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How to use runtime method of org.junit.rules.Stopwatch class

Best junit code snippet using org.junit.rules.Stopwatch.runtime

Source:HelloRxTest.java

1package com.venku.rx;2import static org.hamcrest.core.Is.is;3import static org.junit.Assert.assertThat;4import java.util.Arrays;5import java.util.concurrent.TimeUnit;6import org.junit.Assert;7import org.junit.Before;8import org.junit.Rule;9import org.junit.Test;10import org.junit.rules.TestRule;11import org.junit.rules.TestWatcher;12import org.junit.runner.Description;13import com.google.common.base.Stopwatch;14import rx.Observable;15import rx.functions.Action0;16import rx.functions.Action1;17import rx.functions.Func1;18import rx.observers.TestSubscriber;19/**20 * Some reactive implementations of traditional first program.21 * <p>22 * Given a list of strings, join with space, then append '!'.<p>23 * Like: String.join(" ", "Hello","world") + "!"24 * 25 * @version 1.126 * @author jbetancourt27 */28public class HelloRxTest {29    private Observable<String> observable;30    private Exception thrown;31    private StringBuilder buf;32    private static final String SPACE = " ";33    /** Setup test fixture */34    @Before35    public void before() {36        observable = Observable.from(Arrays.asList("Hello", "world"));37        buf = new StringBuilder();38    }39    /** Correct result string? */40    private void assertHello() {41        assertThat(buf.toString(), is("Hello world!"));42    }43    /**44     * Simple imperative solution.45     */46    @Test47    public final void nonObservableApproach() {48        buf.append(String.join(SPACE, "Hello", "world")).append("!");49        assertHello();50    }51    /**52     * Using reduce.53     */54    @Test55    public final void test1() {56        observable.reduce((t1, t2) -> t1 + " " + t2)57                .subscribe((s) -> buf.append(s).append("!"));58        assertHello();59    }60    /**61     * Concatting concats. Meow62     */63    @SuppressWarnings("static-access")64    @Test65    public final void test2() {66        observable.concat(67                observable.concatMap(68                        data -> Observable.from(Arrays.asList(data, SPACE))).skipLast(1),69                Observable.just("!"))70                .subscribe((s) -> buf.append(s));71        assertHello();72    }73    /**74     * Using concatMap.75     */76    @Test77    public final void test3() {78        observable.concatMap(data -> Observable.from(new String[] { data, SPACE }))79                .skipLast(1)80                .subscribe(81                        data -> {82                            buf.append(data);83                        } ,84                        (e) -> {85                            thrown = new RuntimeException(((Throwable) e).getMessage());86                        } ,87                        () -> buf.append("!"));88        assertHello();89    }90    /**91     * Concatting zip<p>92     * Doesn't work!93     */94    @Test(expected = AssertionError.class)95    public final void test2b() {96        Observable.concat(97                Observable.zip(98                        observable,99                        Observable.just(SPACE).repeat(),100                        (s1, s2) -> s1 + s2),101                Observable.just("!"))102                .subscribe(s -> buf.append(s));103        assertHello();104    }105    /**106     * Dan Lew's example in 'Grokking RxJava, Part 1: The Basics'.<p>107     * Converted to a test.108     * @see "http://blog.danlew.net/2014/09/15/grokking-rxjava-part-1/"109     * @throws Exception110     */111    @Test112    public final void test6() throws Exception {113        TestSubscriber<String> testSubscriber = new TestSubscriber<>();114        Observable.just("Hello, world!")115                .map(s -> s + " -Dan")116                .map(s -> s.hashCode())117                .map(i -> Integer.toString(i))118                .subscribe(testSubscriber);119        // .subscribe(s -> System.out.println(s)); // -120        testSubscriber.assertValue("-238955153");121        testSubscriber.assertTerminalEvent();122        testSubscriber.assertNoErrors();123    }124    /**125     * Concatting zip<p>126     * Doesn't work!127     */128    @Test(expected = AssertionError.class)129    public final void test2c() {130        Observable.concat(131                Observable.zip(132                        observable,133                        Observable.just(SPACE).repeat(),134                        (a, b) -> a + b),135                Observable.just("!"))136                .subscribe((a) -> buf.append(a));137        assertHello();138    }139    /**140     * Fail test within an onCompleted.141     * Doesn't work!142     * 143     * Also, how to use a lambda for subscribe? The onError(e) is 144     * not visible.145     * 146     * @throws Exception147     */148    @Test(expected = RuntimeException.class)149    public final void test4() throws Exception {150        Action1<String> appender = data -> buf.append(data).append(SPACE);151        Action1<Throwable> errorFunction = (e) -> thrown = new RuntimeException(e.getMessage(), e);152        Action0 complete = () -> {153            try {154                String actual = buf.append("!").toString();155                Assert.assertEquals("Hello world!", actual);156            } catch (Throwable e) {157                thrown = new RuntimeException(e);158            }159        };160        observable.subscribe(appender, errorFunction, complete);161        if (null != thrown) {162            System.out.println("failed 4");163            throw thrown;164        }165    }166    /**167     * @param o168     * @return observable169     */170    public static <T> Observable<T> handleTestError(Observable<T> o) {171        return o.onErrorResumeNext(new Func1<Throwable, Observable<T>>() {172            @Override173            public Observable<T> call(Throwable err) {174                System.out.println("in error stuff ...");175                return Observable.error(err);176            }177        });178    }179    /**180     * Another approach that fails.181     * Doesn't work!182     * @throws Exception183     */184    @Test(expected = RuntimeException.class)185    public final void test5() throws Exception {186        observable.subscribe(187                (s) -> {188                    buf.append(s).append(SPACE);189                } ,190                (e) -> {191                    thrown = new RuntimeException(((Throwable) e).getMessage());192                } ,193                () -> buf.append("!"));194        if ("Hello world!".compareTo(buf.toString()) != 0) {195            System.out.println("failed 5");196            throw thrown;197        }198    }199    /**200     * Print name and elapsed time for each test.201     * @see "http://stackoverflow.com/a/32460841/1149606" 202     */203    @Rule204    public TestRule watcher = new TestWatcher() {205        private Stopwatch stopwatch = new Stopwatch();206        @Override207        protected void starting(Description description) {208            stopwatch.start();209            System.out.println("[[[<==== Start: [" + description.getTestClass().getSimpleName() + "."210                    + description.getMethodName() + "]");211        }212        @Override213        protected void finished(Description description) {214            long timeEnd = stopwatch.elapsed(TimeUnit.MILLISECONDS);215            System.out216                    .println("[[[>==== End: [" + description.getMethodName() + "] Elapsed: " + timeEnd + " ms");217        }218    };219}...

