/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * 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, 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 org.eclipse.aether.internal.impl;

import java.io.File;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.eclipse.aether.DefaultRepositorySystemSession;
import org.eclipse.aether.RepositoryEvent;
import org.eclipse.aether.RepositoryEvent.EventType;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.artifact.Artifact;
import org.eclipse.aether.artifact.ArtifactProperties;
import org.eclipse.aether.artifact.DefaultArtifact;
import org.eclipse.aether.impl.UpdateCheckManager;
import org.eclipse.aether.impl.VersionResolver;
import org.eclipse.aether.internal.impl.filter.DefaultRemoteRepositoryFilterManager;
import org.eclipse.aether.internal.impl.filter.Filters;
import org.eclipse.aether.internal.test.util.TestFileProcessor;
import org.eclipse.aether.internal.test.util.TestFileUtils;
import org.eclipse.aether.internal.test.util.TestLocalRepositoryManager;
import org.eclipse.aether.internal.test.util.TestUtils;
import org.eclipse.aether.metadata.Metadata;
import org.eclipse.aether.repository.LocalArtifactRegistration;
import org.eclipse.aether.repository.LocalArtifactRequest;
import org.eclipse.aether.repository.LocalArtifactResult;
import org.eclipse.aether.repository.LocalMetadataRegistration;
import org.eclipse.aether.repository.LocalMetadataRequest;
import org.eclipse.aether.repository.LocalMetadataResult;
import org.eclipse.aether.repository.LocalRepository;
import org.eclipse.aether.repository.LocalRepositoryManager;
import org.eclipse.aether.repository.RemoteRepository;
import org.eclipse.aether.repository.RepositoryPolicy;
import org.eclipse.aether.repository.WorkspaceReader;
import org.eclipse.aether.repository.WorkspaceRepository;
import org.eclipse.aether.resolution.ArtifactRequest;
import org.eclipse.aether.resolution.ArtifactResolutionException;
import org.eclipse.aether.resolution.ArtifactResult;
import org.eclipse.aether.resolution.VersionRequest;
import org.eclipse.aether.resolution.VersionResolutionException;
import org.eclipse.aether.resolution.VersionResult;
import org.eclipse.aether.spi.connector.ArtifactDownload;
import org.eclipse.aether.spi.connector.MetadataDownload;
import org.eclipse.aether.spi.connector.filter.RemoteRepositoryFilterSource;
import org.eclipse.aether.transfer.ArtifactNotFoundException;
import org.eclipse.aether.transfer.ArtifactTransferException;
import org.eclipse.aether.util.repository.SimpleResolutionErrorPolicy;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import static org.junit.Assert.*;

/**
 */
public class DefaultArtifactResolverTest {
    private DefaultArtifactResolver resolver;

    private DefaultRepositorySystemSession session;

    private TestLocalRepositoryManager lrm;

    private StubRepositoryConnectorProvider repositoryConnectorProvider;

    private Artifact artifact;

    private RecordingRepositoryConnector connector;

    private HashMap<String, RemoteRepositoryFilterSource> remoteRepositoryFilterSources;

    private DefaultRemoteRepositoryFilterManager remoteRepositoryFilterManager;

    @Before
    public void setup() {
        remoteRepositoryFilterSources = new HashMap<>();
        remoteRepositoryFilterManager = new DefaultRemoteRepositoryFilterManager(remoteRepositoryFilterSources);

