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 *  * terms of the Apache License, Version 2.0 which is available at
 *  * https://www.apache.org/licenses/LICENSE-2.0.
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 *  *  information regarding copyright ownership.
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package org.eclipse.deeplearning4j.dl4jcore.perf.listener;

import org.apache.commons.io.FileUtils;
import org.deeplearning4j.BaseDL4JTest;
import org.deeplearning4j.core.listener.HardwareMetric;
import org.deeplearning4j.core.listener.SystemPolling;
import org.junit.jupiter.api.Disabled;

import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.io.TempDir;
import org.nd4j.common.tests.tags.NativeTag;
import org.nd4j.common.tests.tags.TagNames;
import org.nd4j.linalg.factory.Nd4j;
import java.io.File;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;
import org.junit.jupiter.api.DisplayName;
import java.nio.file.Path;

@Disabled("AB 2019/05/24 - Failing on CI - \"Could not initialize class oshi.jna.platform.linux.Libc\" - Issue #7657")
@DisplayName("System Polling Test")
@NativeTag
@Tag(TagNames.DL4J_OLD_API)
class SystemPollingTest extends BaseDL4JTest {

    @TempDir
    public Path tempDir;

    @Test
    @DisplayName("Test Polling")
    void testPolling() throws Exception {
        Nd4j.create(1);
        File tmpDir = tempDir.toFile();
        SystemPolling systemPolling = new SystemPolling.Builder().outputDirectory(tmpDir).pollEveryMillis(1000).build();
        systemPolling.run();
        Thread.sleep(8000);
        systemPolling.stopPolling();
        File[] files = tmpDir.listFiles();
        assertTrue(files != null && files.length > 0);
        // System.out.println(Arrays.toString(files));
        String yaml = FileUtils.readFileToString(files[0]);
        HardwareMetric fromYaml = HardwareMetric.fromYaml(yaml);
        System.out.println(fromYaml);
    }
}
