Generate stubs for function pointers of inner structs (#607)

* Generate stubs for function pointers of inner structs

Author: IDKWNTCMF

server/src/visitors/FunctionPointerForStubsVisitor.cpp

@@ -56,9 +56,7 @@ namespace visitor {
                                                       const tests::AbstractValueView *view,
                                                       const std::string &access,
                                                       int depth) {
-        if (depth == 0) {
-            AbstractValueViewVisitor::visitPointer(type, name, view, access, depth);
-        }
+        AbstractValueViewVisitor::visitPointer(type, name, view, access, depth);
     }
 
     void FunctionPointerForStubsVisitor::visitArray(const types::Type &type,

server/test/framework/Server_Tests.cpp

@@ -2141,4 +2141,42 @@ namespace {
         StatusCountMap expectedStatusCountMap{ { testsgen::TEST_PASSED, 3 } };
         testUtils::checkStatuses(resultsMap, tests);
     }
+
+    TEST_F(Server_Test, Run_Tests_For_Structs_With_Pointers) {
+        fs::path structs_with_pointers_c = getTestFilePath("structs_with_pointers.c");
+        auto request = testUtils::createFileRequest(projectName, suitePath, buildDirRelativePath,
+                                                    srcPaths, structs_with_pointers_c,
+                                                    GrpcUtils::UTBOT_AUTO_TARGET_PATH, true, false);
+        auto testGen = FileTestGen(*request, writer.get(), TESTMODE);
+        Status status = Server::TestsGenServiceImpl::ProcessBaseTestRequest(testGen, writer.get());
+        ASSERT_TRUE(status.ok()) << status.error_message();
+        EXPECT_GE(testUtils::getNumberOfTests(testGen.tests), 3);
+
+        fs::path testsDirPath = getTestFilePath("tests");
+
+        fs::path structs_with_pointers_test_cpp = Paths::sourcePathToTestPath(
+            utbot::ProjectContext(projectName, suitePath, testsDirPath, buildDirRelativePath, clientProjectPath),
+            structs_with_pointers_c);
+        auto testFilter = GrpcUtils::createTestFilterForFile(structs_with_pointers_test_cpp);
+        auto runRequest = testUtils::createCoverageAndResultsRequest(
+            projectName, suitePath, testsDirPath, buildDirRelativePath, std::move(testFilter));
+
+        static auto coverageAndResultsWriter =
+            std::make_unique<ServerCoverageAndResultsWriter>(nullptr);
+        CoverageAndResultsGenerator coverageGenerator{ runRequest.get(),
+                                                       coverageAndResultsWriter.get() };
+        utbot::SettingsContext settingsContext{
+            true, false, 45, 0, false, false, ErrorMode::FAILING, false
+        };
+        coverageGenerator.generate(false, settingsContext);
+
+        EXPECT_FALSE(coverageGenerator.hasExceptions());
+        ASSERT_TRUE(coverageGenerator.getCoverageMap().empty());
+
+        auto resultsMap = coverageGenerator.getTestResultMap();
+        auto tests = coverageGenerator.getTestsToLaunch();
+
+        StatusCountMap expectedStatusCountMap{ { testsgen::TEST_PASSED, 3 } };
+        testUtils::checkStatuses(resultsMap, tests);
+    }
 }

server/test/suites/server/CMakeLists.txt

@@ -25,6 +25,7 @@ add_executable(server
         simple_structs.c
         simple_unions.c
         struct_with_union.c
+        structs_with_pointers.c
         complex_structs.c
         typedefs.c
         types.c

server/test/suites/server/structs_with_pointers.c

@@ -0,0 +1,8 @@
+#include "structs_with_pointers.h"
+
+int process_struct_with_func_pointer(struct MainStruct* str) {
+    if (str && str->inner && str->inner->func_id != 0) {
+        return 1;
+    }
+    return 0;
+}

server/test/suites/server/structs_with_pointers.h

@@ -0,0 +1,17 @@
+#ifndef UNITTESTBOT_STRUCTS_WITH_POINTERS_H
+#define UNITTESTBOT_STRUCTS_WITH_POINTERS_H
+
+typedef int (*some_func)();
+
+struct InnerStruct {
+    some_func func;
+    int func_id;
+};
+
+struct MainStruct {
+    struct InnerStruct* inner;
+};
+
+int process_struct_with_func_pointer(struct MainStruct* str);
+
+#endif // UNITTESTBOT_STRUCTS_WITH_POINTERS_H