        UpdateCheckManager updateCheckManager = new StaticUpdateCheckManager(true);
        repositoryConnectorProvider = new StubRepositoryConnectorProvider();
        VersionResolver versionResolver = new StubVersionResolver();
        session = TestUtils.newSession();
        lrm = (TestLocalRepositoryManager) session.getLocalRepositoryManager();
        resolver = new DefaultArtifactResolver();
        resolver.setFileProcessor(new TestFileProcessor());
        resolver.setRepositoryEventDispatcher(new StubRepositoryEventDispatcher());
        resolver.setVersionResolver(versionResolver);
        resolver.setUpdateCheckManager(updateCheckManager);
        resolver.setRepositoryConnectorProvider(repositoryConnectorProvider);
        resolver.setRemoteRepositoryManager(new StubRemoteRepositoryManager());
        resolver.setSyncContextFactory(new StubSyncContextFactory());
        resolver.setOfflineController(new DefaultOfflineController());
        resolver.setArtifactResolverPostProcessors(Collections.emptyMap());
        resolver.setRemoteRepositoryFilterManager(remoteRepositoryFilterManager);

        artifact = new DefaultArtifact("gid", "aid", "", "ext", "ver");

        connector = new RecordingRepositoryConnector();
        repositoryConnectorProvider.setConnector(connector);
    }

    @After
    public void teardown() throws Exception {
        if (session.getLocalRepository() != null) {
            TestFileUtils.deleteFile(session.getLocalRepository().getBasedir());
        }
    }

    @Test
    public void testResolveLocalArtifactSuccessful() throws IOException, ArtifactResolutionException {
        File tmpFile = TestFileUtils.createTempFile("tmp");
        Map<String, String> properties = new HashMap<>();
        properties.put(ArtifactProperties.LOCAL_PATH, tmpFile.getAbsolutePath());
        artifact = artifact.setProperties(properties);

        ArtifactRequest request = new ArtifactRequest(artifact, null, "");
        ArtifactResult result = resolver.resolveArtifact(session, request);

        assertTrue(result.getExceptions().isEmpty());

        Artifact resolved = result.getArtifact();
        assertNotNull(resolved.getFile());
        resolved = resolved.setFile(null);

        assertEquals(artifact, resolved);
    }

    @Test
    public void testResolveLocalArtifactUnsuccessful() throws IOException {
        File tmpFile = TestFileUtils.createTempFile("tmp");
        Map<String, String> properties = new HashMap<>();
        properties.put(ArtifactProperties.LOCAL_PATH, tmpFile.getAbsolutePath());
        artifact = artifact.setProperties(properties);

        tmpFile.delete();

        ArtifactRequest request = new ArtifactRequest(artifact, null, "");

        try {
            resolver.resolveArtifact(session, request);
            fail("expected exception");
        } catch (ArtifactResolutionException e) {
            assertNotNull(e.getResults());
            assertEquals(1, e.getResults().size());

            ArtifactResult result = e.getResults().get(0);

            assertSame(request, result.getRequest());

            assertFalse(result.getExceptions().isEmpty());
            assertTrue(result.getExceptions().get(0) instanceof ArtifactNotFoundException);

            Artifact resolved = result.getArtifact();
            assertNull(resolved);
        }
    }

    @Test
    public void testResolveRemoteArtifact() throws ArtifactResolutionException {
        connector.setExpectGet(artifact);

        ArtifactRequest request = new ArtifactRequest(artifact, null, "");
        request.addRepository(new RemoteRepository.Builder("id", "default", "file:///").build());

        ArtifactResult result = resolver.resolveArtifact(session, request);

        assertTrue(result.getExceptions().isEmpty());

        Artifact resolved = result.getArtifact();
        assertNotNull(resolved.getFile());

        resolved = resolved.setFile(null);
        assertEquals(artifact, resolved);

        connector.assertSeenExpected();
    }

    @Test
    public void testResolveRemoteArtifactUnsuccessful() {
        RecordingRepositoryConnector connector = new RecordingRepositoryConnector() {

            @Override
            public void get(
                    Collection<? extends ArtifactDownload> artifactDownloads,
                    Collection<? extends MetadataDownload> metadataDownloads) {
                super.get(artifactDownloads, metadataDownloads);
                ArtifactDownload download = artifactDownloads.iterator().next();
                ArtifactTransferException exception =
                        new ArtifactNotFoundException(download.getArtifact(), null, "not found");
                download.setException(exception);
            }
        };

        connector.setExpectGet(artifact);
        repositoryConnectorProvider.setConnector(connector);

