org.apache.flink.statefun.testutils.matchers.StatefulFunctionMatchers Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* to you 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,
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* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.flink.statefun.testutils.matchers;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.flink.statefun.sdk.Address;
import org.apache.flink.statefun.sdk.FunctionType;
import org.apache.flink.statefun.testutils.function.FunctionTestHarness;
import org.hamcrest.Matcher;
/**
* A set of Hamcrest matchers to help check the responses from a {@link FunctionTestHarness}
*
* @see FunctionTestHarness for usage details.
*/
public final class StatefulFunctionMatchers {
private StatefulFunctionMatchers() {
throw new AssertionError();
}
public static MatchersByAddress messagesTo(
Address to, Matcher matcher, Matcher... matchers) {
List> allMatchers = new ArrayList<>(1 + matchers.length);
allMatchers.add(matcher);
allMatchers.addAll(Arrays.asList(matchers));
return new MatchersByAddress(to, allMatchers);
}
/**
* A matcher that checks all the responses sent to a given {@link FunctionType}.
*
* Important: This matcher expects an exact match on the number of responses sent to
* this function.
*
* @param matcher matcher for address.
* @param matchers matchers for addresses.
* @return a matcher that checks all the responses sent to a given {@link FunctionType}.
*/
public static MessagesSentToAddress sent(
MatchersByAddress matcher, MatchersByAddress... matchers) {
Map>> messagesByAddress = new HashMap<>();
messagesByAddress.put(matcher.address, matcher.matchers);
for (MatchersByAddress match : matchers) {
messagesByAddress.put(match.address, match.matchers);
}
return new MessagesSentToAddress(messagesByAddress);
}
/**
* A matcher that checks the function did not send any messages.
*
* @return a matcher that checks the function did not send any messages.
*/
public static SentNothingMatcher sentNothing() {
return new SentNothingMatcher();
}
}