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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package org.chromium.mojo.bindings;
import android.support.test.filters.SmallTest;
import org.chromium.base.test.util.UrlUtils;
import org.chromium.mojo.HandleMock;
import org.chromium.mojo.MojoTestCase;
import org.chromium.mojo.bindings.test.mojom.mojo.ConformanceTestInterface;
import org.chromium.mojo.bindings.test.mojom.mojo.IntegrationTestInterface;
import org.chromium.mojo.bindings.test.mojom.mojo.IntegrationTestInterfaceTestHelper;
import org.chromium.mojo.system.Handle;
import org.chromium.mojo.system.impl.CoreImpl;
import java.io.File;
import java.io.FileFilter;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
/**
* Testing validation upon deserialization using the interfaces defined in the
* mojo/public/interfaces/bindings/tests/validation_test_interfaces.mojom file.
* <p>
* One needs to pass '--test_data=bindings:{path to mojo/public/interfaces/bindings/tests/data}' to
* the test_runner script for this test to find the validation data it needs.
*/
public class ValidationTest extends MojoTestCase {
/**
* The path where validation test data is.
*/
private static final File VALIDATION_TEST_DATA_PATH =
new File(UrlUtils.getIsolatedTestFilePath(
"mojo/public/interfaces/bindings/tests/data/validation"));
/**
* The data needed for a validation test.
*/
private static class TestData {
public File dataFile;
public ValidationTestUtil.Data inputData;
public String expectedResult;
}
private static class DataFileFilter implements FileFilter {
private final String mPrefix;
public DataFileFilter(String prefix) {
this.mPrefix = prefix;
}
@Override
public boolean accept(File pathname) {
// TODO(yzshen, qsr): skip some interface versioning tests.
if (pathname.getName().startsWith("conformance_mthd13_good_2")) {
return false;
}
return pathname.isFile() && pathname.getName().startsWith(mPrefix)
&& pathname.getName().endsWith(".data");
}
}
private static String getStringContent(File f) throws FileNotFoundException {
try (Scanner scanner = new Scanner(f)) {
scanner.useDelimiter("\\Z");
StringBuilder result = new StringBuilder();
while (scanner.hasNext()) {
result.append(scanner.next());
}
return result.toString().trim();
}
}
private static List<TestData> getTestData(String prefix)
throws FileNotFoundException {
List<TestData> results = new ArrayList<TestData>();
// Fail if the test data is not present.
if (!VALIDATION_TEST_DATA_PATH.isDirectory()) {
fail("No test data directory found. "
+ "Expected directory at: " + VALIDATION_TEST_DATA_PATH);
}
File[] files = VALIDATION_TEST_DATA_PATH.listFiles(new DataFileFilter(prefix));
if (files != null) {
for (File dataFile : files) {
File resultFile = new File(dataFile.getParent(),
dataFile.getName().replaceFirst("\\.data$", ".expected"));
TestData testData = new TestData();
testData.dataFile = dataFile;
testData.inputData = ValidationTestUtil.parseData(getStringContent(dataFile));
testData.expectedResult = getStringContent(resultFile);
results.add(testData);
}
}
return results;
}
/**
* Runs all the test with the given prefix on the given {@link MessageReceiver}.
*/
private static void runTest(String prefix, MessageReceiver messageReceiver)
throws FileNotFoundException {
List<TestData> testData = getTestData(prefix);
for (TestData test : testData) {
assertNull("Unable to read: " + test.dataFile.getName()
+ ": " + test.inputData.getErrorMessage(),
test.inputData.getErrorMessage());
List<Handle> handles = new ArrayList<Handle>();
for (int i = 0; i < test.inputData.getHandlesCount(); ++i) {
handles.add(new HandleMock());
}
Message message = new Message(test.inputData.getData(), handles);
boolean passed = messageReceiver.accept(message);
if (passed && !test.expectedResult.equals("PASS")) {
fail("Input: " + test.dataFile.getName()
+ ": The message should have been refused. Expected error: "
+ test.expectedResult);
}
if (!passed && test.expectedResult.equals("PASS")) {
fail("Input: " + test.dataFile.getName()
+ ": The message should have been accepted.");
}
}
}
private static class RoutingMessageReceiver implements MessageReceiver {
private final MessageReceiverWithResponder mRequest;
private final MessageReceiver mResponse;
private RoutingMessageReceiver(MessageReceiverWithResponder request,
MessageReceiver response) {
this.mRequest = request;
this.mResponse = response;
}
/**
* @see MessageReceiver#accept(Message)
*/
@Override
public boolean accept(Message message) {
try {
MessageHeader header = message.asServiceMessage().getHeader();
if (header.hasFlag(MessageHeader.MESSAGE_IS_RESPONSE_FLAG)) {
return mResponse.accept(message);
} else {
return mRequest.acceptWithResponder(message, new SinkMessageReceiver());
}
} catch (DeserializationException e) {
return false;
}
}
/**
* @see MessageReceiver#close()
*/
@Override
public void close() {
}
}
/**
* A trivial message receiver that refuses all messages it receives.
*/
private static class SinkMessageReceiver implements MessageReceiverWithResponder {
@Override
public boolean accept(Message message) {
return true;
}
@Override
public void close() {
}
@Override
public boolean acceptWithResponder(Message message, MessageReceiver responder) {
return true;
}
}
/**
* Testing the conformance suite.
*/
@SmallTest
public void testConformance() throws FileNotFoundException {
runTest("conformance_",
ConformanceTestInterface.MANAGER.buildStub(CoreImpl.getInstance(),
ConformanceTestInterface.MANAGER.buildProxy(
CoreImpl.getInstance(), new SinkMessageReceiver())));
}
/**
* Testing the integration suite for message headers.
*/
@SmallTest
public void testIntegrationMessageHeader() throws FileNotFoundException {
runTest("integration_msghdr_",
new RoutingMessageReceiver(IntegrationTestInterface.MANAGER.buildStub(null,
IntegrationTestInterface.MANAGER.buildProxy(null,
new SinkMessageReceiver())),
IntegrationTestInterfaceTestHelper
.newIntegrationTestInterfaceMethodCallback()));
}
/**
* Testing the integration suite for request messages.
*/
@SmallTest
public void testIntegrationRequestMessage() throws FileNotFoundException {
runTest("integration_intf_rqst_",
new RoutingMessageReceiver(IntegrationTestInterface.MANAGER.buildStub(null,
IntegrationTestInterface.MANAGER.buildProxy(null,
new SinkMessageReceiver())),
IntegrationTestInterfaceTestHelper
.newIntegrationTestInterfaceMethodCallback()));
}
/**
* Testing the integration suite for response messages.
*/
@SmallTest
public void testIntegrationResponseMessage() throws FileNotFoundException {
runTest("integration_intf_resp_",
new RoutingMessageReceiver(IntegrationTestInterface.MANAGER.buildStub(null,
IntegrationTestInterface.MANAGER.buildProxy(null,
new SinkMessageReceiver())),
IntegrationTestInterfaceTestHelper
.newIntegrationTestInterfaceMethodCallback()));
}
}
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