1 files changed, 77 insertions, 0 deletions
diff --git a/tests/native/service/src/com/android/telephony/imsmedia/lib/libimsmedia/core/utils/ImsMediaBitWriterTest.cpp b/tests/native/service/src/com/android/telephony/imsmedia/lib/libimsmedia/core/utils/ImsMediaBitWriterTest.cpp
new file mode 100644
index 00000000..af10eaa2
--- /dev/null
+++ b/tests/native/service/src/com/android/telephony/imsmedia/lib/libimsmedia/core/utils/ImsMediaBitWriterTest.cpp
@@ -0,0 +1,77 @@
+/**
+ * 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 <gtest/gtest.h>
+#include <ImsMediaBitWriter.h>
+#include <string.h>
+
+class ImsMediaBitWriterTest : public ::testing::Test
+{
+public:
+protected:
+    virtual void SetUp() override {}
+
+    virtual void TearDown() override {}
+};
+
+TEST_F(ImsMediaBitWriterTest, SetBufferAndWriteBitTest)
+{
+    uint8_t testBuffer[] = {1, 2, 4, 8, 16, 32, 64, 128};
+    uint8_t dstBuffer[8] = {0};
+
+    ImsMediaBitWriter writer;
+
+    EXPECT_EQ(writer.Write(0, 24), false);
+    writer.SetBuffer(dstBuffer, sizeof(dstBuffer));
+    EXPECT_EQ(writer.Write(0, 32), false);
+
+    for (int32_t i = 0; i < sizeof(testBuffer); i++)
+    {
+        EXPECT_EQ(writer.Write(testBuffer[i], 8), true);
+    }
+
+    EXPECT_EQ(writer.Write(0, 8), false);
+    EXPECT_EQ(memcmp(dstBuffer, testBuffer, sizeof(testBuffer)), 0);
+}
+
+TEST_F(ImsMediaBitWriterTest, SetBufferAndWriteByteTest)
+{
+    uint8_t testBuffer[] = {1, 2, 4, 8, 16, 32, 64, 128};
+    uint8_t dstBuffer[8] = {0};
+
+    ImsMediaBitWriter writer;
+    writer.SetBuffer(dstBuffer, sizeof(dstBuffer));
+
+    for (int32_t i = 0; i < sizeof(testBuffer); i++)
+    {
+        EXPECT_EQ(writer.WriteByteBuffer(testBuffer + i, 8), true);
+    }
+
+    EXPECT_EQ(memcmp(dstBuffer, testBuffer, sizeof(testBuffer)), 0);
+}
+
+TEST_F(ImsMediaBitWriterTest, SetBufferAndSeekToWriteTest)
+{
+    uint8_t testBuffer[] = {1, 2, 4, 8, 16, 32, 64, 128};
+    uint8_t dstBuffer[8] = {1, 2, 4, 8};
+
+    ImsMediaBitWriter writer;
+    writer.SetBuffer(dstBuffer, sizeof(dstBuffer));
+    writer.Seek(32);
+    writer.WriteByteBuffer(testBuffer + 4, 32);
+
+    EXPECT_EQ(memcmp(dstBuffer, testBuffer, sizeof(testBuffer)), 0);
+}