aboutsummaryrefslogtreecommitdiffstats
path: root/plugins/reception-plugins/src/test/java/org/onap/policy/distribution/reception/handling/file/TestFileSystemReceptionHandler.java
blob: c36cd363df6b83602377d1ed3d8dba240b0241a0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
/*-
 * ============LICENSE_START=======================================================
 *  Copyright (C) 2018 Intel. All rights reserved.
 *  Copyright (C) 2019-2020, 2022 Nordix Foundation.
 * ================================================================================
 * 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.
 *
 * SPDX-License-Identifier: Apache-2.0
 * ============LICENSE_END=========================================================
 */

package org.onap.policy.distribution.reception.handling.file;

import static org.assertj.core.api.Assertions.assertThatCode;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.verify;

import com.google.gson.GsonBuilder;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.concurrent.atomic.AtomicInteger;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;
import org.mockito.Mockito;
import org.mockito.stubbing.Answer;
import org.onap.policy.common.parameters.ParameterService;
import org.onap.policy.distribution.reception.statistics.DistributionStatisticsManager;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Class to perform unit test of {@link FileSystemReceptionHandler}.
 */
class TestFileSystemReceptionHandler {

    private static final Logger LOGGER = LoggerFactory.getLogger(TestFileSystemReceptionHandler.class);

    @TempDir
    public File tempFolder;

    private FileSystemReceptionHandlerConfigurationParameterGroup pssdConfigParameters;
    private FileSystemReceptionHandler fileSystemHandler;


    /**
     * Setup for the test cases.
     *
     * @throws IOException if it occurs
     * @throws SecurityException if it occurs
     * @throws IllegalArgumentException if it occurs
     */
    @BeforeEach
    final void init() throws IOException, SecurityException, IllegalArgumentException {
        DistributionStatisticsManager.resetAllStatistics();

        final var gson = new GsonBuilder().create();
        pssdConfigParameters = gson.fromJson(new FileReader("src/test/resources/handling-filesystem.json"),
                FileSystemReceptionHandlerConfigurationParameterGroup.class);
        ParameterService.register(pssdConfigParameters);
        fileSystemHandler = new FileSystemReceptionHandler();
    }

    @AfterEach
    void teardown() {
        ParameterService.deregister(pssdConfigParameters);
    }

    @Test
    final void testInit() throws IOException {
        var sypHandler = spy(fileSystemHandler);
        Mockito.doNothing().when(sypHandler).initFileWatcher(Mockito.isA(String.class),
                Mockito.anyInt());
        assertThatCode(() -> sypHandler.initializeReception(pssdConfigParameters.getName()))
            .doesNotThrowAnyException();
    }

    @Test
    final void testDestroy() throws IOException {
        final var sypHandler = spy(fileSystemHandler);
        Mockito.doNothing().when(sypHandler).initFileWatcher(Mockito.isA(String.class),
                Mockito.anyInt());
        assertThatCode(() -> {
            sypHandler.initializeReception(pssdConfigParameters.getName());
            sypHandler.destroy();
        }).doesNotThrowAnyException();
    }

    @Test
    void testMain() throws IOException {
        final var lock = new Object();
        final var watchPath = tempFolder.getAbsolutePath();

        class Processed {
            public boolean processed = false;
        }

        final var cond = new Processed();

        final var sypHandler = Mockito.spy(fileSystemHandler);
        Mockito.doAnswer((Answer<Object>) invocation -> {
            synchronized (lock) {
                cond.processed = true;
                lock.notifyAll();
            }
            return null;
        }).when(sypHandler).createPolicyInputAndCallHandler(Mockito.isA(String.class));

        final var th = new Thread(() -> {
            try {
                sypHandler.initFileWatcher(watchPath, 2);
            } catch (final IOException ex) {
                LOGGER.error("testMain failed", ex);
            }
        });

        th.start();
        try {
            // wait until internal watch service started or counter reached
            final var counter = new AtomicInteger();
            counter.set(0);
            synchronized (lock) {
                while (!sypHandler.isRunning() && counter.getAndIncrement() < 10) {
                    lock.wait(1000);
                }
            }
            Files.copy(Paths.get("src/test/resources/hpaPolicyHugePage.csar"),
                    Paths.get(watchPath + File.separator + "hpaPolicyHugePage.csar"));
            // wait until mock method triggered or counter reached
            counter.set(0);
            synchronized (lock) {
                while (!cond.processed && counter.getAndIncrement() < 10) {
                    lock.wait(1000);
                }
            }
            sypHandler.destroy();
            th.interrupt();
            th.join();
        } catch (final InterruptedException ex) {
            LOGGER.error("testMain failed", ex);
        }
        verify(sypHandler, Mockito.times(1)).createPolicyInputAndCallHandler(Mockito.isA(String.class));

    }
}