feat: support relative path

heo-core/build.gradle

@@ -32,6 +32,7 @@ dependencies {
 
 tasks.named('test') {
     useJUnitPlatform()
+    systemProperty 'rootDir', "${rootDir}"
 }
 
 publishing {

heo-core/src/main/java/dev/heowc/heo/core/loader/domain/ModuleLoader.java

@@ -24,7 +24,7 @@ public class ModuleLoader {
     private final String rootPackage;
 
     public ModuleLoader(String projectDirectory, String rootPackage) {
-        this.projectPath = Path.of(projectDirectory);
+        this.projectPath = Path.of(projectDirectory).toAbsolutePath();
         this.rootPackage = rootPackage;
     }
 

heo-core/src/test/java/dev/heowc/heo/core/loader/domain/ModuleLoaderVariousPathTest.java

@@ -0,0 +1,36 @@
+package dev.heowc.heo.core.loader.domain;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.io.IOException;
+import java.nio.file.Path;
+import java.util.List;
+
+import org.junit.jupiter.api.Test;
+
+import dev.heowc.heo.core.Module;
+
+class ModuleLoaderVariousPathTest {
+
+    private final String rootDir = System.getProperty("rootDir");
+
+    @Test
+    void absolutePath() throws IOException {
+        final Path cycleIntergationTestProjectPath = Path.of(rootDir, "heo-core").toAbsolutePath();
+
+        final List<Module> modules = new ModuleLoader(cycleIntergationTestProjectPath.toString(),
+                                                      "dev.heowc.heo.core").loadModules();
+
+        assertThat(modules).hasSize(4);
+    }
+
+    @Test
+    void relativePath() throws IOException {
+        final Path cycleIntergationTestProjectPath = Path.of("");
+
+        final List<Module> modules = new ModuleLoader(cycleIntergationTestProjectPath.toString(),
+                                                      "dev.heowc.heo.core").loadModules();
+
+        assertThat(modules).hasSize(4);
+    }
+}