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69b3363a53
These tests were testing a bug related to constructors. It seems that on Windows the expression command can't construct objects (or at least, call their constructor explicitly which is required for the tests), so this is just x-failing them until Windows actually supports constructor calls. llvm-svn: 375173
73 lines
2.6 KiB
Python
73 lines
2.6 KiB
Python
"""
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Test calling an overriden method.
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Note:
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This verifies that LLDB is correctly building the method overrides table.
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If this table is not built correctly then calls to overridden methods in
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derived classes may generate references to non-existant vtable entries,
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as the compiler treats the overridden method as a totally new virtual
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method definition.
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<rdar://problem/14205774>
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"""
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class ExprCommandCallOverriddenMethod(TestBase):
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mydir = TestBase.compute_mydir(__file__)
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Find the line number to break for main.c.
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self.line = line_number('main.cpp', '// Set breakpoint here')
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def test(self):
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"""Test calls to overridden methods in derived classes."""
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self.build()
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# Set breakpoint in main and run exe
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self.runCmd("file " + self.getBuildArtifact("a.out"),
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CURRENT_EXECUTABLE_SET)
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lldbutil.run_break_set_by_file_and_line(
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self, "main.cpp", self.line, num_expected_locations=-1, loc_exact=True)
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self.runCmd("run", RUN_SUCCEEDED)
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# Test call to method in base class (this should always work as the base
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# class method is never an override).
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self.expect("expr b->foo()", substrs=["2"])
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# Test call to overridden method in derived class (this will fail if the
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# overrides table is not correctly set up, as Derived::foo will be assigned
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# a vtable entry that does not exist in the compiled program).
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self.expect("expr d.foo()", substrs=["2"])
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# Test calling the base class.
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self.expect("expr realbase.foo()", substrs=["1"])
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# Test with locally constructed instances.
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self.expect("expr Base().foo()", substrs=["1"])
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self.expect("expr Derived().foo()", substrs=["2"])
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@expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr43707")
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def test_call_on_temporary(self):
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"""Test calls to overridden methods in derived classes."""
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self.build()
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# Set breakpoint in main and run exe
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self.runCmd("file " + self.getBuildArtifact("a.out"),
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CURRENT_EXECUTABLE_SET)
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lldbutil.run_break_set_by_file_and_line(
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self, "main.cpp", self.line, num_expected_locations=-1, loc_exact=True)
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self.runCmd("run", RUN_SUCCEEDED)
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# Test with locally constructed instances.
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self.expect("expr Base().foo()", substrs=["1"])
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self.expect("expr Derived().foo()", substrs=["2"])
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