Add a smoke test for ImportProcessor.

Bug: 2733143
Change-Id: Iec63217c1b7be04ab0438bb76be96e70dc26e5d6
diff --git a/tests/assets/v21_simple.vcf b/tests/assets/v21_simple.vcf
new file mode 100644
index 0000000..86f4d33
--- /dev/null
+++ b/tests/assets/v21_simple.vcf
@@ -0,0 +1,3 @@
+BEGIN:VCARD
+N:test
+END:VCARD
\ No newline at end of file
diff --git a/tests/src/com/android/contacts/vcard/ImportProcessorTest.java b/tests/src/com/android/contacts/vcard/ImportProcessorTest.java
new file mode 100644
index 0000000..f393448
--- /dev/null
+++ b/tests/src/com/android/contacts/vcard/ImportProcessorTest.java
@@ -0,0 +1,164 @@
+/*
+ * Copyright (C) 2010 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 com.android.contacts.vcard;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.net.Uri;
+import android.test.AndroidTestCase;
+import android.text.TextUtils;
+import android.util.Log;
+
+import com.android.vcard.VCardInterpreter;
+import com.android.vcard.VCardSourceDetector;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.channels.Channels;
+import java.nio.channels.ReadableByteChannel;
+import java.nio.channels.WritableByteChannel;
+import java.util.List;
+
+public class ImportProcessorTest extends AndroidTestCase {
+    private static final String LOG_TAG = "ImportProcessorTest";
+    private ImportProcessor mImportProcessor;
+
+    private String mCopiedFileName;
+
+    // XXX: better way to copy stream?
+    private Uri copyToLocal(final String fileName) throws IOException {
+        final Context context = getContext();
+        // We need to use Context of this unit test runner (not of test to be tested),
+        // as only the former knows assets to be copied.
+        final Context testContext = getTestContext();
+        final ContentResolver resolver = testContext.getContentResolver();
+        mCopiedFileName = fileName;
+        ReadableByteChannel inputChannel = null;
+        WritableByteChannel outputChannel = null;
+        Uri destUri;
+        try {
+            inputChannel = Channels.newChannel(testContext.getAssets().open(fileName));
+            destUri = Uri.parse(context.getFileStreamPath(fileName).toURI().toString());
+            outputChannel =
+                    getContext().openFileOutput(fileName,
+                            Context.MODE_WORLD_WRITEABLE).getChannel();
+            final ByteBuffer buffer = ByteBuffer.allocateDirect(8192);
+            while (inputChannel.read(buffer) != -1) {
+                buffer.flip();
+                outputChannel.write(buffer);
+                buffer.compact();
+            }
+            buffer.flip();
+            while (buffer.hasRemaining()) {
+                outputChannel.write(buffer);
+            }
+        } finally {
+            if (inputChannel != null) {
+                try {
+                    inputChannel.close();
+                } catch (IOException e) {
+                    Log.w(LOG_TAG, "Failed to close inputChannel.");
+                }
+            }
+            if (outputChannel != null) {
+                try {
+                    outputChannel.close();
+                } catch(IOException e) {
+                    Log.w(LOG_TAG, "Failed to close outputChannel");
+                }
+            }
+        }
+        return destUri;
+    }
+
+    @Override
+    public void setUp() {
+        mImportProcessor = new ImportProcessor(getContext());
+        mImportProcessor.ensureInit();
+        mCopiedFileName = null;
+    }
+
+    @Override
+    public void tearDown() {
+        if (!TextUtils.isEmpty(mCopiedFileName)) {
+            getContext().deleteFile(mCopiedFileName);
+            mCopiedFileName = null;
+        }
+    }
+
+    /**
+     * Confirm {@link ImportProcessor#readOneVCard(android.net.Uri, int, String,
+     * com.android.vcard.VCardInterpreter, int[])} successfully handles correct input.
+     */
+    public void testProcessSimple() throws IOException {
+        final Uri uri = copyToLocal("v21_simple.vcf");
+        final int vcardType = VCardSourceDetector.PARSE_TYPE_UNKNOWN;
+        final String charset = null;
+        final VCardInterpreter interpreter = new EmptyVCardInterpreter();
+        final int[] versions = new int[] {
+                ImportVCardActivity.VCARD_VERSION_V21
+        };
+
+        assertTrue(mImportProcessor.readOneVCard(
+                uri, vcardType, charset, interpreter, versions));
+    }
+}
+
+/* package */ class EmptyVCardInterpreter implements VCardInterpreter {
+    @Override
+    public void end() {
+    }
+
+    @Override
+    public void endEntry() {
+    }
+
+    @Override
+    public void endProperty() {
+    }
+
+    @Override
+    public void propertyGroup(String group) {
+    }
+
+    @Override
+    public void propertyName(String name) {
+    }
+
+    @Override
+    public void propertyParamType(String type) {
+    }
+
+    @Override
+    public void propertyParamValue(String value) {
+    }
+
+    @Override
+    public void propertyValues(List<String> values) {
+    }
+
+    @Override
+    public void start() {
+    }
+
+    @Override
+    public void startEntry() {
+    }
+
+    @Override
+    public void startProperty() {
+    }
+}
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