/*
* Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 8304400
* @summary Test source launcher running Java programs contained in one module
* @modules jdk.compiler/com.sun.tools.javac.launcher
* @run junit ModuleSourceLauncherTests
*/
import static org.junit.jupiter.api.Assertions.*;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.List;
import java.util.Set;
import java.util.spi.ToolProvider;
class ModuleSourceLauncherTests {
@Test
void testHelloModularWorld(@TempDir Path base) throws Exception {
var packageFolder = Files.createDirectories(base.resolve("com/greetings"));
var mainFile = Files.writeString(packageFolder.resolve("Main.java"),
"""
package com.greetings;
public class Main {
public static void main(String... args) {
System.out.println("Greetings!");
System.out.println(" module -> " + Main.class.getModule().getName());
System.out.println(" package -> " + Main.class.getPackageName());
System.out.println(" class -> " + Main.class.getSimpleName());
}
}
""");
Files.writeString(base.resolve("module-info.java"),
"""
module com.greetings {}
""");
var run = Run.of(mainFile);
assertAll("Run -> " + run,
() -> assertLinesMatch(
"""
Greetings!
module -> com.greetings
package -> com.greetings
class -> Main
""".lines(),
run.stdOut().lines()),
() -> assertTrue(run.stdErr().isEmpty()),
() -> assertNull(run.exception())
);
var module = run.result().programClass().getModule();
assertEquals("com.greetings", module.getName());
var reference = module.getLayer().configuration().findModule(module.getName()).orElseThrow().reference();
try (var reader = reference.open()) {
assertLinesMatch(
"""
com/
com/greetings/
com/greetings/Main.class
com/greetings/Main.java
module-info.class
module-info.java
""".lines(),
reader.list());
}
}
@Test
void testTwoAndHalfPackages(@TempDir Path base) throws Exception {
var fooFolder = Files.createDirectories(base.resolve("foo"));
var program = Files.writeString(fooFolder.resolve("Main.java"),
"""
package foo;
public class Main {
public static void main(String... args) throws Exception {
var module = Main.class.getModule();
System.out.println("To the " + bar.Bar.class + " from " + module);
try (var stream = module.getResourceAsStream("baz/baz.txt")) {
System.out.println(new String(stream.readAllBytes()));
}
}
}
""");
var barFolder = Files.createDirectories(base.resolve("bar"));
Files.writeString(barFolder.resolve("Bar.java"), "package bar; public record Bar() {}");
var bazFolder = Files.createDirectories(base.resolve("baz"));
Files.writeString(bazFolder.resolve("baz.txt"), "baz");
Files.writeString(base.resolve("module-info.java"),
"""
module m {
exports foo;
exports bar;
opens baz;
}
""");
var run = Run.of(program);
var result = run.result();
assertAll("Run -> " + run,
() -> assertLinesMatch(
"""
To the class bar.Bar from module m
baz
""".lines(),
run.stdOut().lines()),
() -> assertTrue(run.stdErr().isEmpty()),
() -> assertNull(run.exception()),
() -> assertEquals(Set.of("foo", "bar", "baz"), result.programClass().getModule().getPackages())
);
var module = run.result().programClass().getModule();
assertEquals("m", module.getName());
var reference = module.getLayer().configuration().findModule(module.getName()).orElseThrow().reference();
try (var reader = reference.open()) {
assertLinesMatch(
"""
bar/
bar/Bar.class
bar/Bar.java
baz/
baz/baz.txt
foo/
foo/Main.class
foo/Main.java
module-info.class
module-info.java
""".lines(),
reader.list());
}
}
@Test
void testUserModuleOnModulePath(@TempDir Path base) throws Exception {
Files.createDirectories(base.resolve("foo", "foo"));
Files.writeString(base.resolve("foo", "module-info.java"),
"""
module foo {
exports foo;
}
""");
Files.writeString(base.resolve("foo", "foo", "Foo.java"),
"""
package foo;
public record Foo() {}
""");
var javac = ToolProvider.findFirst("javac").orElseThrow();
javac.run(System.out, System.err, "--module-source-path", base.toString(), "--module", "foo", "-d", base.toString());
Files.createDirectories(base.resolve("bar", "bar"));
Files.writeString(base.resolve("bar", "module-info.java"),
"""
module bar {
requires foo;
}
""");
Files.writeString(base.resolve("bar", "bar","Prog1.java"),
"""
package bar;
class Prog1 {
public static void main(String... args) {
System.out.println(new foo.Foo());
}
}
""");
var command = List.of(
Path.of(System.getProperty("java.home"), "bin", "java").toString(),
"-p", ".",
"bar/bar/Prog1.java");
var redirectedOut = base.resolve("out.redirected");
var redirectedErr = base.resolve("err.redirected");
var process = new ProcessBuilder(command)
.directory(base.toFile())
.redirectOutput(redirectedOut.toFile())
.redirectError(redirectedErr.toFile())
.start();
var code = process.waitFor();
var out = Files.readAllLines(redirectedOut);
var err = Files.readAllLines(redirectedErr);
assertAll(
() -> assertEquals(0, code),
() -> assertLinesMatch(
"""
Foo[]
""".lines(), out.stream()),
() -> assertTrue(err.isEmpty())
);
}
}