c8fd130a2c
Currently most of the test files have a separate dwarf and a separate dsym test with almost identical content (only the build step is different). With adding dwo symbol file handling to the test suit it would increase this to a 3-way duplication. The purpose of this change is to eliminate this redundancy with generating 2 test case (one dwarf and one dsym) for each test function specified (dwo handling will be added at a later commit). Main design goals: * There should be no boilerplate code in each test file to support the multiple debug info in most of the tests (custom scenarios are acceptable in special cases) so adding a new test case is easier and we can't miss one of the debug info type. * In case of a test failure, the debug symbols used during the test run have to be cleanly visible from the output of dotest.py to make debugging easier both from build bot logs and from local test runs * Each test case should have a unique, fully qualified name so we can run exactly 1 test with "-f <test-case>.<test-function>" syntax * Test output should be grouped based on test files the same way as it happens now (displaying dwarf/dsym results separately isn't preferable) Proposed solution (main logic in lldbtest.py, rest of them are test cases fixed up for the new style): * Have only 1 test fuction in the test files what will run for all debug info separately and this test function should call just "self.build(...)" to build an inferior with the right debug info * When a class is created by python (the class object, not the class instance), we will generate a new test method for each debug info format in the test class with the name "<test-function>_<debug-info>" and remove the original test method. This way unittest2 see multiple test methods (1 for each debug info, pretty much as of now) and will handle the test selection and the failure reporting correctly (the debug info will be visible from the end of the test name) * Add new annotation @no_debug_info_test to disable the generation of multiple tests for each debug info format when the test don't have an inferior Differential revision: http://reviews.llvm.org/D13028 llvm-svn: 248883
210 lines
9.5 KiB
Python
210 lines
9.5 KiB
Python
"""
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Test lldb breakpoint command add/list/delete.
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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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from lldbtest import *
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import lldbutil
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class BreakpointCommandTestCase(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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@classmethod
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def classCleanup(cls):
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"""Cleanup the test byproduct of breakpoint_command_sequence(self)."""
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cls.RemoveTempFile("output.txt")
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cls.RemoveTempFile("output2.txt")
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@expectedFailureWindows("llvm.org/pr24528")
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def test(self):
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"""Test a sequence of breakpoint command add, list, and delete."""
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self.build()
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self.breakpoint_command_sequence()
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self.breakpoint_command_script_parameters ()
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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 inside main().
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self.line = line_number('main.c', '// Set break point at this line.')
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# disable "There is a running process, kill it and restart?" prompt
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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 breakpoint_command_sequence(self):
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"""Test a sequence of breakpoint command add, list, and delete."""
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exe = os.path.join(os.getcwd(), "a.out")
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self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
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# Add three breakpoints on the same line. The first time we don't specify the file,
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# since the default file is the one containing main:
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lldbutil.run_break_set_by_file_and_line (self, None, self.line, num_expected_locations=1, loc_exact=True)
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lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
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lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
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# Breakpoint 4 - set at the same location as breakpoint 1 to test setting breakpoint commands on two breakpoints at a time
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lldbutil.run_break_set_by_file_and_line (self, None, self.line, num_expected_locations=1, loc_exact=True)
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# Now add callbacks for the breakpoints just created.
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self.runCmd("breakpoint command add -s command -o 'frame variable --show-types --scope' 1 4")
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self.runCmd("breakpoint command add -s python -o 'here = open(\"output.txt\", \"w\"); print >> here, \"lldb\"; here.close()' 2")
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self.runCmd("breakpoint command add --python-function bktptcmd.function 3")
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# Check that the breakpoint commands are correctly set.
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# The breakpoint list now only contains breakpoint 1.
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self.expect("breakpoint list", "Breakpoints 1 & 2 created",
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substrs = ["2: file = 'main.c', line = %d, exact_match = 0, locations = 1" % self.line],
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patterns = ["1: file = '.*main.c', line = %d, exact_match = 0, locations = 1" % self.line] )
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self.expect("breakpoint list -f", "Breakpoints 1 & 2 created",
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substrs = ["2: file = 'main.c', line = %d, exact_match = 0, locations = 1" % self.line],
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patterns = ["1: file = '.*main.c', line = %d, exact_match = 0, locations = 1" % self.line,
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"1.1: .+at main.c:%d, .+unresolved, hit count = 0" % self.line,
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"2.1: .+at main.c:%d, .+unresolved, hit count = 0" % self.line])
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self.expect("breakpoint command list 1", "Breakpoint 1 command ok",
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substrs = ["Breakpoint commands:",
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"frame variable --show-types --scope"])
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self.expect("breakpoint command list 2", "Breakpoint 2 command ok",
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substrs = ["Breakpoint commands:",
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"here = open",
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"print >> here",
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"here.close()"])
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self.expect("breakpoint command list 3", "Breakpoint 3 command ok",
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substrs = ["Breakpoint commands:",
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"bktptcmd.function(frame, bp_loc, internal_dict)"])
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self.expect("breakpoint command list 4", "Breakpoint 4 command ok",
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substrs = ["Breakpoint commands:",
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"frame variable --show-types --scope"])
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self.runCmd("breakpoint delete 4")
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self.runCmd("command script import --allow-reload ./bktptcmd.py")
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# Next lets try some other breakpoint kinds. First break with a regular expression
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# and then specify only one file. The first time we should get two locations,
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# the second time only one:
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lldbutil.run_break_set_by_regexp (self, r"._MyFunction", num_expected_locations=2)
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lldbutil.run_break_set_by_regexp (self, r"._MyFunction", extra_options="-f a.c", num_expected_locations=1)
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lldbutil.run_break_set_by_regexp (self, r"._MyFunction", extra_options="-f a.c -f b.c", num_expected_locations=2)
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# Now try a source regex breakpoint:
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lldbutil.run_break_set_by_source_regexp (self, r"is about to return [12]0", extra_options="-f a.c -f b.c", num_expected_locations=2)
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lldbutil.run_break_set_by_source_regexp (self, r"is about to return [12]0", extra_options="-f a.c", num_expected_locations=1)
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# Run the program. Remove 'output.txt' if it exists.
