4cc8f2a017
Eliminate boilerplate of having each test manually assign to `mydir` by calling `compute_mydir` in lldbtest.py. Differential Revision: https://reviews.llvm.org/D128077
60 lines
2.5 KiB
Python
60 lines
2.5 KiB
Python
"""
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Check that missing module source files are correctly handled by LLDB.
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"""
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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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import os
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import shutil
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class TestCase(TestBase):
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# We only emulate a fake libc++ in this test and don't use the real libc++,
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# but we still add the libc++ category so that this test is only run in
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# test configurations where libc++ is actually supposed to be tested.
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@add_test_categories(["libc++"])
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@skipIf(compiler=no_match("clang"))
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@skipIfRemote
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def test(self):
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# The path to our temporary target root that contains the temporary
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# module sources.
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target_sysroot = self.getBuildArtifact("root")
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# Copy the sources to the root.
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shutil.copytree(self.getSourcePath("root"), target_sysroot)
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# Build the binary with the copied sources.
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self.build()
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# Delete the copied sources so that they are now unavailable.
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shutil.rmtree(target_sysroot)
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# Set the sysroot where our dummy libc++ used to exist. Just to make
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# sure we don't find some existing headers on the system that could
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# XPASS this test.
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self.runCmd("platform select --sysroot '" + target_sysroot + "' host")
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lldbutil.run_to_source_breakpoint(self,
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"// Set break point at this line.",
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lldb.SBFileSpec("main.cpp"))
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# Import the std C++ module and run an expression.
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# As we deleted the sources, LLDB should refuse the load the module
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# and just print the normal error we get from the expression.
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self.runCmd("settings set target.import-std-module true")
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self.expect("expr v.unknown_identifier", error=True,
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substrs=["no member named 'unknown_identifier'"])
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# Check that there is no confusing error about failing to build the
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# module.
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self.expect("expr v.unknown_identifier", error=True, matching=False,
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substrs=["could not build module 'std'"])
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# Test the fallback mode. It should also just print the normal
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# error but not mention a failed module build.
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self.runCmd("settings set target.import-std-module fallback")
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self.expect("expr v.unknown_identifier", error=True,
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substrs=["no member named 'unknown_identifier'"])
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self.expect("expr v.unknown_identifier", error=True, matching=False,
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substrs=["could not build module 'std'"])
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