build(plugin): establish build and release pipeline

src/test/java/games/dmg/spigotstealth/DeliveryConfigurationTest.java

@@ -0,0 +1,27 @@
+package games.dmg.spigotstealth;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import org.junit.jupiter.api.Test;
+
+class DeliveryConfigurationTest {
+    @Test
+    void ciBuildsChecksAndUploadsDevelopmentJar() throws IOException {
+        String workflow = Files.readString(Path.of(".gitea/workflows/ci.yml"));
+        assertTrue(workflow.contains("./gradlew clean check jar"));
+        assertTrue(workflow.contains("commitlint"));
+        assertTrue(workflow.contains("spigot-stealth-${{ github.sha }}"));
+    }
+
+    @Test
+    void mainBranchReleaseBuildsAndUploadsVersionedJar() throws IOException {
+        String workflow = Files.readString(Path.of(".gitea/workflows/release.yml"));
+        assertTrue(workflow.contains("semantic-release"));
+        assertTrue(workflow.contains("-PreleaseVersion=\"$VERSION\""));
+        assertTrue(workflow.contains("spigot-stealth-${VERSION}.jar"));
+        assertTrue(workflow.contains("/releases/${release_id}/assets"));
+    }
+}

src/test/java/games/dmg/spigotstealth/PluginMetadataTest.java

@@ -0,0 +1,33 @@
+package games.dmg.spigotstealth;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.io.InputStream;
+import java.util.Map;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.junit.jupiter.api.Test;
+import org.yaml.snakeyaml.Yaml;
+
+class PluginMetadataTest {
+    @Test
+    void pluginEntrypointExtendsJavaPlugin() throws ClassNotFoundException {
+        Class<?> pluginClass = Class.forName("games.dmg.spigotstealth.SpigotStealthPlugin");
+        assertTrue(JavaPlugin.class.isAssignableFrom(pluginClass));
+    }
+
+    @Test
+    void exposesSpigotStealthPluginAndCommands() {
+        try (InputStream input = getClass().getClassLoader().getResourceAsStream("plugin.yml")) {
+            assertNotNull(input, "plugin.yml must be packaged");
+            Map<String, Object> metadata = new Yaml().load(input);
+            assertEquals("SpigotStealth", metadata.get("name"));
+            assertEquals("games.dmg.spigotstealth.SpigotStealthPlugin", metadata.get("main"));
+            assertNotNull(metadata.get("commands"));
+            assertNotNull(metadata.get("permissions"));
+        } catch (java.io.IOException exception) {
+            throw new AssertionError(exception);
+        }
+    }
+}