Added unit tests for storage package

Author: pc9795

src/test/java/com/exceptionless/exceptionlessclient/storage/InMemoryStorageProviderTest.java

@@ -0,0 +1,26 @@
+package com.exceptionless.exceptionlessclient.storage;
+
+import com.exceptionless.exceptionlessclient.models.Event;
+import com.exceptionless.exceptionlessclient.models.settings.ServerSettings;
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class InMemoryStorageProviderTest {
+  @Test
+  public void itCanSetStorageCorrectly() {
+    InMemoryStorageProvider storageProvider =
+        InMemoryStorageProvider.builder().maxQueueItems(2).build();
+
+    storageProvider.getQueue().save(Event.builder().referenceId("123-abcdef").build());
+    storageProvider.getQueue().save(Event.builder().referenceId("456-abcdef").build());
+    storageProvider.getQueue().save(Event.builder().referenceId("789-abcdef").build());
+
+    storageProvider.getSettings().save(ServerSettings.builder().version(1L).build());
+    storageProvider.getSettings().save(ServerSettings.builder().version(2L).build());
+
+    assertThat(storageProvider.getSettings().peek().getValue().getVersion()).isEqualTo(2);
+    assertThat(storageProvider.getQueue().peek().getValue().getReferenceId())
+        .isEqualTo("456-abcdef");
+  }
+}

src/test/java/com/exceptionless/exceptionlessclient/storage/InMemoryStorageTest.java

@@ -0,0 +1,74 @@
+package com.exceptionless.exceptionlessclient.storage;
+
+import com.exceptionless.exceptionlessclient.models.storage.StorageItem;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class InMemoryStorageTest {
+  private InMemoryStorage<Integer> storage;
+
+  @BeforeEach
+  public void setup() {
+    storage = InMemoryStorage.<Integer>builder().maxItems(2).build();
+  }
+
+  @Test
+  public void itCanSave() {
+    storage.save(123);
+
+    assertThat(storage.peek().getValue()).isEqualTo(123);
+  }
+
+  @Test
+  public void itCanSaveAndRemoveIfExceedTheMaxItemsSize() {
+    storage.save(123);
+    storage.save(456);
+    storage.save(789);
+
+    assertThat(storage.peek().getValue()).isEqualTo(456);
+  }
+
+  @Test
+  public void itCanGetItemsForALimitLessThanCurrentItems() {
+    storage.save(123);
+    storage.save(456);
+
+    List<StorageItem<Integer>> items = storage.get(1);
+    assertThat(items.stream().map(StorageItem::getValue).collect(Collectors.toList()))
+        .isEqualTo(List.of(123));
+  }
+
+  @Test
+  public void itCanGetItemsForALimitEqualToCurrentItems() {
+    storage.save(123);
+    storage.save(456);
+
+    List<StorageItem<Integer>> items = storage.get(2);
+    assertThat(items.stream().map(StorageItem::getValue).collect(Collectors.toList()))
+        .isEqualTo(List.of(123, 456));
+  }
+
+  @Test
+  public void itCanGetItemsForALimitMoreThanCurrentItems() {
+    storage.save(123);
+    storage.save(456);
+
+    List<StorageItem<Integer>> items = storage.get(3);
+    assertThat(items.stream().map(StorageItem::getValue).collect(Collectors.toList()))
+        .isEqualTo(List.of(123, 456));
+  }
+
+  @Test
+  public void itCanRemoveByTimestamp() {
+    storage.save(123);
+    StorageItem<Integer> item = storage.peek();
+    storage.remove(item.getTimestamp());
+
+    assertThat(storage.peek()).isNull();
+  }
+}