diff --git a/libs/androidfw/tests/ApkParsing_test.cpp b/libs/androidfw/tests/ApkParsing_test.cpp
new file mode 100644
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+++ b/libs/androidfw/tests/ApkParsing_test.cpp
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+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "androidfw/ApkParsing.h"
+
+#include "android-base/test_utils.h"
+
+#include "TestHelpers.h"
+
+using ::testing::Eq;
+using ::testing::IsNull;
+using ::testing::NotNull;
+
+namespace android {
+TEST(ApkParsingTest, ValidArm64Path) {
+  const char* path = "lib/arm64-v8a/library.so";
+  auto lastSlash = util::ValidLibraryPathLastSlash(path, false, false);
+  ASSERT_THAT(lastSlash, NotNull());
+  ASSERT_THAT(lastSlash, Eq(path + 13));
+}
+
+TEST(ApkParsingTest, ValidArm64PathButSuppressed) {
+  const char* path = "lib/arm64-v8a/library.so";
+  auto lastSlash = util::ValidLibraryPathLastSlash(path, true, false);
+  ASSERT_THAT(lastSlash, IsNull());
+}
+
+TEST(ApkParsingTest, ValidArm32Path) {
+  const char* path = "lib/armeabi-v7a/library.so";
+  auto lastSlash = util::ValidLibraryPathLastSlash(path, false, false);
+  ASSERT_THAT(lastSlash, NotNull());
+  ASSERT_THAT(lastSlash, Eq(path + 15));
+}
+
+TEST(ApkParsingTest, InvalidMustStartWithLib) {
+  const char* path = "lib/arm64-v8a/random.so";
+  auto lastSlash = util::ValidLibraryPathLastSlash(path, false, false);
+  ASSERT_THAT(lastSlash, IsNull());
+}
+
+TEST(ApkParsingTest, InvalidMustEndInSo) {
+  const char* path = "lib/arm64-v8a/library.txt";
+  auto lastSlash = util::ValidLibraryPathLastSlash(path, false, false);
+  ASSERT_THAT(lastSlash, IsNull());
+}
+
+TEST(ApkParsingTest, InvalidCharacter) {
+  const char* path = "lib/arm64-v8a/lib#.so";
+  auto lastSlash = util::ValidLibraryPathLastSlash(path, false, false);
+  ASSERT_THAT(lastSlash, IsNull());
+}
+
+TEST(ApkParsingTest, InvalidSubdirectories) {
+  const char* path = "lib/arm64-v8a/anything/library.so";
+  auto lastSlash = util::ValidLibraryPathLastSlash(path, false, false);
+  ASSERT_THAT(lastSlash, IsNull());
+}
+}
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