1 files changed, 119 insertions, 0 deletions
diff --git a/nfc/tests/src/android/nfc/tech/NfcBTest.java b/nfc/tests/src/android/nfc/tech/NfcBTest.java
new file mode 100644
index 000000000000..98d6070e760c
--- /dev/null
+++ b/nfc/tests/src/android/nfc/tech/NfcBTest.java
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2024 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.
+ */
+
+package android.nfc.tech;
+
+import static android.nfc.tech.NfcB.EXTRA_APPDATA;
+import static android.nfc.tech.NfcB.EXTRA_PROTINFO;
+
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.nfc.INfcTag;
+import android.nfc.Tag;
+import android.nfc.TransceiveResult;
+import android.os.Bundle;
+import android.os.RemoteException;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+import java.io.IOException;
+
+public class NfcBTest {
+    private final byte[] mSampleAppDate = new byte[] {1, 2, 3};
+    private final byte[] mSampleProtInfo = new byte[] {3, 2, 1};
+    @Mock
+    private Tag mMockTag;
+    @Mock
+    private Bundle mMockBundle;
+    @Mock
+    private INfcTag mMockTagService;
+    private NfcB mNfcB;
+
+    @Before
+    public void setUp() throws RemoteException {
+        MockitoAnnotations.initMocks(this);
+        when(mMockBundle.getByteArray(EXTRA_APPDATA)).thenReturn(mSampleAppDate);
+        when(mMockBundle.getByteArray(EXTRA_PROTINFO)).thenReturn(mSampleProtInfo);
+        when(mMockTag.getTechExtras(TagTechnology.NFC_B)).thenReturn(mMockBundle);
+
+        mNfcB = new NfcB(mMockTag);
+    }
+
+    @Test
+    public void testGetApplicationData() {
+        assertNotNull(mNfcB.getApplicationData());
+    }
+
+    @Test
+    public void testGetProtocolInfo() {
+        assertNotNull(mNfcB.getProtocolInfo());
+    }
+
+    @Test
+    public void testGetNfcBInstance() {
+        Tag tag = mock(Tag.class);
+        when(tag.hasTech(TagTechnology.NFC_B)).thenReturn(true);
+        when(tag.getTechExtras(TagTechnology.NFC_B)).thenReturn(mMockBundle);
+
+        assertNotNull(NfcB.get(tag));
+        verify(tag).hasTech(TagTechnology.NFC_B);
+        verify(tag).getTechExtras(TagTechnology.NFC_B);
+    }
+
+    @Test
+    public void testGetNfcBNullInstance() {
+        Tag tag = mock(Tag.class);
+        when(tag.hasTech(TagTechnology.NFC_B)).thenReturn(false);
+
+        assertNull(NfcB.get(tag));
+        verify(tag).hasTech(TagTechnology.NFC_B);
+        verify(tag, never()).getTechExtras(TagTechnology.NFC_B);
+    }
+
+
+    @Test
+    public void testTransceive() throws IOException, RemoteException {
+        byte[] sampleData = new byte[] {1, 2, 3, 4, 5};
+        TransceiveResult mockTransceiveResult = mock(TransceiveResult.class);
+        when(mMockTag.getConnectedTechnology()).thenReturn(TagTechnology.NFC_B);
+        when(mMockTag.getTagService()).thenReturn(mMockTagService);
+        when(mMockTag.getServiceHandle()).thenReturn(1);
+        when(mMockTagService.transceive(1, sampleData, true))
+                .thenReturn(mockTransceiveResult);
+        when(mockTransceiveResult.getResponseOrThrow()).thenReturn(sampleData);
+
+        mNfcB.transceive(sampleData);
+        verify(mMockTag).getTagService();
+        verify(mMockTag).getServiceHandle();
+    }
+
+    @Test
+    public void testGetMaxTransceiveLength() throws RemoteException {
+        when(mMockTag.getTagService()).thenReturn(mMockTagService);
+        when(mMockTagService.getMaxTransceiveLength(TagTechnology.NFC_B)).thenReturn(1);
+
+        mNfcB.getMaxTransceiveLength();
+        verify(mMockTag).getTagService();
+    }
+}