Merge commit '1c73376be820' from apple/stable/20200108 into swift/release/5.3

Author: git apple-llvm automerger

lldb/packages/Python/lldbsuite/test/lldbtest.py

@@ -2399,9 +2399,7 @@ def expect_expr(
             self.assertEqual(error_msg, eval_result.GetError().GetCString())
             return
 
-        if not eval_result.GetError().Success():
-            self.assertTrue(eval_result.GetError().Success(),
-                "Unexpected failure with msg: " + eval_result.GetError().GetCString())
+        self.assertSuccess(eval_result.GetError())
 
         if result_type:
             self.assertEqual(result_type, eval_result.GetDisplayTypeName())
@@ -2453,6 +2451,13 @@ def run_platform_command(self, cmd):
         err = platform.Run(shell_command)
         return (err, shell_command.GetStatus(), shell_command.GetOutput())
 
+    """Assert that an lldb.SBError is in the "success" state."""
+    def assertSuccess(self, obj, msg=None):
+        if not obj.Success():
+            error = obj.GetCString()
+            self.fail(self._formatMessage(msg,
+                "'{}' is not success".format(error)))
+
     # =================================================
     # Misc. helper methods for debugging test execution
     # =================================================

lldb/test/API/commands/expression/call-restarts/TestCallThatRestarts.py

@@ -52,10 +52,7 @@ def call_function(self):
                                       'Stop here in main.', self.main_source_spec)
 
         # Make sure the SIGCHLD behavior is pass/no-stop/no-notify:
-        return_obj = lldb.SBCommandReturnObject()
-        self.dbg.GetCommandInterpreter().HandleCommand(
-            "process handle SIGCHLD -s 0 -p 1 -n 0", return_obj)
-        self.assertTrue(return_obj.Succeeded(), "Set SIGCHLD to pass, no-stop")
+        self.runCmd("process handle SIGCHLD -s 0 -p 1 -n 0")
 
         # The sigchld_no variable should be 0 at this point.
         self.sigchld_no = target.FindFirstGlobalVariable("sigchld_no")
@@ -107,11 +104,7 @@ def call_function(self):
 
         # Now set the signal to print but not stop and make sure that calling
         # still works:
-        self.dbg.GetCommandInterpreter().HandleCommand(
-            "process handle SIGCHLD -s 0 -p 1 -n 1", return_obj)
-        self.assertTrue(
-            return_obj.Succeeded(),
-            "Set SIGCHLD to pass, no-stop, notify")
+        self.runCmd("process handle SIGCHLD -s 0 -p 1 -n 1")
 
         value = frame.EvaluateExpression(
             "call_me (%d)" %
@@ -135,29 +128,20 @@ def call_function(self):
         # Okay, now set UnwindOnError to true, and then make the signal behavior to stop
         # and see that now we do stop at the signal point:
 
-        self.dbg.GetCommandInterpreter().HandleCommand(
-            "process handle SIGCHLD -s 1 -p 1 -n 1", return_obj)
-        self.assertTrue(
-            return_obj.Succeeded(),
-            "Set SIGCHLD to pass, stop, notify")
+        self.runCmd("process handle SIGCHLD -s 1 -p 1 -n 1")
 
         value = frame.EvaluateExpression(
             "call_me (%d)" %
             (num_sigchld), options)
-        self.assertTrue(
-            value.IsValid() and value.GetError().Success() == False)
+        self.assertTrue(value.IsValid())
+        self.assertFalse(value.GetError().Success())
 
         # Set signal handling back to no-stop, and continue and we should end
         # up back in out starting frame:
-        self.dbg.GetCommandInterpreter().HandleCommand(
-            "process handle SIGCHLD -s 0 -p 1 -n 1", return_obj)
-        self.assertTrue(
-            return_obj.Succeeded(),
-            "Set SIGCHLD to pass, no-stop, notify")
+        self.runCmd("process handle SIGCHLD -s 0 -p 1 -n 1")
 
         error = process.Continue()
-        self.assertTrue(
-            error.Success(),
+        self.assertSuccess(error,
             "Continuing after stopping for signal succeeds.")
 
