Add tests from micronaut-graal-tests (#666)

* Add tests from micronaut-graal-tests

This PR copies the tests across from the micronaut-graal-tests project for cache

https://github.com/micronaut-graal-tests/micronaut-cache-graal/tree/3.10.x

We can then tick it off on the issue tasks in core

micronaut-projects/micronaut-core#9083

* Remove unused server

test-suite-caffeine-native/build.gradle

@@ -14,7 +14,9 @@ repositories {
 
 dependencies {
     testAnnotationProcessor(mn.micronaut.inject.java)
-    testImplementation projects.micronautCacheCaffeine
+    testAnnotationProcessor(mnSerde.micronaut.serde.processor)
+    testImplementation(mnSerde.micronaut.serde.api)
+    testImplementation(projects.micronautCacheCaffeine)
     testImplementation(mn.micronaut.http.server.netty)
     testImplementation(mn.micronaut.http.client)
     testImplementation(mnTest.micronaut.test.junit5)

test-suite-caffeine-native/src/test/java/io/micronaut/cache/News.java

@@ -0,0 +1,37 @@
+package io.micronaut.cache;
+
+import io.micronaut.serde.annotation.Serdeable;
+
+import java.time.Month;
+import java.util.List;
+
+@Serdeable
+public class News {
+    private Month month;
+
+    private List<String> headlines;
+
+    public News() {
+    }
+
+    public News(Month month, List<String> headlines) {
+        this.month = month;
+        this.headlines = headlines;
+    }
+
+    public Month getMonth() {
+        return month;
+    }
+
+    public void setMonth(Month month) {
+        this.month = month;
+    }
+
+    public List<String> getHeadlines() {
+        return headlines;
+    }
+
+    public void setHeadlines(List<String> headlines) {
+        this.headlines = headlines;
+    }
+}

test-suite-caffeine-native/src/test/java/io/micronaut/cache/NewsController.java

@@ -0,0 +1,21 @@
+package io.micronaut.cache;
+
+import io.micronaut.http.annotation.Controller;
+import io.micronaut.http.annotation.Get;
+
+import java.time.Month;
+
+@Controller
+public class NewsController {
+
+    private final NewsService newsService;
+
+    public NewsController(NewsService newsService) {
+        this.newsService = newsService;
+    }
+
+    @Get("/{month}")
+    public News index(Month month) {
+        return new News(month, newsService.headlines(month));
+    }
+}

test-suite-caffeine-native/src/test/java/io/micronaut/cache/NewsControllerTest.java

@@ -0,0 +1,36 @@
+package io.micronaut.cache;
+
+import io.micronaut.http.HttpRequest;
+import io.micronaut.http.client.HttpClient;
+import io.micronaut.http.client.annotation.Client;
+import io.micronaut.http.uri.UriBuilder;
+import io.micronaut.test.extensions.junit5.annotation.MicronautTest;
+import jakarta.inject.Inject;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.Timeout;
+
+import java.time.Month;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+@MicronautTest
+class NewsControllerTest {
+
+    @Inject
+    @Client("/")
+    HttpClient client;
+
+    @Timeout(4)
+    @Test
+    void fetchingOctoberHeadlinesUsesCache() {
+        HttpRequest<?> request = HttpRequest.GET(UriBuilder.of("/").path(Month.OCTOBER.toString()).build());
+
+        News news = client.toBlocking().retrieve(request, News.class);
+        String expected = "Micronaut AOP: Awesome flexibility without the complexity";
+        assertEquals(List.of(expected), news.getHeadlines());
+
+        news = client.toBlocking().retrieve(request, News.class);
+        assertEquals(List.of(expected), news.getHeadlines());
+    }
+}

