113 lines · python
1"""2Test lldb data formatter subsystem.3"""4 5import lldb6from lldbsuite.test.decorators import *7from lldbsuite.test.lldbtest import *8from lldbsuite.test import lldbutil9 10 11class DataFormatterSynthValueTestCase(TestBase):12 def setUp(self):13 # Call super's setUp().14 TestBase.setUp(self)15 # Find the line number to break at.16 self.line = line_number("main.cpp", "break here")17 18 @expectedFailureAll(bugnumber="llvm.org/pr50814", compiler="gcc")19 def test_with_run_command(self):20 """Test using Python synthetic children provider to provide a value."""21 self.build()22 self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET)23 24 lldbutil.run_break_set_by_file_and_line(25 self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True26 )27 28 self.runCmd("run", RUN_SUCCEEDED)29 30 # The stop reason of the thread should be breakpoint.31 self.expect(32 "thread list",33 STOPPED_DUE_TO_BREAKPOINT,34 substrs=["stopped", "stop reason = breakpoint"],35 )36 37 # This is the function to remove the custom formats in order to have a38 # clean slate for the next test case.39 def cleanup():40 self.runCmd("type format clear", check=False)41 self.runCmd("type summary clear", check=False)42 self.runCmd("type filter clear", check=False)43 self.runCmd("type synth clear", check=False)44 45 # Execute the cleanup function during test case tear down.46 self.addTearDownHook(cleanup)47 48 x = self.frame().FindVariable("x")49 x.SetPreferSyntheticValue(True)50 y = self.frame().FindVariable("y")51 y.SetPreferSyntheticValue(True)52 z = self.frame().FindVariable("z")53 z.SetPreferSyntheticValue(True)54 q = self.frame().FindVariable("q")55 z.SetPreferSyntheticValue(True)56 57 x_val = x.GetValueAsUnsigned58 y_val = y.GetValueAsUnsigned59 z_val = z.GetValueAsUnsigned60 q_val = q.GetValueAsUnsigned61 62 if self.TraceOn():63 print(64 "x_val = %s; y_val = %s; z_val = %s; q_val = %s"65 % (x_val(), y_val(), z_val(), q_val())66 )67 68 self.assertNotEqual(x_val(), 3, "x == 3 before synthetics")69 self.assertNotEqual(y_val(), 4, "y == 4 before synthetics")70 self.assertNotEqual(z_val(), 7, "z == 7 before synthetics")71 self.assertNotEqual(q_val(), 8, "q == 8 before synthetics")72 73 # now set up the synth74 self.runCmd("script from myIntSynthProvider import *")75 self.runCmd("type synth add -l myIntSynthProvider myInt")76 self.runCmd("type synth add -l myArraySynthProvider myArray")77 self.runCmd("type synth add -l myIntSynthProvider myIntAndStuff")78 79 if self.TraceOn():80 print(81 "x_val = %s; y_val = %s; z_val = %s; q_val = %s"82 % (x_val(), y_val(), z_val(), q_val())83 )84 85 self.assertEqual(x_val(), 3, "x != 3 after synthetics")86 self.assertEqual(y_val(), 4, "y != 4 after synthetics")87 self.assertEqual(z_val(), 7, "z != 7 after synthetics")88 self.assertEqual(q_val(), 8, "q != 8 after synthetics")89 90 self.expect("frame variable x", substrs=["3"])91 self.expect("frame variable x", substrs=["theValue = 3"], matching=False)92 self.expect("frame variable q", substrs=["8"])93 self.expect("frame variable q", substrs=["theValue = 8"], matching=False)94 95 # check that an aptly defined synthetic provider does not affect96 # one-lining97 if not self.isAArch64Windows():98 self.expect(99 "expression struct Struct { myInt theInt{12}; }; Struct()",100 substrs=["(theInt = 12)"],101 )102 103 # check that we can use a synthetic value in a summary104 self.runCmd("type summary add hasAnInt -s ${var.theInt}")105 hi = self.frame().FindVariable("hi")106 self.assertEqual(hi.GetSummary(), "42")107 108 ma = self.frame().FindVariable("ma")109 self.assertTrue(ma.IsValid())110 self.assertEqual(ma.GetNumChildren(15), 15)111 self.assertEqual(ma.GetNumChildren(16), 16)112 self.assertEqual(ma.GetNumChildren(17), 16)113