Method get

oshi-core/src/test/java/oshi/util/MemoizerTest.java:72–107

()

    }

    @Test
    void get() throws Throwable {
        // With max time limits these tests take a minute to run. But with no changes to
        // the memoizer it's simply testing overkill. Use a RNG to limit these tests
        // regularly but occasionally run the longer tests.
        int x = new Random().nextInt(50);
        // Set minimal defaults
        int refreshIters = 200; // ~ 2 seconds
        int noRefreshIters = 2_000; // ~ 2 seconds
        if (x == 0) {
            // 2% chance full length noRefresh
            noRefreshIters = 20_000; // ~ 20 seconds
        } else if (x == 1) {
            // 2% chance full length refresh
            refreshIters = 4000; // ~ 40 seconds
        } else if (x < 12) {
            // 20% chance longer noRerfesh
            noRefreshIters = 5_000; // ~ 5 seconds
        } else if (x < 22) {
            // 20% chance longer rerfesh
            refreshIters = 500; // ~ 5 seconds
        }
        // Do tests with no refresh.
        long iterationDurationNanos = TimeUnit.MILLISECONDS.toNanos(1);
        long ttlNanos = -1;
        for (int r = 0; r < noRefreshIters; r++) {
            run(iterationDurationNanos, ttlNanos);
        }
        // Do tests with refresh after 0.1 ms.
        iterationDurationNanos = TimeUnit.MILLISECONDS.toNanos(10);
        ttlNanos = iterationDurationNanos / 100;
        assertThat("ttlNanos should not be zero", ttlNanos, is(not(0L))); // avoid div/0 later
        for (int r = 0; r < refreshIters; r++) {
            run(iterationDurationNanos, ttlNanos);
        }
    }

    private void run(final long iterationDurationNanos, final long ttlNanos) throws Throwable {
        final Supplier<Long> s = new Supplier<Long>() {