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authorDimitry Andric <dim@FreeBSD.org>2019-08-20 18:01:57 +0000
committerDimitry Andric <dim@FreeBSD.org>2019-08-20 18:01:57 +0000
commit88c643b6fec27eec436c8d138fee6346e92337d6 (patch)
tree82cd13b2f3cde1c9e5f79689ba4e6ba67694843f /packages/Python/lldbsuite/test/source-manager/TestSourceManager.py
parent94994d372d014ce4c8758b9605d63fae651bd8aa (diff)
Notes
Diffstat (limited to 'packages/Python/lldbsuite/test/source-manager/TestSourceManager.py')
-rw-r--r--packages/Python/lldbsuite/test/source-manager/TestSourceManager.py257
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diff --git a/packages/Python/lldbsuite/test/source-manager/TestSourceManager.py b/packages/Python/lldbsuite/test/source-manager/TestSourceManager.py
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index ea822decdb6f..000000000000
--- a/packages/Python/lldbsuite/test/source-manager/TestSourceManager.py
+++ /dev/null
@@ -1,257 +0,0 @@
-"""
-Test lldb core component: SourceManager.
-
-Test cases:
-
-o test_display_source_python:
- Test display of source using the SBSourceManager API.
-o test_modify_source_file_while_debugging:
- Test the caching mechanism of the source manager.
-"""
-
-from __future__ import print_function
-import re
-
-import lldb
-from lldbsuite.test.decorators import *
-from lldbsuite.test.lldbtest import *
-from lldbsuite.test import lldbutil
-
-
-def ansi_underline_surround_regex(inner_regex_text):
- # return re.compile(r"\[4m%s\[0m" % inner_regex_text)
- return "4.+\033\\[4m%s\033\\[0m" % inner_regex_text
-
-def ansi_color_surround_regex(inner_regex_text):
- return "\033\\[3[0-7]m%s\033\\[0m" % inner_regex_text
-
-class SourceManagerTestCase(TestBase):
-
- mydir = TestBase.compute_mydir(__file__)
-
- NO_DEBUG_INFO_TESTCASE = True
-
- def setUp(self):
- # Call super's setUp().
- TestBase.setUp(self)
- # Find the line number to break inside main().
- self.file = self.getBuildArtifact("main-copy.c")
- self.line = line_number("main.c", '// Set break point at this line.')
-
- def get_expected_stop_column_number(self):
- """Return the 1-based column number of the first non-whitespace
- character in the breakpoint source line."""
- stop_line = get_line(self.file, self.line)
- # The number of spaces that must be skipped to get to the first non-
- # whitespace character --- where we expect the debugger breakpoint
- # column to be --- is equal to the number of characters that get
- # stripped off the front when we lstrip it, plus one to specify
- # the character column after the initial whitespace.
- return len(stop_line) - len(stop_line.lstrip()) + 1
-
- def do_display_source_python_api(self, use_color, needle_regex, highlight_source=False):
- self.build()
- exe = self.getBuildArtifact("a.out")
- self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
-
- target = self.dbg.CreateTarget(exe)
- self.assertTrue(target, VALID_TARGET)
-
- # Launch the process, and do not stop at the entry point.
- args = None
- envp = None
- process = target.LaunchSimple(
- args, envp, self.get_process_working_directory())
- self.assertIsNotNone(process)
-
- #
- # Exercise Python APIs to display source lines.
- #
-
- # Setup whether we should use ansi escape sequences, including color
- # and styles such as underline.
- self.dbg.SetUseColor(use_color)
- # Disable syntax highlighting if needed.
-
- self.runCmd("settings set highlight-source " + str(highlight_source).lower())
-
- filespec = lldb.SBFileSpec(self.file, False)
- source_mgr = self.dbg.GetSourceManager()
- # Use a string stream as the destination.
- stream = lldb.SBStream()
- column = self.get_expected_stop_column_number()
- context_before = 2
- context_after = 2
- current_line_prefix = "=>"
- source_mgr.DisplaySourceLinesWithLineNumbersAndColumn(
- filespec, self.line, column, context_before, context_after,
- current_line_prefix, stream)
-
- # 2
- # 3 int main(int argc, char const *argv[]) {
- # => 4 printf("Hello world.\n"); // Set break point at this line.
- # 5 return 0;
- # 6 }
- self.expect(stream.GetData(), "Source code displayed correctly:\n" + stream.GetData(),
- exe=False,
- patterns=['=> %d.*Hello world' % self.line,
- needle_regex])
-
- # Boundary condition testings for SBStream(). LLDB should not crash!
- stream.Print(None)
- stream.RedirectToFile(None, True)
-
- @add_test_categories(['pyapi'])
- def test_display_source_python_dumb_terminal(self):
- """Test display of source using the SBSourceManager API, using a
- dumb terminal and thus no color support (the default)."""
- use_color = False
- self.do_display_source_python_api(use_color, r"\s+\^")
-
- @add_test_categories(['pyapi'])
- def test_display_source_python_ansi_terminal(self):
- """Test display of source using the SBSourceManager API, using a
- dumb terminal and thus no color support (the default)."""
