114 lines
3.7 KiB
Python
114 lines
3.7 KiB
Python
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"""
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Test top-level expressions.
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"""
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import lldb
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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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class TopLevelExpressionsTestCase(TestBase):
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def setUp(self):
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# Call super's setUp().
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TestBase.setUp(self)
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# Find the line number to break for main.c.
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self.line = line_number("main.cpp", "// Set breakpoint here")
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self.dummy_line = line_number("dummy.cpp", "// Set breakpoint here")
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# Disable confirmation prompt to avoid infinite wait
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self.runCmd("settings set auto-confirm true")
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self.addTearDownHook(lambda: self.runCmd("settings clear auto-confirm"))
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def build_and_run(self):
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"""Test top-level expressions."""
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self.build()
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self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET)
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lldbutil.run_break_set_by_file_and_line(
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self, "main.cpp", self.line, num_expected_locations=1, loc_exact=False
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)
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self.runCmd("run", RUN_SUCCEEDED)
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def run_dummy(self):
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self.runCmd("file " + self.getBuildArtifact("dummy"), CURRENT_EXECUTABLE_SET)
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lldbutil.run_break_set_by_file_and_line(
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self,
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"dummy.cpp",
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self.dummy_line,
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num_expected_locations=1,
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loc_exact=False,
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)
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self.runCmd("run", RUN_SUCCEEDED)
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@add_test_categories(["pyapi"])
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@skipIf(debug_info="gmodules") # not relevant
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@skipIf(oslist=["windows"]) # Error in record layout on Windows
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def test_top_level_expressions(self):
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self.build_and_run()
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resultFromCode = (
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self.frame().EvaluateExpression("doTest()").GetValueAsUnsigned()
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)
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self.runCmd("kill")
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self.run_dummy()
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codeFile = open("test.cpp", "r")
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expressions = []
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current_expression = ""
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for line in codeFile:
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if line.startswith("// --"):
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expressions.append(current_expression)
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current_expression = ""
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else:
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current_expression += line
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options = lldb.SBExpressionOptions()
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options.SetLanguage(lldb.eLanguageTypeC_plus_plus)
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options.SetTopLevel(True)
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for expression in expressions:
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self.frame().EvaluateExpression(expression, options)
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resultFromTopLevel = self.frame().EvaluateExpression("doTest()")
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self.assertTrue(resultFromTopLevel.IsValid())
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self.assertEqual(resultFromCode, resultFromTopLevel.GetValueAsUnsigned())
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# Make sure the command line version works as well:
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self.runCmd("expr --top-level -- int TopLevelFunction() { return 101; }")
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resultFromTopLevel = self.frame().EvaluateExpression("TopLevelFunction()")
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self.assertTrue(resultFromTopLevel.IsValid())
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self.assertEqual(
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101, resultFromTopLevel.GetValueAsUnsigned(), "Command line version works."
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)
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def test_top_level_expression_without_target(self):
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self.expect(
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"expr --top-level -- void func() {}",
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error=True,
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substrs=["Top-level code needs to be inserted into a runnable target"],
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)
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# FIXME: This doesn't actually generate any code, so LLDB should probably
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# allow these expressions.
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self.expect(
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"expr --top-level -- template<typename T> struct StructT { T m; };",
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error=True,
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substrs=["Top-level code needs to be inserted into a runnable target"],
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)
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self.expect(
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"expr --top-level -- struct Struct { int i; };",
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error=True,
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substrs=["Top-level code needs to be inserted into a runnable target"],
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)
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