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"""
Test lldb-dap setBreakpoints request
"""
import dap_server
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
import lldbdap_testcase
class TestDAP_step(lldbdap_testcase.DAPTestCaseBase):
@skipIfWindows
def test_step(self):
"""
Tests the stepping in/out/over in threads.
"""
program = self.getBuildArtifact("a.out")
self.build_and_launch(program)
source = "main.cpp"
# source_path = os.path.join(os.getcwd(), source)
breakpoint1_line = line_number(source, "// breakpoint 1")
lines = [breakpoint1_line]
# Set breakpoint in the thread function so we can step the threads
breakpoint_ids = self.set_source_breakpoints(source, lines)
self.assertEqual(
len(breakpoint_ids), len(lines), "expect correct number of breakpoints"
)
self.continue_to_breakpoints(breakpoint_ids)
threads = self.dap_server.get_threads()
for thread in threads:
if "reason" in thread:
reason = thread["reason"]
if reason == "breakpoint":
# We have a thread that is stopped at our breakpoint.
# Get the value of "x" and get the source file and line.
# These will help us determine if we are stepping
# correctly. If we step a thread correctly we will verify
# the correct falue for x as it progresses through the
# program.
tid = thread["id"]
x1 = self.get_local_as_int("x", threadId=tid)
(src1, line1) = self.get_source_and_line(threadId=tid)
# Now step into the "recurse()" function call again and
# verify, using the new value of "x" and the source file
# and line if we stepped correctly
self.stepIn(threadId=tid, waitForStop=True)
x2 = self.get_local_as_int("x", threadId=tid)
(src2, line2) = self.get_source_and_line(threadId=tid)
self.assertEqual(x1, x2 + 1, "verify step in variable")
self.assertLess(line2, line1, "verify step in line")
self.assertEqual(src1, src2, "verify step in source")
# Now step out and verify
self.stepOut(threadId=tid, waitForStop=True)
x3 = self.get_local_as_int("x", threadId=tid)
(src3, line3) = self.get_source_and_line(threadId=tid)
self.assertEqual(x1, x3, "verify step out variable")
self.assertGreaterEqual(line3, line1, "verify step out line")
self.assertEqual(src1, src3, "verify step in source")
# Step over and verify
self.stepOver(threadId=tid, waitForStop=True)
x4 = self.get_local_as_int("x", threadId=tid)
(src4, line4) = self.get_source_and_line(threadId=tid)
self.assertEqual(x4, x3, "verify step over variable")
self.assertGreater(line4, line3, "verify step over line")
self.assertEqual(src1, src4, "verify step over source")
# Step a single assembly instruction.
# Unfortunately, there is no portable way to verify the correct
# stepping behavior here, because the generated assembly code
# depends highly on the compiler, its version, the operating
# system, and many more factors.
self.stepOver(
threadId=tid, waitForStop=True, granularity="instruction"
)
self.stepIn(
threadId=tid, waitForStop=True, granularity="instruction"
)
# only step one thread that is at the breakpoint and stop
break
def test_step_over_inlined_function(self):
"""
Test stepping over when the program counter is in another file.
"""
program = self.getBuildArtifact("a.out")
self.build_and_launch(program)
source = "main.cpp"
breakpoint_lines = [line_number(source, "// breakpoint 2")]
step_over_pos = line_number(source, "// position_after_step_over")
breakpoint_ids = self.set_source_breakpoints(source, breakpoint_lines)
self.assertEqual(
len(breakpoint_ids),
len(breakpoint_lines),
"expect correct number of breakpoints.",
)
self.continue_to_breakpoints(breakpoint_ids)
thread_id = self.dap_server.get_thread_id()
self.stepOver(thread_id)
levels = 1
frames = self.get_stackFrames(thread_id, 0, levels)
self.assertEqual(len(frames), levels, "expect current number of frame levels.")
top_frame = frames[0]
self.assertEqual(
top_frame["source"]["name"], source, "expect we are in the same file."
)
self.assertTrue(
top_frame["source"]["path"].endswith(source),
f"expect path ending with '{source}'.",
)
self.assertEqual(
top_frame["line"],
step_over_pos,
f"expect step_over on line {step_over_pos}",
)
self.continue_to_exit()
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