diff --git a/userspace/libsinsp/test/filterchecks/evt.cpp b/userspace/libsinsp/test/filterchecks/evt.cpp
index 8e1cfda7b5..c28d2dc4ee 100644
--- a/userspace/libsinsp/test/filterchecks/evt.cpp
+++ b/userspace/libsinsp/test/filterchecks/evt.cpp
@@ -23,15 +23,12 @@ TEST_F(sinsp_with_test_input, EVT_FILTER_is_open_create) {
 
 	open_inspector();
 
-	std::string path = "/home/file.txt";
-	int64_t fd = 3;
-
 	// In the enter event we don't send the `PPM_O_F_CREATED`
 	sinsp_evt* evt = add_event_advance_ts(increasing_ts(),
 	                                      1,
 	                                      PPME_SYSCALL_OPEN_E,
 	                                      3,
-	                                      path.c_str(),
+	                                      sinsp_test_input::open_params::default_path,
 	                                      (uint32_t)PPM_O_RDWR | PPM_O_CREAT,
 	                                      (uint32_t)0);
 	ASSERT_EQ(get_field_as_string(evt, "evt.is_open_create"), "false");
@@ -39,20 +36,12 @@ TEST_F(sinsp_with_test_input, EVT_FILTER_is_open_create) {
 	// The `fdinfo` is not populated in the enter event
 	ASSERT_FALSE(evt->get_fd_info());
 
-	evt = add_event_advance_ts(increasing_ts(),
-	                           1,
-	                           PPME_SYSCALL_OPEN_X,
-	                           6,
-	                           fd,
-	                           path.c_str(),
-	                           (uint32_t)PPM_O_RDWR | PPM_O_CREAT | PPM_O_F_CREATED,
-	                           (uint32_t)0,
-	                           (uint32_t)5,
-	                           (uint64_t)123);
+	uint32_t flags = PPM_O_RDWR | PPM_O_CREAT | PPM_O_F_CREATED;
+	evt = generate_open_x_event(sinsp_test_input::open_params{.flags = flags});
 	ASSERT_EQ(get_field_as_string(evt, "evt.is_open_create"), "true");
 	ASSERT_TRUE(evt->get_fd_info());
 
-	ASSERT_EQ(evt->get_fd_info()->m_openflags, PPM_O_RDWR | PPM_O_CREAT | PPM_O_F_CREATED);
+	ASSERT_EQ(evt->get_fd_info()->m_openflags, flags);
 }
 
 TEST_F(sinsp_with_test_input, EVT_FILTER_is_lower_layer) {
diff --git a/userspace/libsinsp/test/sinsp_with_test_input.cpp b/userspace/libsinsp/test/sinsp_with_test_input.cpp
index fec6b862d6..e6694a132e 100644
--- a/userspace/libsinsp/test/sinsp_with_test_input.cpp
+++ b/userspace/libsinsp/test/sinsp_with_test_input.cpp
@@ -359,6 +359,20 @@ sinsp_evt* sinsp_with_test_input::generate_getcwd_failed_entry_event(int64_t tid
 	                            path.c_str());
 }
 
+sinsp_evt* sinsp_with_test_input::generate_open_x_event(sinsp_test_input::open_params params,
+                                                        int64_t tid_caller) {
+	return add_event_advance_ts(increasing_ts(),
+	                            tid_caller,
+	                            PPME_SYSCALL_OPEN_X,
+	                            6,
+	                            params.fd,
+	                            params.path,
+	                            params.flags,
+	                            params.mode,
+	                            params.dev,
+	                            params.ino);
+}
+
 //=============================== PROCESS GENERATION ===========================
 
 void sinsp_with_test_input::add_thread(const scap_threadinfo& tinfo,
diff --git a/userspace/libsinsp/test/sinsp_with_test_input.h b/userspace/libsinsp/test/sinsp_with_test_input.h
index 547e40da80..5ec82aeffb 100644
--- a/userspace/libsinsp/test/sinsp_with_test_input.h
+++ b/userspace/libsinsp/test/sinsp_with_test_input.h
@@ -34,6 +34,23 @@ limitations under the License.
 #define INIT_PID INIT_TID
 #define INIT_PTID 0
 
+namespace sinsp_test_input {
+struct open_params {
+	static constexpr int32_t default_fd = 4;
+	static constexpr const char* default_path = "/home/file.txt";
+	// Used for some filter checks
+	static constexpr const char* default_directory = "/home";
+	static constexpr const char* default_filename = "file.txt";
+
+	int32_t fd = default_fd;
+	const char* path = default_path;
+	uint32_t flags = 0;
+	uint32_t mode = 0;
+	uint32_t dev = 0;
+	uint64_t ino = 0;
+};
+}  // namespace sinsp_test_input
+
 class sinsp_with_test_input : public ::testing::Test {
 protected:
 	sinsp_with_test_input();
@@ -192,6 +209,8 @@ class sinsp_with_test_input : public ::testing::Test {
 	sinsp_evt* generate_proc_exit_event(int64_t tid_to_remove, int64_t reaper_tid);
 	sinsp_evt* generate_random_event(int64_t tid_caller = INIT_TID);
 	sinsp_evt* generate_getcwd_failed_entry_event(int64_t tid_caller = INIT_TID);
+	sinsp_evt* generate_open_x_event(sinsp_test_input::open_params params = {},
+	                                 int64_t tid_caller = INIT_TID);
 
 	//=============================== PROCESS GENERATION ===========================