asmhatreandClaude Sonnet 5.5
715036b640
One test per question, each writing and asserting its own transcript under output/. Covers lifecycle, extensions, parameterized and dynamic tests, mocks vs spies, verification, strict stubs, static and constructor mocking, and flaky tests. Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01CifR2BE7PBvRy5hT8TS9oz
57 lines
2.5 KiB
Java
57 lines
2.5 KiB
Java
package lab.jm;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assertions.assertFalse;
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import static org.junit.jupiter.api.Assertions.assertTrue;
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import static org.mockito.Mockito.mock;
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import java.time.Clock;
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import java.time.Instant;
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import java.time.ZoneOffset;
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import java.util.Map;
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import lab.jm.fixtures.FlakyFixtures;
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import org.junit.jupiter.api.MethodOrderer;
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import org.junit.jupiter.api.Test;
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/** Q29 and Q30: flaky tests. */
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class F_FlakyTest extends Lab {
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@Test
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void q29_orderDependenceAndTime() {
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q(29, "flaky-order-and-time");
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FlakyFixtures.SharedState.REGISTRY.clear();
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Run forward = Run.of(FlakyFixtures.SharedState.class,
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Map.of("junit.jupiter.testmethod.order.default", MethodOrderer.MethodName.class.getName()));
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FlakyFixtures.SharedState.REGISTRY.clear();
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Run reverse = Run.of(FlakyFixtures.SharedState.class,
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Map.of("junit.jupiter.testmethod.order.default", FlakyFixtures.ReverseOrder.class.getName()));
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p("--- order a_, b_ (alphabetical) ---");
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forward.events.forEach(e -> p("%s", e));
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p("--- order b_, a_ (reversed) ---");
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reverse.events.forEach(e -> p("%s", e));
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reverse.failures.forEach(f -> p(" %s: %s", f.getClass().getSimpleName(), f.getMessage()));
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PaymentGateway gw = mock(PaymentGateway.class);
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Clock morning = Clock.fixed(Instant.parse("2026-10-26T10:00:00Z"), ZoneOffset.UTC);
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Clock night = Clock.fixed(Instant.parse("2026-10-26T23:30:00Z"), ZoneOffset.UTC);
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p("--- time: the same code with an injected Clock ---");
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p("acceptsOrders() at 10:00 UTC : %s", new OrderService(gw, morning).acceptsOrders());
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p("acceptsOrders() at 23:30 UTC : %s", new OrderService(gw, night).acceptsOrders());
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assertTrue(forward.failures.isEmpty());
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assertEquals(1, reverse.failures.size());
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assertTrue(new OrderService(gw, morning).acceptsOrders());
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assertFalse(new OrderService(gw, night).acceptsOrders());
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}
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@Test
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void q30_repeatedTestFailureThreshold() {
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q(30, "repeated-test-failure-threshold");
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Run run = Run.of(FlakyFixtures.Intermittent.class);
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run.events.forEach(e -> p("%s", e));
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long failed = run.events.stream().filter(e -> e.endsWith("FAILED")).count();
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long skipped = run.events.stream().filter(e -> e.contains("SKIPPED")).count();
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p("failed=%d skipped=%d", failed, skipped);
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assertTrue(failed >= 2);
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}
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}
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