        ArtifactRequest request = new ArtifactRequest(artifact, null, "");
        request.addRepository(new RemoteRepository.Builder("id", "default", "file:///").build());

        try {
            resolver.resolveArtifact(session, request);
            fail("expected exception");
        } catch (ArtifactResolutionException e) {
            connector.assertSeenExpected();
            assertNotNull(e.getResults());
            assertEquals(1, e.getResults().size());

            ArtifactResult result = e.getResults().get(0);

            assertSame(request, result.getRequest());

            assertFalse(result.getExceptions().isEmpty());
            assertTrue(result.getExceptions().get(0) instanceof ArtifactNotFoundException);

            Artifact resolved = result.getArtifact();
            assertNull(resolved);
        }
    }

    @Test
    public void testResolveRemoteArtifactAlwaysAcceptFilter() throws ArtifactResolutionException {
        remoteRepositoryFilterSources.put("filter1", Filters.neverAcceptFrom("invalid repo id"));
        remoteRepositoryFilterSources.put("filter2", Filters.alwaysAccept());
        connector.setExpectGet(artifact);

        ArtifactRequest request = new ArtifactRequest(artifact, null, "");
        request.addRepository(new RemoteRepository.Builder("id", "default", "file:///").build());

        ArtifactResult result = resolver.resolveArtifact(session, request);

        assertTrue(result.getExceptions().isEmpty());

        Artifact resolved = result.getArtifact();
        assertNotNull(resolved.getFile());

        resolved = resolved.setFile(null);
        assertEquals(artifact, resolved);

        connector.assertSeenExpected();
    }

    @Test
    public void testResolveRemoteArtifactNeverAcceptFilter() {
        remoteRepositoryFilterSources.put("filter1", Filters.neverAcceptFrom("invalid repo id"));
        remoteRepositoryFilterSources.put("filter2", Filters.neverAccept());
        // connector.setExpectGet( artifact ); // should not see it

        ArtifactRequest request = new ArtifactRequest(artifact, null, "project");
        request.addRepository(new RemoteRepository.Builder("id", "default", "file:///").build());

        try {
            resolver.resolveArtifact(session, request);
            fail("expected exception");
        } catch (ArtifactResolutionException e) {
            connector.assertSeenExpected();
            assertNotNull(e.getResults());
            assertEquals(1, e.getResults().size());

            ArtifactResult result = e.getResults().get(0);

            assertSame(request, result.getRequest());

            assertFalse(result.getExceptions().isEmpty());
            assertTrue(result.getExceptions().get(0) instanceof ArtifactNotFoundException);
            assertEquals("never-accept", result.getExceptions().get(0).getMessage());

            Artifact resolved = result.getArtifact();
            assertNull(resolved);
        }
    }

    @Test
    public void testResolveRemoteArtifactAlwaysAcceptFromRepoFilter() throws ArtifactResolutionException {
        remoteRepositoryFilterSources.put("filter1", Filters.alwaysAcceptFrom("id"));
        connector.setExpectGet(artifact);

        ArtifactRequest request = new ArtifactRequest(artifact, null, "");
        request.addRepository(new RemoteRepository.Builder("id", "default", "file:///").build());

        ArtifactResult result = resolver.resolveArtifact(session, request);

        assertTrue(result.getExceptions().isEmpty());

        Artifact resolved = result.getArtifact();
        assertNotNull(resolved.getFile());

        resolved = resolved.setFile(null);
        assertEquals(artifact, resolved);

        connector.assertSeenExpected();
    }

    @Test
    public void testResolveRemoteArtifactNeverAcceptFilterFromRepo() {
        remoteRepositoryFilterSources.put("filter1", Filters.neverAcceptFrom("id"));
        // connector.setExpectGet( artifact ); // should not see it

