38 lines · python
1"""2Test controlling `expression` result variables are persistent.3"""4 5import lldb6from lldbsuite.test.lldbtest import *7from lldbsuite.test.decorators import *8from lldbsuite.test import lldbutil9 10 11class TestCase(TestBase):12 def setUp(self):13 TestBase.setUp(self)14 self.build()15 lldbutil.run_to_source_breakpoint(self, "break here", lldb.SBFileSpec("main.c"))16 17 def test_enable_persistent_result(self):18 """Test explicitly enabling result variables persistence."""19 self.expect("expression --persistent-result on -- i", substrs=["(int) $0 = 30"])20 # Verify the lifetime of $0 extends beyond the `expression` it was created in.21 self.expect("expression $0", substrs=["(int) $0 = 30"])22 23 def test_disable_persistent_result(self):24 """Test explicitly disabling persistent result variables."""25 self.expect("expression --persistent-result off -- i", substrs=["(int) 30"])26 # Verify a persistent result was not silently created.27 self.expect("expression $0", error=True)28 29 def test_expression_persists_result(self):30 """Test `expression`'s default behavior is to persist a result variable."""31 self.expect("expression i", substrs=["(int) $0 = 30"])32 self.expect("expression $0", substrs=["(int) $0 = 30"])33 34 def test_p_does_not_persist_results(self):35 """Test `p` does not persist a result variable."""36 self.expect("p i", startstr="(int) 30")37 self.expect("p $0", error=True)38