318cbcef91
- set auto-confirm to false when running TestExprs (avoid hang when using API) - set prompt-on-quit to false in test helper (avoid timeout when using lldb CLI) llvm-svn: 173485
236 lines
8.5 KiB
Python
236 lines
8.5 KiB
Python
"""
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Test many basic expression commands and SBFrame.EvaluateExpression() API.
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Test cases:
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o test_many_expr_commands:
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Test many basic expression commands.
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o test_evaluate_expression_python:
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Use Python APIs (SBFrame.EvaluateExpression()) to evaluate expressions.
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o test_expr_commands_can_handle_quotes:
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Throw some expression commands with quotes at lldb.
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"""
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import os, time
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import unittest2
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import lldb
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import lldbutil
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from lldbtest import *
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class BasicExprCommandsTestCase(TestBase):
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mydir = os.path.join("expression_command", "test")
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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 for main.c.
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self.line = line_number('main.cpp',
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'// Please test many expressions while stopped at this line:')
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# Disable confirmation prompt to avoid infinite wait
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self.runCmd("settings set auto-confirm true")
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self.addTearDownHook(lambda: self.runCmd("settings clear auto-confirm"))
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def test_many_expr_commands(self):
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"""These basic expression commands should work as expected."""
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self.buildDefault()
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self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
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lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.line, num_expected_locations=1, loc_exact=False)
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self.runCmd("run", RUN_SUCCEEDED)
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self.expect("expression 2",
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patterns = ["\(int\) \$.* = 2"])
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# (int) $0 = 1
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self.expect("expression 2ull",
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patterns = ["\(unsigned long long\) \$.* = 2"])
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# (unsigned long long) $1 = 2
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self.expect("expression 2.234f",
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patterns = ["\(float\) \$.* = 2\.234"])
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# (float) $2 = 2.234
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self.expect("expression 2.234",
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patterns = ["\(double\) \$.* = 2\.234"])
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# (double) $3 = 2.234
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self.expect("expression 2+3",
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patterns = ["\(int\) \$.* = 5"])
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# (int) $4 = 5
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self.expect("expression argc",
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patterns = ["\(int\) \$.* = 1"])
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# (int) $5 = 1
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self.expect("expression argc + 22",
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patterns = ["\(int\) \$.* = 23"])
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# (int) $6 = 23
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self.expect("expression argv",
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patterns = ["\(const char \*\*\) \$.* = 0x"])
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# (const char *) $7 = ...
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self.expect("expression argv[0]",
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substrs = ["(const char *)",
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"a.out"])
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# (const char *) $8 = 0x... "/Volumes/data/lldb/svn/trunk/test/expression_command/test/a.out"
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@python_api_test
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def test_evaluate_expression_python(self):
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"""Test SBFrame.EvaluateExpression() API for evaluating an expression."""
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self.buildDefault()
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exe = os.path.join(os.getcwd(), "a.out")
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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# Create the breakpoint.
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filespec = lldb.SBFileSpec("main.cpp", False)
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breakpoint = target.BreakpointCreateByLocation(filespec, self.line)
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self.assertTrue(breakpoint, VALID_BREAKPOINT)
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# Verify the breakpoint just created.
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self.expect(str(breakpoint), BREAKPOINT_CREATED, exe=False,
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substrs = ['main.cpp',
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str(self.line)])
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# Launch the process, and do not stop at the entry point.
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# Pass 'X Y Z' as the args, which makes argc == 4.
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process = target.LaunchSimple(['X', 'Y', 'Z'], None, os.getcwd())
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if not process:
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self.fail("SBTarget.LaunchProcess() failed")
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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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# The stop reason of the thread should be breakpoint.
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thread = process.GetThreadAtIndex(0)
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if thread.GetStopReason() != lldb.eStopReasonBreakpoint:
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from lldbutil import stop_reason_to_str
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self.fail(STOPPED_DUE_TO_BREAKPOINT_WITH_STOP_REASON_AS %
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stop_reason_to_str(thread.GetStopReason()))
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# The filename of frame #0 should be 'main.cpp' and function is main.
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self.expect(lldbutil.get_filenames(thread)[0],
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"Break correctly at main.cpp", exe=False,
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startstr = "main.cpp")
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self.expect(lldbutil.get_function_names(thread)[0],
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"Break correctly at main()", exe=False,
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startstr = "main")
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# We should be stopped on the breakpoint with a hit count of 1.
