| """ |
| Test that lldb persistent variables works correctly. |
| """ |
| |
| |
| |
| import lldb |
| from lldbsuite.test.lldbtest import * |
| |
| |
| class PersistentVariablesTestCase(TestBase): |
| |
| def test_persistent_variables(self): |
| """Test that lldb persistent variables works correctly.""" |
| self.build() |
| lldbutil.run_to_source_breakpoint(self, "// break here", lldb.SBFileSpec("main.c")) |
| |
| self.runCmd("expr int $i = i") |
| self.expect_expr("$i == i", result_type="bool", result_value="true") |
| self.expect_expr("$i + 1", result_type="int", result_value="6") |
| self.expect_expr("$i + 3", result_type="int", result_value="8") |
| self.expect_expr("$1 + $2", result_type="int", result_value="14") |
| self.expect_expr("$3", result_type="int", result_value="14") |
| self.expect_expr("$2", result_type="int", result_value="8") |
| self.expect_expr("(int)-2", result_type="int", result_value="-2") |
| self.expect_expr("$4", result_type="int", result_value="-2") |
| self.expect_expr("$4 > (int)31", result_type="bool", result_value="false") |
| self.expect_expr("(long)$4", result_type="long", result_value="-2") |
| |
| # Try assigning an existing persistent veriable with a numeric name. |
| self.expect("expr int $2 = 1234", error=True, |
| substrs=["Error [IRForTarget]: Names starting with $0, $1, ... are reserved for use as result names"]) |
| # $2 should still have its original value. |
| self.expect_expr("$2", result_type="int", result_value="8") |
| |
| # Try assigning an non-existing persistent veriable with a numeric name. |
| self.expect("expr int $200 = 3", error=True, |
| substrs=["Error [IRForTarget]: Names starting with $0, $1, ... are reserved for use as result names"]) |
| # Test that $200 wasn't created by the previous expression. |
| self.expect("expr $200", error=True, |
| substrs=["use of undeclared identifier '$200'"]) |
| |
| # Try redeclaring the persistent variable with the same type. |
| # This should be rejected as we treat them as if they are globals. |
| self.expect("expr int $i = 123", error=True, |
| substrs=["error: redefinition of persistent variable '$i'"]) |
| self.expect_expr("$i", result_type="int", result_value="5") |
| |
| # Try redeclaring the persistent variable with another type. Should |
| # also be rejected. |
| self.expect("expr long $i = 123", error=True, |
| substrs=["error: redefinition of persistent variable '$i'"]) |
| self.expect_expr("$i", result_type="int", result_value="5") |
| |
| # Try assigning the persistent variable a new value. |
| self.expect("expr $i = 55") |
| self.expect_expr("$i", result_type="int", result_value="55") |
