self.expect("\^running")
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self.expect("\*stopped,reason=\"breakpoint-hit\"")
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@skipIfWindows # llvm.org/pr24452: Get lldb-mi tests working on Windows
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@skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
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@skipIfRemote # We do not currently support remote debugging via the MI.
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def test_lldbmi_output_grammar(self):
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"""Test that 'lldb-mi --interpreter' uses standard output syntax."""
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self.spawnLldbMi(args=None)
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self.child.setecho(False)
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# Run all commands simultaneously
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self.runCmd("-unknown-command")
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self.runCmd("-interpreter-exec command help")
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self.runCmd("-file-exec-and-symbols %s" % self.myexe)
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self.runCmd("-break-insert -f main")
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self.runCmd("-gdb-set target-async off")
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self.runCmd("-exec-run")
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self.runCmd("-gdb-set target-async on")
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self.runCmd("-exec-continue")
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self.runCmd("-gdb-exit")
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# Test that the program's output matches to the following pattern:
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# ( async-record | stream-record )* [ result-record ] "(gdb)" nl
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async_record = "^[0-9]*(\*|\+|=).+?\n" # 1
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stream_record = "^(~|@|&).+?\n" # 2
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result_record = "^[0-9]*\^.+?\n" # 3
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prompt = "^\(gdb\)\r\n" # 4
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command = "^\r\n" # 5 (it looks like empty line for pexpect)
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error = "^.+?\n" # 6
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import pexpect # 7 (EOF)
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all_patterns = [
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async_record,
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stream_record,
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result_record,
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prompt,
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command,
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error,
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pexpect.EOF]
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# Routines to get a bit-mask for the specified list of patterns
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def get_bit(pattern): return all_patterns.index(pattern)
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def get_mask(pattern): return 1 << get_bit(pattern)
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def or_op(x, y): return x | y
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def get_state(*args): return reduce(or_op, map(get_mask, args))
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next_state = get_state(command)
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while True:
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it = self.expect(all_patterns)
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matched_pattern = all_patterns[it]
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# Check that state is acceptable
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if not (next_state & get_mask(matched_pattern)):
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self.fail(
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"error: inconsistent pattern '%s' for state %#x (matched string: %s)" %
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(repr(matched_pattern), next_state, self.child.after))
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elif matched_pattern == async_record or matched_pattern == stream_record:
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next_state = get_state(
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async_record,
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stream_record,
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result_record,
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prompt)
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elif matched_pattern == result_record:
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# FIXME lldb-mi prints async-records out of turn
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# ```
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# ^done
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# (gdb)
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# ^running
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# =thread-group-started,id="i1",pid="13875"
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# (gdb)
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# ```
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# Therefore to pass that test I changed the grammar's rule:
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# next_state = get_state(prompt)
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# to:
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next_state = get_state(async_record, prompt)
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elif matched_pattern == prompt:
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# FIXME lldb-mi prints the prompt out of turn
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# ```
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# ^done
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# (gdb)
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# ^running
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# (gdb)
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# (gdb)
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# ```
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# Therefore to pass that test I changed the grammar's rule:
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# next_state = get_state(async_record, stream_record, result_record, command, pexpect.EOF)
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# to:
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next_state = get_state(
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async_record,
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stream_record,
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result_record,
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prompt,
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command,
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pexpect.EOF)
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elif matched_pattern == command:
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next_state = get_state(
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async_record,
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stream_record,
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result_record)
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elif matched_pattern == pexpect.EOF:
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break
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else:
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self.fail("error: pexpect returned an unknown state")
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