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test/toolprovider/ToolProviderTest.java
43 строки
2 KB
Christian Stein
7903097: jtreg could implement ToolProvider
07 апр 2022, 18:37
07 апр 2022, 18:37
1433968
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/* * Copyright (c) 2022, 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. * * 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. */ import java.io.PrintWriter; import java.io.StringWriter; import java.util.spi.ToolProvider; public class ToolProviderTest{ public static void main(String... args) { var jtreg = ToolProvider.findFirst("jtreg") .orElseThrow(() -> new AssertionError("`jtreg` not found by name")); var out = new StringWriter(); var err = new StringWriter(); int code = jtreg.run(new PrintWriter(out), new PrintWriter(err), "-help"); if (code != 0) throw new AssertionError("non-zero exit code: " + code); if (!out.toString().contains("Usage:")) throw new AssertionError("No help text printed?\nout=" + out + "\nerr=" + err); } }