- use_color = True
- underline_regex = ansi_underline_surround_regex(r"printf")
- self.do_display_source_python_api(use_color, underline_regex)
-
- @add_test_categories(['pyapi'])
- def test_display_source_python_ansi_terminal_syntax_highlighting(self):
- """Test display of source using the SBSourceManager API and check for
- the syntax highlighted output"""
- use_color = True
- syntax_highlighting = True;
-
- # Just pick 'int' as something that should be colored.
- color_regex = ansi_color_surround_regex("int")
- self.do_display_source_python_api(use_color, color_regex, syntax_highlighting)
-
- # Same for 'char'.
- color_regex = ansi_color_surround_regex("char")
- self.do_display_source_python_api(use_color, color_regex, syntax_highlighting)
-
- # Test that we didn't color unrelated identifiers.
- self.do_display_source_python_api(use_color, r" main\(", syntax_highlighting)
- self.do_display_source_python_api(use_color, r"\);", syntax_highlighting)
-
- def test_move_and_then_display_source(self):
- """Test that target.source-map settings work by moving main.c to hidden/main.c."""
- self.build()
- exe = self.getBuildArtifact("a.out")
- self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
-
- # Move main.c to hidden/main.c.
- hidden = self.getBuildArtifact("hidden")
- lldbutil.mkdir_p(hidden)
- main_c_hidden = os.path.join(hidden, "main-copy.c")
- os.rename(self.file, main_c_hidden)
-
- if self.TraceOn():
- system([["ls"]])
- system([["ls", "hidden"]])
-
- # Set source remapping with invalid replace path and verify we get an
- # error
- self.expect(
- "settings set target.source-map /a/b/c/d/e /q/r/s/t/u",
- error=True,
- substrs=['''error: the replacement path doesn't exist: "/q/r/s/t/u"'''])
-
- # Set target.source-map settings.
- self.runCmd("settings set target.source-map %s %s" %
- (self.getBuildDir(), hidden))
- # And verify that the settings work.
- self.expect("settings show target.source-map",
- substrs=[self.getBuildDir(), hidden])
-
- # Display main() and verify that the source mapping has been kicked in.
- self.expect("source list -n main", SOURCE_DISPLAYED_CORRECTLY,
- substrs=['Hello world'])
-
- def test_modify_source_file_while_debugging(self):
- """Modify a source file while debugging the executable."""
- self.build()
- exe = self.getBuildArtifact("a.out")
- self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
-
- lldbutil.run_break_set_by_file_and_line(
- self, "main-copy.c", self.line, num_expected_locations=1, loc_exact=True)
-
- self.runCmd("run", RUN_SUCCEEDED)
-
- # The stop reason of the thread should be breakpoint.
- self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
- substrs=['stopped',
- 'main-copy.c:%d' % self.line,
- 'stop reason = breakpoint'])
-
- # Display some source code.
- self.expect(
- "source list -f main-copy.c -l %d" %
- self.line,
- SOURCE_DISPLAYED_CORRECTLY,
- substrs=['Hello world'])
-
- # The '-b' option shows the line table locations from the debug information
- # that indicates valid places to set source level breakpoints.
-
- # The file to display is implicit in this case.
- self.runCmd("source list -l %d -c 3 -b" % self.line)
- output = self.res.GetOutput().splitlines()[0]
-
- # If the breakpoint set command succeeded, we should expect a positive number
- # of breakpoints for the current line, i.e., self.line.
- import re
- m = re.search('^\[(\d+)\].*// Set break point at this line.', output)
- if not m:
- self.fail("Fail to display source level breakpoints")
- self.assertTrue(int(m.group(1)) > 0)
-
- # Read the main.c file content.
- with io.open(self.file, 'r', newline='\n') as f:
- original_content = f.read()
- if self.TraceOn():
- print("original content:", original_content)
-
- # Modify the in-memory copy of the original source code.
- new_content = original_content.replace('Hello world', 'Hello lldb', 1)
-
- # Modify the source code file.
- with io.open(self.file, 'w', newline='\n') as f:
- time.sleep(1)
- f.write(new_content)
- if self.TraceOn():
- print("new content:", new_content)
- print(
- "os.path.getmtime() after writing new content:",
- os.path.getmtime(self.file))
-
- # Display the source code again. We should see the updated line.
- self.expect(
- "source list -f main-copy.c -l %d" %
- self.line,
- SOURCE_DISPLAYED_CORRECTLY,
- substrs=['Hello lldb'])
-
- def test_set_breakpoint_with_absolute_path(self):
- self.build()
- hidden = self.getBuildArtifact("hidden")
- lldbutil.mkdir_p(hidden)
- self.runCmd("settings set target.source-map %s %s" %
- (self.getBuildDir(), hidden))
-
- exe = self.getBuildArtifact("a.out")
- main = os.path.join(self.getBuildDir(), "hidden", "main-copy.c")
- self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
-
- lldbutil.run_break_set_by_file_and_line(
- self, main, self.line, num_expected_locations=1, loc_exact=False)
-
- self.runCmd("run", RUN_SUCCEEDED)
-
- # The stop reason of the thread should be breakpoint.
- self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
- substrs=['stopped',
- 'main-copy.c:%d' % self.line,
- 'stop reason = breakpoint'])