Source:StopwatchTest.java

...107    public static class DurationDuringTestTest extends AbstractStopwatchTest {108        @Test109        public void duration() {110            simulateTimePassing(300L);111            assertEquals(300L, stopwatch.runtime(MILLISECONDS));112            simulateTimePassing(500L);113            assertEquals(800L, stopwatch.runtime(MILLISECONDS));114        }115    }116    public static class DurationAfterTestTest extends AbstractStopwatchTest {117        @Test118        public void duration() {119            simulateTimePassing(300L);120            assertEquals(300L, stopwatch.runtime(MILLISECONDS));121        }122        @Override123        protected void afterStopwatchRule() {124            assertEquals(300L, stopwatch.runtime(MILLISECONDS));125            simulateTimePassing(500L);126            assertEquals(300L, stopwatch.runtime(MILLISECONDS));127        }128    }129    @Before130    public void init() {131        record = new Record();132        finishedRecord = new Record();133        simulateTimePassing(1L);134    }135    private static Result runTest(Class<?> test) {136        simulateTimePassing(1L);137        JUnitCore junitCore = new JUnitCore();138        return junitCore.run(Request.aClass(test).getRunner());139    }140    private static void simulateTimePassing(long millis) {141        fakeTimeNanos += TimeUnit.MILLISECONDS.toNanos(millis);142    }143    @Test144    public void succeeded() {145        Result result = runTest(SuccessfulTest.class);146        assertEquals(0, result.getFailureCount());147        assertThat(record.name, is("successfulTest"));148        assertThat(record.name, is(finishedRecord.name));149        assertThat(record.status, is(TestStatus.SUCCEEDED));150        assertTrue("timeSpent > 0", record.duration > 0);151        assertThat(record.duration, is(finishedRecord.duration));152    }153    @Test154    public void failed() {155        Result result = runTest(FailedTest.class);156        assertEquals(1, result.getFailureCount());157        assertThat(record.name, is("failedTest"));158        assertThat(record.name, is(finishedRecord.name));159        assertThat(record.status, is(TestStatus.FAILED));160        assertTrue("timeSpent > 0", record.duration > 0);161        assertThat(record.duration, is(finishedRecord.duration));162    }163    @Test164    public void skipped() {165        Result result = runTest(SkippedTest.class);166        assertEquals(0, result.getFailureCount());167        assertThat(record.name, is("skippedTest"));168        assertThat(record.name, is(finishedRecord.name));169        assertThat(record.status, is(TestStatus.SKIPPED));170        assertTrue("timeSpent > 0", record.duration > 0);171        assertThat(record.duration, is(finishedRecord.duration));172    }173    @Test174    public void runtimeDuringTestShouldReturnTimeSinceStart() {175        Result result = runTest(DurationDuringTestTest.class);176        assertTrue(result.wasSuccessful());177    }178  @Test179    public void runtimeAfterTestShouldReturnRunDuration() {180        Result result = runTest(DurationAfterTestTest.class);181        assertTrue(result.wasSuccessful());182    }183}...