        ArtifactRequest request = new ArtifactRequest(artifact, null, "project");
        request.addRepository(new RemoteRepository.Builder("id", "default", "file:///").build());

        try {
            resolver.resolveArtifact(session, request);
            fail("expected exception");
        } catch (ArtifactResolutionException e) {
            connector.assertSeenExpected();
            assertNotNull(e.getResults());
            assertEquals(1, e.getResults().size());

            ArtifactResult result = e.getResults().get(0);

            assertSame(request, result.getRequest());

            assertFalse(result.getExceptions().isEmpty());
            assertTrue(result.getExceptions().get(0) instanceof ArtifactNotFoundException);
            assertEquals("never-accept-id", result.getExceptions().get(0).getMessage());

            Artifact resolved = result.getArtifact();
            assertNull(resolved);
        }
    }

    @Test
    public void testArtifactNotFoundCache() throws Exception {
        RecordingRepositoryConnector connector = new RecordingRepositoryConnector() {
            @Override
            public void get(
                    Collection<? extends ArtifactDownload> artifactDownloads,
                    Collection<? extends MetadataDownload> metadataDownloads) {
                super.get(artifactDownloads, metadataDownloads);
                for (ArtifactDownload download : artifactDownloads) {
                    download.getFile().delete();
                    ArtifactTransferException exception =
                            new ArtifactNotFoundException(download.getArtifact(), null, "not found");
                    download.setException(exception);
                }
            }
        };

        repositoryConnectorProvider.setConnector(connector);
        resolver.setUpdateCheckManager(new DefaultUpdateCheckManager()
                .setUpdatePolicyAnalyzer(new DefaultUpdatePolicyAnalyzer())
                .setTrackingFileManager(new DefaultTrackingFileManager()));

        session.setResolutionErrorPolicy(new SimpleResolutionErrorPolicy(true, false));
        session.setUpdatePolicy(RepositoryPolicy.UPDATE_POLICY_NEVER);

        RemoteRepository remoteRepo = new RemoteRepository.Builder("id", "default", "file:///").build();

        Artifact artifact1 = artifact;
        Artifact artifact2 = artifact.setVersion("ver2");

        ArtifactRequest request1 = new ArtifactRequest(artifact1, Arrays.asList(remoteRepo), "");
        ArtifactRequest request2 = new ArtifactRequest(artifact2, Arrays.asList(remoteRepo), "");

        connector.setExpectGet(artifact1, artifact2);
        try {
            resolver.resolveArtifacts(session, Arrays.asList(request1, request2));
            fail("expected exception");
        } catch (ArtifactResolutionException e) {
            connector.assertSeenExpected();
        }

        TestFileUtils.writeString(
                new File(lrm.getRepository().getBasedir(), lrm.getPathForLocalArtifact(artifact2)), "artifact");
        lrm.setArtifactAvailability(artifact2, false);

        DefaultUpdateCheckManagerTest.resetSessionData(session);
        connector.resetActual();
        connector.setExpectGet(new Artifact[0]);
        try {
            resolver.resolveArtifacts(session, Arrays.asList(request1, request2));
            fail("expected exception");
        } catch (ArtifactResolutionException e) {
            connector.assertSeenExpected();
            for (ArtifactResult result : e.getResults()) {
                Throwable t = result.getExceptions().get(0);
                assertTrue(t.toString(), t instanceof ArtifactNotFoundException);
                assertTrue(t.toString(), t.getMessage().contains("cached"));
            }
        }
    }

    @Test
    public void testResolveFromWorkspace() throws IOException, ArtifactResolutionException {
        WorkspaceReader workspace = new WorkspaceReader() {

            public WorkspaceRepository getRepository() {
                return new WorkspaceRepository("default");
            }

            public List<String> findVersions(Artifact artifact) {
                return Arrays.asList(artifact.getVersion());
            }

            public File findArtifact(Artifact artifact) {
                try {
                    return TestFileUtils.createTempFile(artifact.toString());
                } catch (IOException e) {
                    throw new RuntimeException(e.getMessage(), e);
                }
            }
        };
        session.setWorkspaceReader(workspace);

