1 package org.apache.maven.surefire.providerapi;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.lang.reflect.InvocationTargetException;
23 import java.util.Iterator;
24 import org.apache.maven.surefire.report.ReporterException;
25 import org.apache.maven.surefire.suite.RunResult;
26 import org.apache.maven.surefire.testset.TestSetFailedException;
27
28 /**
29 * Interface to be implemented by all Surefire providers.
30 * <p/>
31 * NOTE: This class is part of the proposed public api for surefire providers for 2.7. It may
32 * still be subject to changes, even for minor revisions.
33 * <p/>
34 * The api covers this interface and all the types reachable from it. And nothing else.
35 * <p/>
36 * <p/>
37 * Called in one of three ways:
38 * Forkmode = never: getSuites is not called, invoke is called with null parameter
39 * Forkmode = once: getSuites is not called, invoke is called with null parameter
40 * Forkmode anything else: getSuites is called, invoke is called on new provider instance for each item in getSuites
41 * response.
42 *
43 * @author Kristian Rosenvold
44 */
45 public interface SurefireProvider
46 {
47 /**
48 * Determines the number of forks.
49 * <p/>
50 * Called when forkmode is different from "never" or "always", allows the provider to define
51 * how to behave for the fork.
52 *
53 * @return An iterator that will trigger one fork per item
54 */
55 Iterator getSuites();
56
57 /**
58 * Runs a forked test
59 *
60 * @param forkTestSet An item from the iterator in #getSuites. Will be null for forkmode never or always.
61 * When this is non-null, the forked process will run only that test
62 * and probably not scan the classpath
63 * @return A result of the invocation
64 * @throws org.apache.maven.surefire.report.ReporterException
65 * When reporting fails
66 * @throws org.apache.maven.surefire.testset.TestSetFailedException
67 * When testset fails
68 */
69
70 RunResult invoke( Object forkTestSet )
71 throws TestSetFailedException, ReporterException, InvocationTargetException;
72
73 /**
74 * Makes an attempt at cancelling the current run, giving the provider a chance to notify
75 * reporting that the remaining tests have been cancelled due to timeout.
76 * <p/>
77 * If the provider thinks it can terminate properly it is the responsibility of
78 * the invoke method to return a RunResult with a booter code of failure.
79 * <p/>
80 * It is up to the provider to find out how to implement this method properly.
81 * A provider may also choose to not do anything at all in this method,
82 * which means surefire will kill the forked process soon afterwards anyway.
83 * <p/>
84 * Will be called on a different thread than the one calling invoke.
85 */
86 // Todo: Need to think a lot closer about how/if this works and if there is a use case for it.
87 // Killing a process is slightly non-deterministic
88 // And it
89 void cancel();
90 }