1""" 2Test lldb-dap setBreakpoints request 3""" 4 5 6import dap_server 7from lldbsuite.test.decorators import * 8from lldbsuite.test.lldbtest import * 9from lldbsuite.test import lldbutil 10import lldbdap_testcase 11 12 13class TestDAP_step(lldbdap_testcase.DAPTestCaseBase): 14 @skipIfWindows 15 def test_step(self): 16 """ 17 Tests the stepping in/out/over in threads. 18 """ 19 program = self.getBuildArtifact("a.out") 20 self.build_and_launch(program) 21 source = "main.cpp" 22 # source_path = os.path.join(os.getcwd(), source) 23 breakpoint1_line = line_number(source, "// breakpoint 1") 24 lines = [breakpoint1_line] 25 # Set breakpoint in the thread function so we can step the threads 26 breakpoint_ids = self.set_source_breakpoints(source, lines) 27 self.assertEqual( 28 len(breakpoint_ids), len(lines), "expect correct number of breakpoints" 29 ) 30 self.continue_to_breakpoints(breakpoint_ids) 31 threads = self.dap_server.get_threads() 32 for thread in threads: 33 if "reason" in thread: 34 reason = thread["reason"] 35 if reason == "breakpoint": 36 # We have a thread that is stopped at our breakpoint. 37 # Get the value of "x" and get the source file and line. 38 # These will help us determine if we are stepping 39 # correctly. If we step a thread correctly we will verify 40 # the correct falue for x as it progresses through the 41 # program. 42 tid = thread["id"] 43 x1 = self.get_local_as_int("x", threadId=tid) 44 (src1, line1) = self.get_source_and_line(threadId=tid) 45 46 # Now step into the "recurse()" function call again and 47 # verify, using the new value of "x" and the source file 48 # and line if we stepped correctly 49 self.stepIn(threadId=tid, waitForStop=True) 50 x2 = self.get_local_as_int("x", threadId=tid) 51 (src2, line2) = self.get_source_and_line(threadId=tid) 52 self.assertEqual(x1, x2 + 1, "verify step in variable") 53 self.assertLess(line2, line1, "verify step in line") 54 self.assertEqual(src1, src2, "verify step in source") 55 56 # Now step out and verify 57 self.stepOut(threadId=tid, waitForStop=True) 58 x3 = self.get_local_as_int("x", threadId=tid) 59 (src3, line3) = self.get_source_and_line(threadId=tid) 60 self.assertEqual(x1, x3, "verify step out variable") 61 self.assertGreaterEqual(line3, line1, "verify step out line") 62 self.assertEqual(src1, src3, "verify step in source") 63 64 # Step over and verify 65 self.stepOver(threadId=tid, waitForStop=True) 66 x4 = self.get_local_as_int("x", threadId=tid) 67 (src4, line4) = self.get_source_and_line(threadId=tid) 68 self.assertEqual(x4, x3, "verify step over variable") 69 self.assertGreater(line4, line3, "verify step over line") 70 self.assertEqual(src1, src4, "verify step over source") 71 72 # Step a single assembly instruction. 73 # Unfortunately, there is no portable way to verify the correct 74 # stepping behavior here, because the generated assembly code 75 # depends highly on the compiler, its version, the operating 76 # system, and many more factors. 77 self.stepOver( 78 threadId=tid, waitForStop=True, granularity="instruction" 79 ) 80 self.stepIn( 81 threadId=tid, waitForStop=True, granularity="instruction" 82 ) 83 84 # only step one thread that is at the breakpoint and stop 85 break 86