Add first tests for mini-dump debugging.

Differential Revision: http://reviews.llvm.org/D12888

llvm-svn: 247829

lldb/test/functionalities/postmortem/minidump/TestMiniDump.py

@@ -0,0 +1,42 @@
+"""
+Test basics of mini dump debugging.
+"""
+
+import unittest2
+import lldb
+from lldbtest import *
+import lldbutil
+
+@skipUnlessWindows  # for now mini-dump debugging is limited to Windows hosts
+class MiniDumpTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    def test_process_info_in_mini_dump(self):
+        """Test that lldb can read the process information from the minidump."""
+        self.assertTrue(self.process, PROCESS_IS_VALID)
+        self.assertEqual(self.process.GetNumThreads(), 1)
+        # TODO(amccarth):  Check the process ID.
+
+    def test_thread_info_in_mini_dump(self):
+        """Test that lldb can read the thread information from the minidump."""
+        # This process crashed due to an access violation (0xc0000005) in its one and only thread.
+        self.assertEqual(self.process.GetNumThreads(), 1)
+        thread = self.process.GetThreadAtIndex(0)
+        self.assertEqual(thread.GetStopReason(), lldb.eStopReasonException)
+        stop_description = thread.GetStopDescription(256);
+        self.assertTrue("0xc0000005" in stop_description);
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        # target create -c fizzbuzz_no_heap.dmp
+        self.dbg.CreateTarget("")
+        self.target = self.dbg.GetSelectedTarget()
+        self.process = self.target.LoadCore("fizzbuzz_no_heap.dmp")
+
+if __name__ == '__main__':
+    import atexit
+    lldb.SBDebugger.Initialize()
+    atexit.register(lambda: lldb.SBDebugger.Terminate())
+    unittest2.main()

lldb/test/functionalities/postmortem/minidump/fizzbuzz.cpp

@@ -0,0 +1,31 @@
+// A sample program for getting minidumps on Windows.
+
+#include <iostream>
+
+bool
+fizz(int x)
+{
+    return x % 3 == 0;
+}
+
+bool
+buzz(int x)
+{
+    return x % 5 == 0;
+}
+
+int
+main()
+{
+    int *buggy = 0;
+
+    for (int i = 1; i <= 100; ++i)
+    {
+        if (fizz(i)) std::cout << "fizz";
+        if (buzz(i)) std::cout << "buzz";
+        if (!fizz(i) && !buzz(i)) std::cout << i;
+        std::cout << '\n';
+    }
+
+    return *buggy;
+}

lldb/test/lldbtest.py

@@ -889,6 +889,10 @@ def skipIfHostWindows(func):
     """Decorate the item to skip tests that should be skipped on Windows."""
     return skipIfHostPlatform(["windows"])(func)
 
+def skipUnlessWindows(func):
+    """Decorate the item to skip tests that should be skipped on any non-Windows platform."""
+    return skipUnlessPlatform(["windows"])(func)
+
 def skipUnlessDarwin(func):
     """Decorate the item to skip tests that should be skipped on any non Darwin platform."""
     return skipUnlessPlatform(getDarwinOSTriples())(func)