Introduce unittest for BaseProcess.

code/Common/AssertHandler.cpp

@@ -5,8 +5,6 @@ Open Asset Import Library (assimp)
 
 Copyright (c) 2006-2022, assimp team
 
-
-
 All rights reserved.
 
 Redistribution and use of this software in source and binary forms,
@@ -50,23 +48,23 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <iostream>
 #include <cstdlib>
 
-void Assimp::defaultAiAssertHandler(const char* failedExpression, const char* file, int line)
-{
+void Assimp::defaultAiAssertHandler(const char* failedExpression, const char* file, int line) {
     std::cerr << "ai_assert failure in " << file << "(" << line << "): " << failedExpression << std::endl;
     std::abort();
 }
 
-namespace
-{
+namespace {
     Assimp::AiAssertHandler s_handler = Assimp::defaultAiAssertHandler;
 }
 
-void Assimp::setAiAssertHandler(AiAssertHandler handler)
-{
-    s_handler = handler;
+void Assimp::setAiAssertHandler(AiAssertHandler handler) {
+    if (handler != nullptr) {
+        s_handler = handler;
+    } else {
+        s_handler = Assimp::defaultAiAssertHandler;
+    }
 }
 
-void Assimp::aiAssertViolation(const char* failedExpression, const char* file, int line)
-{
+void Assimp::aiAssertViolation(const char* failedExpression, const char* file, int line) {
     s_handler(failedExpression, file, line);
 }

code/Common/AssertHandler.h

@@ -47,29 +47,33 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <assimp/ai_assert.h>
 #include <assimp/defs.h>
 
-namespace Assimp
-{
-    // ---------------------------------------------------------------------------
-    /** Signature of functions which handle assert violations.
-     */
-    using AiAssertHandler = void (*)(const char* failedExpression, const char* file, int line);
-
-    // ---------------------------------------------------------------------------
-    /** Set the assert handler.
-     */
-    ASSIMP_API void setAiAssertHandler(AiAssertHandler handler);
-
-    // ---------------------------------------------------------------------------
-    /** The assert handler which is set by default.
-     *
-     * This issues a message to stderr and calls abort.
-     */
-    ASSIMP_API void defaultAiAssertHandler(const char* failedExpression, const char* file, int line);
-
-    // ---------------------------------------------------------------------------
-    /** Dispatches an assert violation to the assert handler.
-     */
-    ASSIMP_API void aiAssertViolation(const char* failedExpression, const char* file, int line);
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/**
+ *  @brief  Signature of functions which handle assert violations.
+ */
+using AiAssertHandler = void (*)(const char* failedExpression, const char* file, int line);
+
+// ---------------------------------------------------------------------------
+/**
+ *  @brief  Set the assert handler.
+ */
+ASSIMP_API void setAiAssertHandler(AiAssertHandler handler);
+
+// ---------------------------------------------------------------------------
+/** The assert handler which is set by default.
+ *
+ *  @brief  This issues a message to stderr and calls abort.
+ */
+ASSIMP_API void defaultAiAssertHandler(const char* failedExpression, const char* file, int line);
+
+// ---------------------------------------------------------------------------
+/**
+ *  @brief  Dispatches an assert violation to the assert handler.
+ */
+ASSIMP_API void aiAssertViolation(const char* failedExpression, const char* file, int line);
+
 } // end of namespace Assimp
 
-#endif // INCLUDED_AI_ASSERTHANDLER_H
+#endif // INCLUDED_AI_ASSERTHANDLER_H

code/Common/BaseImporter.cpp

@@ -234,19 +234,23 @@ void BaseImporter::GetExtensionList(std::set<std::string> &extensions) {
     std::string::size_type pos = pFile.find_last_of('.');
 
     // no file extension - can't read
-    if (pos == std::string::npos)
+    if (pos == std::string::npos) {
         return false;
+    }
 
     const char *ext_real = &pFile[pos + 1];
-    if (!ASSIMP_stricmp(ext_real, ext0))
+    if (!ASSIMP_stricmp(ext_real, ext0)) {
         return true;
+    }
 
     // check for other, optional, file extensions
-    if (ext1 && !ASSIMP_stricmp(ext_real, ext1))
+    if (ext1 && !ASSIMP_stricmp(ext_real, ext1)) {
         return true;
+    }
 
-    if (ext2 && !ASSIMP_stricmp(ext_real, ext2))
-        return true;
+    if (ext2 && !ASSIMP_stricmp(ext_real, ext2)) {
+        return true;        
+    }
 
     return false;
 }

code/Common/BaseProcess.cpp

@@ -66,17 +66,26 @@ BaseProcess::~BaseProcess() {
 // ------------------------------------------------------------------------------------------------
 void BaseProcess::ExecuteOnScene(Importer *pImp) {
     ai_assert( nullptr != pImp );
-    ai_assert( nullptr != pImp->Pimpl()->mScene);
+    if (pImp == nullptr) {
+        return;
+    }
+
+    ai_assert(nullptr != pImp->Pimpl()->mScene);
+    if (pImp->Pimpl()->mScene == nullptr) {
+        return;
+    }
 
     progress = pImp->GetProgressHandler();
     ai_assert(nullptr != progress);
+    if (progress == nullptr) {
+        return;
+    }
 
     SetupProperties(pImp);
 
     // catch exceptions thrown inside the PostProcess-Step
     try {
         Execute(pImp->Pimpl()->mScene);
-
     } catch (const std::exception &err) {
 