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self.assertTrue(breakpoint.GetHitCount() == 1, BREAKPOINT_HIT_ONCE)
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#
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# Use Python API to evaluate expressions while stopped in a stack frame.
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#
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frame = thread.GetFrameAtIndex(0)
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val = frame.EvaluateExpression("2.234")
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self.expect(val.GetValue(), "2.345 evaluated correctly", exe=False,
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startstr = "2.234")
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self.expect(val.GetTypeName(), "2.345 evaluated correctly", exe=False,
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startstr = "double")
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self.DebugSBValue(val)
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val = frame.EvaluateExpression("argc")
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self.expect(val.GetValue(), "Argc evaluated correctly", exe=False,
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startstr = "4")
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self.DebugSBValue(val)
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val = frame.EvaluateExpression("*argv[1]")
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self.expect(val.GetValue(), "Argv[1] evaluated correctly", exe=False,
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startstr = "'X'")
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self.DebugSBValue(val)
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val = frame.EvaluateExpression("*argv[2]")
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self.expect(val.GetValue(), "Argv[2] evaluated correctly", exe=False,
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startstr = "'Y'")
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self.DebugSBValue(val)
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val = frame.EvaluateExpression("*argv[3]")
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self.expect(val.GetValue(), "Argv[3] evaluated correctly", exe=False,
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startstr = "'Z'")
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self.DebugSBValue(val)
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callee_break = target.BreakpointCreateByName ("a_function_to_call", None)
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self.assertTrue(callee_break.GetNumLocations() > 0)
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# Make sure ignoring breakpoints works from the command line:
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self.expect("expression -i true -- a_function_to_call()",
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substrs = ['(int) $', ' 1'])
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self.assertTrue (callee_break.GetHitCount() == 1)
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# Now try ignoring breakpoints using the SB API's:
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options = lldb.SBExpressionOptions()
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options.SetIgnoreBreakpoints(True)
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value = frame.EvaluateExpression('a_function_to_call()', options)
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self.assertTrue (value.IsValid())
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self.assertTrue (value.GetValueAsSigned(0) == 2)
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self.assertTrue (callee_break.GetHitCount() == 2)
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# rdar://problem/8686536
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# CommandInterpreter::HandleCommand is stripping \'s from input for WantsRawCommand commands
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def test_expr_commands_can_handle_quotes(self):
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"""Throw some expression commands with quotes at lldb."""
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self.buildDefault()
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self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
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lldbutil.run_break_set_by_file_and_line(self, "main.cpp", self.line, num_expected_locations=1,loc_exact=False)
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self.runCmd("run", RUN_SUCCEEDED)
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# runCmd: expression 'a'
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# output: (char) $0 = 'a'
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self.expect("expression 'a'",
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substrs = ['(char) $',
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"'a'"])
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# runCmd: expression (int) printf ("\n\n\tHello there!\n")
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# output: (int) $1 = 16
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self.expect(r'''expression (int) printf ("\n\n\tHello there!\n")''',
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substrs = ['(int) $',
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'16'])
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# runCmd: expression (int) printf("\t\x68\n")
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# output: (int) $2 = 3
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self.expect(r'''expression (int) printf("\t\x68\n")''',
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substrs = ['(int) $',
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'3'])
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# runCmd: expression (int) printf("\"\n")
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# output: (int) $3 = 2
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self.expect(r'''expression (int) printf("\"\n")''',
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substrs = ['(int) $',
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'2'])
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# runCmd: expression (int) printf("'\n")
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# output: (int) $4 = 2
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self.expect(r'''expression (int) printf("'\n")''',
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substrs = ['(int) $',
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'2'])
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# runCmd: command alias print_hi expression (int) printf ("\n\tHi!\n")
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# output:
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self.runCmd(r'''command alias print_hi expression (int) printf ("\n\tHi!\n")''')
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# This fails currently.
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self.expect('print_hi',
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substrs = ['(int) $',
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'6'])
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if __name__ == '__main__':
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import atexit
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lldb.SBDebugger.Initialize()
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atexit.register(lambda: lldb.SBDebugger.Terminate())
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unittest2.main()
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