/*
* Copyright 2012-2016 the original author or authors.
*
* 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.
*/
package org.springframework.boot.devtools.restart.classloader;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.Iterator;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.springframework.boot.devtools.restart.classloader.ClassLoaderFile.Kind;
import org.springframework.boot.devtools.restart.classloader.ClassLoaderFiles.SourceFolder;
import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.Mockito.mock;
/**
* Tests for {@link ClassLoaderFiles}.
*
* @author Phillip Webb
*/
public class ClassLoaderFilesTests {
@Rule
public ExpectedException thrown = ExpectedException.none();
private ClassLoaderFiles files = new ClassLoaderFiles();
@Test
public void addFileNameMustNotBeNull() throws Exception {
this.thrown.expect(IllegalArgumentException.class);
this.thrown.expectMessage("Name must not be null");
this.files.addFile(null, mock(ClassLoaderFile.class));
}
@Test
public void addFileFileMustNotBeNull() throws Exception {
this.thrown.expect(IllegalArgumentException.class);
this.thrown.expectMessage("File must not be null");
this.files.addFile("test", null);
}
@Test
public void getFileWithNullName() throws Exception {
assertThat(this.files.getFile(null)).isNull();
}
@Test
public void addAndGet() throws Exception {
ClassLoaderFile file = new ClassLoaderFile(Kind.ADDED, new byte[10]);
this.files.addFile("myfile", file);
assertThat(this.files.getFile("myfile")).isEqualTo(file);
}
@Test
public void getMissing() throws Exception {
assertThat(this.files.getFile("missing")).isNull();
}
@Test
public void addTwice() throws Exception {
ClassLoaderFile file1 = new ClassLoaderFile(Kind.ADDED, new byte[10]);
ClassLoaderFile file2 = new ClassLoaderFile(Kind.MODIFIED, new byte[10]);
this.files.addFile("myfile", file1);
this.files.addFile("myfile", file2);
assertThat(this.files.getFile("myfile")).isEqualTo(file2);
}
@Test
public void addTwiceInDifferentSourceFolders() throws Exception {
ClassLoaderFile file1 = new ClassLoaderFile(Kind.ADDED, new byte[10]);
ClassLoaderFile file2 = new ClassLoaderFile(Kind.MODIFIED, new byte[10]);
this.files.addFile("a", "myfile", file1);
this.files.addFile("b", "myfile", file2);
assertThat(this.files.getFile("myfile")).isEqualTo(file2);
assertThat(this.files.getOrCreateSourceFolder("a").getFiles().size())
.isEqualTo(0);
assertThat(this.files.getOrCreateSourceFolder("b").getFiles().size())
.isEqualTo(1);
}
@Test
public void getSourceFolders() throws Exception {
ClassLoaderFile file1 = new ClassLoaderFile(Kind.ADDED, new byte[10]);
ClassLoaderFile file2 = new ClassLoaderFile(Kind.MODIFIED, new byte[10]);
ClassLoaderFile file3 = new ClassLoaderFile(Kind.MODIFIED, new byte[10]);
ClassLoaderFile file4 = new ClassLoaderFile(Kind.MODIFIED, new byte[10]);
this.files.addFile("a", "myfile1", file1);
this.files.addFile("a", "myfile2", file2);
this.files.addFile("b", "myfile3", file3);
this.files.addFile("b", "myfile4", file4);
Iterator<SourceFolder> sourceFolders = this.files.getSourceFolders().iterator();
SourceFolder sourceFolder1 = sourceFolders.next();
SourceFolder sourceFolder2 = sourceFolders.next();
assertThat(sourceFolders.hasNext()).isFalse();
assertThat(sourceFolder1.getName()).isEqualTo("a");
assertThat(sourceFolder2.getName()).isEqualTo("b");
assertThat(sourceFolder1.getFiles()).containsOnly(file1, file2);
assertThat(sourceFolder2.getFiles()).containsOnly(file3, file4);
}
@Test
public void serialize() throws Exception {
ClassLoaderFile file = new ClassLoaderFile(Kind.ADDED, new byte[10]);
this.files.addFile("myfile", file);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(bos);
oos.writeObject(this.files);
oos.close();
ObjectInputStream ois = new ObjectInputStream(
new ByteArrayInputStream(bos.toByteArray()));
ClassLoaderFiles readObject = (ClassLoaderFiles) ois.readObject();
assertThat(readObject.getFile("myfile")).isNotNull();
}
@Test
public void addAll() throws Exception {
ClassLoaderFile file1 = new ClassLoaderFile(Kind.ADDED, new byte[10]);
this.files.addFile("a", "myfile1", file1);
ClassLoaderFiles toAdd = new ClassLoaderFiles();
ClassLoaderFile file2 = new ClassLoaderFile(Kind.MODIFIED, new byte[10]);
ClassLoaderFile file3 = new ClassLoaderFile(Kind.MODIFIED, new byte[10]);
toAdd.addFile("a", "myfile2", file2);
toAdd.addFile("b", "myfile3", file3);
this.files.addAll(toAdd);
Iterator<SourceFolder> sourceFolders = this.files.getSourceFolders().iterator();
SourceFolder sourceFolder1 = sourceFolders.next();
SourceFolder sourceFolder2 = sourceFolders.next();
assertThat(sourceFolders.hasNext()).isFalse();
assertThat(sourceFolder1.getName()).isEqualTo("a");
assertThat(sourceFolder2.getName()).isEqualTo("b");
assertThat(sourceFolder1.getFiles()).containsOnly(file1, file2);
}
@Test
public void getSize() throws Exception {
this.files.addFile("s1", "n1", mock(ClassLoaderFile.class));
this.files.addFile("s1", "n2", mock(ClassLoaderFile.class));
this.files.addFile("s2", "n3", mock(ClassLoaderFile.class));
this.files.addFile("s2", "n1", mock(ClassLoaderFile.class));
assertThat(this.files.size()).isEqualTo(3);
}
@Test
public void classLoaderFilesMustNotBeNull() throws Exception {
this.thrown.expect(IllegalArgumentException.class);
this.thrown.expectMessage("ClassLoaderFiles must not be null");
new ClassLoaderFiles(null);
}
@Test
public void constructFromExistingSet() throws Exception {
this.files.addFile("s1", "n1", mock(ClassLoaderFile.class));
this.files.addFile("s1", "n2", mock(ClassLoaderFile.class));
ClassLoaderFiles copy = new ClassLoaderFiles(this.files);
this.files.addFile("s2", "n3", mock(ClassLoaderFile.class));
assertThat(this.files.size()).isEqualTo(3);
assertThat(copy.size()).isEqualTo(2);
}
}