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package com.yahoo.vespa.hosted.node.verification.hardware.benchmarks;
import com.yahoo.vespa.hosted.node.verification.commons.parser.ParseResult;
import com.yahoo.vespa.hosted.node.verification.mock.MockCommandExecutor;
import org.junit.Before;
import org.junit.Test;
import java.io.IOException;
import java.util.ArrayList;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
/**
* Created by sgrostad on 11/07/2017.
*/
public class CPUBenchmarkTest {
private static final String cpuEuropeanDelimiters = "src/test/java/com/yahoo/vespa/hosted/node/verification/hardware/resources/cpuCyclesWithDotsTimeWithCommaTest.txt";
private static final String cpuAlternativeDelimiters = "src/test/java/com/yahoo/vespa/hosted/node/verification/hardware/resources/cpuCyclesWithCommasTimeWithDotTest.txt";
private static final String cpuWrongOutput = "src/test/java/com/yahoo/vespa/hosted/node/verification/hardware/resources/cpuWrongOutputTest.txt";
private BenchmarkResults benchmarkResults;
private MockCommandExecutor commandExecutor;
private CPUBenchmark cpu;
private static final double DELTA = 0.1;
@Before
public void setup() {
commandExecutor = new MockCommandExecutor();
benchmarkResults = new BenchmarkResults();
cpu = new CPUBenchmark(benchmarkResults, commandExecutor);
}
@Test
public void doBenchmark_find_correct_cpuCyclesPerSec() {
String mockCommand = "cat " + cpuAlternativeDelimiters;
commandExecutor.addCommand(mockCommand);
cpu.doBenchmark();
double result = benchmarkResults.getCpuCyclesPerSec();
double expected = 2.1576482291815062;
assertEquals(expected, result, DELTA);
}
@Test
public void doBenchmark_wrong_output_stores_frequency_of_zero() {
String mockCommand = "cat " + cpuWrongOutput;
commandExecutor.addCommand(mockCommand);
cpu.doBenchmark();
double result = benchmarkResults.getCpuCyclesPerSec();
double expected = 0;
assertEquals(expected, result, DELTA);
}
@Test
public void parseCpuCyclesPerSec_return_correct_ArrayList() throws IOException {
ArrayList<String> mockCommandOutput = MockCommandExecutor.readFromFile(cpuEuropeanDelimiters);
ArrayList<ParseResult> parseResults = cpu.parseCpuCyclesPerSec(mockCommandOutput);
ParseResult expectedParseCyclesResult = new ParseResult("cycles", "2.066.201.729");
ParseResult expectedParseSecondsResult = new ParseResult("seconds", "0,957617512");
assertEquals(expectedParseCyclesResult, parseResults.get(0));
assertEquals(expectedParseSecondsResult, parseResults.get(1));
}
@Test
public void test_if_setCpuCyclesPerSec_reads_output_correctly() throws IOException {
ArrayList<ParseResult> parseResults = new ArrayList<>();
parseResults.add(new ParseResult("cycles", "2.066.201.729"));
parseResults.add(new ParseResult("seconds", "0,957617512"));
cpu.setCpuCyclesPerSec(parseResults);
double expectedCpuCyclesPerSec = 2.1576482291815062;
assertEquals(expectedCpuCyclesPerSec, benchmarkResults.getCpuCyclesPerSec(), DELTA);
}
@Test
public void test_if_makeCyclesDouble_converts_European_and_alternative_delimiters_correctly() {
String toBeConvertedEuropean = "2.066.201.729";
String toBEConvertedAlternative = "2,066,201,729";
double expectedCycles = 2066201729;
assertEquals(expectedCycles, cpu.makeCyclesDouble(toBeConvertedEuropean), DELTA);
assertEquals(expectedCycles, cpu.makeCyclesDouble(toBEConvertedAlternative), DELTA);
}
@Test
public void test_if_makeSecondsDouble_converts_European_and_alternative_delimiters_correctly() {
String toBeConvertedEuropean = "0,957617512";
String toBEConvertedAlternative = "0.957617512";
double expectedSeconds = 0.957617512;
assertEquals(expectedSeconds, cpu.makeSecondsDouble(toBeConvertedEuropean), DELTA);
assertEquals(expectedSeconds, cpu.makeSecondsDouble(toBEConvertedAlternative), DELTA);
}
@Test
public void test_if_checkIfNumber_returns_true() {
String number = "125.5";
assertTrue(cpu.checkIfNumber(number));
}
@Test
public void test_if_checkIfNumber_returns_false() {
String notANumber = "125.5a";
assertFalse(cpu.checkIfNumber(notANumber));
}
@Test
public void test_if_convertToGHz_converts_correctly() {
double cycles = 2066201729;
double seconds = 0.957617512;
double expectedGHz = 2.1576482291815062;
assertEquals(expectedGHz, cpu.convertToGHz(cycles, seconds), DELTA);
}
}
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