         frame = self.thread.GetFrameAtIndex(0)

lldb/test/API/commands/expression/context-object-objc/TestContextObjectObjc.py

@@ -44,13 +44,13 @@ def test_context_object_objc(self):
         # Test retrieving of an objcClass's property through the self pointer
         value = obj_val.EvaluateExpression("self.property")
         self.assertTrue(value.IsValid())
-        self.assertTrue(value.GetError().Success())
+        self.assertSuccess(value.GetError())
         self.assertEqual(value.GetValueAsSigned(), 2222)
 
         # Test objcClass's methods evaluation through the self pointer
         value = obj_val.EvaluateExpression("[self method]")
         self.assertTrue(value.IsValid())
-        self.assertTrue(value.GetError().Success())
+        self.assertSuccess(value.GetError())
         self.assertEqual(value.GetValueAsSigned(), 3333)
 
         # Test if we can use a computation result reference object correctly
@@ -63,12 +63,12 @@ def test_context_object_objc(self):
         # Test an expression evaluation on it
         value = obj_val.EvaluateExpression("1")
         self.assertTrue(value.IsValid())
-        self.assertTrue(value.GetError().Success())
+        self.assertSuccess(value.GetError())
 
         # Test retrieving of a field on it
         value = obj_val.EvaluateExpression("field")
         self.assertTrue(value.IsValid())
-        self.assertTrue(value.GetError().Success())
+        self.assertSuccess(value.GetError())
         self.assertEqual(value.GetValueAsSigned(), 1111)
 
     def setUp(self):

lldb/test/API/commands/expression/context-object/TestContextObject.py

@@ -32,19 +32,19 @@ def test_context_object(self):
         # Test retrieveing of a field (not a local with the same name)
         value = obj_val.EvaluateExpression("field")
         self.assertTrue(value.IsValid())
-        self.assertTrue(value.GetError().Success())
+        self.assertSuccess(value.GetError())
         self.assertEqual(value.GetValueAsSigned(), 1111)
 
         # Test functions evaluation
         value = obj_val.EvaluateExpression("function()")
         self.assertTrue(value.IsValid())
-        self.assertTrue(value.GetError().Success())
+        self.assertSuccess(value.GetError())
         self.assertEqual(value.GetValueAsSigned(), 2222)
 
         # Test that we retrieve the right global
         value = obj_val.EvaluateExpression("global.field")
         self.assertTrue(value.IsValid())
-        self.assertTrue(value.GetError().Success())
+        self.assertSuccess(value.GetError())
         self.assertEqual(value.GetValueAsSigned(), 1111)
 
         #
@@ -57,7 +57,7 @@ def test_context_object(self):
         # Test retrieveing of a field
         value = obj_val.EvaluateExpression("field_int")
         self.assertTrue(value.IsValid())
-        self.assertTrue(value.GetError().Success())
+        self.assertSuccess(value.GetError())
         self.assertEqual(value.GetValueAsSigned(), 5555)
 
         #
@@ -87,7 +87,7 @@ def test_context_object(self):
         # Test retrieveing of an element's field
         value = obj_val.GetValueForExpressionPath("[7]").EvaluateExpression("field")
         self.assertTrue(value.IsValid())
-        self.assertTrue(value.GetError().Success())
+        self.assertSuccess(value.GetError())
         self.assertEqual(value.GetValueAsSigned(), 1111)
 
         #
@@ -105,7 +105,7 @@ def test_context_object(self):
         # Test retrieveing of a dereferenced object's field
         value = obj_val.Dereference().EvaluateExpression("field")
         self.assertTrue(value.IsValid())
-        self.assertTrue(value.GetError().Success())
+        self.assertSuccess(value.GetError())
         self.assertEqual(value.GetValueAsSigned(), 1111)
 
         #
@@ -135,7 +135,7 @@ def test_context_object(self):
         # Test retrieveing of a dereferenced object's field
         value = obj_val.Dereference().EvaluateExpression("field")
         self.assertTrue(value.IsValid())
-        self.assertTrue(value.GetError().Success())
+        self.assertSuccess(value.GetError())
         self.assertEqual(value.GetValueAsSigned(), 1111)
 
     def setUp(self):

lldb/test/API/commands/expression/dont_allow_jit/TestAllowJIT.py

@@ -58,7 +58,7 @@ def expr_options_test(self):
 
         # Now use the options:
         result = frame.EvaluateExpression("call_me(10)", options)
-        self.assertTrue(result.GetError().Success(), "expression succeeded")
+        self.assertSuccess(result.GetError())
         self.assertEqual(result.GetValueAsSigned(), 18, "got the right value.")
 
