Add tests for settings

src/main/java/io/huangsam/photohaul/Main.java

@@ -19,7 +19,7 @@
 
 public class Main {
     private static final Logger LOG = getLogger(Main.class);
-    private static final Settings SETTINGS = new Settings();
+    private static final Settings SETTINGS = new Settings("config.properties");
 
     public static void main(String[] args) {
         PhotoPathVisitor pathVisitor = new PhotoPathVisitor();

src/main/java/io/huangsam/photohaul/Settings.java

@@ -9,9 +9,9 @@
 public class Settings {
     private final Properties properties;
 
-    public Settings() {
+    public Settings(String name) {
         properties = new Properties();
-        try (InputStream input = this.getClass().getClassLoader().getResourceAsStream("config.properties")) {
+        try (InputStream input = this.getClass().getClassLoader().getResourceAsStream(name)) {
             properties.load(input);
         } catch (IOException e) {
             throw new RuntimeException(e);

src/main/resources/config.properties

@@ -1,2 +1,2 @@
-source.root=Pictures/Dummy PNG
-target.root=Pictures/Dummy FIN
+source.root=Pictures/Source
+target.root=Pictures/Target

src/main/resources/path-example.properties

@@ -0,0 +1,2 @@
+source.root=Dummy/Source
+target.root=Dummy/Target

src/test/java/io/huangsam/photohaul/TestSettings.java

@@ -0,0 +1,19 @@
+package io.huangsam.photohaul;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+public class TestSettings {
+    private static final Settings SETTINGS = new Settings("path-example.properties");
+
+    @Test
+    void testGetSourceRoot() {
+        assertTrue(SETTINGS.getSourceRoot().endsWith("Dummy/Source"));
+    }
+
+    @Test
+    void testGetTargetRoot() {
+        assertTrue(SETTINGS.getTargetRoot().endsWith("Dummy/Target"));
+    }
+}