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This is a helper class which supports a number of features including exception to string formatting with backtrace handling and auto-restore of exception state upon scope exit. Additionally, unit tests are included to verify the feature set of the class. llvm-svn: 252994
122 lines
3.3 KiB
C++
122 lines
3.3 KiB
C++
//===-- PythonExceptionStateTest.cpp ------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "gtest/gtest.h"
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#include "Plugins/ScriptInterpreter/Python/lldb-python.h"
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#include "Plugins/ScriptInterpreter/Python/PythonDataObjects.h"
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#include "Plugins/ScriptInterpreter/Python/PythonExceptionState.h"
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#include "Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.h"
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#include "PythonTestSuite.h"
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using namespace lldb_private;
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class PythonExceptionStateTest : public PythonTestSuite
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{
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public:
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protected:
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void
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RaiseException()
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{
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PyErr_SetString(PyExc_RuntimeError, "PythonExceptionStateTest test error");
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}
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};
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TEST_F(PythonExceptionStateTest, TestExceptionStateChecking)
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{
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PyErr_Clear();
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EXPECT_FALSE(PythonExceptionState::HasErrorOccurred());
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RaiseException();
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EXPECT_TRUE(PythonExceptionState::HasErrorOccurred());
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PyErr_Clear();
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}
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TEST_F(PythonExceptionStateTest, TestAcquisitionSemantics)
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{
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PyErr_Clear();
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PythonExceptionState no_error(false);
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EXPECT_FALSE(no_error.IsError());
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EXPECT_FALSE(PythonExceptionState::HasErrorOccurred());
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PyErr_Clear();
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RaiseException();
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PythonExceptionState error(false);
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EXPECT_TRUE(error.IsError());
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EXPECT_FALSE(PythonExceptionState::HasErrorOccurred());
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error.Discard();
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PyErr_Clear();
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RaiseException();
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error.Acquire(false);
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EXPECT_TRUE(error.IsError());
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EXPECT_FALSE(PythonExceptionState::HasErrorOccurred());
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PyErr_Clear();
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}
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TEST_F(PythonExceptionStateTest, TestDiscardSemantics)
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{
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PyErr_Clear();
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// Test that discarding an exception does not restore the exception
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// state even when auto-restore==true is set
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RaiseException();
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PythonExceptionState error(true);
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EXPECT_TRUE(error.IsError());
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EXPECT_FALSE(PythonExceptionState::HasErrorOccurred());
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error.Discard();
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EXPECT_FALSE(error.IsError());
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EXPECT_FALSE(PythonExceptionState::HasErrorOccurred());
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}
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TEST_F(PythonExceptionStateTest, TestManualRestoreSemantics)
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{
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PyErr_Clear();
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RaiseException();
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PythonExceptionState error(false);
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EXPECT_TRUE(error.IsError());
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EXPECT_FALSE(PythonExceptionState::HasErrorOccurred());
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error.Restore();
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EXPECT_FALSE(error.IsError());
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EXPECT_TRUE(PythonExceptionState::HasErrorOccurred());
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PyErr_Clear();
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}
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TEST_F(PythonExceptionStateTest, TestAutoRestoreSemantics)
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{
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PyErr_Clear();
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// Test that using the auto-restore flag correctly restores the exception
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// state on destruction, and not using the auto-restore flag correctly
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// does NOT restore the state on destruction.
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{
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RaiseException();
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PythonExceptionState error(false);
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EXPECT_TRUE(error.IsError());
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EXPECT_FALSE(PythonExceptionState::HasErrorOccurred());
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}
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EXPECT_FALSE(PythonExceptionState::HasErrorOccurred());
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PyErr_Clear();
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{
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RaiseException();
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PythonExceptionState error(true);
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EXPECT_TRUE(error.IsError());
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EXPECT_FALSE(PythonExceptionState::HasErrorOccurred());
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}
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EXPECT_TRUE(PythonExceptionState::HasErrorOccurred());
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PyErr_Clear();
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}
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