         # Now disallow JIT and make sure it fails:
@@ -77,6 +77,6 @@ def expr_options_test(self):
 
         # And again, make sure this works:
         result = frame.EvaluateExpression("call_me(10)", options)
-        self.assertTrue(result.GetError().Success(), "expression succeeded")
+        self.assertSuccess(result.GetError())
         self.assertEqual(result.GetValueAsSigned(), 18, "got the right value.")
 

lldb/test/API/commands/expression/options/TestExprOptions.py

@@ -46,14 +46,14 @@ def test_expr_options(self):
         # Make sure we can evaluate a C++11 expression.
         val = frame.EvaluateExpression('foo != nullptr')
         self.assertTrue(val.IsValid())
-        self.assertTrue(val.GetError().Success())
+        self.assertSuccess(val.GetError())
         self.DebugSBValue(val)
 
         # Make sure it still works if language is set to C++11:
         options.SetLanguage(lldb.eLanguageTypeC_plus_plus_11)
         val = frame.EvaluateExpression('foo != nullptr', options)
         self.assertTrue(val.IsValid())
-        self.assertTrue(val.GetError().Success())
+        self.assertSuccess(val.GetError())
         self.DebugSBValue(val)
 
         # Make sure it fails if language is set to C:
@@ -80,7 +80,7 @@ def test_expr_options_lang(self):
         options.SetLanguage(lldb.eLanguageTypeC_plus_plus_11)
         val = frame.EvaluateExpression('id == 0', options)
         self.assertTrue(val.IsValid())
-        self.assertTrue(val.GetError().Success())
+        self.assertSuccess(val.GetError())
         self.DebugSBValue(val)
 
         # Make sure we can't retrieve `id` variable if language is set to ObjC:

lldb/test/API/commands/expression/pr35310/TestExprsBug35310.py

@@ -23,16 +23,8 @@ def test_issue35310(self):
         """
         self.build()
 
-        (target, process, thread, bkpt) = lldbutil.run_to_source_breakpoint(self,
+        lldbutil.run_to_source_breakpoint(self,
                                           '// Break here', self.main_source_spec)
-        frame = thread.GetFrameAtIndex(0)
 
-        value = frame.EvaluateExpression("a.test_abi_tag()")
-        self.assertTrue(value.IsValid())
-        self.assertTrue(value.GetError().Success())
-        self.assertEqual(value.GetValueAsSigned(0), 1)
-
-        value = frame.EvaluateExpression("a.test_asm_name()")
-        self.assertTrue(value.IsValid())
-        self.assertTrue(value.GetError().Success())
-        self.assertEqual(value.GetValueAsSigned(0), 2)
+        self.expect_expr("a.test_abi_tag()", result_value='1')
+        self.expect_expr("a.test_asm_name()", result_value='2')

lldb/test/API/commands/expression/scoped_enums/TestScopedEnumType.py

@@ -23,15 +23,8 @@ def test(self):
         self.expect("expr f == Foo::FooBar",
                 substrs=['(bool) $0 = true'])
 
-        value = frame.EvaluateExpression("f == Foo::FooBar")
-        self.assertTrue(value.IsValid())
-        self.assertTrue(value.GetError().Success())
-        self.assertEqual(value.GetValueAsUnsigned(), 1)
-
-        value = frame.EvaluateExpression("b == BarBar")
-        self.assertTrue(value.IsValid())
-        self.assertTrue(value.GetError().Success())
-        self.assertEqual(value.GetValueAsUnsigned(), 1)
+        self.expect_expr("f == Foo::FooBar", result_value='true')
+        self.expect_expr("b == BarBar", result_value='true')
 
         ## b is not a Foo
         value = frame.EvaluateExpression("b == Foo::FooBar")

lldb/test/API/commands/expression/timeout/TestCallWithTimeout.py

@@ -58,7 +58,7 @@ def test(self):
         options.SetTimeoutInMicroSeconds(1000000)
         value = frame.EvaluateExpression("wait_a_while (1000)", options)
         self.assertTrue(value.IsValid())
-        self.assertTrue(value.GetError().Success())
+        self.assertSuccess(value.GetError())
 
