Move lldb/test to lldb/packages/Python/lldbsuite/test.

This is the conclusion of an effort to get LLDB's Python code
structured into a bona-fide Python package.  This has a number
of benefits, but most notably the ability to more easily share
Python code between different but related pieces of LLDB's Python
infrastructure (for example, `scripts` can now share code with
`test`).

llvm-svn: 251532

4 files changed, 121 insertions, 0 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/inferior-changed/Makefile b/lldb/packages/Python/lldbsuite/test/functionalities/inferior-changed/Makefile
new file mode 100644
index 00000000000..0d70f259501
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/inferior-changed/Makefile
@@ -0,0 +1,5 @@
+LEVEL = ../../make
+
+C_SOURCES := main.c
+
+include $(LEVEL)/Makefile.rules
diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/inferior-changed/TestInferiorChanged.py b/lldb/packages/Python/lldbsuite/test/functionalities/inferior-changed/TestInferiorChanged.py
new file mode 100644
index 00000000000..daf39e6477d
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/inferior-changed/TestInferiorChanged.py
@@ -0,0 +1,82 @@
+"""Test lldb reloads the inferior after it was changed during the session."""
+
+from __future__ import print_function
+
+import use_lldb_suite
+
+import os, time
+import lldb
+from lldbtest import *
+import lldbutil
+
+class ChangedInferiorTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @skipIfHostWindows
+    def test_inferior_crashing(self):
+        """Test lldb reloads the inferior after it was changed during the session."""
+        self.build()
+        self.inferior_crashing()
+        self.cleanup()
+        # lldb needs to recognize the inferior has changed. If lldb needs to check the
+        # new module timestamp, make sure it is not the same as the old one, so add a
+        # 1 second delay.
+        time.sleep(1)
+        d = {'C_SOURCES': 'main2.c'}
+        self.build(dictionary=d)
+        self.setTearDownCleanup(dictionary=d)
+        self.inferior_not_crashing()
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        # Find the line number of the crash.
+        self.line1 = line_number('main.c', '// Crash here.')
+        self.line2 = line_number('main2.c', '// Not crash here.')
+
+    def inferior_crashing(self):
+        """Inferior crashes upon launching; lldb should catch the event and stop."""
+        self.exe = os.path.join(os.getcwd(), "a.out")
+        self.runCmd("file " + self.exe, CURRENT_EXECUTABLE_SET)
+
+        self.runCmd("run", RUN_SUCCEEDED)
+
+        # We should have one crashing thread
+        self.assertEqual(
+                len(lldbutil.get_crashed_threads(self, self.dbg.GetSelectedTarget().GetProcess())),
+                1,
+                STOPPED_DUE_TO_EXC_BAD_ACCESS)
+
+        # And it should report the correct line number.
+        self.expect("thread backtrace all", substrs = ['main.c:%d' % self.line1])
+
+    def inferior_not_crashing(self):
+        """Test lldb reloads the inferior after it was changed during the session."""
+        self.runCmd("process kill")
+        # Prod the lldb-platform that we have a newly built inferior ready.
+        if lldb.lldbtest_remote_sandbox:
+            self.runCmd("file " + self.exe, CURRENT_EXECUTABLE_SET)
+        self.runCmd("run", RUN_SUCCEEDED)
+        self.runCmd("process status")
+
+        self.assertNotEqual(
+                len(lldbutil.get_crashed_threads(self, self.dbg.GetSelectedTarget().GetProcess())),
+                1,
+                "Inferior changed, but lldb did not perform a reload")
+
+        # Break inside the main.
+        lldbutil.run_break_set_by_file_and_line (self, "main2.c", self.line2, num_expected_locations=1, loc_exact=True)
+
+        self.runCmd("run", RUN_SUCCEEDED)
+
+        # The stop reason of the thread should be breakpoint.
+        self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
+            substrs = ['stopped',
+                       'stop reason = breakpoint'])
+
+        self.runCmd("frame variable int_ptr")
+        self.expect("frame variable *int_ptr",
+            substrs = ['= 7'])
+        self.expect("expression *int_ptr",
+            substrs = ['= 7'])
diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/inferior-changed/main.c b/lldb/packages/Python/lldbsuite/test/functionalities/inferior-changed/main.c
new file mode 100644
index 00000000000..9d0706a0862
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/inferior-changed/main.c
@@ -0,0 +1,16 @@
+//===-- main.c --------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+#include <stdio.h>
+
+int main(int argc, const char* argv[])
+{
+    int *null_ptr = 0;
+    printf("Hello, segfault!\n");
+    printf("Now crash %d\n", *null_ptr); // Crash here.
+}
diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/inferior-changed/main2.c b/lldb/packages/Python/lldbsuite/test/functionalities/inferior-changed/main2.c
new file mode 100644
index 00000000000..9173e8c30b5
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/functionalities/inferior-changed/main2.c
@@ -0,0 +1,18 @@
+//===-- main2.c -------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc, const char* argv[])
+{
+    int *int_ptr = (int *)malloc(sizeof(int));
+    *int_ptr = 7;
+    printf("Hello, world!\n");
+    printf("Now not crash %d\n", *int_ptr); // Not crash here.
+}