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"""
Test the 'memory write' command.
"""
import lldb
import lldbsuite.test.lldbutil as lldbutil
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
class MemoryWriteTestCase(TestBase):
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to break inside main().
self.line = line_number("main.c", "// Set break point at this line.")
def build_run_stop(self):
self.build()
exe = self.getBuildArtifact("a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# Break in main() after the variables are assigned values.
lldbutil.run_break_set_by_file_and_line(
self, "main.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", "stop reason = breakpoint"],
)
# The breakpoint should have a hit count of 1.
lldbutil.check_breakpoint(self, bpno=1, expected_hit_count=1)
@no_debug_info_test
def test_memory_write(self):
"""Test the 'memory write' command for writing values and file contents."""
self.build_run_stop()
self.expect(
"memory read --format c --size 7 --count 1 `&my_string`",
substrs=["abcdefg"],
)
self.expect("memory write --format c --size 7 `&my_string` ABCDEFG")
self.expect(
"memory read --format c --size 7 --count 1 `&my_string`",
substrs=["ABCDEFG"],
)
self.expect(
"memory write --infile file.txt --size 7 `&my_string`",
substrs=["7 bytes were written"],
)
self.expect(
"memory read --format c --size 7 --count 1 `&my_string`",
substrs=["abcdefg"],
)
self.expect(
"memory write --infile file.txt --size 7 `&my_string` ABCDEFG",
error=True,
substrs=[
"error: memory write takes only a destination address when writing file contents"
],
)
self.expect(
"memory write --infile file.txt --size 7",
error=True,
substrs=[
"error: memory write takes a destination address when writing file contents"
],
)
@no_debug_info_test
def test_memory_write_command_usage_syntax(self):
"""Test that 'memory write' command usage syntax shows it does not take values when writing file contents."""
self.expect(
"help memory write",
substrs=[
"memory write [-f <format>] [-s <byte-size>] <address> <value> [<value> [...]]",
"memory write -i <filename> [-s <byte-size>] [-o <offset>] <address>",
],
)
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