1 files changed, 86 insertions, 0 deletions
diff --git a/lldb/packages/Python/lldbsuite/test/commands/frame/language/TestGuessLanguage.py b/lldb/packages/Python/lldbsuite/test/commands/frame/language/TestGuessLanguage.py
new file mode 100644
index 00000000000..19fa3e9f0d8
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/commands/frame/language/TestGuessLanguage.py
@@ -0,0 +1,86 @@
+"""
+Test the SB API SBFrame::GuessLanguage.
+"""
+
+from __future__ import print_function
+
+
+import lldb
+import lldbsuite.test.lldbutil as lldbutil
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+
+
+class TestFrameGuessLanguage(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    # If your test case doesn't stress debug info, the
+    # set this to true.  That way it won't be run once for
+    # each debug info format.
+    NO_DEBUG_INFO_TESTCASE = True
+
+    @expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr37658")
+    def test_guess_language(self):
+        """Test GuessLanguage for C and C++."""
+        self.build()
+        self.do_test()
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+
+    def check_language(self, thread, frame_no, test_lang):
+        frame = thread.frames[frame_no]
+        self.assertTrue(frame.IsValid(), "Frame %d was not valid."%(frame_no))
+        lang = frame.GuessLanguage()
+        self.assertEqual(lang, test_lang)
+
+    def do_test(self):
+        """Test GuessLanguage for C & C++."""
+        exe = self.getBuildArtifact("a.out")
+
+        # Create a target by the debugger.
+        target = self.dbg.CreateTarget(exe)
+        self.assertTrue(target, VALID_TARGET)
+
+        # Now create a breakpoint in main.c at the source matching
+        # "Set a breakpoint here"
+        breakpoint = target.BreakpointCreateBySourceRegex(
+            "Set breakpoint here", lldb.SBFileSpec("somefunc.c"))
+        self.assertTrue(breakpoint and
+                        breakpoint.GetNumLocations() >= 1,
+                        VALID_BREAKPOINT)
+
+        error = lldb.SBError()
+        # This is the launch info.  If you want to launch with arguments or
+        # environment variables, add them using SetArguments or
+        # SetEnvironmentEntries
+
+        launch_info = lldb.SBLaunchInfo(None)
+        process = target.Launch(launch_info, error)
+        self.assertTrue(process, PROCESS_IS_VALID)
+
+        # Did we hit our breakpoint?
+        from lldbsuite.test.lldbutil import get_threads_stopped_at_breakpoint
+        threads = get_threads_stopped_at_breakpoint(process, breakpoint)
+        self.assertTrue(
+            len(threads) == 1,
+            "There should be a thread stopped at our breakpoint")
+
+        # The hit count for the breakpoint should be 1.
+        self.assertTrue(breakpoint.GetHitCount() == 1)
+
+        thread = threads[0]
+
+        c_frame_language = lldb.eLanguageTypeC99
+        # gcc emits DW_LANG_C89 even if -std=c99 was specified
+        if "gcc" in self.getCompiler():
+            c_frame_language = lldb.eLanguageTypeC89
+
+        self.check_language(thread, 0, c_frame_language)
+        self.check_language(thread, 1, lldb.eLanguageTypeC_plus_plus)
+        self.check_language(thread, 2, lldb.eLanguageTypeC_plus_plus)
+
+
+