[Lldb-commits] [lldb] r124642 - in /lldb/trunk/test/cpp/virtual: Makefile TestVirtual.py main.cpp
Johnny Chen
johnny.chen at apple.com
Mon Jan 31 17:23:35 PST 2011
Author: johnny
Date: Mon Jan 31 19:23:34 2011
New Revision: 124642
URL: http://llvm.org/viewvc/llvm-project?rev=124642&view=rev
Log:
Add TestVirtual.py to go with test/cpp/virtual/main.cpp file, which tests
C++ virtual function and virtual inheritance.
Added:
lldb/trunk/test/cpp/virtual/Makefile
lldb/trunk/test/cpp/virtual/TestVirtual.py
Modified:
lldb/trunk/test/cpp/virtual/main.cpp
Added: lldb/trunk/test/cpp/virtual/Makefile
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/cpp/virtual/Makefile?rev=124642&view=auto
==============================================================================
--- lldb/trunk/test/cpp/virtual/Makefile (added)
+++ lldb/trunk/test/cpp/virtual/Makefile Mon Jan 31 19:23:34 2011
@@ -0,0 +1,5 @@
+LEVEL = ../../make
+
+CXX_SOURCES := main.cpp
+
+include $(LEVEL)/Makefile.rules
Added: lldb/trunk/test/cpp/virtual/TestVirtual.py
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/cpp/virtual/TestVirtual.py?rev=124642&view=auto
==============================================================================
--- lldb/trunk/test/cpp/virtual/TestVirtual.py (added)
+++ lldb/trunk/test/cpp/virtual/TestVirtual.py Mon Jan 31 19:23:34 2011
@@ -0,0 +1,86 @@
+"""
+Test C++ virtual function and virtual inheritance.
+"""
+
+import os, time
+import re
+import lldb
+from lldbtest import *
+
+def Msg(expr, val):
+ return "'expression %s' matches the output (from compiled code): %s" % (expr, val)
+
+class CppVirtualMadness(TestBase):
+
+ mydir = os.path.join("cpp", "virtual")
+
+ # This is the pattern by design to match the "my_expr = 'value'" output from
+ # printf() stmts (see main.cpp).
+ pattern = re.compile("^([^=]*) = '([^=]*)'$")
+
+ # Assert message.
+ PRINTF_OUTPUT_GROKKED = "The printf output from compiled code is parsed correctly"
+
+ @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
+ def test_virtual_madness_dsym(self):
+ """Test that expression works correctly with virtual inheritance as well as virtual function."""
+ self.buildDsym()
+ self.virtual_madness_test()
+
+ def test_virtual_madness_dwarf(self):
+ """Test that expression works correctly with virtual inheritance as well as virtual function."""
+ self.buildDwarf()
+ self.virtual_madness_test()
+
+ def setUp(self):
+ # Call super's setUp().
+ TestBase.setUp(self)
+ # Find the line number to break for main.cpp.
+ self.line = line_number('main.cpp', '// Set first breakpoint here.')
+
+ def virtual_madness_test(self):
+ """Test that variable expressions with basic types are evaluated correctly."""
+
+ # First, capture the golden output emitted by the oracle, i.e., the
+ # series of printf statements.
+ go = system("./a.out", sender=self)
+ # This golden list contains a list of "my_expr = 'value' pairs extracted
+ # from the golden output.
+ gl = []
+
+ # Scan the golden output line by line, looking for the pattern:
+ #
+ # my_expr = 'value'
+ #
+ for line in go.split(os.linesep):
+ match = self.pattern.search(line)
+ if match:
+ my_expr, val = match.group(1), match.group(2)
+ gl.append((my_expr, val))
+ #print "golden list:", gl
+
+ # Bring the program to the point where we can issue a series of
+ # 'expression' command to compare against the golden output.
+ self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
+ self.runCmd("breakpoint set -f main.cpp -l %d" % self.line)
+ self.runCmd("run", RUN_SUCCEEDED)
+
+ # Now iterate through the golden list, comparing against the output from
+ # 'expression var'.
+ for my_expr, val in gl:
+ # Don't overwhelm the expression mechanism.
+ # This slows down the test suite quite a bit, to enable it, define
+ # the environment variable LLDB_TYPES_EXPR_TIME_WAIT. For example:
+ #
+ # export LLDB_TYPES_EXPR_TIME_WAIT=0.5
+ #
+ # causes a 0.5 second delay between 'expression' commands.
+ if "LLDB_TYPES_EXPR_TIME_WAIT" in os.environ:
+ time.sleep(float(os.environ["LLDB_TYPES_EXPR_TIME_WAIT"]))
+
+ self.runCmd("expression %s" % my_expr)
+ output = self.res.GetOutput()
+
+ # The expression output must match the oracle.
+ self.expect(output, Msg(my_expr, val), exe=False,
+ substrs = [val])
Modified: lldb/trunk/test/cpp/virtual/main.cpp
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/test/cpp/virtual/main.cpp?rev=124642&r1=124641&r2=124642&view=diff
==============================================================================
--- lldb/trunk/test/cpp/virtual/main.cpp (original)
+++ lldb/trunk/test/cpp/virtual/main.cpp Mon Jan 31 19:23:34 2011
@@ -84,18 +84,7 @@
C *c_as_C = new C();
A *c_as_A = c_as_C;
- printf ("a_as_A->a() = '%s'\n", a_as_A->a());
- printf ("a_as_A->b() = '%s'\n", a_as_A->b());
- printf ("a_as_A->c() = '%s'\n", a_as_A->c());
- printf ("b_as_A->a() = '%s'\n", b_as_A->a());
- printf ("b_as_A->b() = '%s'\n", b_as_A->b());
- printf ("b_as_A->c() = '%s'\n", b_as_A->c());
- printf ("b_as_B->aa() = '%s'\n", b_as_B->aa());
- printf ("c_as_A->a() = '%s'\n", c_as_A->a());
- printf ("c_as_A->b() = '%s'\n", c_as_A->b());
- printf ("c_as_A->c() = '%s'\n", c_as_A->c());
- printf ("c_as_C->aa() = '%s'\n", c_as_C->aa());
- return 0; // Set first breakpoint here.
+ // Set first breakpoint here.
// then evaluate:
// expression a_as_A->a()
// expression a_as_A->b()
@@ -108,4 +97,16 @@
// expression c_as_A->b()
// expression c_as_A->c()
// expression c_as_C->aa()
+ printf ("a_as_A->a() = '%s'\n", a_as_A->a());
+ printf ("a_as_A->b() = '%s'\n", a_as_A->b());
+ printf ("a_as_A->c() = '%s'\n", a_as_A->c());
+ printf ("b_as_A->a() = '%s'\n", b_as_A->a());
+ printf ("b_as_A->b() = '%s'\n", b_as_A->b());
+ printf ("b_as_A->c() = '%s'\n", b_as_A->c());
+ printf ("b_as_B->aa() = '%s'\n", b_as_B->aa());
+ printf ("c_as_A->a() = '%s'\n", c_as_A->a());
+ printf ("c_as_A->b() = '%s'\n", c_as_A->b());
+ printf ("c_as_A->c() = '%s'\n", c_as_A->c());
+ printf ("c_as_C->aa() = '%s'\n", c_as_C->aa());
+ return 0;
}
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