        ArtifactRequest request = new ArtifactRequest(artifact, null, "");
        request.addRepository(new RemoteRepository.Builder("id", "default", "file:///").build());

        ArtifactResult result = resolver.resolveArtifact(session, request);

        assertTrue(result.getExceptions().isEmpty());

        Artifact resolved = result.getArtifact();
        assertNotNull(resolved.getFile());

        assertEquals(resolved.toString(), TestFileUtils.readString(resolved.getFile()));

        resolved = resolved.setFile(null);
        assertEquals(artifact, resolved);

        connector.assertSeenExpected();
    }

    @Test
    public void testResolveFromWorkspaceFallbackToRepository() throws ArtifactResolutionException {
        WorkspaceReader workspace = new WorkspaceReader() {

            public WorkspaceRepository getRepository() {
                return new WorkspaceRepository("default");
            }

            public List<String> findVersions(Artifact artifact) {
                return Arrays.asList(artifact.getVersion());
            }

            public File findArtifact(Artifact artifact) {
                return null;
            }
        };
        session.setWorkspaceReader(workspace);

        connector.setExpectGet(artifact);
        repositoryConnectorProvider.setConnector(connector);

        ArtifactRequest request = new ArtifactRequest(artifact, null, "");
        request.addRepository(new RemoteRepository.Builder("id", "default", "file:///").build());

        ArtifactResult result = resolver.resolveArtifact(session, request);

        assertTrue("exception on resolveArtifact", result.getExceptions().isEmpty());

        Artifact resolved = result.getArtifact();
        assertNotNull(resolved.getFile());

        resolved = resolved.setFile(null);
        assertEquals(artifact, resolved);

        connector.assertSeenExpected();
    }

    @Test
    public void testRepositoryEventsSuccessfulLocal() throws ArtifactResolutionException, IOException {
        RecordingRepositoryListener listener = new RecordingRepositoryListener();
        session.setRepositoryListener(listener);

        File tmpFile = TestFileUtils.createTempFile("tmp");
        Map<String, String> properties = new HashMap<>();
        properties.put(ArtifactProperties.LOCAL_PATH, tmpFile.getAbsolutePath());
        artifact = artifact.setProperties(properties);

        ArtifactRequest request = new ArtifactRequest(artifact, null, "");
        resolver.resolveArtifact(session, request);

        List<RepositoryEvent> events = listener.getEvents();
        assertEquals(2, events.size());
        RepositoryEvent event = events.get(0);
        assertEquals(EventType.ARTIFACT_RESOLVING, event.getType());
        assertNull(event.getException());
        assertEquals(artifact, event.getArtifact());

        event = events.get(1);
        assertEquals(EventType.ARTIFACT_RESOLVED, event.getType());
        assertNull(event.getException());
        assertEquals(artifact, event.getArtifact().setFile(null));
    }

    @Test
    public void testRepositoryEventsUnsuccessfulLocal() {
        RecordingRepositoryListener listener = new RecordingRepositoryListener();
        session.setRepositoryListener(listener);

        Map<String, String> properties = new HashMap<>();
        properties.put(ArtifactProperties.LOCAL_PATH, "doesnotexist");
        artifact = artifact.setProperties(properties);

        ArtifactRequest request = new ArtifactRequest(artifact, null, "");
        try {
            resolver.resolveArtifact(session, request);
            fail("expected exception");
        } catch (ArtifactResolutionException ignored) {
        }

        List<RepositoryEvent> events = listener.getEvents();
        assertEquals(2, events.size());

        RepositoryEvent event = events.get(0);
        assertEquals(artifact, event.getArtifact());
        assertEquals(EventType.ARTIFACT_RESOLVING, event.getType());

        event = events.get(1);
        assertEquals(artifact, event.getArtifact());
        assertEquals(EventType.ARTIFACT_RESOLVED, event.getType());
        assertNotNull(event.getException());
        assertEquals(1, event.getExceptions().size());
    }

