fix: resolve import path correctly if in same package

src/main/scala/java2typescript/transformer/imports.scala

@@ -44,9 +44,14 @@ def resolveImportPath(packagePath: Array[String], importPath: Array[String]): St
     .zipAll(importPath, "", "")
     .dropWhile((a, b) => a == b)
 
-  (
-    differing.map(pair => pair(0)).takeWhile(v => v != "").map(v => "..").toList
-      :::
-      differing.map(pair => pair(1)).takeWhile(v => v != "").toList
-    ).mkString("/")
+  if (differing.length == 0)
+    "."
+  else
+    (
+      // while there is something left in the package path, use ".." to ascend
+      differing.map(pair => pair(0)).takeWhile(v => v != "").map(v => "..").toList
+        :::
+        // while there is something in the import path use the name to descend
+        differing.map(pair => pair(1)).takeWhile(v => v != "").toList
+      ).mkString("/")
 }

src/test/resources/fixtures/module.md

@@ -217,3 +217,28 @@ export class A {
     }
 }
 ```
+
+## Import from same directory/package
+```java
+package a.b;
+
+class D {
+}
+```
+```java
+package a.b;
+
+class A {
+    private D d;
+}
+```
+```typescript
+export class D {
+}
+```
+```typescript
+import { D } from "./D.ts";
+export class A {
+    private d: D;
+}
+```

src/test/scala/java2typescript/ImportPathSpec.scala

@@ -21,4 +21,8 @@ class ImportPathSpec extends AnyFlatSpec with should.Matchers {
   "the import path resolver" should "resolve path with partially matching package" in {
     resolveImportPath(Array("a", "b", "f", "g"), Array("a", "b", "c", "d")) should be("../../c/d")
   }
+
+  "the import path resolver" should "resolve a path in the same directory" in {
+    resolveImportPath(Array("a"), Array("a")) should be(".")
+  }
 }