SingleThreadSetQueryTest.java

/*
 * The MIT License
 *
 * Copyright (c) 2014 Red Hat, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * THE SOFTWARE.
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package com.github.olivergondza.dumpling.query;

import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;

import java.io.PrintStream;
import java.util.Arrays;
import java.util.HashSet;

import org.junit.Test;

import com.github.olivergondza.dumpling.model.dump.ThreadDumpRuntime;
import com.github.olivergondza.dumpling.model.dump.ThreadDumpThread;
import com.github.olivergondza.dumpling.model.dump.ThreadDumpThreadSet;

public class SingleThreadSetQueryTest {

    @Test
    public void noThreadsOutput() {
        String out = new Threads(false).toString();
        assertThat(out, equalTo(String.format("RESULT%n%n%nSUMMARY%n")));
    }

    @Test
    public void threadsOutput() {
        String out = new Threads(true).toString();
        assertThat(out, equalTo(String.format("RESULT%n%n%n\"THREAD_NAME\" #42%n   java.lang.Thread.State: UNKNOWN%n%n%nSUMMARY%n")));
    }

    private static final class Threads extends SingleThreadSetQuery.Result<ThreadDumpThreadSet, ThreadDumpRuntime, ThreadDumpThread> {

        private Threads(boolean showStackTraces) {
            super(showStackTraces);
        }

        @Override
        protected void printResult(PrintStream out) {
            out.println("RESULT");
        }

        @Override
        protected ThreadDumpThreadSet involvedThreads() {
            HashSet<ThreadDumpThread.Builder> threads = new HashSet<ThreadDumpThread.Builder>();
            threads.add(new ThreadDumpThread.Builder().setName("THREAD_NAME").setId(42));
            return new ThreadDumpRuntime(threads, Arrays.asList("A header")).getThreads();
        }

        @Override
        protected void printSummary(PrintStream out) {
            out.println("SUMMARY");
        }
    }
}