Remapper debug

src/main/java/xland/mcmodbridge/fa2fomapper/map/F2FRemapper.java

@@ -8,6 +8,7 @@ public class F2FRemapper extends Remapper {
 
     public F2FRemapper(Mapping mapping) {
         this.mapping = mapping;
+        if ("true".equals(System.getProperty("fa2fomapper.export"))) org.apache.logging.log4j.LogManager.getLogger().warn("[F2F] Using mapping: {}", mapping);
     }
 
     @Override

src/test/java/xland/mctestmod/fa2fomapper/test/MappingTest.java

@@ -0,0 +1,39 @@
+package xland.mctestmod.fa2fomapper.test;
+
+import org.junit.jupiter.api.Test;
+import org.objectweb.asm.ClassReader;
+import org.objectweb.asm.ClassWriter;
+import org.objectweb.asm.commons.ClassRemapper;
+import xland.mcmodbridge.fa2fomapper.api.Mapping;
+import xland.mcmodbridge.fa2fomapper.api.tiny.TinyUtils;
+import xland.mcmodbridge.fa2fomapper.map.F2FClassRemapper;
+import xland.mcmodbridge.fa2fomapper.map.F2FRemapper;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.StringReader;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+public class MappingTest {
+    Mapping mapping = TinyUtils.read(new BufferedReader(new StringReader(TinyMappingTest.MAPPING)),
+            "base", "forge17");
+
+    @Test
+    public void test() throws IOException {
+        final Path path = Paths.get(
+                "/tmp/input-463fc9ae-a779-413c-8f16-a9d5d518a0c2.class");
+        if (!Files.exists(path)) return;
+        ClassReader input = new ClassReader(Files.newInputStream(path));
+        ClassWriter out = new ClassWriter(3);
+        ClassRemapper remapper = new F2FClassRemapper(out, new F2FRemapper(mapping));
+        input.accept(remapper, 8);
+
+        try (OutputStream os = Files.newOutputStream(Paths.get(
+                "/tmp/export-463fc9ae-a779-413c-8f16-a9d5d518a0c2.class"))) {
+            os.write(out.toByteArray());
+        }
+    }
+}

src/test/java/xland/mctestmod/fa2fomapper/test/TinyMappingTest.java

@@ -0,0 +1,22 @@
+package xland.mctestmod.fa2fomapper.test;
+
+import org.junit.jupiter.api.Test;
+import xland.mcmodbridge.fa2fomapper.api.Mapping;
+import xland.mcmodbridge.fa2fomapper.api.tiny.TinyUtils;
+
+import java.io.BufferedReader;
+import java.io.StringReader;
+
+public class TinyMappingTest {
+    @Test
+    public void test() {
+        Mapping mapping = TinyUtils.read(new BufferedReader(new StringReader(MAPPING)),
+                "base", "forge17");
+        System.out.println(mapping);
+    }
+
+    static final String MAPPING = "v1\tbase\tforge16\tforge17\n" +
+            "CLASS\tnet/minecraft/class_2960\tnet/minecraft/util/ResourceLocation\tnet/minecraft/resources/ResourceLocation\n" +
+            "METHOD\tnet/minecraft/class_2960\t()Ljava/lang/String;\tmethod_12836\tfunc_110624_b\tm_135827_\n" +
+            "METHOD\tnet/minecraft/class_2960\t()Ljava/lang/String;\tmethod_12832\tfunc_110623_a\tm_135815_\n";
+}