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