| """ |
| Abstract base class of basic types provides a generic type tester method. |
| """ |
| |
| import os, time |
| import re |
| import lldb |
| from lldbtest import * |
| |
| def Msg(var, val): |
| return "'frame variable %s' matches the output (from compiled code): %s" % (var, val) |
| |
| class GenericTester(TestBase): |
| |
| # This is the pattern by design to match the " var = 'value'" output from |
| # printf() stmts (see basic_type.cpp). |
| pattern = re.compile(" (\*?a[^=]*) = '([^=]*)'$") |
| |
| def generic_type_tester(self, atoms, quotedDisplay=False): |
| """Test that variables with basic types are displayed correctly.""" |
| |
| # First, capture the golden output emitted by the oracle, i.e., the |
| # series of printf statements. |
| go = system("./a.out") |
| # This golden list contains a list of (variable, value) pairs extracted |
| # from the golden output. |
| gl = [] |
| |
| # Scan the golden output line by line, looking for the pattern: |
| # |
| # variable = 'value' |
| # |
| # Filter out the following lines, for the time being: |
| # |
| # 'a_ref = ...' |
| # 'a_class_ref.m_a = ...' |
| # 'a_class_ref.m_b = ...' |
| # 'a_struct_ref.a = ...' |
| # 'a_struct_ref.b = ...' |
| # 'a_union_zero_ref.a = ...' |
| # 'a_union_nonzero_ref.u.a = ...' |
| # |
| # rdar://problem/8471016 frame variable a_ref should display the referenced value as well |
| # rdar://problem/8470987 frame variable a_class_ref.m_a does not work |
| notnow = set(['a_ref', |
| 'a_class_ref.m_a', 'a_class_ref.m_b', |
| 'a_struct_ref.a', 'a_struct_ref.b', |
| 'a_union_zero_ref.a', 'a_union_nonzero_ref.u.a']) |
| for line in go.split(os.linesep): |
| match = self.pattern.search(line) |
| if match: |
| var, val = match.group(1), match.group(2) |
| if var in notnow: |
| continue |
| gl.append((var, val)) |
| #print "golden list:", gl |
| |
| # Bring the program to the point where we can issue a series of |
| # 'frame variable' command. |
| self.runCmd("file a.out", CURRENT_EXECUTABLE_SET) |
| self.runCmd("breakpoint set --name Puts") |
| self.runCmd("run", RUN_SUCCEEDED) |
| self.runCmd("thread step-out", STEP_OUT_SUCCEEDED) |
| |
| #self.runCmd("frame variable") |
| |
| # Now iterate through the golden list, comparing against the output from |
| # 'frame variable var'. |
| for var, val in gl: |
| self.runCmd("frame variable %s" % var) |
| output = self.res.GetOutput() |
| |
| # The input type is in a canonical form as a set named atoms. |
| # The display type string must conatin each and every element. |
| # |
| # Example: |
| # runCmd: frame variable a_array_bounded[0] |
| # output: (char) a_array_bounded[0] = 'a' |
| # |
| dt = re.match("^\((.*)\)", output).group(1) |
| |
| # Expect the display type string to contain each and every atoms. |
| self.expect(dt, |
| "Display type: '%s' must contain the type atoms: '%s'" % |
| (dt, atoms), |
| exe=False, |
| substrs = list(atoms)) |
| |
| # The (var, val) pair must match, too. |
| nv = (" %s = '%s'" if quotedDisplay else " %s = %s") % (var, val) |
| self.expect(output, Msg(var, val), exe=False, |
| substrs = [nv]) |
| |
| def generic_type_expr_tester(self, atoms, quotedDisplay=False): |
| """Test that variable expressions with basic types are evaluated correctly.""" |
| |
| # First, capture the golden output emitted by the oracle, i.e., the |
| # series of printf statements. |
| go = system("./a.out") |
| # This golden list contains a list of (variable, value) pairs extracted |
| # from the golden output. |
| gl = [] |
| |
| # Scan the golden output line by line, looking for the pattern: |
| # |
| # variable = 'value' |
| # |
| for line in go.split(os.linesep): |
| match = self.pattern.search(line) |
| if match: |
| var, val = match.group(1), match.group(2) |
| gl.append((var, val)) |
| #print "golden list:", gl |
| |
| # Bring the program to the point where we can issue a series of |
| # 'frame variable' command. |
| self.runCmd("file a.out", CURRENT_EXECUTABLE_SET) |
| self.runCmd("breakpoint set --name Puts") |
| self.runCmd("run", RUN_SUCCEEDED) |
| self.runCmd("thread step-out", STEP_OUT_SUCCEEDED) |
| |
| #self.runCmd("frame variable") |
| |
| # Now iterate through the golden list, comparing against the output from |
| # 'frame variable var'. |
| for var, val in gl: |
| self.runCmd("expr %s" % var) |
| output = self.res.GetOutput() |
| |
| # The input type is in a canonical form as a set named atoms. |
| # The display type string must conatin each and every element. |
| # |
| # Example: |
| # runCmd: expr a |
| # output: $0 = (double) 1100.12 |
| # |
| try: |
| dt = re.match("^\$[0-9]+ = \((.*)\)", output).group(1) |
| except: |
| self.fail("Data type from expression parser is parsed correctly") |
| |
| # Expect the display type string to contain each and every atoms. |
| self.expect(dt, |
| "Display type: '%s' must contain the type atoms: '%s'" % |
| (dt, atoms), |
| exe=False, |
| substrs = list(atoms)) |
| |
| # The val part must match, too. |
| valPart = ("'%s'" if quotedDisplay else "%s") % val |
| self.expect(output, Msg(var, val), exe=False, |
| substrs = [valPart]) |