| """ |
| Test controlling `expression` result variables are persistent. |
| """ |
| |
| import lldb |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test import lldbutil |
| |
| |
| class TestCase(TestBase): |
| def setUp(self): |
| TestBase.setUp(self) |
| self.build() |
| lldbutil.run_to_source_breakpoint(self, "break here", lldb.SBFileSpec("main.c")) |
| |
| def test_enable_persistent_result(self): |
| """Test explicitly enabling result variables persistence.""" |
| self.expect("expression --persistent-result on -- i", substrs=["(int) $0 = 30"]) |
| # Verify the lifetime of $0 extends beyond the `expression` it was created in. |
| self.expect("expression $0", substrs=["(int) $0 = 30"]) |
| |
| def test_disable_persistent_result(self): |
| """Test explicitly disabling persistent result variables.""" |
| self.expect("expression --persistent-result off -- i", substrs=["(int) 30"]) |
| # Verify a persistent result was not silently created. |
| self.expect("expression $0", error=True) |
| |
| def test_expression_persists_result(self): |
| """Test `expression`'s default behavior is to persist a result variable.""" |
| self.expect("expression i", substrs=["(int) $0 = 30"]) |
| self.expect("expression $0", substrs=["(int) $0 = 30"]) |
| |
| def test_p_does_not_persist_results(self): |
| """Test `p` does not persist a result variable.""" |
| self.expect("p i", startstr="(int) 30") |
| self.expect("p $0", error=True) |