         # Now do the same thingwith the command line command, and make sure it
         # works too.
@@ -76,4 +76,4 @@ def test(self):
         options.SetOneThreadTimeoutInMicroSeconds(500000)
         value = frame.EvaluateExpression("wait_a_while (1000)", options)
         self.assertTrue(value.IsValid())
-        self.assertTrue(value.GetError().Success())
+        self.assertSuccess(value.GetError())

lldb/test/API/commands/expression/unwind_expression/TestUnwindExpression.py

@@ -45,9 +45,7 @@ def test_conditional_bktp(self):
 
         main_frame = self.thread.GetFrameAtIndex(0)
         val = main_frame.EvaluateExpression("second_function(47)", options)
-        self.assertTrue(
-            val.GetError().Success(),
-            "We did complete the execution.")
+        self.assertSuccess(val.GetError(), "We did complete the execution.")
         self.assertEquals(47, val.GetValueAsSigned())
 
 
@@ -91,8 +89,8 @@ def do_unwind_test(self, thread, bkpt, timeout):
 
         # Now unwind the expression, and make sure we got back to where we
         # started.
-        error = thread.UnwindInnermostExpression()
-        self.assertTrue(error.Success(), "We succeeded in unwinding")
+        self.assertSuccess(thread.UnwindInnermostExpression(),
+                "We succeeded in unwinding")
 
         cur_frame = thread.GetFrameAtIndex(0)
         self.assertTrue(

lldb/test/API/commands/expression/weak_symbols/TestWeakSymbols.py

@@ -39,7 +39,7 @@ def run_weak_var_check (self, weak_varname, present):
         # the bug that expressions with no result currently return False for Success()...
         expr = "if (&" + weak_varname + " != NULL) { present_weak_int = 10; } else { present_weak_int = 20;}; 10"
         result = self.frame.EvaluateExpression(expr)
-        self.assertTrue(result.GetError().Success(), "absent_weak_int expr failed: %s"%(result.GetError().GetCString()))
+        self.assertSuccess(result.GetError(), "absent_weak_int expr failed")
         self.assertEqual(value.GetValueAsSigned(), correct_value, "Didn't change present_weak_int correctly.")
 
     def do_test(self):

lldb/test/API/commands/register/register/register_command/TestRegisters.py

@@ -241,12 +241,12 @@ def fp_special_purpose_register_read(self):
         error = lldb.SBError()
         reg_value_fstat_initial = value.GetValueAsUnsigned(error, 0)
 
-        self.assertTrue(error.Success(), "reading a value for fstat")
+        self.assertSuccess(error, "reading a value for fstat")
         value = currentFrame.FindValue("ftag", lldb.eValueTypeRegister)
         error = lldb.SBError()
         reg_value_ftag_initial = value.GetValueAsUnsigned(error, 0)
 
-        self.assertTrue(error.Success(), "reading a value for ftag")
+        self.assertSuccess(error, "reading a value for ftag")
         fstat_top_pointer_initial = (reg_value_fstat_initial & 0x3800) >> 11
 
         # Execute 'si' aka 'thread step-inst' instruction 5 times and with
@@ -298,7 +298,7 @@ def fp_register_write(self):
                 0, # launch flags
                 True, # stop at entry
                 error)
-        self.assertTrue(error.Success(), "Launch succeeds. Error is :" + str(error))
+        self.assertSuccess(error, "Launch succeeds")
 
         self.assertTrue(
             process.GetState() == lldb.eStateStopped,

lldb/test/API/python_api/hello_world/TestHelloWorld.py

@@ -140,7 +140,8 @@ def test_with_attach_to_process_with_name_api(self):
         target.ConnectRemote(listener, None, None, error)
 
         process = target.AttachToProcessWithName(listener, name, False, error)
-        self.assertTrue(error.Success() and process, PROCESS_IS_VALID)
+        self.assertSuccess(error)
+        self.assertTrue(process, PROCESS_IS_VALID)
 
         # Verify that after attach, our selected target indeed matches name.
         self.expect(