         // extract error description

code/Common/BaseProcess.h

@@ -179,19 +179,20 @@ class ASSIMP_API_WINONLY BaseProcess {
     friend class Importer;
 
 public:
-    /** Constructor to be privately used by Importer */
+    /** @brief onstructor to be privately used by Importer */
     BaseProcess() AI_NO_EXCEPT;
 
-    /** Destructor, private as well */
+    /** @brief Destructor, private as well */
     virtual ~BaseProcess();
 
     // -------------------------------------------------------------------
-    /** Returns whether the processing step is present in the given flag.
+    /**
+     * @brief Returns whether the processing step is present in the given flag.
      * @param pFlags The processing flags the importer was called with. A
      *   bitwise combination of #aiPostProcessSteps.
      * @return true if the process is present in this flag fields,
      *   false if not.
-    */
+     */
     virtual bool IsActive(unsigned int pFlags) const = 0;
 
     // -------------------------------------------------------------------
@@ -200,33 +201,36 @@ public:
     virtual bool RequireVerboseFormat() const;
 
     // -------------------------------------------------------------------
-    /** Executes the post processing step on the given imported data.
-    * The function deletes the scene if the postprocess step fails (
-    * the object pointer will be set to nullptr).
-    * @param pImp Importer instance (pImp->mScene must be valid)
-    */
+    /**
+     * @brief Executes the post processing step on the given imported data.
+     * The function deletes the scene if the post-process step fails (
+     * the object pointer will be set to nullptr).
+     * @param pImp Importer instance (pImp->mScene must be valid)
+     */
     void ExecuteOnScene(Importer *pImp);
 
     // -------------------------------------------------------------------
-    /** Called prior to ExecuteOnScene().
-    * The function is a request to the process to update its configuration
-    * basing on the Importer's configuration property list.
-    */
+    /**
+     * @brief Called prior to ExecuteOnScene().
+     * The function is a request to the process to update its configuration
+     * basing on the Importer's configuration property list.
+     */
     virtual void SetupProperties(const Importer *pImp);
 
     // -------------------------------------------------------------------
-    /** Executes the post processing step on the given imported data.
-    * A process should throw an ImportErrorException* if it fails.
-    * This method must be implemented by deriving classes.
-    * @param pScene The imported data to work at.
-    */
+    /**
+     * @brief Executes the post processing step on the given imported data.
+     * A process should throw an ImportErrorException* if it fails.
+     * This method must be implemented by deriving classes.
+     * @param pScene The imported data to work at.
+     */
     virtual void Execute(aiScene *pScene) = 0;
 
     // -------------------------------------------------------------------
     /** Assign a new SharedPostProcessInfo to the step. This object
-     *  allows multiple postprocess steps to share data.
+     *  allows multiple post-process steps to share data.
      * @param sh May be nullptr
-    */
+     */
     inline void SetSharedData(SharedPostProcessInfo *sh) {
         shared = sh;
     }

test/CMakeLists.txt

@@ -71,7 +71,6 @@ SET( COMMON
   unit/AssimpAPITest_aiQuaternion.cpp
   unit/AssimpAPITest_aiVector2D.cpp
   unit/AssimpAPITest_aiVector3D.cpp
-  unit/Common/utHash.cpp
   unit/MathTest.cpp
   unit/MathTest.h
   unit/RandomNumberGeneration.h
@@ -98,6 +97,8 @@ SET( COMMON
   unit/Common/utAssertHandler.cpp
   unit/Common/utXmlParser.cpp
   unit/Common/utBase64.cpp
+  unit/Common/utHash.cpp
+  unit/Common/utBaseProcess.cpp
 )
 
 SET( IMPORTERS

test/unit/Common/utBaseProcess.cpp

@@ -0,0 +1,105 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#include "TestIOSystem.h"
+#include "UnitTestPCH.h"
+
+#include "Common/BaseProcess.h"
+#include "Common/AssertHandler.h"
+
+using namespace Assimp;
+
+class BaseProcessTest : public ::testing::Test {
+public:
+    static void test_handler( const char*, const char*, int ) {
+        HandlerWasCalled = true;
+    }
+
+    void SetUp() override {
+        HandlerWasCalled = false;
+        setAiAssertHandler(test_handler);
+    }
+
+    void TearDown() override {
+        setAiAssertHandler(nullptr);
+    }
+
+    static bool handlerWasCalled() {
+        return HandlerWasCalled;
+    }
+
+private:
+    static bool HandlerWasCalled;
+};
+
+bool BaseProcessTest::HandlerWasCalled = false;
+
+class TestingBaseProcess : public BaseProcess {
+public:
+    TestingBaseProcess() : BaseProcess() {
+        // empty
+    }
+
+    ~TestingBaseProcess() override = default;
+
+    bool IsActive( unsigned int ) const override {
+        return true;
+    }
+
+    void Execute(aiScene*) override {
+
+    }
+};
+TEST_F( BaseProcessTest, constructTest ) {
+    bool ok = true;
+    try {
+        TestingBaseProcess process;
+    } catch (...) {
+        ok = false;
+    }
+    EXPECT_TRUE(ok);
+}
+
+TEST_F( BaseProcessTest, executeOnSceneTest ) {
+    TestingBaseProcess process;
+    process.ExecuteOnScene(nullptr);
+    EXPECT_TRUE(BaseProcessTest::handlerWasCalled());
+}