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self.RemoveTempFile("output.txt")
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self.RemoveTempFile("output2.txt")
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self.runCmd("run", RUN_SUCCEEDED)
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# Check that the file 'output.txt' exists and contains the string "lldb".
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# The 'output.txt' file should now exist.
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self.assertTrue(os.path.isfile("output.txt"),
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"'output.txt' exists due to breakpoint command for breakpoint 2.")
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self.assertTrue(os.path.isfile("output2.txt"),
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"'output2.txt' exists due to breakpoint command for breakpoint 3.")
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# Read the output file produced by running the program.
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with open('output.txt', 'r') as f:
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output = f.read()
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self.expect(output, "File 'output.txt' and the content matches", exe=False,
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startstr = "lldb")
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with open('output2.txt', 'r') as f:
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output = f.read()
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self.expect(output, "File 'output2.txt' and the content matches", exe=False,
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startstr = "lldb")
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# Finish the program.
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self.runCmd("process continue")
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# Remove the breakpoint command associated with breakpoint 1.
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self.runCmd("breakpoint command delete 1")
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# Remove breakpoint 2.
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self.runCmd("breakpoint delete 2")
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self.expect("breakpoint command list 1",
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startstr = "Breakpoint 1 does not have an associated command.")
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self.expect("breakpoint command list 2", error=True,
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startstr = "error: '2' is not a currently valid breakpoint id.")
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# The breakpoint list now only contains breakpoint 1.
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self.expect("breakpoint list -f", "Breakpoint 1 exists",
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patterns = ["1: file = '.*main.c', line = %d, exact_match = 0, locations = 1, resolved = 1" %
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self.line,
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"hit count = 1"])
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# Not breakpoint 2.
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self.expect("breakpoint list -f", "No more breakpoint 2", matching=False,
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substrs = ["2: file = 'main.c', line = %d, exact_match = 0, locations = 1, resolved = 1" %
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self.line])
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# Run the program again, with breakpoint 1 remaining.
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self.runCmd("run", RUN_SUCCEEDED)
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# We should be stopped again due to breakpoint 1.
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# The stop reason of the thread should be breakpoint.
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self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
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substrs = ['stopped',
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'stop reason = breakpoint'])
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# The breakpoint should have a hit count of 2.
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self.expect("breakpoint list -f", BREAKPOINT_HIT_TWICE,
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substrs = ['resolved, hit count = 2'])
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def breakpoint_command_script_parameters (self):
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"""Test that the frame and breakpoint location are being properly passed to the script breakpoint command function."""
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exe = os.path.join(os.getcwd(), "a.out")
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self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
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# Add a breakpoint.
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lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
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# Now add callbacks for the breakpoints just created.
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self.runCmd("breakpoint command add -s python -o 'here = open(\"output-2.txt\", \"w\"); print >> here, frame; print >> here, bp_loc; here.close()' 1")
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# Remove 'output-2.txt' if it already exists.
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if (os.path.exists('output-2.txt')):
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os.remove ('output-2.txt')
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# Run program, hit breakpoint, and hopefully write out new version of 'output-2.txt'
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self.runCmd ("run", RUN_SUCCEEDED)
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# Check that the file 'output.txt' exists and contains the string "lldb".
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# The 'output-2.txt' file should now exist.
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self.assertTrue(os.path.isfile("output-2.txt"),
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"'output-2.txt' exists due to breakpoint command for breakpoint 1.")
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# Read the output file produced by running the program.
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with open('output-2.txt', 'r') as f:
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output = f.read()
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self.expect (output, "File 'output-2.txt' and the content matches", exe=False,
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startstr = "frame #0:",
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patterns = ["1.* where = .*main .* resolved, hit count = 1" ])
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# Now remove 'output-2.txt'
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os.remove ('output-2.txt')
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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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