add PluginFactoryInitializationTest and PluginMapTest (#7)

* add PluginFactoryInitializationTest and PluginMapTest

* fix typo

src/test/java/com/teragrep/akv_01/plugin/PluginFactoryInitializationTest.java

@@ -0,0 +1,78 @@
+/*
+ * Key Value Mapping for Microsoft Azure EventHub
+ * Copyright (C) 2024 Suomen Kanuuna Oy
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ *
+ * Additional permission under GNU Affero General Public License version 3
+ * section 7
+ *
+ * If you modify this Program, or any covered work, by linking or combining it
+ * with other code, such other code is not for that reason alone subject to any
+ * of the requirements of the GNU Affero GPL version 3 as long as this Program
+ * is the same Program as licensed from Suomen Kanuuna Oy without any additional
+ * modifications.
+ *
+ * Supplemented terms under GNU Affero General Public License version 3
+ * section 7
+ *
+ * Origin of the software must be attributed to Suomen Kanuuna Oy. Any modified
+ * versions must be marked as "Modified version of" The Program.
+ *
+ * Names of the licensors and authors may not be used for publicity purposes.
+ *
+ * No rights are granted for use of trade names, trademarks, or service marks
+ * which are in The Program if any.
+ *
+ * Licensee must indemnify licensors and authors for any liability that these
+ * contractual assumptions impose on licensors and authors.
+ *
+ * To the extent this program is licensed as part of the Commercial versions of
+ * Teragrep, the applicable Commercial License may apply to this file if you as
+ * a licensee so wish it.
+ */
+package com.teragrep.akv_01.plugin;
+
+import nl.jqno.equalsverifier.EqualsVerifier;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.time.ZonedDateTime;
+import java.util.HashMap;
+
+public class PluginFactoryInitializationTest {
+
+    @Test
+    void testSuccessfulInitialization() {
+        PluginFactoryInitialization pi = new PluginFactoryInitialization(
+                "com.teragrep.akv_01.plugin.PluginStubFactory"
+        );
+        PluginFactory pluginFactory = Assertions.assertDoesNotThrow(pi::pluginFactory);
+        Assertions.assertEquals(PluginStubFactory.class, pluginFactory.getClass());
+        Assertions
+                .assertThrows(UnsupportedOperationException.class, () -> pluginFactory.plugin("dummy-config").syslogMessage("event", new HashMap<>(), ZonedDateTime.now(), "offset", new HashMap<>(), new HashMap<>()));
+    }
+
+    @Test
+    void testFailedInitialization() {
+        PluginFactoryInitialization pi = new PluginFactoryInitialization("NonExistentPlugin");
+        Assertions.assertThrows(ClassNotFoundException.class, pi::pluginFactory);
+    }
+
+    @Test
+    void testEqualsContract() {
+        EqualsVerifier.simple().forClass(PluginFactoryInitialization.class).verify();
+    }
+}

src/test/java/com/teragrep/akv_01/plugin/PluginMapTest.java

@@ -0,0 +1,103 @@
+/*
+ * Key Value Mapping for Microsoft Azure EventHub
+ * Copyright (C) 2024 Suomen Kanuuna Oy
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ *
+ * Additional permission under GNU Affero General Public License version 3
+ * section 7
+ *
+ * If you modify this Program, or any covered work, by linking or combining it
+ * with other code, such other code is not for that reason alone subject to any
+ * of the requirements of the GNU Affero GPL version 3 as long as this Program
+ * is the same Program as licensed from Suomen Kanuuna Oy without any additional
+ * modifications.
+ *
+ * Supplemented terms under GNU Affero General Public License version 3
+ * section 7
+ *
+ * Origin of the software must be attributed to Suomen Kanuuna Oy. Any modified
+ * versions must be marked as "Modified version of" The Program.
+ *
+ * Names of the licensors and authors may not be used for publicity purposes.
+ *
+ * No rights are granted for use of trade names, trademarks, or service marks
+ * which are in The Program if any.
+ *
+ * Licensee must indemnify licensors and authors for any liability that these
+ * contractual assumptions impose on licensors and authors.
+ *
+ * To the extent this program is licensed as part of the Commercial versions of
+ * Teragrep, the applicable Commercial License may apply to this file if you as
+ * a licensee so wish it.
+ */
+package com.teragrep.akv_01.plugin;
+
+import jakarta.json.Json;
+import jakarta.json.JsonException;
+import jakarta.json.JsonStructure;
+import nl.jqno.equalsverifier.EqualsVerifier;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.util.Map;
+
+public class PluginMapTest {
+
+    @Test
+    void testEmptyJsonObject() {
+        JsonStructure jsonStructure = Json.createObjectBuilder().build();
+        PluginMap pluginMap = new PluginMap(jsonStructure);
+        JsonException je = Assertions.assertThrows(JsonException.class, pluginMap::asUnmodifiableMap);
+        Assertions.assertEquals("Expected top-level structure to be a non-empty object", je.getMessage());
+    }
+
+    @Test
+    void testEmptyJsonArray() {
+        JsonStructure jsonStructure = Json.createArrayBuilder().build();
+        PluginMap pluginMap = new PluginMap(jsonStructure);
+        JsonException je = Assertions.assertThrows(JsonException.class, pluginMap::asUnmodifiableMap);
+        Assertions.assertEquals("Expected <OBJECT> but got <[ARRAY]> in top-level structure", je.getMessage());
+    }
+
+    @Test
+    void testNoDefaultPluginFactoryClassName() {
+        JsonStructure jsonStructure = Json.createObjectBuilder().add("resourceIds", Json.createArrayBuilder()).build();
+        PluginMap pluginMap = new PluginMap(jsonStructure);
+        JsonException je = Assertions.assertThrows(JsonException.class, pluginMap::asUnmodifiableMap);
+        Assertions
+                .assertEquals(
+                        "Non-existing name/value pair in the object for key defaultPluginFactoryClass", je.getMessage()
+                );
+    }
+
+    @Test
+    void testCorrectJson() {
+        JsonStructure jsonStructure = Json
+                .createObjectBuilder()
+                .add("defaultPluginFactoryClass", "com.teragrep.akv_01.PluginImpl")
+                .add("resourceIds", Json.createArrayBuilder().add(Json.createObjectBuilder().add("resourceId", "id").add("pluginFactoryClass", "class").add("pluginFactoryConfig", "/src/test/resources/class.json"))).build();
+        PluginMap pluginMap = new PluginMap(jsonStructure);
+        final Map<String, PluginFactoryConfig> map = Assertions.assertDoesNotThrow(pluginMap::asUnmodifiableMap);
+        Assertions.assertEquals("class", map.get("id").pluginFactoryClassName());
+        Assertions.assertEquals("/src/test/resources/class.json", map.get("id").configPath());
+        Assertions.assertEquals("com.teragrep.akv_01.PluginImpl", pluginMap.defaultPluginFactoryClassName());
+    }
+
+    @Test
+    void testEqualsContract() {
+        EqualsVerifier.simple().forClass(PluginMap.class).verify();
+    }
+}