    @Test
    public void testRepositoryEventsSuccessfulRemote() throws ArtifactResolutionException {
        RecordingRepositoryListener listener = new RecordingRepositoryListener();
        session.setRepositoryListener(listener);

        ArtifactRequest request = new ArtifactRequest(artifact, null, "");
        request.addRepository(new RemoteRepository.Builder("id", "default", "file:///").build());

        resolver.resolveArtifact(session, request);

        List<RepositoryEvent> events = listener.getEvents();
        assertEquals(events.toString(), 4, events.size());
        RepositoryEvent event = events.get(0);
        assertEquals(EventType.ARTIFACT_RESOLVING, event.getType());
        assertNull(event.getException());
        assertEquals(artifact, event.getArtifact());

        event = events.get(1);
        assertEquals(EventType.ARTIFACT_DOWNLOADING, event.getType());
        assertNull(event.getException());
        assertEquals(artifact, event.getArtifact().setFile(null));

        event = events.get(2);
        assertEquals(EventType.ARTIFACT_DOWNLOADED, event.getType());
        assertNull(event.getException());
        assertEquals(artifact, event.getArtifact().setFile(null));

        event = events.get(3);
        assertEquals(EventType.ARTIFACT_RESOLVED, event.getType());
        assertNull(event.getException());
        assertEquals(artifact, event.getArtifact().setFile(null));
    }

    @Test
    public void testRepositoryEventsUnsuccessfulRemote() {
        RecordingRepositoryConnector connector = new RecordingRepositoryConnector() {

            @Override
            public void get(
                    Collection<? extends ArtifactDownload> artifactDownloads,
                    Collection<? extends MetadataDownload> metadataDownloads) {
                super.get(artifactDownloads, metadataDownloads);
                ArtifactDownload download = artifactDownloads.iterator().next();
                ArtifactTransferException exception =
                        new ArtifactNotFoundException(download.getArtifact(), null, "not found");
                download.setException(exception);
            }
        };
        repositoryConnectorProvider.setConnector(connector);

        RecordingRepositoryListener listener = new RecordingRepositoryListener();
        session.setRepositoryListener(listener);

        ArtifactRequest request = new ArtifactRequest(artifact, null, "");
        request.addRepository(new RemoteRepository.Builder("id", "default", "file:///").build());

        try {
            resolver.resolveArtifact(session, request);
            fail("expected exception");
        } catch (ArtifactResolutionException ignored) {
        }

        List<RepositoryEvent> events = listener.getEvents();
        assertEquals(events.toString(), 4, events.size());

        RepositoryEvent event = events.get(0);
        assertEquals(artifact, event.getArtifact());
        assertEquals(EventType.ARTIFACT_RESOLVING, event.getType());

        event = events.get(1);
        assertEquals(artifact, event.getArtifact());
        assertEquals(EventType.ARTIFACT_DOWNLOADING, event.getType());

        event = events.get(2);
        assertEquals(artifact, event.getArtifact());
        assertEquals(EventType.ARTIFACT_DOWNLOADED, event.getType());
        assertNotNull(event.getException());
        assertEquals(1, event.getExceptions().size());

        event = events.get(3);
        assertEquals(artifact, event.getArtifact());
        assertEquals(EventType.ARTIFACT_RESOLVED, event.getType());
        assertNotNull(event.getException());
        assertEquals(1, event.getExceptions().size());
    }

    @Test
    public void testVersionResolverFails() {
        resolver.setVersionResolver(new VersionResolver() {

            public VersionResult resolveVersion(RepositorySystemSession session, VersionRequest request)
                    throws VersionResolutionException {
                throw new VersionResolutionException(new VersionResult(request));
            }
        });