test-suite-caffeine-native/src/test/java/io/micronaut/cache/NewsService.java

@@ -0,0 +1,58 @@
+package io.micronaut.cache;
+
+import io.micronaut.cache.annotation.CacheInvalidate;
+import io.micronaut.cache.annotation.CachePut;
+import io.micronaut.cache.annotation.Cacheable;
+import jakarta.inject.Singleton;
+
+import java.time.Month;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+
+@Singleton
+public class NewsService {
+
+    Map<Month, List<String>> headlines = new HashMap<>(Map.of(
+        Month.NOVEMBER, List.of(
+            "Micronaut Graduates to Trial Level in Thoughtworks technology radar Vol.1",
+            "Micronaut AOP: Awesome flexibility without the complexity"
+        ),
+        Month.OCTOBER, Collections.singletonList("Micronaut AOP: Awesome flexibility without the complexity")
+    ));
+
+    @SuppressWarnings("java:S2925") // Sleep is used for testing purposes only
+    @Cacheable(value = "headlines", parameters = {"month"})
+    public List<String> headlines(Month month) {
+        try {
+            TimeUnit.SECONDS.sleep(3);
+            return headlines.get(month);
+        } catch (InterruptedException e) {
+            return null;
+        }
+    }
+
+    @CachePut(value = "headlines", parameters = {"month"})
+    public List<String> addHeadline(Month month, String headline) {
+        if (headlines.containsKey(month)) {
+            List<String> l = new ArrayList<>(headlines.get(month));
+            l.add(headline);
+            headlines.put(month, l);
+        } else {
+            headlines.put(month, Collections.singletonList(headline));
+        }
+        return headlines.get(month);
+    }
+
+    @CacheInvalidate(value = "headlines", parameters = {"month"})
+    public void removeHeadline(Month month, String headline) {
+        if (headlines.containsKey(month)) {
+            List<String> l = new ArrayList<>(headlines.get(month));
+            l.remove(headline);
+            headlines.put(month, l);
+        }
+    }
+}

test-suite-caffeine-native/src/test/java/io/micronaut/cache/NewsServiceTest.java

@@ -0,0 +1,97 @@
+package io.micronaut.cache;
+
+import io.micronaut.test.extensions.junit5.annotation.MicronautTest;
+import jakarta.inject.Inject;
+import org.junit.jupiter.api.MethodOrderer;
+import org.junit.jupiter.api.Order;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestMethodOrder;
+import org.junit.jupiter.api.Timeout;
+
+import java.time.Month;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+@TestMethodOrder(MethodOrderer.OrderAnnotation.class)
+@MicronautTest
+@SuppressWarnings("java:S5976") // Sonar thinks these can be parameterized
+class NewsServiceTest {
+
+    @Inject
+    NewsService newsService;
+
+    @Timeout(4)
+    @Test
+    @Order(1)
+    void firstInvocationOfNovemberDoesNotHitCache() {
+        List<String> headlines = newsService.headlines(Month.NOVEMBER);
+        assertEquals(2, headlines.size());
+    }
+
+    @Timeout(1)
+    @Test
+    @Order(2)
+    void secondInvocationOfNovemberHitsCache() {
+        List<String> headlines = newsService.headlines(Month.NOVEMBER);
+        assertEquals(2, headlines.size());
+    }
+
+    @Timeout(4)
+    @Test
+    @Order(3)
+    void firstInvocationOfOctoberDoesNotHitCache() {
+        List<String> headlines = newsService.headlines(Month.OCTOBER);
+        assertEquals(1, headlines.size());
+    }
+
+    @Timeout(1)
+    @Test
+    @Order(4)
+    void secondInvocationOfOctoberHitsCache() {
+        List<String> headlines = newsService.headlines(Month.OCTOBER);
+        assertEquals(1, headlines.size());
+    }
+
+    @Timeout(1)
+    @Test
+    @Order(5)
+    void addingAHeadlineToNovemberUpdatesCache() {
+        List<String> headlines = newsService.addHeadline(Month.NOVEMBER, "Micronaut 1.3 Milestone 1 Released");
+        assertEquals(3, headlines.size());
+    }
+
+    @Timeout(1)
+    @Test
+    @Order(6)
+    void novemberCacheWasUpdatedByCachePutAndThusTheValueIsRetrievedFromTheCache() {
+        List<String> headlines = newsService.headlines(Month.NOVEMBER);
+        assertEquals(3, headlines.size());
+    }
+
+    @Timeout(1)
+    @Test
+    @Order(7)
+    void invalidateNovemberCacheWithCacheInvalidate() {
+        assertDoesNotThrow(() -> {
+            newsService.removeHeadline(Month.NOVEMBER, "Micronaut 1.3 Milestone 1 Released");
+        });
+    }
+
+    @Timeout(1)
+    @Test
+    @Order(8)
+    void octoberCacheIsStillValid() {
+        List<String> headlines = newsService.headlines(Month.OCTOBER);
+        assertEquals(1, headlines.size());
+    }
+
+    @Timeout(4)
+    @Test
+    @Order(9)
+    void novemberCacheWasInvalidated() {
+        List<String> headlines = newsService.headlines(Month.NOVEMBER);
+        assertEquals(2, headlines.size());
+    }
+}