Add a minimal test for the parser

src/main/java/org/openrewrite/java/dependencies/oldgroupids/ParseDefinitionMigrations.java

@@ -53,7 +53,7 @@ public static void main(String[] args) throws IOException {
         parseDefinitionMigrations(repo, csv);
     }
 
-    private static void parseDefinitionMigrations(File repo, File csv) throws IOException {
+    static void parseDefinitionMigrations(File repo, File csv) throws IOException {
         ObjectMapper objectMapper = getObjectMapper();
 
         Path uc = repo.toPath().resolve("uc");

src/test/java/org/openrewrite/java/dependencies/oldgroupids/ParseDefinitionMigrationsTest.java

@@ -0,0 +1,24 @@
+package org.openrewrite.java.dependencies.oldgroupids;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Path;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class ParseDefinitionMigrationsTest {
+    @Test
+    void parseDefinitionMigrations(@TempDir Path tempDir) throws IOException {
+        ParseDefinitionMigrations parseDefinitionMigrations = new ParseDefinitionMigrations();
+        Path csv = tempDir.resolve("migrations.csv");
+        parseDefinitionMigrations.parseDefinitionMigrations(new File("src/test/resources"), csv.toFile());
+        assertThat(csv).hasContent("""
+          acegisecurity,,org.acegisecurity,,
+          activation,activation,javax.activation,activation,
+          com.jcraft,jsch,com.github.mwiede,jsch,"See https://www.matez.de/index.php/2020/06/22/the-future-of-jsch-without-ssh-rsa/"
+          """);
+    }
+}

src/test/resources/uc/og-definitions.json

@@ -0,0 +1,13 @@
+{
+  "date": "2024/12/05",
+  "migration": [
+    {
+      "old": "acegisecurity",
+      "new": "org.acegisecurity"
+    },
+    {
+      "old": "activation:activation",
+      "new": "javax.activation:activation"
+    }
+  ]
+}

src/test/resources/uc/og-unofficial-definitions.json

@@ -0,0 +1,12 @@
+{
+  "date": "2024/01/12",
+  "migration": [
+    {
+      "old": "com.jcraft:jsch",
+      "proposal": [
+        "com.github.mwiede:jsch"
+      ],
+      "context": "See https://www.matez.de/index.php/2020/06/22/the-future-of-jsch-without-ssh-rsa/"
+    }
+  ]
+}