        ArtifactRequest request = new ArtifactRequest(artifact, null, "");
        try {
            resolver.resolveArtifact(session, request);
            fail("expected exception");
        } catch (ArtifactResolutionException e) {
            connector.assertSeenExpected();
            assertNotNull(e.getResults());
            assertEquals(1, e.getResults().size());

            ArtifactResult result = e.getResults().get(0);

            assertSame(request, result.getRequest());

            assertFalse(result.getExceptions().isEmpty());
            assertTrue(result.getExceptions().get(0) instanceof VersionResolutionException);

            Artifact resolved = result.getArtifact();
            assertNull(resolved);
        }
    }

    @Test
    public void testRepositoryEventsOnVersionResolverFail() {
        resolver.setVersionResolver(new VersionResolver() {

            public VersionResult resolveVersion(RepositorySystemSession session, VersionRequest request)
                    throws VersionResolutionException {
                throw new VersionResolutionException(new VersionResult(request));
            }
        });

        RecordingRepositoryListener listener = new RecordingRepositoryListener();
        session.setRepositoryListener(listener);

        ArtifactRequest request = new ArtifactRequest(artifact, null, "");
        try {
            resolver.resolveArtifact(session, request);
            fail("expected exception");
        } catch (ArtifactResolutionException ignored) {
        }

        List<RepositoryEvent> events = listener.getEvents();
        assertEquals(2, events.size());

        RepositoryEvent event = events.get(0);
        assertEquals(artifact, event.getArtifact());
        assertEquals(EventType.ARTIFACT_RESOLVING, event.getType());

        event = events.get(1);
        assertEquals(artifact, event.getArtifact());
        assertEquals(EventType.ARTIFACT_RESOLVED, event.getType());
        assertNotNull(event.getException());
        assertEquals(1, event.getExceptions().size());
    }

    @Test
    public void testLocalArtifactAvailable() throws ArtifactResolutionException {
        session.setLocalRepositoryManager(new LocalRepositoryManager() {

            public LocalRepository getRepository() {
                return null;
            }

            public String getPathForRemoteMetadata(Metadata metadata, RemoteRepository repository, String context) {
                return null;
            }

            public String getPathForRemoteArtifact(Artifact artifact, RemoteRepository repository, String context) {
                return null;
            }

            public String getPathForLocalMetadata(Metadata metadata) {
                return null;
            }

            public String getPathForLocalArtifact(Artifact artifact) {
                return null;
            }

            public LocalArtifactResult find(RepositorySystemSession session, LocalArtifactRequest request) {

                LocalArtifactResult result = new LocalArtifactResult(request);
                result.setAvailable(true);
                try {
                    result.setFile(TestFileUtils.createTempFile(""));
                } catch (IOException e) {
                    e.printStackTrace();
                }
                return result;
            }

            public void add(RepositorySystemSession session, LocalArtifactRegistration request) {}

            public LocalMetadataResult find(RepositorySystemSession session, LocalMetadataRequest request) {
                LocalMetadataResult result = new LocalMetadataResult(request);
                try {
                    result.setFile(TestFileUtils.createTempFile(""));
                } catch (IOException e) {
                    e.printStackTrace();
                }
                return result;
            }

            public void add(RepositorySystemSession session, LocalMetadataRegistration request) {}
        });

        ArtifactRequest request = new ArtifactRequest(artifact, null, "");
        request.addRepository(new RemoteRepository.Builder("id", "default", "file:///").build());

        ArtifactResult result = resolver.resolveArtifact(session, request);

        assertTrue(result.getExceptions().isEmpty());

        Artifact resolved = result.getArtifact();
        assertNotNull(resolved.getFile());

        resolved = resolved.setFile(null);
        assertEquals(artifact, resolved);
    }

