vendor/lldb/lldb-trunk-r256945

1 files changed, 114 insertions, 0 deletions

diff --git a/packages/Python/lldbsuite/test/lang/objc/objc-property/TestObjCProperty.py b/packages/Python/lldbsuite/test/lang/objc/objc-property/TestObjCProperty.py
new file mode 100644
index 000000000000..c22a1f1ad532
--- /dev/null
+++ b/packages/Python/lldbsuite/test/lang/objc/objc-property/TestObjCProperty.py
@@ -0,0 +1,114 @@
+"""
+Use lldb Python API to verify that expression evaluation for property references uses the correct getters and setters
+"""
+
+from __future__ import print_function
+
+
+
+import os, time
+import re
+import lldb
+import lldbsuite.test.lldbutil as lldbutil
+from lldbsuite.test.lldbtest import *
+
+class ObjCPropertyTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    def setUp(self):
+        # Call super's setUp().                                                                                                           
+        TestBase.setUp(self)
+
+        # Find the line number to break for main.c.                                                                                       
+        self.source_name = 'main.m'
+
+    @skipUnlessDarwin
+    @add_test_categories(['pyapi'])
+    def test_objc_properties(self):
+        """Test that expr uses the correct property getters and setters"""
+        if self.getArchitecture() == 'i386':
+            self.skipTest("requires modern objc runtime")
+
+        self.build()
+        exe = os.path.join(os.getcwd(), "a.out")
+
+        # Create a target from the debugger.
+
+        target = self.dbg.CreateTarget (exe)
+        self.assertTrue(target, VALID_TARGET)
+
+        # Set up our breakpoints:
+        
+        main_bkpt = target.BreakpointCreateBySourceRegex ("Set a breakpoint here.", lldb.SBFileSpec (self.source_name))
+        self.assertTrue(main_bkpt and
+                        main_bkpt.GetNumLocations() == 1,
+                        VALID_BREAKPOINT)
+
+        # Now launch the process, and do not stop at the entry point.
+        process = target.LaunchSimple (None, None, self.get_process_working_directory())
+
+        self.assertTrue(process.GetState() == lldb.eStateStopped,
+                        PROCESS_STOPPED)
+
+        threads = lldbutil.get_threads_stopped_at_breakpoint (process, main_bkpt)
+        self.assertTrue (len(threads) == 1)
+        thread = threads[0]
+        frame = thread.GetFrameAtIndex(0)
+
+        mine = frame.FindVariable ("mine")
+        self.assertTrue (mine.IsValid())
+        access_count = mine.GetChildMemberWithName ("_access_count")
+        self.assertTrue (access_count.IsValid())
+        start_access_count = access_count.GetValueAsUnsigned (123456)
+        self.assertTrue (start_access_count != 123456)
+
+        #
+        # The first set of tests test calling the getter & setter of
+        # a property that actually only has a getter & setter and no
+        # @property.
+        #
+        nonexistant_value = frame.EvaluateExpression("mine.nonexistantInt", False)
+        nonexistant_error = nonexistant_value.GetError()
+        self.assertTrue (nonexistant_error.Success())
+        nonexistant_int = nonexistant_value.GetValueAsUnsigned (123456)
+        self.assertTrue (nonexistant_int == 6)
+        
+        # Calling the getter function would up the access count, so make sure that happened.
+        
+        new_access_count = access_count.GetValueAsUnsigned (123456)
+        self.assertTrue (new_access_count - start_access_count == 1)
+        start_access_count = new_access_count
+
+        #
+        # Now call the setter, then make sure that
+        nonexistant_change = frame.EvaluateExpression("mine.nonexistantInt = 10", False)
+        nonexistant_error = nonexistant_change.GetError()
+        self.assertTrue (nonexistant_error.Success())
+
+        # Calling the setter function would up the access count, so make sure that happened.
+        
+        new_access_count = access_count.GetValueAsUnsigned (123456)
+        self.assertTrue (new_access_count - start_access_count == 1)
+        start_access_count = new_access_count
+
+        #
+        # Now we call the getter of a property that is backed by an ivar,
+        # make sure it works and that we actually update the backing ivar.
+        #
+
+        backed_value = frame.EvaluateExpression("mine.backedInt", False)
+        backed_error = backed_value.GetError()
+        self.assertTrue (backed_error.Success())
+        backing_value = mine.GetChildMemberWithName ("_backedInt")
+        self.assertTrue (backing_value.IsValid())
+        self.assertTrue (backed_value.GetValueAsUnsigned (12345) == backing_value.GetValueAsUnsigned(23456))
+
+        unbacked_value = frame.EvaluateExpression("mine.unbackedInt", False)
+        unbacked_error = unbacked_value.GetError()
+        self.assertTrue (unbacked_error.Success())
+
+        idWithProtocol_value = frame.EvaluateExpression("mine.idWithProtocol", False)
+        idWithProtocol_error = idWithProtocol_value.GetError()
+        self.assertTrue (idWithProtocol_error.Success())
+        self.assertTrue (idWithProtocol_value.GetTypeName() == "id")