maven-core/src/test/java/org/apache/maven/internal/transformation/impl/ConsumerPomArtifactTransformerTest.java

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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
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package org.apache.maven.internal.transformation.impl;

import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

import org.apache.maven.model.Model;
import org.apache.maven.model.building.TransformerContext;
import org.apache.maven.model.v4.MavenStaxReader;
import org.apache.maven.project.MavenProject;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.SessionData;
import org.junit.jupiter.api.Test;
import org.mockito.Mockito;
import org.xmlunit.assertj.XmlAssert;

import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.when;

class ConsumerPomArtifactTransformerTest {

    @Test
    void transform() throws Exception {
        RepositorySystemSession systemSessionMock = Mockito.mock(RepositorySystemSession.class);
        SessionData sessionDataMock = Mockito.mock(SessionData.class);
        when(systemSessionMock.getData()).thenReturn(sessionDataMock);
        when(sessionDataMock.get(any())).thenReturn(new NoTransformerContext());

        Path beforePomFile =
                Paths.get("src/test/resources/projects/transform/before.pom").toAbsolutePath();
        Path afterPomFile =
                Paths.get("src/test/resources/projects/transform/after.pom").toAbsolutePath();
        Path tempFile = Files.createTempFile("", ".pom");
        Files.delete(tempFile);
        try (InputStream expected = Files.newInputStream(beforePomFile)) {
            Model model = new Model(new MavenStaxReader().read(expected));
            MavenProject project = new MavenProject(model);
            project.setOriginalModel(model);
            DefaultConsumerPomArtifactTransformer t = new DefaultConsumerPomArtifactTransformer((s, p, f) -> {
                try (InputStream is = Files.newInputStream(f)) {
                    return DefaultConsumerPomBuilder.transform(new MavenStaxReader().read(is), project);
                }
            });

            t.transform(project, systemSessionMock, beforePomFile, tempFile);
        }
        XmlAssert.assertThat(afterPomFile.toFile()).and(tempFile.toFile()).areIdentical();
    }

    @Test
    void injectTransformedArtifactsWithoutPomShouldNotInjectAnyArtifacts() throws IOException {
        MavenProject emptyProject = new MavenProject();

        RepositorySystemSession systemSessionMock = Mockito.mock(RepositorySystemSession.class);
        SessionData sessionDataMock = Mockito.mock(SessionData.class);
        when(systemSessionMock.getData()).thenReturn(sessionDataMock);
        when(sessionDataMock.get(any())).thenReturn(new NoTransformerContext());

        new DefaultConsumerPomArtifactTransformer((session, project, src) -> null)
                .injectTransformedArtifacts(systemSessionMock, emptyProject);

        assertThat(emptyProject.getAttachedArtifacts()).isEmpty();
    }

    private static class NoTransformerContext implements TransformerContext {
        @Override
        public String getUserProperty(String key) {
            return null;
        }

        @Override
        public Model getRawModel(Path from, String groupId, String artifactId) throws IllegalStateException {
            throw new UnsupportedOperationException();
        }

        @Override
        public Model getRawModel(Path from, Path p) {
            throw new UnsupportedOperationException();
        }

        @Override
        public Path locate(Path path) {
            throw new UnsupportedOperationException();
        }
    }
}