    @Test
    public void testFindInLocalRepositoryWhenVersionWasFoundInLocalRepository() throws ArtifactResolutionException {
        session.setLocalRepositoryManager(new LocalRepositoryManager() {

            public LocalRepository getRepository() {
                return new LocalRepository(new File(""));
            }

            public String getPathForRemoteMetadata(Metadata metadata, RemoteRepository repository, String context) {
                return null;
            }

            public String getPathForRemoteArtifact(Artifact artifact, RemoteRepository repository, String context) {
                return null;
            }

            public String getPathForLocalMetadata(Metadata metadata) {
                return null;
            }

            public String getPathForLocalArtifact(Artifact artifact) {
                return null;
            }

            public LocalArtifactResult find(RepositorySystemSession session, LocalArtifactRequest request) {

                LocalArtifactResult result = new LocalArtifactResult(request);
                result.setAvailable(false);
                try {
                    result.setFile(TestFileUtils.createTempFile(""));
                } catch (IOException e) {
                    e.printStackTrace();
                }
                return result;
            }

            public void add(RepositorySystemSession session, LocalArtifactRegistration request) {}

            public LocalMetadataResult find(RepositorySystemSession session, LocalMetadataRequest request) {
                return new LocalMetadataResult(request);
            }

            public void add(RepositorySystemSession session, LocalMetadataRegistration request) {}
        });
        ArtifactRequest request = new ArtifactRequest(artifact, null, "");
        request.addRepository(new RemoteRepository.Builder("id", "default", "file:///").build());

        resolver.setVersionResolver(new VersionResolver() {

            public VersionResult resolveVersion(RepositorySystemSession session, VersionRequest request) {
                return new VersionResult(request)
                        .setRepository(new LocalRepository("id"))
                        .setVersion(request.getArtifact().getVersion());
            }
        });
        ArtifactResult result = resolver.resolveArtifact(session, request);

        assertTrue(result.getExceptions().isEmpty());

        Artifact resolved = result.getArtifact();
        assertNotNull(resolved.getFile());

        resolved = resolved.setFile(null);
        assertEquals(artifact, resolved);
    }

    @Test
    public void testFindInLocalRepositoryWhenVersionRangeWasResolvedFromLocalRepository()
            throws ArtifactResolutionException {
        session.setLocalRepositoryManager(new LocalRepositoryManager() {

            public LocalRepository getRepository() {
                return new LocalRepository(new File(""));
            }

            public String getPathForRemoteMetadata(Metadata metadata, RemoteRepository repository, String context) {
                return null;
            }

            public String getPathForRemoteArtifact(Artifact artifact, RemoteRepository repository, String context) {
                return null;
            }

            public String getPathForLocalMetadata(Metadata metadata) {
                return null;
            }

            public String getPathForLocalArtifact(Artifact artifact) {
                return null;
            }

            public LocalArtifactResult find(RepositorySystemSession session, LocalArtifactRequest request) {

                LocalArtifactResult result = new LocalArtifactResult(request);
                result.setAvailable(false);
                try {
                    result.setFile(TestFileUtils.createTempFile(""));
                } catch (IOException e) {
                    e.printStackTrace();
                }
                return result;
            }

            public void add(RepositorySystemSession session, LocalArtifactRegistration request) {}

            public LocalMetadataResult find(RepositorySystemSession session, LocalMetadataRequest request) {
                return new LocalMetadataResult(request);
            }

            public void add(RepositorySystemSession session, LocalMetadataRegistration request) {}
        });
        ArtifactRequest request = new ArtifactRequest(artifact, null, "");

        resolver.setVersionResolver(new VersionResolver() {

            public VersionResult resolveVersion(RepositorySystemSession session, VersionRequest request) {
                return new VersionResult(request)
                        .setVersion(request.getArtifact().getVersion());
            }
        });
        ArtifactResult result = resolver.resolveArtifact(session, request);

        assertTrue(result.getExceptions().isEmpty());

        Artifact resolved = result.getArtifact();
        assertNotNull(resolved.getFile());

        resolved = resolved.setFile(null);
        assertEquals(artifact, resolved);
    }
}
