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https://github.com/Gericom/teak-llvm.git
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72ef113d40
Summary: It seems this was an unintended side-effect of D26698. AFAICT, these functions did return an empty string before that patch, and the patch contained code which attempted to ensure that, but those efforts were negated by ConstString::AsCString, which by default returns a nullptr even for empty strings. This patch: - fixes the GetOutput/Error methods to really return empty strings - adds and explicit test for that - removes a workaround in lldbtest.py, which was masking this problem from our other tests Reviewers: jingham, clayborg Subscribers: zturner, lldb-commits Differential Revision: https://reviews.llvm.org/D65739 llvm-svn: 368806
92 lines
3.1 KiB
Python
92 lines
3.1 KiB
Python
"""Test the SBCommandInterpreter APIs."""
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from __future__ import print_function
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import lldb
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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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class CommandInterpreterAPICase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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NO_DEBUG_INFO_TESTCASE = True
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Find the line number to break on inside main.cpp.
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self.line = line_number('main.c', 'Hello world.')
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@add_test_categories(['pyapi'])
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def test_with_process_launch_api(self):
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"""Test the SBCommandInterpreter APIs."""
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self.build()
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exe = self.getBuildArtifact("a.out")
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# Create a target by the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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# Retrieve the associated command interpreter from our debugger.
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ci = self.dbg.GetCommandInterpreter()
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self.assertTrue(ci, VALID_COMMAND_INTERPRETER)
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# Exercise some APIs....
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self.assertTrue(ci.HasCommands())
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self.assertTrue(ci.HasAliases())
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self.assertTrue(ci.HasAliasOptions())
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self.assertTrue(ci.CommandExists("breakpoint"))
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self.assertTrue(ci.CommandExists("target"))
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self.assertTrue(ci.CommandExists("platform"))
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self.assertTrue(ci.AliasExists("file"))
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self.assertTrue(ci.AliasExists("run"))
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self.assertTrue(ci.AliasExists("bt"))
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res = lldb.SBCommandReturnObject()
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ci.HandleCommand("breakpoint set -f main.c -l %d" % self.line, res)
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self.assertTrue(res.Succeeded())
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ci.HandleCommand("process launch", res)
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self.assertTrue(res.Succeeded())
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# Boundary conditions should not crash lldb!
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self.assertFalse(ci.CommandExists(None))
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self.assertFalse(ci.AliasExists(None))
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ci.HandleCommand(None, res)
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self.assertFalse(res.Succeeded())
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res.AppendMessage("Just appended a message.")
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res.AppendMessage(None)
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if self.TraceOn():
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print(res)
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process = ci.GetProcess()
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self.assertTrue(process)
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import lldbsuite.test.lldbutil as lldbutil
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if process.GetState() != lldb.eStateStopped:
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self.fail("Process should be in the 'stopped' state, "
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"instead the actual state is: '%s'" %
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lldbutil.state_type_to_str(process.GetState()))
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if self.TraceOn():
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lldbutil.print_stacktraces(process)
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@add_test_categories(['pyapi'])
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def test_command_output(self):
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"""Test command output handling."""
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ci = self.dbg.GetCommandInterpreter()
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self.assertTrue(ci, VALID_COMMAND_INTERPRETER)
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# Test that a command which produces no output returns "" instead of
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# None.
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res = lldb.SBCommandReturnObject()
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ci.HandleCommand("settings set use-color false", res)
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self.assertTrue(res.Succeeded())
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self.assertIsNotNone(res.GetOutput())
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self.assertEquals(res.GetOutput(), "")
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self.assertIsNotNone(res.GetError())
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self.assertEquals(res.GetError(), "")
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