Source:Stopwatch.java

...12    }13    Stopwatch(Clock clock2) {14        this.clock = clock2;15    }16    public long runtime(TimeUnit unit) {17        return unit.convert(getNanos(), TimeUnit.NANOSECONDS);18    }19    /* access modifiers changed from: protected */20    public void succeeded(long nanos, Description description) {21    }22    /* access modifiers changed from: protected */23    public void failed(long nanos, Throwable e, Description description) {24    }25    /* access modifiers changed from: protected */26    public void skipped(long nanos, AssumptionViolatedException e, Description description) {27    }28    /* access modifiers changed from: protected */29    public void finished(long nanos, Description description) {30    }...

runtime

Using AI Code Generation

1import org.junit.rules.Stopwatch;2import org.junit.Rule;3public class TestStopwatch {4    public Stopwatch stopwatch = new Stopwatch() {5        protected void finished(long nanos, Description description) {6            System.out.println("Finished in " + nanos + " nanoseconds");7        }8    };9    public void test() throws InterruptedException {10        Thread.sleep(1000);11    }12}13import org.junit.Rule;14import org.junit.Test;15import org.junit.rules.Stopwatch;16import org.junit.runner.Description;17public class TestStopwatch {18    public Stopwatch stopwatch = new Stopwatch() {19        protected void finished(long nanos, Description description) {20            System.out.println(description.getMethodName() + " finished in " + nanos + " nanoseconds");21        }22    };23    public void test1() throws InterruptedException {24        Thread.sleep(1000);25    }26    public void test2() throws InterruptedException {27        Thread.sleep(1000);28    }29}30import org.junit.Rule;31import org.junit.Test;32import org.junit.rules.Stopwatch;33import org.junit.runner.Description;34public class TestStopwatch {35    public Stopwatch stopwatch = new Stopwatch() {36        protected void finished(long nanos, Description description) {37            System.out.println("Finished in " + nanos + " nanoseconds");38        }39    };40    public void test1() throws InterruptedException {41        Thread.sleep(1000);42    }43    public void test2() throws

runtime

Using AI Code Generation

1import org.junit.rules.Stopwatch;2import org.junit.runner.Description;3import org.junit.runners.model.Statement;4import java.util.concurrent.TimeUnit;5public class StopwatchRule implements org.junit.rules.TestRule {6    private final Stopwatch stopwatch = new Stopwatch();7    private final StringBuilder text = new StringBuilder();8    private final String name;9    public StopwatchRule(String name) {10        this.name = name;11    }12    public Statement apply(Statement base, Description description) {13        return stopwatch.apply(base, description);14    }15    public String getLog() {16        return text.toString();17    }18    public void finish() {19        text.append(String.format("## %s took %s%n", name, stopwatch.runtime(TimeUnit.MILLISECONDS)));20    }21}22public class StopWatchTest {23    public StopwatchRule stopwatch = new StopwatchRule("test1");24    public void test1() throws InterruptedException {25        Thread.sleep(1000);26    }27}

runtime

Using AI Code Generation

1import org.junit.rules.Stopwatch;2import org.junit.Rule;3import org.junit.Test;4import org.junit.runner.Description;5import java.util.concurrent.TimeUnit;6import org.junit.runners.model.Statement;7public class TestStopWatch {8    public Stopwatch stopwatch = new Stopwatch() {9        protected void succeeded(long nanos, Description description) {10            System.out.println(description.getDisplayName() + " succeeded in " + nanos + " nanoseconds");11        }12        protected void failed(long nanos, Throwable e, Description description) {13            System.out.println(description.getDisplayName() + " failed in " + nanos + " nanoseconds");14        }15        protected void finished(long nanos, Description description) {16            System.out.println(description.getDisplayName() + " finished in " + nanos + " nanoseconds");17        }18    };19    public void test1() throws Exception {20        TimeUnit.SECONDS.sleep(1);21    }22    public void test2() throws Exception {23        TimeUnit.SECONDS.sleep(2);24    }25}

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