/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.annotations.service;

import static com.google.testing.compile.JavaFileObjects.forResource;
import static com.google.testing.compile.JavaSourcesSubject.assertThat;
import static javax.tools.StandardLocation.CLASS_OUTPUT;
import static org.neo4j.annotations.AnnotationTestHelper.detectNewLineSignature;

import java.io.IOException;
import org.junit.jupiter.api.Test;

class ServiceAnnotationProcessorTest {
    @Test
    void providersWithDistinctServiceKeys() throws IOException {
        assertThat(
                        forResource("org/neo4j/annotations/service/FooService.java"),
                        forResource("org/neo4j/annotations/service/AbstractFooService.java"),
                        forResource("org/neo4j/annotations/service/FooServiceImplA.java"),
                        forResource("org/neo4j/annotations/service/FooServiceImplB.java"))
                .processedWith(new ServiceAnnotationProcessor(
                        detectNewLineSignature("META-INF/services/org.neo4j.annotations.service.FooService")))
                .compilesWithoutError()
                .and()
                .generatesFileNamed(CLASS_OUTPUT, "", "META-INF/services/org.neo4j.annotations.service.FooService")
                .and()
                .generatesFiles(forResource("META-INF/services/org.neo4j.annotations.service.FooService"));
    }

    @Test
    void classIsBothServiceAndProvider() throws IOException {
        assertThat(forResource("org/neo4j/annotations/service/ClassIsServiceAndProvider.java"))
                .processedWith(new ServiceAnnotationProcessor(detectNewLineSignature(
                        "META-INF/services/org.neo4j.annotations.service.ClassIsServiceAndProvider")))
                .compilesWithoutError()
                .and()
                .generatesFileNamed(
                        CLASS_OUTPUT, "", "META-INF/services/org.neo4j.annotations.service.ClassIsServiceAndProvider")
                .and()
                .generatesFiles(
                        forResource("META-INF/services/org.neo4j.annotations.service.ClassIsServiceAndProvider"));
    }

    @Test
    void nestedTypes() throws IOException {
        assertThat(forResource("org/neo4j/annotations/service/Nested.java"))
                .processedWith(new ServiceAnnotationProcessor(
                        detectNewLineSignature("META-INF/services/org.neo4j.annotations.service.Nested$NestedService")))
                .compilesWithoutError()
                .and()
                .generatesFileNamed(
                        CLASS_OUTPUT, "", "META-INF/services/org.neo4j.annotations.service.Nested$NestedService")
                .and()
                .generatesFiles(forResource("META-INF/services/org.neo4j.annotations.service.Nested$NestedService"));
    }

    @Test
    void failMultipleServiceAscendants() {
        assertThat(forResource("org/neo4j/annotations/service/FailMultipleServices.java"))
                .processedWith(new ServiceAnnotationProcessor())
                .failsToCompile()
                .withErrorContaining("multiple ascendants annotated with @Service");
    }

    @Test
    void failProviderDoesntImplementService() {
        assertThat(forResource("org/neo4j/annotations/service/FailNotService.java"))
                .processedWith(new ServiceAnnotationProcessor())
                .failsToCompile()
                .withErrorContaining("neither has ascendants nor itself annotated with @Service");
    }
}
