#292 tests

src/main/java/io/github/eocqrs/kafka/fake/TopicDoesNotExists.java

@@ -0,0 +1,77 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2023 Aliaksei Bialiauski, EO-CQRS
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package io.github.eocqrs.kafka.fake;
+
+import java.io.IOException;
+import java.io.Serial;
+
+/**
+ * Topic Does Not Exists.
+ *
+ * @author Aliaksei Bialiauski (abialiauski.dev@gmail.com)
+ * @since 0.3.5
+ */
+public final class TopicDoesNotExists extends IOException {
+
+  /**
+   * Serial version UID.
+   */
+  @Serial
+  private static final long serialVersionUID = 3128213925812696697L;
+
+  /**
+   * Empty ctor.
+   */
+  public TopicDoesNotExists() {
+  }
+
+  /**
+   * Ctor.
+   *
+   * @param message Message
+   */
+  public TopicDoesNotExists(final String message) {
+    super(message);
+  }
+
+  /**
+   * Ctor.
+   *
+   * @param message Message
+   * @param cause   Cause
+   */
+  public TopicDoesNotExists(final String message, final Throwable cause) {
+    super(message, cause);
+  }
+
+  /**
+   * Ctor.
+   *
+   * @param cause Cause
+   */
+  public TopicDoesNotExists(final Throwable cause) {
+    super(cause);
+  }
+}

src/test/java/io/github/eocqrs/kafka/fake/FkProducerTest.java

@@ -26,10 +26,13 @@
 
 import io.github.eocqrs.kafka.Producer;
 import io.github.eocqrs.kafka.data.KfData;
+import io.github.eocqrs.xfake.InFile;
+import io.github.eocqrs.xfake.Synchronized;
+import org.hamcrest.MatcherAssert;
+import org.hamcrest.Matchers;
+import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
-import static org.junit.jupiter.api.Assertions.assertThrows;
-
 /**
  * Test case for {@link FkProducer}.
  *
@@ -39,18 +42,73 @@
 final class FkProducerTest {
 
   @Test
-  void createsFakeProducer() {
-    final Producer<String, String> producer = new FkProducer<>();
-    assertThrows(
-      UnsupportedOperationException.class,
-      () ->
-        producer.send(
-          "fake", new KfData<>("fake data", "fake-topic", 0)
+  void createsFakeProducer() throws Exception {
+    final Producer<String, String> producer =
+      new FkProducer<>(
+        new InXml(
+          new Synchronized(
+            new InFile(
+              "test-producer-create", "<broker/>"
+            )
+          )
+        )
+      );
+    MatcherAssert.assertThat(
+      "Fake producer creates",
+      producer,
+      Matchers.notNullValue()
+    );
+    Assertions.assertDoesNotThrow(producer::close);
+  }
+
+  @Test
+  void sendsMessageWithoutTopicExistence() throws Exception {
+    final Producer<String, String> producer =
+      new FkProducer<>(
+        new InXml(
+          new Synchronized(
+            new InFile(
+              "test-producer-no-topic",
+              "<broker/>"
+            )
+          )
         )
+      );
+    Assertions.assertThrows(
+      TopicDoesNotExists.class,
+      () ->
+        producer.send("test-key", new KfData<>("data", "does.not.exist", 0))
     );
-    assertThrows(
-      UnsupportedOperationException.class,
-      producer::close
+    Assertions.assertDoesNotThrow(producer::close);
+  }
+
+  @Test
+  void sendsMessage() throws Exception {
+    final String topic = "test.fake";
+    final String data = "data";
+    final FkBroker broker = new InXml(
+      new Synchronized(
+        new InFile(
+          "test-producer-send", "<broker/>"
+        )
+      )
+    ).with(new TopicDirs(topic).value());
+    final Producer<String, String> producer =
+      new FkProducer<>(
+        broker
+      );
+    producer.send("test-key", new KfData<>(data, topic, 0));
+    MatcherAssert.assertThat(
+      "Message is send in right format",
+      broker.data(
+        "broker/topics/topic[name = '%s']/datasets/dataset[value = '%s']/text()"
+          .formatted(
+            topic,
+            data
+          )
+      ).isEmpty(),
+      Matchers.equalTo(false)
     );
+    Assertions.assertDoesNotThrow(producer::close);
   }
-}
+}